Unified handling of translating bpy PSK options to the options passed into the build function

Also fixed a bug where the normal export operator was exporting duplicate objects

.github/workflows/main.yml

@@ -0,0 +1,54 @@
+name: Build Extension
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      BLENDER_VERSION: blender-4.2.0-linux-x64
+      ADDON_NAME: io_scene_psk_psa
+    steps:
+      - uses: actions/checkout@v3
+      - uses: SebRollen/toml-action@v1.2.0
+        id: read_manifest
+        with:
+          file: '${{ env.ADDON_NAME }}/blender_manifest.toml'
+          field: 'version'
+      - name: Set derived environment variables
+        run: |
+          echo "BLENDER_FILENAME=${{ env.BLENDER_VERSION }}.tar.xz" >> $GITHUB_ENV
+          echo "BLENDER_URL=https://mirrors.iu13.net/blender/release/Blender4.2/${{ env.BLENDER_VERSION }}.tar.xz" >> $GITHUB_ENV
+      - name: Install Blender Dependencies
+        run: |
+          sudo apt-get install libxxf86vm-dev -y
+          sudo apt-get install libxfixes3 -y
+          sudo apt-get install libxi-dev -y
+          sudo apt-get install libxkbcommon-x11-0 -y
+          sudo apt-get install libgl1-mesa-glx -y
+      - name: Download & Extract Blender
+        run: |
+          wget -q $BLENDER_URL
+          tar -xf $BLENDER_FILENAME
+          rm -rf $BLENDER_FILENAME
+      - name: Add Blender executable to path
+        run: |
+          echo "${{ github.workspace }}/${{ env.BLENDER_VERSION }}/" >> $GITHUB_PATH
+      - name: Build extension
+        run: |
+          pushd ./${{ env.ADDON_NAME }}
+          blender --command extension build
+          mkdir artifact
+          unzip -q ${{ env.ADDON_NAME }}-${{ steps.read_manifest.outputs.value }}.zip -d ./artifact
+          popd
+      - name: Archive addon
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.ADDON_NAME }}-${{ github.ref_name }}-${{ github.sha }}
+          path: |
+            ./${{ env.ADDON_NAME }}/artifact/*

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "extern/io_scene_psk_psa-translations"]
-	path = extern/io_scene_psk_psa-translations
-	url = https://github.com/DarklightGames/io_scene_psk_psa-translations.git

COPYING

@@ -0,0 +1,674 @@
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+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
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+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
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+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
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+option of following the terms and conditions either of that numbered
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+Foundation.  If the Program does not specify a version number of the
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+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
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+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

LICENSE

@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2019 Darklight Games
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

README-JP.md

@@ -1,84 +0,0 @@
-[![Blender](https://img.shields.io/badge/Blender->=2.9-blue?logo=blender&logoColor=white)](https://www.blender.org/download/ "Download Blender")
-[![GitHub release](https://img.shields.io/github/release/DarklightGames/io_scene_psk_psa?include_prereleases=&sort=semver&color=blue)](https://github.com/DarklightGames/io_scene_psk_psa/releases/)
-
-[![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/L4L3853VR)
-
-この Blender アドオンを使用すると、Unreal Engine の多くのバージョンで使用されている [PSK および PSA ファイル形式](https://wiki.beyondunreal.com/PSK_%26_PSA_file_formats) との間でメッシュとアニメーションをインポートおよびエクスポートできます。
-
-# 互換性
-
-| Blenderのバージョン                                              | アドオンのバージョン                                                                  | Long Term Support |
-|--------------------------------------------------------------|--------------------------------------------------------------------------------|-------------------|
-| 4.0+                                                         | [最新](https://github.com/DarklightGames/io_scene_psk_psa/releases/latest)   | 未定                |
-| [3.4 - 3.6](https://www.blender.org/download/lts/3-6/)       | [5.0.5](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/5.0.5) | ✅️ 2025年6月        |
-| [2.93 - 3.3](https://www.blender.org/download/releases/3-3/) | [4.3.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/4.3.0) | ✅️ 202年9月       |
-
-バグ修正は、[Blender の LTS メンテナンス期間](https://www.blender.org/download/lts/)中のレガシー アドオン バージョンに対して発行されます。 LTS 期間が終了すると、レガシー アドオン バージョンはこのリポジトリのメンテナによってサポートされなくなりますが、バグ修正のためのプル リクエストは受け付けます。
-
-# 機能
-* PSK および PSA ファイルをインポートする。
-* 非標準のファイル セクション データ (頂点法線、追加の UV チャンネル、頂点カラー、シェイプ キーなど) をインポートします。
-* 多数のシーケンスを含む PSA ファイルを操作する場合の効率的なワークフローのためのきめ細かい PSA シーケンス インポート。
-* PSA シーケンスのメタデータ (フレーム レートなど) はインポート時に保存されるため、このデータをエクスポート時に再利用できます。
-* ボーン コレクションは PSK/PSA エクスポートから除外できます。 これは、IK コントローラなどの寄与しないボーンを除外する場合に便利です。
-* PSA シーケンスは、アクションから直接エクスポートすることも、シーンの [タイムライン マーカー](https://docs.blender.org/manual/ja/latest/animation/markers.html) または NLA トラック ストリップを使用して描写することもでき、[NLA](https://docs.blender.org/manual/ja/latest/editors/nla/index.html) シーケンスを作成するとき。
-* 複数のメッシュ オブジェクトをエクスポートするときにマテリアル スロットを手動で並べ替えます。
-
-# 取り付け
-1. 最新バージョンの zip ファイルを [Releases](https://github.com/DarklightGames/io_export_psk_psa/releases) ページからダウンロードします。
-2. Blender 4.0.0 以降を開きます。
-3. Blender の設定に移動します (`編集` > `プリファレンス`)。
-4. `アドオン`タブを選択します。
-5. `インストール...`ボタンをクリックします。
-6. 先ほどダウンロードした `.zip` ファイルを選択し、`アドオンのインストール`をクリックします。
-7. 新しく追加された`インポート-エクスポート: PSK/PSA Importer/Exporter`アドオンを有効にします。
-
-# 使用方法
-## PSKのエクスポート
-1. エクスポートするアーマチュア オブジェクトを選択します。
-2. `ファイル` > `エクスポート` > `Unreal PSK (.psk)`に移動します.
-3. ファイル名を入力して`エクスポート`をクリックします.
-
-## PSK/PSKXのインポート
-1. `ファイル` > `インポート` > `Unreal PSK (.psk/.pskx)`に移動します.
-2. インポートしたい PSK ファイルを選択し、`インポート`をクリックします。
-
-## PSAのエクスポート
-1. エクスポートするアーマチュア オブジェクトを選択します。
-2. `ファイル` > `エクスポート` > `Unreal PSA (.psa)`に移動します.
-3. ファイル名を入力し、`エクスポート`をクリックします。
-
-## PSAのインポート
-1. アニメーションを読み込みたいアーマチュアを選択します。
-2. `ファイル` > `インポート` > `Unreal PSA (.psa)`に移動します。
-3. アニメーションのインポート元となる PSA ファイルを選択します.
-4. インポートしたいアニメーションを選択し、`インポート`をクリックします。
-
-> アーマチュアに適用されたインポートされたアクションを確認するには、[ドープ シート](https://docs.blender.org/manual/ja/latest/editors/dope_sheet/introduction.html) エディタまたは [ノンリニアアニメーション](https://docs.blender.org/manual/ja/latest/editors/nla/introduction.html) エディタを使用する必要があります。
-
-## ローカライゼーション
-
-現在、次の言語がサポートされています。
-
-| 言語 | 地位 | 方法 |
-|-|-|-|
-| 英語 (English) | ✅️ | 🧑 |
-| 日本語 | ✅️ | 🤖 | 
-
-翻訳に問題がある場合は、お気軽に [Weblate](https://weblate.darklightgames.com/projects/io_scene_psk_psa/) に修正を送信してください。
-
-自分の母国語に対するサポートの追加をご希望の場合は、[問題を報告して](http://github.com/DarklightGames/io_scene_psk_psa/issues)ください。
-
-# FAQ
-
-## PSA をインポートした後にアニメーションが表示されないのはなぜですか?
-
-PSA アニメーションをインポートしても、アクションはアーマチュアに自動的に適用されません。これは、PSA には複数のシーケンスをインポートできるため、また、インポーターが必要のないときにシーンを変更するのは悪い形式であるためです。
-
-PSA インポーターは、PSA 内の選択されたシーケンスごとに[アクション](https://docs.blender.org/manual/ja/latest/animation/actions.html)を作成します。これらのアクションは、[アクション エディター](https://docs.blender.org/manual/ja/latest/editors/dope_sheet/action.html)または [NLA エディター](https://docs.blender.org/manual/ja/latest/editors/nla/index.html)を介してアーマチュアに適用できます。
-
-## [UE Viewer](https://www.gildor.org/en/projects/umodel) から抽出した PSK をインポートすると、メッシュ面の法線が不正確になるのはなぜですか?
-
-モデルのメッシュ法線を保持することがワークフローにとって重要な場合、UE Viewer から PSK ファイルをエクスポートすることはお勧めできません。これは、UE Viewer が元の[スムージング グループ](https://en.wikipedia.org/wiki/Smoothing_group)を再構築しようとしないためです。その結果、インポートされた PSK ファイルの法線は、Blender にインポートされたときに不正確になるため、手動で修正する必要があります。
-
-回避策として、[glTF](https://en.wikipedia.org/wiki/GlTF) 形式は明示的な法線をサポートしており、UE Viewer はエクスポート時にメッシュ法線を正しく保存できるため、代わりに UE Viewer から glTF メッシュをエクスポートすることをお勧めします。ただし、インポートされた glTF アーマチュアは、Blender にインポートされたときにボーンの方向が間違っている可能性があります。これを軽減するには、PSK のアーマチュアと glTF のメッシュを組み合わせて最良の結果を得ることができます。

README.md

@@ -1,38 +1,48 @@
 [![Blender](https://img.shields.io/badge/Blender->=2.9-blue?logo=blender&logoColor=white)](https://www.blender.org/download/ "Download Blender")
 [![GitHub release](https://img.shields.io/github/release/DarklightGames/io_scene_psk_psa?include_prereleases=&sort=semver&color=blue)](https://github.com/DarklightGames/io_scene_psk_psa/releases/)
+[![Build Extension](https://github.com/DarklightGames/io_scene_psk_psa/actions/workflows/main.yml/badge.svg)](https://github.com/DarklightGames/io_scene_psk_psa/actions/workflows/main.yml)
 
 [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/L4L3853VR)
 
 This Blender addon allows you to import and export meshes and animations to and from the [PSK and PSA file formats](https://wiki.beyondunreal.com/PSK_%26_PSA_file_formats) used in many versions of the Unreal Engine.
 
-# Compatibility
-
-| Blender Version                                              | Addon Version                                                                  | Long Term Support |
-|--------------------------------------------------------------|--------------------------------------------------------------------------------|-------------------|
-| 4.0+                                                         | [latest](https://github.com/DarklightGames/io_scene_psk_psa/releases/latest)   | TBD               |
-| [3.4 - 3.6](https://www.blender.org/download/lts/3-6/)       | [5.0.5](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/5.0.5) | ✅️ June 2025      |
-| [2.93 - 3.3](https://www.blender.org/download/releases/3-3/) | [4.3.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/4.3.0) | ✅️ September 2024 |
-
-Bug fixes will be issued for legacy addon versions that are under [Blender's LTS maintenance period](https://www.blender.org/download/lts/). Once the LTS period has ended, legacy addon versions will no longer be supported by the maintainers of this repository, although we will accept pull requests for bug fixes. 
+This software is licensed under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.html) license.
 
 # Features
 * Full PSK/PSA import and export capabilities.
 * Non-standard file section data is supported for import only (vertex normals, extra UV channels, vertex colors, shape keys).
 * Fine-grained PSA sequence importing for efficient workflow when working with large PSA files.
-* PSA sequence metadata (e.g., frame rate, sequence name) is preserved on import, allowing this data to be reused on export.
+* PSA sequence metadata (e.g., frame rate) is preserved on import, allowing this data to be reused on export.
 * Specific bone collections can be excluded from PSK/PSA export (useful for excluding non-contributing bones such as IK controllers).
-* PSA sequences can be exported directly from actions or delineated using a scene's [timeline markers](https://docs.blender.org/manual/en/latest/animation/markers.html) or NLA track strips, allowing direct use of the [NLA](https://docs.blender.org/manual/en/latest/editors/nla/index.html) when creating sequences.
+* PSA sequences can be exported directly from actions or delineated using a scene's [timeline markers](https://docs.blender.org/manual/en/latest/animation/markers.html), pose markers, or NLA track strips, allowing direct use of the [NLA](https://docs.blender.org/manual/en/latest/editors/nla/index.html) when creating sequences.
 * Manual re-ordering of material slots when exporting multiple mesh objects.
 
 # Installation
-1. Download the zip file for the latest version from the [releases](https://github.com/DarklightGames/io_export_psk_psa/releases) page.
-2. Open Blender 4.0.0 or later.
+For Blender 4.2 and higher, it is recommended to download the latest version from the [Blender Extensions](https://extensions.blender.org/add-ons/io-scene-psk-psa/) platform.
+
+For Blender 4.1 and lower, you can install the addon manually by following these steps:
+
+1. Download the .zip file of the latest compatible version for your Blender version (see [Legacy Compatibility](#legacy-compatibility)).
+2. Open Blender.
 3. Navigate to the Blender Preferences (`Edit` > `Preferences`).
 4. Select the `Add-ons` tab.
 5. Click the `Install...` button.
 6. Select the .zip file that you downloaded earlier and click `Install Add-on`.
 7. Enable the newly added `Import-Export: PSK/PSA Importer/Exporter` addon.
 
+# Legacy Compatibility
+
+Below is a table of the latest addon versions that are compatible with older versions of Blender. These versions are no longer maintained and may contain bugs that have been fixed in newer versions. It is recommended to use the latest version of the addon for the best experience.
+
+Critical bug fixes may be issued for legacy addon versions that are under [Blender's LTS maintenance period](https://www.blender.org/download/lts/). Once the LTS period has ended, legacy addon versions will no longer be supported by the maintainers of this repository, although the releases will still be available for download.
+
+| Blender Version| Addon Version                                                                  | Long Term Support |
+|-|--------------------------------------------------------------------------------|-----------------|
+| [4.1](https://www.blender.org/download/releases/4-1/)        | [7.0.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/7.0.0) | No              |
+| [4.0](https://www.blender.org/download/releases/4-0/)        | [6.2.1](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/6.2.1) | No              |
+| [3.4 - 3.6](https://www.blender.org/download/lts/3-6/)       | [5.0.6](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/5.0.6) | June 2025       |
+| [2.93 - 3.3](https://www.blender.org/download/releases/3-3/) | [4.3.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/4.3.0) | September 2024  |
+
 # Usage
 ## Exporting a PSK
 1. Select the mesh objects you wish to export.
@@ -56,19 +66,6 @@ Bug fixes will be issued for legacy addon versions that are under [Blender's LTS
 
 > Note that in order to see the imported actions applied to your armature, you must use the [Dope Sheet](https://docs.blender.org/manual/en/latest/editors/dope_sheet/introduction.html) or [Nonlinear Animation](https://docs.blender.org/manual/en/latest/editors/nla/introduction.html) editors.
 
-## Localization
-
-The following languages are currently supported:
-
-| Language       | Status | Method |
-|----------------|--------|--------|
-| English        | ✅️     | 🧑     |
-| Japanese (日本語) | ✅️     | 🤖     | 
-
-If you notice any issues with the translations, please feel free to submit a correction on [Weblate](https://weblate.darklightgames.com/projects/io_scene_psk_psa/).
-
-If you would like to see support add for your own native language, please [open an issue](http://github.com/DarklightGames/io_scene_psk_psa/issues) and we will consider adding it.
-
 # FAQ
 
 ## Why can't I see the animations imported from my PSA?
@@ -80,3 +77,5 @@ The PSA importer creates [Actions](https://docs.blender.org/manual/en/latest/ani
 If preserving the mesh normals of models is important for your workflow, it is *not recommended* to export PSK files from UE Viewer. This is because UE Viewer makes no attempt to reconstruct the original [smoothing groups](https://en.wikipedia.org/wiki/Smoothing_group). As a result, the normals of imported PSK files will be incorrect when imported into Blender and will need to be manually fixed.
 
 As a workaround, it is recommended to export [glTF](https://en.wikipedia.org/wiki/GlTF) meshes out of UE Viewer instead, since the glTF format has support for explicit normals and UE Viewer can correctly preserve the mesh normals on export. Note, however, that the imported glTF armature may have it's bones oriented incorrectly when imported into Blender. To mitigate this, you can combine the armature of PSK and the mesh of the glTF for best results.
+
+There is also an open pull request to add support for exporting explicit normals from UE Viewer in the future: https://github.com/gildor2/UEViewer/pull/277.

build.py

@@ -1,41 +0,0 @@
-import os
-import subprocess
-from fnmatch import fnmatch
-from zipfile import ZipFile, ZIP_DEFLATED
-
-ignore_patterns = [
-    '*/__pycache__/*',
-    '*/.git/*',
-    '*/.github/*',
-    '*/.idea/*',
-    '*/venv/*',
-    '*/.gitignore',
-    '*/.gitattributes',
-    '*/build/*',
-    '*/build.py',
-]
-
-
-def zipdir(path, zip_file: ZipFile):
-    for root, dirs, files in os.walk(path):
-        for file in files:
-            if file != zip_file.filename and not any(fnmatch(os.path.join(root, file), pattern) for pattern in ignore_patterns):
-                zip_file.write(os.path.join(root, file))
-
-# Get the branch name.
-branch = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).decode('utf-8').strip()
-
-# Get the most recent tag.
-tag = subprocess.check_output(['git', 'describe', '--tags', '--abbrev=0']).decode('utf-8').strip()
-
-# Create a zip file of the current directory.
-
-zip_path = f'./build/io_scene_psk_psa-{branch}-{tag}.zip'
-
-# Check that the directory exists, if it doesn't, create it.
-if not os.path.exists('./build'):
-    os.makedirs('./build')
-
-zipf = ZipFile(zip_path, 'w', ZIP_DEFLATED)
-zipdir('.', zipf)
-zipf.close()

io_scene_psk_psa/__init__.py

@@ -1,24 +1,13 @@
 from bpy.app.handlers import persistent
 
-bl_info = {
-    'name': 'PSK/PSA Importer/Exporter',
-    'author': 'Colin Basnett, Yurii Ti',
-    'version': (6, 2, 0),
-    'blender': (4, 0, 0),
-    'description': 'PSK/PSA Import/Export (.psk/.psa)',
-    'warning': '',
-    'doc_url': 'https://github.com/DarklightGames/io_scene_psk_psa',
-    'tracker_url': 'https://github.com/DarklightGames/io_scene_psk_psa/issues',
-    'category': 'Import-Export'
-}
-
 if 'bpy' in locals():
     import importlib
 
-    importlib.reload(psx_data)
-    importlib.reload(psx_helpers)
-    importlib.reload(psx_types)
-    importlib.reload(psx_i18n)
+    importlib.reload(shared_data)
+    importlib.reload(shared_helpers)
+    importlib.reload(shared_types)
+    importlib.reload(shared_dfs)
+    importlib.reload(shared_ui)
 
     importlib.reload(psk_data)
     importlib.reload(psk_reader)
@@ -45,40 +34,31 @@ if 'bpy' in locals():
     importlib.reload(psa_import_operators)
     importlib.reload(psa_import_ui)
 else:
-    # if i remove this line, it can be enabled just fine
-    from . import data as psx_data
-    from . import helpers as psx_helpers
-    from . import types as psx_types
-    from . import i18n as psx_i18n
-    from .psk import data as psk_data
-    from .psk import reader as psk_reader
-    from .psk import writer as psk_writer
-    from .psk import builder as psk_builder
-    from .psk import importer as psk_importer
-    from .psk import properties as psk_properties
-    from .psk import ui as psk_ui
-    from .psk.export import properties as psk_export_properties
-    from .psk.export import operators as psk_export_operators
-    from .psk.export import ui as psk_export_ui
+    from .shared import data as shared_data, types as shared_types, helpers as shared_helpers
+    from .shared import dfs as shared_dfs, ui as shared_ui
+    from .psk import data as psk_data, builder as psk_builder, writer as psk_writer, \
+    importer as psk_importer, properties as psk_properties
+    from .psk import reader as psk_reader, ui as psk_ui
+    from .psk.export import properties as psk_export_properties, ui as psk_export_ui, \
+        operators as psk_export_operators
     from .psk.import_ import operators as psk_import_operators
 
-    from .psa import data as psa_data
-    from .psa import config as psa_config
-    from .psa import reader as psa_reader
-    from .psa import writer as psa_writer
-    from .psa import builder as psa_builder
-    from .psa import importer as psa_importer
-    from .psa.export import properties as psa_export_properties
-    from .psa.export import operators as psa_export_operators
-    from .psa.export import ui as psa_export_ui
-    from .psa.import_ import properties as psa_import_properties
+    from .psa import config as psa_config, data as psa_data, writer as psa_writer, reader as psa_reader, \
+        builder as psa_builder, importer as psa_importer
+    from .psa.export import properties as psa_export_properties, ui as psa_export_ui, \
+        operators as psa_export_operators
     from .psa.import_ import operators as psa_import_operators
-    from .psa.import_ import ui as psa_import_ui
+    from .psa.import_ import ui as psa_import_ui, properties as psa_import_properties
 
 import bpy
 from bpy.props import PointerProperty
 
-classes = psx_types.classes +\
+# TODO: just here so that it's not unreferenced and removed on save.
+if [shared_data, shared_helpers, psk_data, psk_reader, psk_writer, psk_builder, psk_importer, psa_data, psa_config,
+    psa_reader, psa_writer, psa_builder, psa_importer]:
+    pass
+
+classes = shared_types.classes +\
           psk_properties.classes +\
           psk_ui.classes +\
           psk_import_operators.classes +\
@@ -112,7 +92,6 @@ def psa_import_menu_func(self, context):
 def register():
     for cls in classes:
         bpy.utils.register_class(cls)
-
     bpy.types.TOPBAR_MT_file_export.append(psk_export_menu_func)
     bpy.types.TOPBAR_MT_file_import.append(psk_import_menu_func)
     bpy.types.TOPBAR_MT_file_export.append(psa_export_menu_func)
@@ -121,13 +100,10 @@ def register():
     bpy.types.Scene.psa_import = PointerProperty(type=psa_import_properties.PSA_PG_import)
     bpy.types.Scene.psa_export = PointerProperty(type=psa_export_properties.PSA_PG_export)
     bpy.types.Scene.psk_export = PointerProperty(type=psk_export_properties.PSK_PG_export)
-    bpy.types.Action.psa_export = PointerProperty(type=psx_types.PSX_PG_action_export)
-
-    bpy.app.translations.register(__name__, psx_i18n.langs)
+    bpy.types.Action.psa_export = PointerProperty(type=shared_types.PSX_PG_action_export)
 
 
 def unregister():
-    bpy.app.translations.unregister(__name__)
     del bpy.types.Material.psk
     del bpy.types.Scene.psa_import
     del bpy.types.Scene.psa_export

io_scene_psk_psa/blender_manifest.toml

@@ -0,0 +1,27 @@
+schema_version = "1.0.0"
+id = "io_scene_psk_psa"
+version = "7.1.3"
+name = "Unreal PSK/PSA (.psk/.psa)"
+tagline = "Import and export PSK and PSA files used in Unreal Engine"
+maintainer = "Colin Basnett <cmbasnett@gmail.com>"
+type = "add-on"
+website = "https://github.com/DarklightGames/io_scene_psk_psa/"
+tags = ["Game Engine", "Import-Export"]
+blender_version_min = "4.2.0"
+# Optional: maximum supported Blender version
+# blender_version_max = "5.1.0"
+license = [
+  "SPDX:GPL-3.0-or-later",
+]
+
+[build]
+paths_exclude_pattern = [
+  "/.git/",
+  "__pycache__/",
+  "/venv/",
+  "/.github/",
+  ".gitignore",
+]
+
+[permissions]
+files = "Import/export PSK and PSA files from/to disk"

io_scene_psk_psa/i18n.py

@@ -1,216 +0,0 @@
-langs = {'ja': {('*', 'Action Metadata'): 'アクションメタデータ',
-        ('*', 'Additional data will be written to the properties of the Action (e.g., frame rate)'): 'アクションのプロパティに追加データが書き込まれます '
-                                                                                                     '(フレームレートなど)',
-        ('*', 'All bones will be exported'): 'すべてのボーンがエクスポートされます',
-        ('*', 'All selected meshes must have the same armature modifier, encountered {count} ({names})'): '選択したすべてのメッシュには同じアーマチュア修飾子が必要です。検出されたアーマチュア修飾子は '
-                                                                                                          '{count} '
-                                                                                                          '({names})',
-        ('*', 'An armature must be selected'): 'アーマチュアを選択する必要があります',
-        ('*', 'An armature object must be supplied'): 'アーマチュアオブジェクトを指定する必要があります',
-        ('*', 'Assign each imported action a fake user so that the data block is always saved'): 'インポートされた各アクションにフェイクユーザーを割り当てて、データブロックが常に保存されるようにします',
-        ('*', 'At least one bone must be marked for export'): '少なくとも 1 '
-                                                              'つのボーンをエクスポート対象としてマークする必要があります',
-        ('*', 'At least one mesh must be selected'): '少なくとも 1 '
-                                                     'つのメッシュを選択する必要があります',
-        ('*', 'Bone Collections'): 'ボーンコレクション',
-        ('*', 'Bone Filter'): 'ボーンフィルター',
-        ('*', 'Bone Length'): 'ボーンの長さ',
-        ('*', 'Bone Name Mapping'): 'ボーン名マッピング',
-        ('*', 'Bone name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage'): 'ボーン名「{name}」には、Windows-1252 '
-                                                                                                             'コードページではエンコードできない文字が含まれています',
-        ('*', 'Bone names must match exactly'): 'ボーン名は正確に一致する必要があります',
-        ('*', 'Bone names restrictions will be enforced. Note that bone names without properly formatted names may not be able to be referenced by some versions of the Unreal Engine'): 'ボーン名の制限が適用されます。ボーン名が正しくフォーマットされていないと、Unreal '
-                                                                                                                                                                                         'Engine '
-                                                                                                                                                                                         'のバージョンによっては参照できない場合があることに注意してください',
-        ('*', 'Bones'): 'ボーンズ',
-        ('*', "Bones names must match, ignoring case (e.g., the PSA bone 'aBcDeF' can be mapped to the armature bone 'ABCDEF')"): 'ボーンの名前は大文字と小文字を区別しないで一致する必要があります '
-                                                                                                                                  '(例:PSAボーン '
-                                                                                                                                  "'abcDef' "
-                                                                                                                                  'はアーマチュアボーン '
-                                                                                                                                  "'ABCDEF' "
-                                                                                                                                  'にマッピングできます)',
-        ('*', 'Case Insensitive'): '大文字と小文字を区別しない',
-        ('*', 'Compression Ratio'): '圧縮率',
-        ('*', 'Context'): 'コンテキスト',
-        ('*', 'Convert keyframes to read-only samples. Recommended if you do not plan on editing the actions directly'): 'キーフレームを読み取り専用サンプルに変換します。アクションを直接編集する予定がない場合におすすめです',
-        ('*', 'Convert to Samples'): 'サンプルに変換',
-        ('*', 'Custom FPS'): 'カスタムFPS',
-        ('*', 'Deselect All'): 'すべて選択解除',
-        ('*', 'Deselect all bone collections'): 'すべてのボーンコレクションを選択解除',
-        ('*', 'Deselect all visible sequences'): '表示されているシーケンスをすべて選択解除',
-        ('*', 'Discarded {count} invalid face(s)'): '{count}個の無効なフェースが廃棄されました',
-        ('*', 'Duplicate action: {action_name}'): 'アクションが重複しています:{action_name}',
-        ('*', 'Each sequence name should be on a new line'): '各シーケンス名は新しい行にする必要があります',
-        ('*', 'Enforce Bone Name Restrictions'): 'ボーン名制限を強制',
-        ('*', 'Enforce that bone names must only contain letters, numbers, spaces, hyphens and underscores.\n\nDepending on the engine, improper bone names might not be referenced correctly by scripts'): 'ボーン名には文字、数字、スペース、ハイフン、アンダースコアのみを含めるようにしてください。\n'
-                                                                                                                                                                                                            '\n'
-                                                                                                                                                                                                            'エンジンによっては、不適切なボーン名がスクリプトで正しく参照されない場合があります',
-        ('*', 'Exact'): '正確',
-        ('*', 'Export'): 'エクスポート',
-        ('*', 'Export actions to PSA'): 'アクションをPSAにエクスポート',
-        ('*', 'Export mesh and armature to PSK'): 'メッシュとアーマチュアを PSK にエクスポート',
-        ('*', 'Exported bone hierarchy must have a single root bone.\nThe bone hierarchy marked for export has {root_bone_count} root bones: {root_bone_names}.\nAdditional debugging information has been written to the console.'): 'エクスポートされたボーン階層にはルートボーンが '
-                                                                                                                                                                                                                                      '1 '
-                                                                                                                                                                                                                                      'つ必要です。\n'
-                                                                                                                                                                                                                                      'エクスポート対象としてマークされたボーン階層には '
-                                                                                                                                                                                                                                      '{root_bone_count} '
-                                                                                                                                                                                                                                      '個のルートボーン '
-                                                                                                                                                                                                                                      '({root_bone_names}) '
-                                                                                                                                                                                                                                      'があります。\n'
-                                                                                                                                                                                                                                      '追加のデバッグ情報がコンソールに書き込まれました。',
-        ('*', 'Extra UVs'): '追加のUV',
-        ('*', 'FPS Source'): 'FPSソース',
-        ('*', 'Failed to read PSA config file: {error}'): 'PSA構成ファイルを読み込めませんでした:{error}',
-        ('*', 'Fake User'): 'フェイクユーザー',
-        ('*', 'File Path'): 'ファイルパス',
-        ('*', 'File path used for exporting the PSA file'): 'PSAファイルのエクスポートに使用するファイルパス',
-        ('*', 'File path used for exporting the PSK file'): 'PSKファイルのエクスポートに使用するファイルパス',
-        ('*', 'File path used for importing the PSA file'): 'PSAファイルのインポートに使用するファイルパス',
-        ('*', 'Filter by Name'): '名前で絞り込む',
-        ('*', 'Filter using regular expressions'): '正規表現を使用してフィルタリングする',
-        ('*', 'Flags'): '国旗',
-        ('*', "If an action with a matching name already exists, the existing action will have it's data overwritten instead of a new action being created"): '一致する名前のアクションが既に存在する場合、新しいアクションが作成されるのではなく、既存のアクションのデータが上書きされます',
-        ('*', 'Import'): 'インポート',
-        ('*', 'Import Extra UVs'): '追加のUVをインポート',
-        ('*', 'Import Shape Keys'): 'シェイプキーをインポート',
-        ('*', 'Import Vertex Colors'): '頂点カラーをインポート',
-        ('*', 'Import Vertex Normals'): '頂点法線をインポート',
-        ('*', 'Import extra UVs, if available'): '追加の UV (可能な場合) をインポートする',
-        ('*', 'Import shape keys, if available'): 'シェイプキーをインポートする (可能な場合)',
-        ('*', 'Import the selected animations into the scene as actions'): '選択したアニメーションをアクションとしてシーンにインポートします',
-        ('*', 'Import vertex colors, if available'): '頂点カラーをインポート (可能な場合)',
-        ('*', 'Import vertex normals, if available'): '頂点法線 (可能な場合) をインポートする',
-        ('*', 'Imported {action_count} action(s)'): 'インポートされた{action_count}アクション',
-        ('*', 'Imported {action_count} action(s) with {warning_count} warning(s)'): '{action_count}個のアクションが{warning_count}個の警告付きでインポートされました',
-        ('*', 'Invalid FPS source: {fps_source}'): 'FPSソースが無効です:{fps_source}',
-        ('*', 'Invert filtering (show hidden items, and vice versa)'): '反転フィルタリング '
-                                                                       '(隠しアイテムを表示、その逆)',
-        ('*', 'Keyframe Quota'): 'キーフレームクォータ',
-        ('*', 'Load a PSK file'): 'PSKファイルを読み込む',
-        ('*', 'Material name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage'): 'マテリアル名「{name}」には、Windows-1252 '
-                                                                                                                 'コードページではエンコードできない文字が含まれています',
-        ('*', 'Material slot cannot be empty (index {index})'): 'マテリアルスロットを空にすることはできません '
-                                                                '(インデックス{index})',
-        ('*', 'Materials'): 'マテリアル',
-        ('*', 'Mesh "{object_name}" must have at least one material'): 'メッシュ「{object_name}」には少なくとも1つのマテリアルが必要です',
-        ('*', 'Mesh "{object_name}" must have only one armature modifier'): 'メッシュ「{object_name}」にはアーマチュアモディファイヤが '
-                                                                            '1 '
-                                                                            'つだけ必要です',
-        ('*', 'Metadata'): 'メタデータ',
-        ('*', 'Modulate'): '変調する',
-        ('*', 'Move the selected material down one slot'): '選択したマテリアルを1スロット下に移動',
-        ('*', 'Move the selected material up one slot'): '選択したマテリアルを1つ上のスロットに移動',
-        ('*', 'NLA Track'): 'NLAトラック',
-        ('*', 'NLA Track Index'): 'NLAトラックインデックス',
-        ('*', 'NLA Track Strips'): 'NLAトラックストリップ',
-        ('*', 'No NLA track strips were selected for export'): 'エクスポート対象のNLAトラックストリップが選択されていません',
-        ('*', 'No Smooth'): 'スムーズなし',
-        ('*', 'No actions were selected for export'): 'エクスポートするアクションが選択されていません',
-        ('*', 'No animation data for object "{name}"'): 'オブジェクト「{name}」のアニメーションデータはありません',
-        ('*', 'No bones available for export'): 'エクスポートできるボーンはありません',
-        ('*', 'No modifiers will be evaluated as part of the exported mesh'): 'エクスポートされたメッシュの一部として評価されるモディファイヤはありません',
-        ('*', 'No sequences selected'): 'シーケンスが選択されていません',
-        ('*', 'No text block selected'): 'テキストブロックが選択されていません',
-        ('*', 'No timeline markers were selected for export'): 'エクスポートするタイムラインマーカーが選択されていません',
-        ('*', 'Normal Two-Sided'): 'ノーマル両面',
-        ('*', 'Nothing to import'): 'インポートするものはありません',
-        ('*', 'Number of bones ({bone_count}) exceeds limit of {MAX_BONE_COUNT}'): 'ボーンの数({bone_count})が{MAX_BONE_COUNT}の制限を超えています',
-        ('*', 'Number of materials ({material_count}) exceeds limit of {MAX_MATERIAL_COUNT}'): 'マテリアルの数({material_count})が{MAX_MATERIAL_COUNT}の制限を超えています',
-        ('*', 'Number of wedges ({wedge_count}) exceeds limit of {MAX_WEDGE_COUNT}'): 'ウェッジの数({wedge_count})が{MAX_WEDGE_COUNT}の制限を超えています',
-        ('*', 'Numbers of vertices ({point_count}) exceeds limit of {MAX_POINT_COUNT}'): '頂点の数({point_count})が{MAX_POINT_COUNT}の制限を超えています',
-        ('*', 'Only Show Selected'): '選択したものだけを表示',
-        ('*', 'Only bones belonging to the selected bone collections and their ancestors will be exported'): '選択したボーンコレクションに属するボーンとその祖先だけがエクスポートされます',
-        ('*', "Only show items matching this name (use '*' as wildcard)"): 'この名前に一致するアイテムのみを表示 '
-                                                                           '(ワイルドカードとして「*」を使用)',
-        ('*', 'Only show selected sequences'): '選択したシーケンスのみを表示',
-        ('*', 'Override Animation Data'): 'アニメーションデータをオーバーライドする',
-        ('*', 'PSA Export'): 'PSAエクスポート',
-        ('*', 'PSA bone {bone_index} ({bone_name}) could not be mapped to armature bone {armature_bone_index} ({armature_bone_name}) because the armature bone is already mapped to PSA bone {mapped_psa_bone_index} ({mapped_psa_bone_name})'): 'アーマチュアボーンは既に '
-                                                                                                                                                                                                                                                 'PSA '
-                                                                                                                                                                                                                                                 'ボーン{mapped_psa_bone_index}({mapped_psa_bone_name})にマップされているため、PSA '
-                                                                                                                                                                                                                                                 'ボーン{bone_index}({bone_name})をアーマチュアボーン{armature_bone_index}({mapped_psa_bone_name})にマッピングできませんでした',
-        ('*', 'PSA export successful'): 'PSAのエクスポートが成功しました',
-        ('*', 'PSK Material'): 'PSKマテリアル',
-        ('*', 'PSK export successful'): 'PSKのエクスポートが成功しました',
-        ('*', 'PSK export successful with {warning_count} warnings'): 'PSKエクスポートは成功しましたが、警告が{warning_count}件ありました',
-        ('*', 'PSK imported ({name})'): 'PSKがインポートされました ({name})',
-        ('*', 'PSK imported with {count} warning(s)'): 'PSKをインポートすると{count}つの警告が発生しました',
-        ('*', 'PSK/PSA Import/Export (.psk/.psa)'): 'PSK/PSA インポート/エクスポート '
-                                                    '(.psk/.psa)',
-        ('*', 'PSK/PSA Importer/Exporter'): 'PSK/PSA インポーター/エクスポーター',
-        ('*', 'Prefix Action Name'): 'プレフィックスアクション名',
-        ('*', 'Raw Mesh Data'): '未加工メッシュデータ',
-        ('*', 'Regular Expression'): '正規表現',
-        ('*', 'RemoveTracks'): 'RemoveTracks',
-        ('*', 'Reversed'): '逆転しました',
-        ('*', 'Root Motion'): 'ルートモーション',
-        ('*', 'Root bone "{root_bone_name}" was included because {bone_name} was marked for export'): 'ルートボーン「{root_bone_name}」が含まれたのは、「{bone_name}」がエクスポート対象としてマークされているためです',
-        ('*', 'Select All'): 'すべて選択',
-        ('*', 'Select By Text List'): 'テキストリストで選択',
-        ('*', 'Select a PSA file'): 'PSAファイルを選択',
-        ('*', 'Select all bone collections'): 'すべてのボーンコレクションを選択',
-        ('*', 'Select all visible sequences'): '表示されているシーケンスをすべて選択',
-        ('*', 'Select sequences by name from text list'): 'テキストリストから名前でシーケンスを選択',
-        ('*', 'Selected object "{object_name}" is not a mesh'): '選択したオブジェクト「{object_name}」はメッシュではありません',
-        ('*', 'Selected object must be an Armature'): '選択したオブジェクトはアーマチュアでなければなりません',
-        ('*', 'Selected {count} sequence(s)'): '選択した{count}シーケンス',
-        ('*', 'Sequence'): 'シーケンス',
-        ('*', 'Sequence name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage'): 'シーケンス名「{name}」には、Windows-1252 '
-                                                                                                                 'コードページではエンコードできない文字が含まれています',
-        ('*', 'Sequences'): 'シーケンス',
-        ('*', 'Sequences are delineated by scene timeline markers'): 'シーケンスはシーンのタイムラインマーカーによって描かれます',
-        ('*', 'Sequences are delineated by the start & end times of strips on the selected NLA track'): 'シーケンスは、選択した '
-                                                                                                        'NLA '
-                                                                                                        'トラックのストリップの開始時間と終了時間によって示されます',
-        ('*', 'Sequences will be exported using actions'): 'シーケンスはアクションを使用してエクスポートされます',
-        ('*', 'Shape Keys'): 'シェイプキー',
-        ('*', 'Show actions that belong to an asset library'): 'アセットライブラリに属するアクションを表示',
-        ('*', 'Show reversed sequences'): '逆のシーケンスを表示',
-        ('*', 'Source'): 'ソース',
-        ('*', 'Stash'): '保留',
-        ('*', 'Stash each imported action as a strip on a new non-contributing NLA track'): 'インポートした各アクションを、コントリビューションされていない新しい '
-                                                                                            'NLA '
-                                                                                            'トラックにストリップとして保存する',
-        ('*', 'The active object must be an armature'): 'アクティブオブジェクトはアーマチュアでなければなりません',
-        ('*', "The armature '{armature_name}' is missing {count} bones that exist in the PSA:\n{missing_bone_names}"): 'アーマチュア「{armature_name}」にはPSAに存在する{count}個のボーンがありません:\n'
-                                                                                                                       '{missing_bone_names}',
-        ('*', 'The following bone names are invalid: {invalid_bone_names}.\nBone names must only contain letters, numbers, spaces, hyphens and underscores.\nYou can bypass this by disabling "Enforce Bone Name Restrictions" in the export settings.'): '次のボーン名は無効です:{invalid_bone_names}\n'
-                                                                                                                                                                                                                                                          'ボーン名に使用できるのは、文字、数字、スペース、ハイフン、アンダースコアのみです。\n'
-                                                                                                                                                                                                                                                          'エクスポート設定で「ボーン名制限を強制」を無効にすることで、これを回避できます',
-        ('*', 'The frame rate of the exported sequence'): 'エクスポートされたシーケンスのフレームレート',
-        ('*', 'The frame rate to which the imported sequences will be resampled to'): 'インポートしたシーケンスをリサンプリングするときのフレームレート',
-        ('*', "The frame rate will be determined by action's FPS property found in the PSA Export panel.\n\nIf the Sequence Source is Timeline Markers, the lowest value of all contributing actions will be used"): 'フレームレートは、PSAエクスポートのパネルにあるアクションのFPSプロパティによって決まります。\n'
-                                                                                                                                                                                                                     '\n'
-                                                                                                                                                                                                                     'シーケンスソースがタイムラインマーカーの場合、関連するすべてのアクションのうち最も低い値が使用されます',
-        ('*', 'The keyframe sampling ratio of the exported sequence.\n\nA compression ratio of 1.0 will export all frames, while a compression ratio of 0.5 will export half of the frames'): 'エクスポートされたシーケンスのキーフレームサンプリング比。\n'
-                                                                                                                                                                                              '\n'
-                                                                                                                                                                                              '圧縮率が1.0の場合はすべてのフレームがエクスポートされ、圧縮率が0.5の場合はフレームの半分がエクスポートされます',
-        ('*', 'The method by which bones from the PSA file are mapped to the bones of the armature'): 'PSAファイルのボーンをアーマチュアのボーンにマッピングする方法',
-        ('*', 'The minimum number of keyframes to be exported'): 'エクスポートするキーフレームの最小数',
-        ('*', 'The selected object must be an armature'): '選択したオブジェクトはアーマチュアでなければなりません',
-        ('*', 'The sequence frame rate matches the original frame rate'): 'シーケンスのフレームレートは元のフレームレートと一致します',
-        ('*', 'The sequence is resampled to a custom frame rate'): 'シーケンスはカスタムフレームレートにリサンプリングされます',
-        ('*', 'The sequence is resampled to the frame rate of the scene'): 'シーケンスはシーンのフレームレートに合わせてリサンプリングされます',
-        ('*', 'The source vertex color space'): 'ソース頂点カラースペース',
-        ('*', 'Translucent'): '半透明',
-        ('*', 'Triangle Bit Flags'): 'トライアングルビットフラグ',
-        ('*', 'Triangle Type'): 'トライアングルタイプ',
-        ('*', 'Unhandled section "{section_name}" at position {position}'): '{position}の位置にある未処理のセクション「{section_name}」',
-        ('*', 'Unhandled sequence source: {sequence_source}'): '未処理のシーケンスソース:{sequence_source}',
-        ('*', 'Unlit'): '明かりなし',
-        ('*', 'Unreal PSA (.psa)'): 'アンリアルPSA (.psa)',
-        ('*', 'Unreal PSK (.psk)'): 'アンリアルPSK (.psk)',
-        ('*', 'Unreal PSK (.psk/.pskx)'): 'アンリアルPSK (.psk/.pskx)',
-        ('*', 'Unrecognized wedge format'): '認識されないウェッジフォーマット',
-        ('*', 'Use Config File'): '設定ファイルを使用',
-        ('*', 'Use the .config file that is sometimes generated when the PSA file is exported from UEViewer. This file contains options that can be used to filter out certain bones tracks from the imported actions'): 'PSA '
-                                                                                                                                                                                                                         'ファイルをUEViewerからエクスポートしたときに生成されることがある.configファイルを使用してください。このファイルには、インポートしたアクションから特定のボーントラックを除外するためのオプションが含まれています',
-        ('*', 'Use the animation data from a different object instead of the selected object'): '選択したオブジェクトの代わりに別のオブジェクトのアニメーションデータを使用する',
-        ('*', 'Vertex Color Space'): '頂点カラースペース',
-        ('*', 'Vertex Colors'): '頂点カラー',
-        ('*', 'Vertex Normals'): '頂点法線',
-        ('*', 'When enabled, the root bone will be transformed as it appears in the scene.\n\nYou might want to disable this if you are exporting an animation for an armature that is attached to another object, such as a weapon or a shield'): '有効にすると、ルートボーンはシーンに表示されているとおりにトランスフォームされます。\n'
-                                                                                                                                                                                                                                                   '\n'
-                                                                                                                                                                                                                                                   '武器や盾など、別のオブジェクトにアタッチされているアーマチュアのアニメーションをエクスポートする場合は、これを無効にすると良いかもしれません',
-        ('*', 'Write'): '書き込み',
-        ('*', 'sRGBA'): 'sRGBA'}}

io_scene_psk_psa/psa/builder.py

@@ -1,10 +1,9 @@
 from typing import Optional
 
-import bpy.app.translations
-from bpy.types import Armature, Bone, Action, PoseBone
+from bpy.types import Bone, Action, PoseBone
 
 from .data import *
-from ..helpers import *
+from ..shared.helpers import *
 
 
 class PsaBuildSequence:
@@ -14,7 +13,9 @@ class PsaBuildSequence:
             self.frame_start: int = 0
             self.frame_end: int = 0
 
-    def __init__(self):
+    def __init__(self, armature_object: Object, anim_data: AnimData):
+        self.armature_object = armature_object
+        self.anim_data = anim_data
         self.name: str = ''
         self.nla_state: PsaBuildSequence.NlaState = PsaBuildSequence.NlaState()
         self.compression_ratio: float = 1.0
@@ -28,10 +29,10 @@ class PsaBuildOptions:
         self.sequences: List[PsaBuildSequence] = []
         self.bone_filter_mode: str = 'ALL'
         self.bone_collection_indices: List[int] = []
-        self.should_enforce_bone_name_restrictions: bool = False
         self.sequence_name_prefix: str = ''
         self.sequence_name_suffix: str = ''
         self.root_motion: bool = False
+        self.scale = 1.0
 
 
 def _get_pose_bone_location_and_rotation(pose_bone: PoseBone, armature_object: Object, options: PsaBuildOptions):
@@ -50,6 +51,8 @@ def _get_pose_bone_location_and_rotation(pose_bone: PoseBone, armature_object: O
     location = pose_bone_matrix.to_translation()
     rotation = pose_bone_matrix.to_quaternion().normalized()
 
+    location *= options.scale
+
     if pose_bone.parent is not None:
         rotation.conjugate()
 
@@ -69,9 +72,6 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
     # As a result, we need to reconstruct the list of pose bones in the same order as the
     # armature bones.
     bone_names = [x.name for x in bones]
-    pose_bones = [(bone_names.index(bone.name), bone) for bone in armature_object.pose.bones]
-    pose_bones.sort(key=lambda x: x[0])
-    pose_bones = [x[1] for x in pose_bones]
 
     # Get a list of all the bone indices and instigator bones for the bone filter settings.
     export_bone_names = get_export_bone_names(armature_object, options.bone_filter_mode, options.bone_collection_indices)
@@ -79,16 +79,11 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
 
     # Make the bone lists contain only the bones that are going to be exported.
     bones = [bones[bone_index] for bone_index in bone_indices]
-    pose_bones = [pose_bones[bone_index] for bone_index in bone_indices]
 
     # No bones are going to be exported.
     if len(bones) == 0:
         raise RuntimeError('No bones available for export')
 
-    # Check that all bone names are valid.
-    if options.should_enforce_bone_name_restrictions:
-        check_bone_names(map(lambda bone: bone.name, bones))
-        
     # Build list of PSA bones.
     for bone in bones:
         psa_bone = Psa.Bone()
@@ -96,8 +91,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
         try:
             psa_bone.name = bytes(bone.name, encoding='windows-1252')
         except UnicodeEncodeError:
-            message = bpy.app.translations.pgettext_iface('Bone name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage')
-            raise RuntimeError(message.format(name=bone.name))
+            raise RuntimeError(f'Bone name "{bone.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
 
         try:
             parent_index = bones.index(bone.parent)
@@ -147,8 +141,14 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
     context.window_manager.progress_begin(0, len(options.sequences))
 
     for export_sequence_index, export_sequence in enumerate(options.sequences):
+        # Look up the pose bones for the bones that are going to be exported.
+        pose_bones = [(bone_names.index(bone.name), bone) for bone in export_sequence.armature_object.pose.bones]
+        pose_bones.sort(key=lambda x: x[0])
+        pose_bones = [x[1] for x in pose_bones]
+        pose_bones = [pose_bones[bone_index] for bone_index in bone_indices]
+
         # Link the action to the animation data and update view layer.
-        options.animation_data.action = export_sequence.nla_state.action
+        export_sequence.anim_data.action = export_sequence.nla_state.action
         context.view_layer.update()
 
         frame_start = export_sequence.nla_state.frame_start
@@ -157,7 +157,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
         # Calculate the frame step based on the compression factor.
         frame_extents = abs(frame_end - frame_start)
         frame_count_raw = frame_extents + 1
-        frame_count = max(export_sequence.key_quota, int(frame_count_raw * export_sequence.compression_ratio))
+        frame_count = max(1, max(export_sequence.key_quota, int(frame_count_raw * export_sequence.compression_ratio)))
 
         try:
             frame_step = frame_extents / (frame_count - 1)
@@ -174,9 +174,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
         try:
             psa_sequence.name = bytes(export_sequence.name, encoding='windows-1252')
         except UnicodeEncodeError:
-            message = bpy.app.translations.pgettext_iface('Sequence name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage')
-            message = message.format(name=export_sequence.name)
-            raise RuntimeError(message)
+            raise RuntimeError(f'Sequence name "{export_sequence.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
         psa_sequence.frame_count = frame_count
         psa_sequence.frame_start_index = frame_start_index
         psa_sequence.fps = frame_count / sequence_duration
@@ -190,7 +188,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
             context.scene.frame_set(frame=int(frame), subframe=frame % 1.0)
 
             for pose_bone in pose_bones:
-                location, rotation = _get_pose_bone_location_and_rotation(pose_bone, armature_object, options)
+                location, rotation = _get_pose_bone_location_and_rotation(pose_bone, export_sequence.armature_object, options)
 
                 key = Psa.Key()
                 key.location.x = location.x

io_scene_psk_psa/psa/config.py

@@ -1,8 +1,6 @@
 import re
 from configparser import ConfigParser
-from typing import Dict
-
-from .reader import PsaReader
+from typing import Dict, List
 
 REMOVE_TRACK_LOCATION = (1 << 0)
 REMOVE_TRACK_ROTATION = (1 << 1)
@@ -28,7 +26,7 @@ def _load_config_file(file_path: str) -> ConfigParser:
     with open(file_path, 'r') as f:
         lines = f.read().split('\n')
 
-    lines = [re.sub(r'^\s*(\w+)\s*$', r'\1=', line) for line in lines]
+    lines = [re.sub(r'^\s*([^=]+)\s*$', r'\1=', line) for line in lines]
 
     contents = '\n'.join(lines)
 
@@ -50,7 +48,7 @@ def _get_bone_flags_from_value(value: str) -> int:
             return 0
 
 
-def read_psa_config(psa_reader: PsaReader, file_path: str) -> PsaConfig:
+def read_psa_config(psa_sequence_names: List[str], file_path: str) -> PsaConfig:
     psa_config = PsaConfig()
 
     config = _load_config_file(file_path)
@@ -62,7 +60,6 @@ def read_psa_config(psa_reader: PsaReader, file_path: str) -> PsaConfig:
 
             # Map the sequence name onto the actual sequence name in the PSA file.
             try:
-                psa_sequence_names = list(psa_reader.sequences.keys())
                 lowercase_sequence_names = [sequence_name.lower() for sequence_name in psa_sequence_names]
                 sequence_name = psa_sequence_names[lowercase_sequence_names.index(sequence_name.lower())]
             except ValueError:

io_scene_psk_psa/psa/data.py

@@ -2,7 +2,7 @@ import typing
 from collections import OrderedDict
 from typing import List
 
-from ..data import *
+from ..shared.data import *
 
 '''
 Note that keys are not stored within the Psa object.

io_scene_psk_psa/psa/export/operators.py

@@ -1,6 +1,6 @@
 import re
 from collections import Counter
-from typing import List, Iterable, Dict, Tuple
+from typing import List, Iterable, Dict, Tuple, cast, Optional
 
 import bpy
 from bpy.props import StringProperty
@@ -8,10 +8,26 @@ from bpy.types import Context, Armature, Action, Object, AnimData, TimelineMarke
 from bpy_extras.io_utils import ExportHelper
 from bpy_types import Operator
 
-from .properties import PSA_PG_export, PSA_PG_export_action_list_item, filter_sequences
+from .properties import PSA_PG_export, PSA_PG_export_action_list_item, filter_sequences, \
+    get_sequences_from_name_and_frame_range
 from ..builder import build_psa, PsaBuildSequence, PsaBuildOptions
 from ..writer import write_psa
-from ...helpers import populate_bone_collection_list, get_nla_strips_in_frame_range
+from ...shared.helpers import populate_bone_collection_list, get_nla_strips_in_frame_range
+from ...shared.ui import draw_bone_filter_mode
+
+
+def get_sequences_propnames_from_source(sequence_source: str) -> Optional[Tuple[str, str]]:
+    match sequence_source:
+        case 'ACTIONS':
+            return 'action_list', 'action_list_index'
+        case 'TIMELINE_MARKERS':
+            return 'marker_list', 'marker_list_index'
+        case 'NLA_TRACK_STRIPS':
+            return 'nla_strip_list', 'nla_strip_list_index'
+        case 'ACTIVE_ACTION':
+            return 'active_action_list', 'active_action_list_index'
+        case _:
+            raise ValueError(f'Unhandled sequence source: {sequence_source}')
 
 
 def is_action_for_armature(armature: Armature, action: Action):
@@ -28,12 +44,13 @@ def is_action_for_armature(armature: Armature, action: Action):
     return False
 
 
-def update_actions_and_timeline_markers(context: Context, armature: Armature):
+def update_actions_and_timeline_markers(context: Context):
     pg = getattr(context.scene, 'psa_export')
 
     # Clear actions and markers.
     pg.action_list.clear()
     pg.marker_list.clear()
+    pg.active_action_list.clear()
 
     # Get animation data.
     animation_data_object = get_animation_data_object(context)
@@ -42,9 +59,11 @@ def update_actions_and_timeline_markers(context: Context, armature: Armature):
     if animation_data is None:
         return
 
+    active_armature = cast(Armature, context.active_object.data)
+
     # Populate actions list.
     for action in bpy.data.actions:
-        if not is_action_for_armature(armature, action):
+        if not is_action_for_armature(active_armature, action):
             continue
 
         if action.name != '' and not action.name.startswith('#'):
@@ -62,7 +81,7 @@ def update_actions_and_timeline_markers(context: Context, armature: Armature):
         for pose_marker_index, pose_marker in enumerate(pose_markers):
             if pose_marker.name.strip() == '' or pose_marker.name.startswith('#'):
                 continue
-            for (name, frame_start, frame_end) in get_sequences_from_action_pose_marker(action, pose_markers, pose_marker, pose_marker_index):
+            for (name, frame_start, frame_end) in get_sequences_from_action_pose_markers(action, pose_markers, pose_marker, pose_marker_index):
                 item = pg.action_list.add()
                 item.action = action
                 item.name = name
@@ -89,6 +108,21 @@ def update_actions_and_timeline_markers(context: Context, armature: Armature):
             item.frame_start = frame_start
             item.frame_end = frame_end
 
+    # Populate the active action list.
+    for armature_object in context.selected_objects:
+        if armature_object.type != 'ARMATURE':
+            continue
+        action = armature_object.animation_data.action if armature_object.animation_data else None
+        if action is None:
+            continue
+        item = pg.active_action_list.add()
+        item.name = action.name
+        item.armature_object = armature_object
+        item.action = action
+        item.frame_start = int(item.action.frame_range[0])
+        item.frame_end = int(item.action.frame_range[1])
+        item.is_selected = True
+
 
 def get_sequence_fps(context: Context, fps_source: str, fps_custom: float, actions: Iterable[Action]) -> float:
     match fps_source:
@@ -100,9 +134,7 @@ def get_sequence_fps(context: Context, fps_source: str, fps_custom: float, actio
             # Get the minimum value of action metadata FPS values.
             return min([action.psa_export.fps for action in actions])
         case _:
-            message = bpy.app.translations.pgettext_iface('Invalid FPS source: {fps_source}')
-            message = message.format(fps_source=fps_source)
-            raise RuntimeError(message)
+            raise RuntimeError(f'Invalid FPS source "{fps_source}"')
 
 
 def get_animation_data_object(context: Context) -> Object:
@@ -121,19 +153,11 @@ def get_animation_data_object(context: Context) -> Object:
     return animation_data_object
 
 
-def is_bone_filter_mode_item_available(context, identifier):
-    if identifier == 'BONE_COLLECTIONS':
-        armature = context.active_object.data
-        if len(armature.collections) == 0:
-            return False
-    return True
-
-
 def get_timeline_marker_sequence_frame_ranges(animation_data: AnimData, context: Context, marker_names: List[str]) -> Dict:
     # Timeline markers need to be sorted so that we can determine the sequence start and end positions.
     sequence_frame_ranges = dict()
     sorted_timeline_markers = list(sorted(context.scene.timeline_markers, key=lambda x: x.frame))
-    sorted_timeline_marker_names = list(map(lambda x: x.name, sorted_timeline_markers))
+    sorted_timeline_marker_names = [x.name for x in sorted_timeline_markers]
 
     for marker_name in marker_names:
         marker = context.scene.timeline_markers[marker_name]
@@ -146,7 +170,7 @@ def get_timeline_marker_sequence_frame_ranges(animation_data: AnimData, context:
         if next_marker_index < len(sorted_timeline_markers):
             # There is a next marker. Use that next marker's frame position as the last frame of this sequence.
             frame_end = sorted_timeline_markers[next_marker_index].frame
-            nla_strips = get_nla_strips_in_frame_range(animation_data, marker.frame, frame_end)
+            nla_strips = list(get_nla_strips_in_frame_range(animation_data, marker.frame, frame_end))
             if len(nla_strips) > 0:
                 frame_end = min(frame_end, max(map(lambda nla_strip: nla_strip.frame_end, nla_strips)))
                 frame_start = max(frame_start, min(map(lambda nla_strip: nla_strip.frame_start, nla_strips)))
@@ -170,33 +194,24 @@ def get_timeline_marker_sequence_frame_ranges(animation_data: AnimData, context:
     return sequence_frame_ranges
 
 
-def get_sequences_from_name_and_frame_range(name: str, frame_start: int, frame_end: int) -> List[Tuple[str, int, int]]:
-    reversed_pattern = r'(.+)/(.+)'
-    reversed_match = re.match(reversed_pattern, name)
-    if reversed_match:
-        forward_name = reversed_match.group(1)
-        backwards_name = reversed_match.group(2)
-        return [
-            (forward_name, frame_start, frame_end),
-            (backwards_name, frame_end, frame_start)
-        ]
-    else:
-        return [(name, frame_start, frame_end)]
-
-
 def get_sequences_from_action(action: Action) -> List[Tuple[str, int, int]]:
     frame_start = int(action.frame_range[0])
     frame_end = int(action.frame_range[1])
     return get_sequences_from_name_and_frame_range(action.name, frame_start, frame_end)
 
 
-def get_sequences_from_action_pose_marker(action: Action, pose_markers: List[TimelineMarker], pose_marker: TimelineMarker, pose_marker_index: int) -> List[Tuple[str, int, int]]:
+def get_sequences_from_action_pose_markers(action: Action, pose_markers: List[TimelineMarker], pose_marker: TimelineMarker, pose_marker_index: int) -> List[Tuple[str, int, int]]:
     frame_start = pose_marker.frame
-    if pose_marker_index + 1 < len(pose_markers):
+    sequence_name = pose_marker.name
+    if pose_marker.name.startswith('!'):
+        # If the pose marker name starts with an exclamation mark, only export the first frame.
+        frame_end = frame_start
+        sequence_name = sequence_name[1:]
+    elif pose_marker_index + 1 < len(pose_markers):
         frame_end = pose_markers[pose_marker_index + 1].frame
     else:
         frame_end = int(action.frame_range[1])
-    return get_sequences_from_name_and_frame_range(pose_marker.name, frame_start, frame_end)
+    return get_sequences_from_name_and_frame_range(sequence_name, frame_start, frame_end)
 
 
 def get_visible_sequences(pg: PSA_PG_export, sequences) -> List[PSA_PG_export_action_list_item]:
@@ -211,7 +226,7 @@ class PSA_OT_export(Operator, ExportHelper):
     bl_idname = 'psa_export.operator'
     bl_label = 'Export'
     bl_options = {'INTERNAL', 'UNDO'}
-    __doc__ = 'Export actions to PSA'
+    bl_description = 'Export actions to PSA'
     filename_ext = '.psa'
     filter_glob: StringProperty(default='*.psa', options={'HIDDEN'})
     filepath: StringProperty(
@@ -220,7 +235,8 @@ class PSA_OT_export(Operator, ExportHelper):
         maxlen=1024,
         default='')
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
         self.armature_object = None
 
     @classmethod
@@ -236,28 +252,20 @@ class PSA_OT_export(Operator, ExportHelper):
         layout = self.layout
         pg = getattr(context.scene, 'psa_export')
 
-        sequences_header, sequences_panel = layout.panel('sequences_panel_id', default_closed=False)
+        sequences_header, sequences_panel = layout.panel('Sequences', default_closed=False)
         sequences_header.label(text='Sequences', icon='ACTION')
 
-        if sequences_panel is not None:
+        if sequences_panel:
             flow = sequences_panel.grid_flow()
             flow.use_property_split = True
             flow.use_property_decorate = False
-
-            # FPS
-            fps_row = flow.row(align=True)
-            fps_row.prop(pg, 'fps_source', text='FPS')
-            if pg.fps_source == 'CUSTOM':
-                fps_row.prop(pg, 'fps_custom', text='')
-
-            # SOURCE
             flow.prop(pg, 'sequence_source', text='Source')
 
             if pg.sequence_source in {'TIMELINE_MARKERS', 'NLA_TRACK_STRIPS'}:
                 # ANIMDATA SOURCE
                 flow.prop(pg, 'should_override_animation_data')
                 if pg.should_override_animation_data:
-                    flow.prop(pg, 'animation_data_override', text='')
+                    flow.prop(pg, 'animation_data_override', text=' ')
 
             if pg.sequence_source == 'NLA_TRACK_STRIPS':
                 flow = sequences_panel.grid_flow()
@@ -271,22 +279,17 @@ class PSA_OT_export(Operator, ExportHelper):
             row.operator(PSA_OT_export_actions_select_all.bl_idname, text='All', icon='CHECKBOX_HLT')
             row.operator(PSA_OT_export_actions_deselect_all.bl_idname, text='None', icon='CHECKBOX_DEHLT')
 
-            # ACTIONS
-            if pg.sequence_source == 'ACTIONS':
-                rows = max(3, min(len(pg.action_list), 10))
-                sequences_panel.template_list('PSA_UL_export_sequences', '', pg, 'action_list', pg, 'action_list_index', rows=rows)
-            elif pg.sequence_source == 'TIMELINE_MARKERS':
-                rows = max(3, min(len(pg.marker_list), 10))
-                sequences_panel.template_list('PSA_UL_export_sequences', '', pg, 'marker_list', pg, 'marker_list_index', rows=rows)
-            elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-                rows = max(3, min(len(pg.nla_strip_list), 10))
-                sequences_panel.template_list('PSA_UL_export_sequences', '', pg, 'nla_strip_list', pg, 'nla_strip_list_index', rows=rows)
+            from .ui import PSA_UL_export_sequences
 
-            col = sequences_panel.column()
-            col.use_property_split = True
-            col.use_property_decorate = False
-            col.prop(pg, 'sequence_name_prefix')
-            col.prop(pg, 'sequence_name_suffix')
+            propname, active_propname = get_sequences_propnames_from_source(pg.sequence_source)
+            sequences_panel.template_list(PSA_UL_export_sequences.bl_idname, '', pg, propname, pg, active_propname,
+                                          rows=max(3, min(len(getattr(pg, propname)), 10)))
+
+            flow = sequences_panel.grid_flow()
+            flow.use_property_split = True
+            flow.use_property_decorate = False
+            flow.prop(pg, 'sequence_name_prefix', text='Name Prefix')
+            flow.prop(pg, 'sequence_name_suffix')
 
             # Determine if there is going to be a naming conflict and display an error, if so.
             selected_items = [x for x in pg.action_list if x.is_selected]
@@ -294,18 +297,21 @@ class PSA_OT_export(Operator, ExportHelper):
             action_name_counts = Counter(action_names)
             for action_name, count in action_name_counts.items():
                 if count > 1:
-                    text = bpy.app.translations.pgettext_iface('Duplicate action: {action_name}')
-                    text = text.format(action_name=action_name)
-                    sequences_panel.label(text, icon='ERROR')
+                    layout.label(text=f'Duplicate action: {action_name}', icon='ERROR')
                     break
 
-        # BONES
-        bones_header, bones_panel = layout.panel('bones_panel_id', default_closed=False)
-        bones_header.label(text='Bones', icon='BONE_DATA')
+            # FPS
+            flow.prop(pg, 'fps_source')
+            if pg.fps_source == 'CUSTOM':
+                flow.prop(pg, 'fps_custom', text='Custom')
 
-        if bones_panel is not None:
+        # BONES
+        bones_header, bones_panel = layout.panel('Bones', default_closed=False)
+        bones_header.label(text='Bones', icon='BONE_DATA')
+        if bones_panel:
             row = bones_panel.row(align=True)
-            row.prop(pg, 'bone_filter_mode', text='Bones')
+
+            draw_bone_filter_mode(row, pg)
 
             if pg.bone_filter_mode == 'BONE_COLLECTIONS':
                 row = bones_panel.row(align=True)
@@ -316,14 +322,16 @@ class PSA_OT_export(Operator, ExportHelper):
                 bones_panel.template_list('PSX_UL_bone_collection_list', '', pg, 'bone_collection_list', pg, 'bone_collection_list_index',
                                      rows=rows)
 
-            bones_panel.prop(pg, 'should_enforce_bone_name_restrictions')
+        # TRANSFORM
+        transform_header, transform_panel = layout.panel('Advanced', default_closed=False)
+        transform_header.label(text='Transform')
 
-        # ROOT MOTION
-        advanced_header, advanced_panel = layout.panel('advanced_panel_id', default_closed=False)
-        advanced_header.label(text='Advanced')
-
-        if advanced_panel is not None:
-            advanced_panel.prop(pg, 'root_motion', text='Root Motion')
+        if transform_panel:
+            flow = transform_panel.grid_flow()
+            flow.use_property_split = True
+            flow.use_property_decorate = False
+            flow.prop(pg, 'root_motion', text='Root Motion')
+            flow.prop(pg, 'scale', text='Scale')
 
     @classmethod
     def _check_context(cls, context):
@@ -331,7 +339,16 @@ class PSA_OT_export(Operator, ExportHelper):
             raise RuntimeError('An armature must be selected')
 
         if context.view_layer.objects.active.type != 'ARMATURE':
-            raise RuntimeError('The selected object must be an armature')
+            raise RuntimeError('The active object must be an armature')
+
+        # If we have multiple armatures selected, make sure that they all use the same underlying armature data.
+        armature_objects = [obj for obj in context.selected_objects if obj.type == 'ARMATURE']
+
+        for obj in armature_objects:
+            if obj.data != context.view_layer.objects.active.data:
+                raise RuntimeError(f'All selected armatures must use the same armature data block.\n\n'
+                                   f'\The armature data block for "{obj.name}\" (\'{obj.data.name}\') does not match '
+                                   f'the active armature data block (\'{context.view_layer.objects.active.name}\')')
 
     def invoke(self, context, _event):
         try:
@@ -348,7 +365,7 @@ class PSA_OT_export(Operator, ExportHelper):
             # data created before (i.e. if no action was ever assigned to it).
             self.armature_object.animation_data_create()
 
-        update_actions_and_timeline_markers(context, self.armature_object.data)
+        update_actions_and_timeline_markers(context)
 
         populate_bone_collection_list(self.armature_object, pg.bone_collection_list)
 
@@ -372,58 +389,70 @@ class PSA_OT_export(Operator, ExportHelper):
         animation_data = animation_data_object.animation_data
 
         if animation_data is None:
-            message = bpy.app.translations.pgettext_iface('No animation data for object "{name}"')
-            message = message.format(name=animation_data_object.name)
-            raise RuntimeError(message)
+            raise RuntimeError(f'No animation data for object \'{animation_data_object.name}\'')
 
         export_sequences: List[PsaBuildSequence] = []
 
-        if pg.sequence_source == 'ACTIONS':
-            for action_item in filter(lambda x: x.is_selected, pg.action_list):
-                if len(action_item.action.fcurves) == 0:
-                    continue
-                export_sequence = PsaBuildSequence()
-                export_sequence.nla_state.action = action_item.action
-                export_sequence.name = action_item.name
-                export_sequence.nla_state.frame_start = action_item.frame_start
-                export_sequence.nla_state.frame_end = action_item.frame_end
-                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [action_item.action])
-                export_sequence.compression_ratio = action_item.action.psa_export.compression_ratio
-                export_sequence.key_quota = action_item.action.psa_export.key_quota
-                export_sequences.append(export_sequence)
-        elif pg.sequence_source == 'TIMELINE_MARKERS':
-            for marker_item in filter(lambda x: x.is_selected, pg.marker_list):
-                export_sequence = PsaBuildSequence()
-                export_sequence.name = marker_item.name
-                export_sequence.nla_state.action = None
-                export_sequence.nla_state.frame_start = marker_item.frame_start
-                export_sequence.nla_state.frame_end = marker_item.frame_end
-                nla_strips_actions = set(
-                    map(lambda x: x.action, get_nla_strips_in_frame_range(animation_data, marker_item.frame_start, marker_item.frame_end)))
-                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, nla_strips_actions)
-                export_sequences.append(export_sequence)
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            for nla_strip_item in filter(lambda x: x.is_selected, pg.nla_strip_list):
-                export_sequence = PsaBuildSequence()
-                export_sequence.name = nla_strip_item.name
-                export_sequence.nla_state.action = None
-                export_sequence.nla_state.frame_start = nla_strip_item.frame_start
-                export_sequence.nla_state.frame_end = nla_strip_item.frame_end
-                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [nla_strip_item.action])
-                export_sequences.append(export_sequence)
-        else:
-            message = bpy.app.translations.pgettext_iface('Unhandled sequence source: {sequence_source}')
-            raise ValueError(message.format(sequence_source=pg.sequence_source))
+        selected_armature_objects = [obj for obj in context.selected_objects if obj.type == 'ARMATURE']
+
+        match pg.sequence_source:
+            case 'ACTIONS':
+                for action_item in filter(lambda x: x.is_selected, pg.action_list):
+                    if len(action_item.action.fcurves) == 0:
+                        continue
+                    export_sequence = PsaBuildSequence(context.active_object, animation_data)
+                    export_sequence.name = action_item.name
+                    export_sequence.nla_state.action = action_item.action
+                    export_sequence.nla_state.frame_start = action_item.frame_start
+                    export_sequence.nla_state.frame_end = action_item.frame_end
+                    export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [action_item.action])
+                    export_sequence.compression_ratio = action_item.action.psa_export.compression_ratio
+                    export_sequence.key_quota = action_item.action.psa_export.key_quota
+                    export_sequences.append(export_sequence)
+            case 'TIMELINE_MARKERS':
+                for marker_item in filter(lambda x: x.is_selected, pg.marker_list):
+                    export_sequence = PsaBuildSequence(context.active_object, animation_data)
+                    export_sequence.name = marker_item.name
+                    export_sequence.nla_state.frame_start = marker_item.frame_start
+                    export_sequence.nla_state.frame_end = marker_item.frame_end
+                    nla_strips_actions = set(
+                        map(lambda x: x.action, get_nla_strips_in_frame_range(animation_data, marker_item.frame_start, marker_item.frame_end)))
+                    export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, nla_strips_actions)
+                    export_sequences.append(export_sequence)
+            case 'NLA_TRACK_STRIPS':
+                for nla_strip_item in filter(lambda x: x.is_selected, pg.nla_strip_list):
+                    export_sequence = PsaBuildSequence(context.active_object, animation_data)
+                    export_sequence.name = nla_strip_item.name
+                    export_sequence.nla_state.frame_start = nla_strip_item.frame_start
+                    export_sequence.nla_state.frame_end = nla_strip_item.frame_end
+                    export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [nla_strip_item.action])
+                    export_sequence.compression_ratio = nla_strip_item.action.psa_export.compression_ratio
+                    export_sequence.key_quota = nla_strip_item.action.psa_export.key_quota
+                    export_sequences.append(export_sequence)
+            case 'ACTIVE_ACTION':
+                for active_action_item in filter(lambda x: x.is_selected, pg.active_action_list):
+                    export_sequence = PsaBuildSequence(active_action_item.armature_object, active_action_item.armature_object.animation_data)
+                    action = active_action_item.action
+                    export_sequence.name = action.name
+                    export_sequence.nla_state.action = action
+                    export_sequence.nla_state.frame_start = int(action.frame_range[0])
+                    export_sequence.nla_state.frame_end = int(action.frame_range[1])
+                    export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [action])
+                    export_sequence.compression_ratio = action.psa_export.compression_ratio
+                    export_sequence.key_quota = action.psa_export.key_quota
+                    export_sequences.append(export_sequence)
+            case _:
+                raise ValueError(f'Unhandled sequence source: {pg.sequence_source}')
 
         options = PsaBuildOptions()
         options.animation_data = animation_data
         options.sequences = export_sequences
         options.bone_filter_mode = pg.bone_filter_mode
         options.bone_collection_indices = [x.index for x in pg.bone_collection_list if x.is_selected]
-        options.should_ignore_bone_name_restrictions = pg.should_enforce_bone_name_restrictions
         options.sequence_name_prefix = pg.sequence_name_prefix
         options.sequence_name_suffix = pg.sequence_name_suffix
         options.root_motion = pg.root_motion
+        options.scale = pg.scale
 
         try:
             psa = build_psa(context, options)
@@ -446,13 +475,17 @@ class PSA_OT_export_actions_select_all(Operator):
     @classmethod
     def get_item_list(cls, context):
         pg = context.scene.psa_export
-        if pg.sequence_source == 'ACTIONS':
-            return pg.action_list
-        elif pg.sequence_source == 'TIMELINE_MARKERS':
-            return pg.marker_list
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            return pg.nla_strip_list
-        return None
+        match pg.sequence_source:
+            case 'ACTIONS':
+                return pg.action_list
+            case 'TIMELINE_MARKERS':
+                return pg.marker_list
+            case 'NLA_TRACK_STRIPS':
+                return pg.nla_strip_list
+            case 'ACTIVE_ACTION':
+                return pg.active_action_list
+            case _:
+                return None
 
     @classmethod
     def poll(cls, context):
@@ -479,13 +512,17 @@ class PSA_OT_export_actions_deselect_all(Operator):
     @classmethod
     def get_item_list(cls, context):
         pg = context.scene.psa_export
-        if pg.sequence_source == 'ACTIONS':
-            return pg.action_list
-        elif pg.sequence_source == 'TIMELINE_MARKERS':
-            return pg.marker_list
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            return pg.nla_strip_list
-        return None
+        match pg.sequence_source:
+            case 'ACTIONS':
+                return pg.action_list
+            case 'TIMELINE_MARKERS':
+                return pg.marker_list
+            case 'NLA_TRACK_STRIPS':
+                return pg.nla_strip_list
+            case 'ACTIVE_ACTION':
+                return pg.active_action_list
+            case _:
+                return None
 
     @classmethod
     def poll(cls, context):

io_scene_psk_psa/psa/export/properties.py

@@ -1,13 +1,14 @@
 import re
 import sys
 from fnmatch import fnmatch
-from typing import List, Optional
+from typing import List, Optional, Tuple
 
 from bpy.props import BoolProperty, PointerProperty, EnumProperty, FloatProperty, CollectionProperty, IntProperty, \
     StringProperty
 from bpy.types import PropertyGroup, Object, Action, AnimData, Context
 
-from ...types import PSX_PG_bone_collection_list_item
+from ...shared.data import bone_filter_mode_items
+from ...shared.types import PSX_PG_bone_collection_list_item
 
 
 def psa_export_property_group_animation_data_override_poll(_context, obj):
@@ -26,6 +27,15 @@ class PSA_PG_export_action_list_item(PropertyGroup):
     is_pose_marker: BoolProperty(options={'HIDDEN'})
 
 
+class PSA_PG_export_active_action_list_item(PropertyGroup):
+    action: PointerProperty(type=Action)
+    name: StringProperty()
+    armature_object: PointerProperty(type=Object)
+    is_selected: BoolProperty(default=True)
+    frame_start: IntProperty(options={'HIDDEN'})
+    frame_end: IntProperty(options={'HIDDEN'})
+
+
 class PSA_PG_export_timeline_markers(PropertyGroup):  # TODO: rename this to singular
     marker_index: IntProperty()
     name: StringProperty()
@@ -42,20 +52,36 @@ class PSA_PG_export_nla_strip_list_item(PropertyGroup):
     is_selected: BoolProperty(default=True)
 
 
+def get_sequences_from_name_and_frame_range(name: str, frame_start: int, frame_end: int) -> List[Tuple[str, int, int]]:
+    reversed_pattern = r'(.+)/(.+)'
+    reversed_match = re.match(reversed_pattern, name)
+    if reversed_match:
+        forward_name = reversed_match.group(1)
+        backwards_name = reversed_match.group(2)
+        return [
+            (forward_name, frame_start, frame_end),
+            (backwards_name, frame_end, frame_start)
+        ]
+    else:
+        return [(name, frame_start, frame_end)]
+
+
 def nla_track_update_cb(self: 'PSA_PG_export', context: Context) -> None:
     self.nla_strip_list.clear()
-    if context.object is None or context.object.animation_data is None:
-        return
     match = re.match(r'^(\d+).+$', self.nla_track)
     self.nla_track_index = int(match.group(1)) if match else -1
     if self.nla_track_index >= 0:
-        nla_track = context.object.animation_data.nla_tracks[self.nla_track_index]
+        animation_data = get_animation_data(self, context)
+        if animation_data is None:
+            return
+        nla_track = animation_data.nla_tracks[self.nla_track_index]
         for nla_strip in nla_track.strips:
-            strip: PSA_PG_export_nla_strip_list_item = self.nla_strip_list.add()
-            strip.action = nla_strip.action
-            strip.name = nla_strip.name
-            strip.frame_start = nla_strip.frame_start
-            strip.frame_end = nla_strip.frame_end
+            for sequence_name, frame_start, frame_end in get_sequences_from_name_and_frame_range(nla_strip.name, nla_strip.frame_start, nla_strip.frame_end):
+                strip: PSA_PG_export_nla_strip_list_item = self.nla_strip_list.add()
+                strip.action = nla_strip.action
+                strip.name = sequence_name
+                strip.frame_start = frame_start
+                strip.frame_end = frame_end
 
 
 def get_animation_data(pg: 'PSA_PG_export', context: Context) -> Optional[AnimData]:
@@ -68,10 +94,9 @@ def get_animation_data(pg: 'PSA_PG_export', context: Context) -> Optional[AnimDa
 def nla_track_search_cb(self, context: Context, edit_text: str):
     pg = getattr(context.scene, 'psa_export')
     animation_data = get_animation_data(pg, context)
-    if animation_data is None:
-        return
-    for index, nla_track in enumerate(animation_data.nla_tracks):
-        yield f'{index} - {nla_track.name}'
+    if animation_data is not None:
+        for index, nla_track in enumerate(animation_data.nla_tracks):
+            yield f'{index} - {nla_track.name}'
 
 
 def animation_data_override_update_cb(self: 'PSA_PG_export', context: Context):
@@ -107,7 +132,8 @@ class PSA_PG_export(PropertyGroup):
         items=(
             ('ACTIONS', 'Actions', 'Sequences will be exported using actions', 'ACTION', 0),
             ('TIMELINE_MARKERS', 'Timeline Markers', 'Sequences are delineated by scene timeline markers', 'MARKER_HLT', 1),
-            ('NLA_TRACK_STRIPS', 'NLA Track Strips', 'Sequences are delineated by the start & end times of strips on the selected NLA track', 'NLA', 2)
+            ('NLA_TRACK_STRIPS', 'NLA Track Strips', 'Sequences are delineated by the start & end times of strips on the selected NLA track', 'NLA', 2),
+            ('ACTIVE_ACTION', 'Active Action', 'The active action will be exported for each selected armature', 'ACTION', 3),
         )
     )
     nla_track: StringProperty(
@@ -124,7 +150,7 @@ class PSA_PG_export(PropertyGroup):
         description='',
         items=(
             ('SCENE', 'Scene', '', 'SCENE_DATA', 0),
-            ('ACTION_METADATA', 'Action Metadata', 'The frame rate will be determined by action\'s FPS property found in the PSA Export panel.\n\nIf the Sequence Source is Timeline Markers, the lowest value of all contributing actions will be used', 'PROPERTIES', 1),
+            ('ACTION_METADATA', 'Action Metadata', 'The frame rate will be determined by action\'s FPS property found in the PSA Export panel.\n\nIf the Sequence Source is Timeline Markers, the lowest value of all contributing actions will be used', 'ACTION', 1),
             ('CUSTOM', 'Custom', '', 2)
         )
     )
@@ -136,24 +162,16 @@ class PSA_PG_export(PropertyGroup):
     marker_list_index: IntProperty(default=0)
     nla_strip_list: CollectionProperty(type=PSA_PG_export_nla_strip_list_item)
     nla_strip_list_index: IntProperty(default=0)
+    active_action_list: CollectionProperty(type=PSA_PG_export_active_action_list_item)
+    active_action_list_index: IntProperty(default=0)
     bone_filter_mode: EnumProperty(
         name='Bone Filter',
         options=empty_set,
         description='',
-        items=(
-            ('ALL', 'All', 'All bones will be exported'),
-            ('BONE_COLLECTIONS', 'Bone Collections', 'Only bones belonging to the selected bone collections and their '
-             'ancestors will be exported'),
-        )
+        items=bone_filter_mode_items,
     )
     bone_collection_list: CollectionProperty(type=PSX_PG_bone_collection_list_item)
     bone_collection_list_index: IntProperty(default=0, name='', description='')
-    should_enforce_bone_name_restrictions: BoolProperty(
-        default=False,
-        name='Enforce Bone Name Restrictions',
-        description='Bone names restrictions will be enforced. Note that bone names without properly formatted names '
-                    'may not be able to be referenced by some versions of the Unreal Engine'
-    )
     sequence_name_prefix: StringProperty(name='Prefix', options=empty_set)
     sequence_name_suffix: StringProperty(name='Suffix', options=empty_set)
     sequence_filter_name: StringProperty(
@@ -168,20 +186,27 @@ class PSA_PG_export(PropertyGroup):
         description='Invert filtering (show hidden items, and vice versa)')
     sequence_filter_asset: BoolProperty(
         default=False,
-        name='Assets',
+        name='Show assets',
         options=empty_set,
         description='Show actions that belong to an asset library')
     sequence_filter_pose_marker: BoolProperty(
         default=True,
-        name='Pose Markers',
+        name='Show pose markers',
         options=empty_set)
     sequence_use_filter_sort_reverse: BoolProperty(default=True, options=empty_set)
     sequence_filter_reversed: BoolProperty(
         default=True,
         options=empty_set,
-        name='Reversed',
+        name='Show Reversed',
         description='Show reversed sequences'
     )
+    scale: FloatProperty(
+        name='Scale',
+        default=1.0,
+        description='Scale factor to apply to the bone translations. Use this if you are exporting animations for a scaled PSK mesh',
+        min=0.0,
+        soft_max=100.0
+    )
 
 
 def filter_sequences(pg: PSA_PG_export, sequences) -> List[int]:
@@ -221,5 +246,6 @@ classes = (
     PSA_PG_export_action_list_item,
     PSA_PG_export_timeline_markers,
     PSA_PG_export_nla_strip_list_item,
+    PSA_PG_export_active_action_list_item,
     PSA_PG_export,
 )

io_scene_psk_psa/psa/export/ui.py

@@ -1,4 +1,4 @@
-from typing import cast
+import typing
 
 from bpy.types import UIList
 
@@ -6,16 +6,18 @@ from .properties import PSA_PG_export_action_list_item, filter_sequences
 
 
 class PSA_UL_export_sequences(UIList):
+    bl_idname = 'PSA_UL_export_sequences'
 
-    def __init__(self):
-        super(PSA_UL_export_sequences, self).__init__()
+    def __init__(self, *args, **kwargs):
+        super(PSA_UL_export_sequences, self).__init__(*args, **kwargs)
         # Show the filtering options by default.
         self.use_filter_show = True
 
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
-        item = cast(PSA_PG_export_action_list_item, item)
+        item = typing.cast(PSA_PG_export_action_list_item, item)
+
         is_pose_marker = hasattr(item, 'is_pose_marker') and item.is_pose_marker
-        layout.prop(item, 'is_selected', icon_only=True, text=item.name, translate=False)
+        layout.prop(item, 'is_selected', icon_only=True, text=item.name)
         if hasattr(item, 'action') and item.action is not None and item.action.asset_data is not None:
             layout.label(text='', icon='ASSET_MANAGER')
 
@@ -24,7 +26,10 @@ class PSA_UL_export_sequences(UIList):
         if item.frame_end < item.frame_start:
             row.label(text='', icon='FRAME_PREV')
         if is_pose_marker:
-            row.label(text=item.action.name, icon='PMARKER', translate=False)
+            row.label(text=item.action.name, icon='PMARKER')
+
+        if hasattr(item, 'armature_object') and item.armature_object is not None:
+            row.label(text=item.armature_object.name, icon='ARMATURE_DATA')
 
     def draw_filter(self, context, layout):
         pg = getattr(context.scene, 'psa_export')

io_scene_psk_psa/psa/import_/operators.py

@@ -1,9 +1,9 @@
 import os
 from pathlib import Path
+from typing import List
 
-import bpy
-from bpy.props import StringProperty
-from bpy.types import Operator, Event, Context, FileHandler
+from bpy.props import StringProperty, CollectionProperty
+from bpy.types import Operator, Event, Context, FileHandler, OperatorFileListElement, Object
 from bpy_extras.io_utils import ImportHelper
 
 from .properties import get_visible_sequences
@@ -29,7 +29,7 @@ class PSA_OT_import_sequences_from_text(Operator):
     def draw(self, context):
         layout = self.layout
         pg = getattr(context.scene, 'psa_import')
-        layout.label(icon='INFO', text='Each sequence name should be on a new line')
+        layout.label(icon='INFO', text='Each sequence name should be on a new line.')
         layout.prop(pg, 'select_text', text='')
 
     def execute(self, context):
@@ -44,16 +44,14 @@ class PSA_OT_import_sequences_from_text(Operator):
                 if sequence.action_name == line:
                     sequence.is_selected = True
                     count += 1
-        message = bpy.app.translations.pgettext('Selected {count} sequence(s)')
-        message = message.format(count=count)
-        self.report({'INFO'}, message)
+        self.report({'INFO'}, f'Selected {count} sequence(s)')
         return {'FINISHED'}
 
 
 class PSA_OT_import_sequences_select_all(Operator):
     bl_idname = 'psa_import.sequences_select_all'
     bl_label = 'All'
-    bl_description = 'Select all visible sequences'
+    bl_description = 'Select all sequences'
     bl_options = {'INTERNAL'}
 
     @classmethod
@@ -111,11 +109,98 @@ def load_psa_file(context, filepath: str):
         pg.psa_error = str(e)
 
 
-
 def on_psa_file_path_updated(cls, context):
     load_psa_file(context, cls.filepath)
 
 
+class PSA_OT_import_multiple(Operator):
+    bl_idname = 'psa_import.import_multiple'
+    bl_label = 'Import PSA'
+    bl_description = 'Import multiple PSA files'
+    bl_options = {'INTERNAL', 'UNDO'}
+
+    directory: StringProperty(subtype='FILE_PATH', options={'SKIP_SAVE', 'HIDDEN'})
+    files: CollectionProperty(type=OperatorFileListElement, options={'SKIP_SAVE', 'HIDDEN'})
+
+
+    def execute(self, context):
+        pg = getattr(context.scene, 'psa_import')
+        warnings = []
+
+        for file in self.files:
+            psa_path = os.path.join(self.directory, file.name)
+            psa_reader = PsaReader(psa_path)
+            sequence_names = list(psa_reader.sequences.keys())
+
+            result = _import_psa(context, pg, psa_path, sequence_names, context.view_layer.objects.active)
+            result.warnings.extend(warnings)
+
+        if len(result.warnings) > 0:
+            message = f'Imported {len(sequence_names)} action(s) with {len(result.warnings)} warning(s)\n'
+            self.report({'INFO'}, message)
+            for warning in result.warnings:
+                self.report({'WARNING'}, warning)
+
+        self.report({'INFO'}, f'Imported {len(sequence_names)} action(s)')
+
+        return {'FINISHED'}
+
+    def invoke(self, context: Context, event):
+        # Make sure the selected object is an armature.
+        active_object = context.view_layer.objects.active
+        if active_object is None or active_object.type != 'ARMATURE':
+            self.report({'ERROR_INVALID_CONTEXT'}, 'The active object must be an armature')
+            return {'CANCELLED'}
+
+        # Show the import operator properties in a pop-up dialog (do not use the file selector).
+        context.window_manager.invoke_props_dialog(self)
+        return {'RUNNING_MODAL'}
+
+    def draw(self, context):
+        layout = self.layout
+        pg = getattr(context.scene, 'psa_import')
+        draw_psa_import_options_no_panels(layout, pg)
+
+
+def _import_psa(context,
+                pg,
+                filepath: str,
+                sequence_names: List[str],
+                armature_object: Object
+                ):
+    options = PsaImportOptions()
+    options.sequence_names = sequence_names
+    options.should_use_fake_user = pg.should_use_fake_user
+    options.should_stash = pg.should_stash
+    options.action_name_prefix = pg.action_name_prefix if pg.should_use_action_name_prefix else ''
+    options.should_overwrite = pg.should_overwrite
+    options.should_write_metadata = pg.should_write_metadata
+    options.should_write_keyframes = pg.should_write_keyframes
+    options.should_convert_to_samples = pg.should_convert_to_samples
+    options.bone_mapping_mode = pg.bone_mapping_mode
+    options.fps_source = pg.fps_source
+    options.fps_custom = pg.fps_custom
+    options.translation_scale = pg.translation_scale
+
+    warnings = []
+
+    if options.should_use_config_file:
+        # Read the PSA config file if it exists.
+        config_path = Path(filepath).with_suffix('.config')
+        if config_path.exists():
+            try:
+                options.psa_config = read_psa_config(sequence_names, str(config_path))
+            except Exception as e:
+                warnings.append(f'Failed to read PSA config file: {e}')
+
+    psa_reader = PsaReader(filepath)
+
+    result = import_psa(context, psa_reader, armature_object, options)
+    result.warnings.extend(warnings)
+
+    return result
+
+
 class PSA_OT_import(Operator, ImportHelper):
     bl_idname = 'psa_import.import'
     bl_label = 'Import'
@@ -141,49 +226,21 @@ class PSA_OT_import(Operator, ImportHelper):
 
     def execute(self, context):
         pg = getattr(context.scene, 'psa_import')
-        psa_reader = PsaReader(self.filepath)
         sequence_names = [x.action_name for x in pg.sequence_list if x.is_selected]
 
         if len(sequence_names) == 0:
             self.report({'ERROR_INVALID_CONTEXT'}, 'No sequences selected')
             return {'CANCELLED'}
 
-        options = PsaImportOptions()
-        options.sequence_names = sequence_names
-        options.should_use_fake_user = pg.should_use_fake_user
-        options.should_stash = pg.should_stash
-        options.action_name_prefix = pg.action_name_prefix if pg.should_use_action_name_prefix else ''
-        options.should_overwrite = pg.should_overwrite
-        options.should_write_metadata = pg.should_write_metadata
-        options.should_write_keyframes = pg.should_write_keyframes
-        options.should_convert_to_samples = pg.should_convert_to_samples
-        options.bone_mapping_mode = pg.bone_mapping_mode
-        options.fps_source = pg.fps_source
-        options.fps_custom = pg.fps_custom
-
-        if options.should_use_config_file:
-            # Read the PSA config file if it exists.
-            config_path = Path(self.filepath).with_suffix('.config')
-            if config_path.exists():
-                try:
-                    options.psa_config = read_psa_config(psa_reader, str(config_path))
-                except Exception as e:
-                    message = bpy.app.translations.pgettext_iface('Failed to read PSA config file: {error}')
-                    message = message.format(error=str(e))
-                    self.report({'WARNING'}, message)
-
-        result = import_psa(context, psa_reader, context.view_layer.objects.active, options)
+        result = _import_psa(context, pg, self.filepath, sequence_names, context.view_layer.objects.active)
 
         if len(result.warnings) > 0:
-            message = bpy.app.translations.pgettext_iface('Imported {action_count} action(s) with {warning_count} warning(s)')
-            message = message.format(action_count=len(sequence_names), warning_count=len(result.warnings))
+            message = f'Imported {len(sequence_names)} action(s) with {len(result.warnings)} warning(s)\n'
             self.report({'WARNING'}, message)
             for warning in result.warnings:
                 self.report({'WARNING'}, warning)
         else:
-            message = bpy.app.translations.pgettext_iface('Imported {action_count} action(s)')
-            message = message.format(action_count=len(sequence_names))
-            self.report({'INFO'}, message)
+            self.report({'INFO'}, f'Imported {len(sequence_names)} action(s)')
 
         return {'FINISHED'}
 
@@ -257,6 +314,11 @@ class PSA_OT_import(Operator, ImportHelper):
             col.use_property_decorate = False
             col.prop(pg, 'bone_mapping_mode')
 
+            col = advanced_panel.column()
+            col.use_property_split = True
+            col.use_property_decorate = False
+            col.prop(pg, 'translation_scale', text='Translation Scale')
+
             col = advanced_panel.column(heading='Options')
             col.use_property_split = True
             col.use_property_decorate = False
@@ -265,10 +327,49 @@ class PSA_OT_import(Operator, ImportHelper):
             col.prop(pg, 'should_use_config_file')
 
 
+def draw_psa_import_options_no_panels(layout, pg):
+    col = layout.column(heading='Sequences')
+    col.use_property_split = True
+    col.use_property_decorate = False
+    col.prop(pg, 'fps_source')
+    if pg.fps_source == 'CUSTOM':
+        col.prop(pg, 'fps_custom')
+    col.prop(pg, 'should_overwrite')
+    col.prop(pg, 'should_use_action_name_prefix')
+    if pg.should_use_action_name_prefix:
+        col.prop(pg, 'action_name_prefix')
+
+    col = layout.column(heading='Write')
+    col.use_property_split = True
+    col.use_property_decorate = False
+    col.prop(pg, 'should_write_keyframes')
+    col.prop(pg, 'should_write_metadata')
+
+    if pg.should_write_keyframes:
+        col = col.column(heading='Keyframes')
+        col.use_property_split = True
+        col.use_property_decorate = False
+        col.prop(pg, 'should_convert_to_samples')
+
+    col = layout.column()
+    col.use_property_split = True
+    col.use_property_decorate = False
+    col.prop(pg, 'bone_mapping_mode')
+    col.prop(pg, 'translation_scale')
+
+    col = layout.column(heading='Options')
+    col.use_property_split = True
+    col.use_property_decorate = False
+    col.prop(pg, 'should_use_fake_user')
+    col.prop(pg, 'should_stash')
+    col.prop(pg, 'should_use_config_file')
+
+
 class PSA_FH_import(FileHandler):
     bl_idname = 'PSA_FH_import'
-    bl_label = ''
-    bl_import_operator = 'psa_import.import'
+    bl_label = 'File handler for Unreal PSA import'
+    bl_import_operator = 'psa_import.import_multiple'
+    bl_export_operator = 'psa_export.export'
     bl_file_extensions = '.psa'
 
     @classmethod
@@ -281,5 +382,6 @@ classes = (
     PSA_OT_import_sequences_deselect_all,
     PSA_OT_import_sequences_from_text,
     PSA_OT_import,
+    PSA_OT_import_multiple,
     PSA_FH_import,
 )

io_scene_psk_psa/psa/import_/properties.py

@@ -30,7 +30,7 @@ class PSA_PG_import(PropertyGroup):
     sequence_list_index: IntProperty(name='', default=0)
     should_use_fake_user: BoolProperty(default=True, name='Fake User',
                                        description='Assign each imported action a fake user so that the data block is '
-                                                   'always saved',
+                                                   'saved even it has no users',
                                        options=empty_set)
     should_use_config_file: BoolProperty(default=True, name='Use Config File',
                                             description='Use the .config file that is sometimes generated when the PSA '
@@ -48,8 +48,8 @@ class PSA_PG_import(PropertyGroup):
                                                'will have it\'s data overwritten instead of a new action being created')
     should_write_keyframes: BoolProperty(default=True, name='Keyframes', options=empty_set)
     should_write_metadata: BoolProperty(default=True, name='Metadata', options=empty_set,
-                                        description='Additional data will be written to the properties of the Action '
-                                        '(e.g., frame rate)')
+                                        description='Additional data will be written to the custom properties of the '
+                                                    'Action (e.g., frame rate)')
     sequence_filter_name: StringProperty(default='', options={'TEXTEDIT_UPDATE'})
     sequence_filter_is_selected: BoolProperty(default=False, options=empty_set, name='Only Show Selected',
                                               description='Only show selected sequences')
@@ -64,14 +64,15 @@ class PSA_PG_import(PropertyGroup):
                     'Recommended if you do not plan on editing the actions directly'
     )
     bone_mapping_mode: EnumProperty(
-        name='Bone Name Mapping',
+        name='Bone Mapping',
         options=empty_set,
-        description='The method by which bones from the PSA file are mapped to the bones of the armature',
+        description='The method by which bones from the incoming PSA file are mapped to the armature',
         items=(
-            ('EXACT', 'Exact', 'Bone names must match exactly', 'EXACT', 0),
-            ('CASE_INSENSITIVE', 'Case Insensitive', 'Bones names must match, ignoring case (e.g., the PSA bone '
-             '\'aBcDeF\' can be mapped to the armature bone \'ABCDEF\')', 'CASE_INSENSITIVE', 1),
-        )
+            ('EXACT', 'Exact', 'Bone names must match exactly.', 'EXACT', 0),
+            ('CASE_INSENSITIVE', 'Case Insensitive', 'Bones names must match, ignoring case (e.g., the bone PSA bone '
+             '\'root\' can be mapped to the armature bone \'Root\')', 'CASE_INSENSITIVE', 1),
+        ),
+        default='CASE_INSENSITIVE'
     )
     fps_source: EnumProperty(name='FPS Source', items=(
         ('SEQUENCE', 'Sequence', 'The sequence frame rate matches the original frame rate', 'ACTION', 0),
@@ -88,6 +89,25 @@ class PSA_PG_import(PropertyGroup):
         soft_max=60.0,
         step=100,
     )
+    compression_ratio_source: EnumProperty(name='Compression Ratio Source', items=(
+        ('ACTION', 'Action', 'The compression ratio is sourced from the action metadata', 'ACTION', 0),
+        ('CUSTOM', 'Custom', 'The compression ratio is set to a custom value', 1),
+    ))
+    compression_ratio_custom: FloatProperty(
+        default=1.0,
+        name='Custom Compression Ratio',
+        description='The compression ratio to apply to the imported sequences',
+        options=empty_set,
+        min=0.0,
+        soft_min=0.0,
+        soft_max=1.0,
+        step=0.0625,
+    )
+    translation_scale: FloatProperty(
+        name='Translation Scale',
+        default=1.0,
+        description='Scale factor for bone translation values. Use this when the scale of the armature does not match the PSA file'
+    )
 
 
 def filter_sequences(pg: PSA_PG_import, sequences) -> List[int]:

io_scene_psk_psa/psa/import_/ui.py

@@ -4,13 +4,14 @@ from bpy.types import UIList
 from .properties import filter_sequences
 
 
-class PSA_UL_sequences(UIList):
+class PSA_UL_sequences_mixin(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_property, index, flt_flag):
         row = layout.row(align=True)
         split = row.split(align=True, factor=0.75)
         column = split.row(align=True)
         column.alignment = 'LEFT'
-        column.prop(item, 'is_selected', text=getattr(item, 'action_name'), translate=False)
+        column.prop(item, 'is_selected', icon_only=True)
+        column.label(text=getattr(item, 'action_name'))
 
     def draw_filter(self, context, layout):
         pg = getattr(context.scene, 'psa_import')
@@ -29,11 +30,15 @@ class PSA_UL_sequences(UIList):
         return flt_flags, flt_neworder
 
 
-class PSA_UL_import_sequences(PSA_UL_sequences, UIList):
+class PSA_UL_sequences(PSA_UL_sequences_mixin):
     pass
 
 
-class PSA_UL_import_actions(PSA_UL_sequences, UIList):
+class PSA_UL_import_sequences(PSA_UL_sequences_mixin):
+    pass
+
+
+class PSA_UL_import_actions(PSA_UL_sequences_mixin):
     pass
 
 

io_scene_psk_psa/psa/importer.py

@@ -24,6 +24,7 @@ class PsaImportOptions(object):
         self.bone_mapping_mode = 'CASE_INSENSITIVE'
         self.fps_source = 'SEQUENCE'
         self.fps_custom: float = 30.0
+        self.translation_scale: float = 1.0
         self.should_use_config_file = True
         self.psa_config: PsaConfig = PsaConfig()
 
@@ -88,6 +89,7 @@ def _get_sample_frame_times(source_frame_count: int, frame_step: float) -> typin
         time += frame_step
     yield source_frame_count - 1
 
+
 def _resample_sequence_data_matrix(sequence_data_matrix: np.ndarray, frame_step: float = 1.0) -> np.ndarray:
     """
     Resamples the sequence data matrix to the target frame count.
@@ -143,7 +145,7 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
         if armature_bone_index is not None:
             # Ensure that no other PSA bone has been mapped to this armature bone yet.
             if armature_bone_index not in armature_to_psa_bone_indices:
-                psa_to_armature_bone_indices[psa_bone_index] = armature_bone_names.index(psa_bone_name)
+                psa_to_armature_bone_indices[psa_bone_index] = armature_bone_index
                 armature_to_psa_bone_indices[armature_bone_index] = psa_bone_index
             else:
                 # This armature bone has already been mapped to a PSA bone.
@@ -158,21 +160,21 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
             psa_bone_name = psa_bone_names[psa_bone_index]
             armature_bone_name = armature_bone_names[armature_bone_index]
             mapped_psa_bone_name = psa_bone_names[mapped_psa_bone_index]
-            message = bpy.app.translations.pgettext_iface('PSA bone {bone_index} ({bone_name}) could not be mapped to armature bone {armature_bone_index} ({armature_bone_name}) because the armature bone is already mapped to PSA bone {mapped_psa_bone_index} ({mapped_psa_bone_name})')
-            message = message.format(bone_index=psa_bone_index, bone_name=psa_bone_name, armature_bone_index=armature_bone_index, armature_bone_name=armature_bone_name, mapped_psa_bone_index=mapped_psa_bone_index, mapped_psa_bone_name=mapped_psa_bone_name)
-            result.warnings.append(message)
+            result.warnings.append(f'PSA bone {psa_bone_index} ({psa_bone_name}) could not be mapped to armature bone {armature_bone_index} ({armature_bone_name}) because the armature bone is already mapped to PSA bone {mapped_psa_bone_index} ({mapped_psa_bone_name})')
 
     # Report if there are missing bones in the target armature.
     missing_bone_names = set(psa_bone_names).difference(set(armature_bone_names))
     if len(missing_bone_names) > 0:
-        message = bpy.app.translations.pgettext_iface('The armature \'{armature_name}\' is missing {count} bones that exist in the PSA:\n{missing_bone_names}')
-        message = message.format(armature_name=armature_object.name, count=len(missing_bone_names), missing_bone_names=str(list(sorted(missing_bone_names))))
-        result.warnings.append(message)
+        result.warnings.append(
+            f'The armature \'{armature_object.name}\' is missing {len(missing_bone_names)} bones that exist in '
+            'the PSA:\n' +
+            str(list(sorted(missing_bone_names)))
+        )
     del armature_bone_names
 
     # Create intermediate bone data for import operations.
     import_bones = []
-    import_bones_dict = dict()
+    psa_bone_names_to_import_bones = dict()
 
     for (psa_bone_index, psa_bone), psa_bone_name in zip(enumerate(psa_reader.bones), psa_bone_names):
         if psa_bone_index not in psa_to_armature_bone_indices:
@@ -182,17 +184,22 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
         import_bone = ImportBone(psa_bone)
         import_bone.armature_bone = armature_data.bones[psa_bone_name]
         import_bone.pose_bone = armature_object.pose.bones[psa_bone_name]
-        import_bones_dict[psa_bone_name] = import_bone
+        psa_bone_names_to_import_bones[psa_bone_name] = import_bone
         import_bones.append(import_bone)
 
+    bones_with_missing_parents = []
+
     for import_bone in filter(lambda x: x is not None, import_bones):
         armature_bone = import_bone.armature_bone
-
-        if armature_bone.parent is not None and armature_bone.parent.name in psa_bone_names:
-            import_bone.parent = import_bones_dict[armature_bone.parent.name]
-
+        has_parent = armature_bone.parent is not None
+        if has_parent:
+            if armature_bone.parent.name in psa_bone_names:
+                import_bone.parent = psa_bone_names_to_import_bones[armature_bone.parent.name]
+            else:
+                # Add a warning if the parent bone is not in the PSA.
+                bones_with_missing_parents.append(armature_bone)
         # Calculate the original location & rotation of each bone (in world-space maybe?)
-        if import_bone.parent is not None:
+        if has_parent:
             import_bone.original_location = armature_bone.matrix_local.translation - armature_bone.parent.matrix_local.translation
             import_bone.original_location.rotate(armature_bone.parent.matrix_local.to_quaternion().conjugated())
             import_bone.original_rotation = armature_bone.matrix_local.to_quaternion()
@@ -204,6 +211,12 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
 
         import_bone.post_rotation = import_bone.original_rotation.conjugated()
 
+    # Warn about bones with missing parents.
+    if len(bones_with_missing_parents) > 0:
+        count = len(bones_with_missing_parents)
+        message = f'{count} bone(s) have parents that are not present in the PSA:\n' + str([x.name for x in bones_with_missing_parents])
+        result.warnings.append(message)
+
     context.window_manager.progress_begin(0, len(sequences))
 
     # Create and populate the data for new sequences.
@@ -232,9 +245,7 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
             case 'SEQUENCE':
                 target_fps = sequence.fps
             case _:
-                message = bpy.app.translations.pgettext_iface('Invalid FPS source: {fps_source}')
-                message = message.format(fps_source=options.fps_source)
-                raise ValueError(message)
+                raise ValueError(f'Unknown FPS source: {options.fps_source}')
 
         if options.should_write_keyframes:
             # Remove existing f-curves.
@@ -262,6 +273,10 @@ def import_psa(context: Context, psa_reader: PsaReader, armature_object: Object,
             # Read the sequence data matrix from the PSA.
             sequence_data_matrix = psa_reader.read_sequence_data_matrix(sequence_name)
 
+            if options.translation_scale != 1.0:
+                # Scale the translation data.
+                sequence_data_matrix[:, :, 4:] *= options.translation_scale
+
             # Convert the sequence's data from world-space to local-space.
             for bone_index, import_bone in enumerate(import_bones):
                 if import_bone is None:

io_scene_psk_psa/psa/reader.py

@@ -1,7 +1,5 @@
 import ctypes
-import warnings
 
-import bpy.app.translations
 import numpy as np
 
 from .data import *
@@ -115,7 +113,5 @@ class PsaReader(object):
                 fp.seek(section.data_size * section.data_count, 1)
             else:
                 fp.seek(section.data_size * section.data_count, 1)
-                message = bpy.app.translations.pgettext_iface('Unhandled section "{section_name}" at position {position}')
-                message = message.format(section_name=section.name.decode(), position=fp.tell())
-                warnings.warn(message)
+                print(f'Unrecognized section in PSA: "{section.name}"')
         return psa

io_scene_psk_psa/psa/writer.py

@@ -2,7 +2,7 @@ from ctypes import Structure, sizeof
 from typing import Type
 
 from .data import Psa
-from ..data import Section
+from ..shared.data import Section
 
 
 def write_section(fp, name: bytes, data_type: Type[Structure] = None, data: list = None):

io_scene_psk_psa/psk/builder.py

@@ -1,18 +1,20 @@
+import typing
 from typing import Optional
 
 import bmesh
-import bpy
 import numpy as np
-from bpy.types import Armature, Material
+from bpy.types import Material, Collection, Context
+from mathutils import Matrix, Vector
 
 from .data import *
 from .properties import triangle_type_and_bit_flags_to_poly_flags
-from ..helpers import *
+from ..shared.dfs import dfs_collection_objects, dfs_view_layer_objects, DfsObject
+from ..shared.helpers import *
 
 
 class PskInputObjects(object):
     def __init__(self):
-        self.mesh_objects = set()
+        self.mesh_objects: List[DfsObject] = []
         self.armature_object: Optional[Object] = None
 
 
@@ -20,76 +22,129 @@ class PskBuildOptions(object):
     def __init__(self):
         self.bone_filter_mode = 'ALL'
         self.bone_collection_indices: List[int] = []
-        self.use_raw_mesh_data = True
+        self.object_eval_state = 'EVALUATED'
         self.materials: List[Material] = []
-        self.should_enforce_bone_name_restrictions = False
+        self.scale = 1.0
+        self.export_space = 'WORLD'
+        self.forward_axis = 'X'
+        self.up_axis = 'Z'
 
 
-def get_psk_input_objects(context) -> PskInputObjects:
-    input_objects = PskInputObjects()
+def get_vector_from_axis_identifier(axis_identifier: str) -> Vector:
+    match axis_identifier:
+        case 'X':
+            return Vector((1.0, 0.0, 0.0))
+        case 'Y':
+            return Vector((0.0, 1.0, 0.0))
+        case 'Z':
+            return Vector((0.0, 0.0, 1.0))
+        case '-X':
+            return Vector((-1.0, 0.0, 0.0))
+        case '-Y':
+            return Vector((0.0, -1.0, 0.0))
+        case '-Z':
+            return Vector((0.0, 0.0, -1.0))
 
-    # Check if the active object is an armature.
-    if context.active_object is not None and context.active_object.type == 'ARMATURE':
-        # Collect all the mesh objects that have an armature modifier referencing the active armature.
-        input_objects.armature_object = context.active_object
-        for obj in filter(lambda x: x.type == 'MESH' and x.visible_get(), context.view_layer.objects):
-            for modifier in obj.modifiers:
-                if modifier.type == 'ARMATURE' and modifier.object == input_objects.armature_object:
-                    input_objects.mesh_objects.add(obj)
 
-    for selected_object in context.view_layer.objects.selected:
-        if selected_object is input_objects.armature_object:
-            continue
-        if selected_object.type == 'MESH':
-            input_objects.mesh_objects.add(selected_object)
+def get_coordinate_system_transform(forward_axis: str = 'X', up_axis: str = 'Z') -> Matrix:
+    forward = get_vector_from_axis_identifier(forward_axis)
+    up = get_vector_from_axis_identifier(up_axis)
+    left = up.cross(forward)
+    return Matrix((
+        (forward.x, forward.y, forward.z, 0.0),
+        (left.x, left.y, left.z, 0.0),
+        (up.x, up.y, up.z, 0.0),
+        (0.0, 0.0, 0.0, 1.0)
+    )).inverted()
 
-    if len(input_objects.mesh_objects) == 0:
-        raise RuntimeError('At least one mesh must be selected')
 
-    for mesh_object in input_objects.mesh_objects:
-        if len(mesh_object.data.materials) == 0:
-            message = bpy.app.translations.pgettext_iface('Mesh "{object_name}" must have at least one material')
-            raise RuntimeError(message.format(object_name=mesh_object.name))
+def get_mesh_objects_for_collection(collection: Collection) -> Iterable[DfsObject]:
+    return filter(lambda x: x.obj.type == 'MESH', dfs_collection_objects(collection))
 
-    # Ensure that there are either no armature modifiers (static mesh)
-    # or that there is exactly one armature modifier object shared between
-    # all selected meshes
+
+def get_mesh_objects_for_context(context: Context) -> Iterable[DfsObject]:
+    for dfs_object in dfs_view_layer_objects(context.view_layer):
+        if dfs_object.obj.type == 'MESH' and dfs_object.is_selected:
+            yield dfs_object
+
+
+def get_armature_for_mesh_objects(mesh_objects: Iterable[Object]) -> Optional[Object]:
+    # Ensure that there are either no armature modifiers (static mesh) or that there is exactly one armature modifier
+    # object shared between all meshes.
     armature_modifier_objects = set()
-
-    for mesh_object in input_objects.mesh_objects:
+    for mesh_object in mesh_objects:
         modifiers = [x for x in mesh_object.modifiers if x.type == 'ARMATURE']
         if len(modifiers) == 0:
             continue
         elif len(modifiers) > 1:
-            message = bpy.app.translations.pgettext_iface('Mesh "{object_name}" must have only one armature modifier')
-            raise RuntimeError(message.format(object_name=mesh_object.name))
+            raise RuntimeError(f'Mesh "{mesh_object.name}" must have only one armature modifier')
         armature_modifier_objects.add(modifiers[0].object)
 
     if len(armature_modifier_objects) > 1:
         armature_modifier_names = [x.name for x in armature_modifier_objects]
-        message = bpy.app.translations.pgettext_iface('All selected meshes must have the same armature modifier, encountered {count} ({names})')
-        message = message.format(count=len(armature_modifier_objects), names=', '.join(armature_modifier_names))
-        raise RuntimeError(message)
+        raise RuntimeError(
+            f'All meshes must have the same armature modifier, encountered {len(armature_modifier_names)} ({", ".join(armature_modifier_names)})')
     elif len(armature_modifier_objects) == 1:
-        input_objects.armature_object = list(armature_modifier_objects)[0]
+        return list(armature_modifier_objects)[0]
+    else:
+        return None
+
+
+def _get_psk_input_objects(mesh_objects: Iterable[DfsObject]) -> PskInputObjects:
+    mesh_objects = list(mesh_objects)
+    if len(mesh_objects) == 0:
+        raise RuntimeError('At least one mesh must be selected')
+
+    input_objects = PskInputObjects()
+    input_objects.mesh_objects = mesh_objects
+    input_objects.armature_object = get_armature_for_mesh_objects([x.obj for x in mesh_objects])
 
     return input_objects
 
 
+def get_psk_input_objects_for_context(context: Context) -> PskInputObjects:
+    mesh_objects = list(get_mesh_objects_for_context(context))
+    return _get_psk_input_objects(mesh_objects)
+
+
+def get_psk_input_objects_for_collection(collection: Collection, should_exclude_hidden_meshes: bool = True) -> PskInputObjects:
+    mesh_objects = get_mesh_objects_for_collection(collection)
+    if should_exclude_hidden_meshes:
+        mesh_objects = filter(lambda x: x.is_visible, mesh_objects)
+    return _get_psk_input_objects(mesh_objects)
+
+
 class PskBuildResult(object):
     def __init__(self):
         self.psk = None
         self.warnings: List[str] = []
 
 
-def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
-    input_objects = get_psk_input_objects(context)
+def build_psk(context, input_objects: PskInputObjects, options: PskBuildOptions) -> PskBuildResult:
     armature_object: bpy.types.Object = input_objects.armature_object
 
     result = PskBuildResult()
     psk = Psk()
     bones = []
 
+    def get_export_space_matrix():
+        match options.export_space:
+            case 'WORLD':
+                return Matrix.Identity(4)
+            case 'ARMATURE':
+                if armature_object is not None:
+                    return armature_object.matrix_world.inverted()
+                else:
+                    return Matrix.Identity(4)
+            case _:
+                raise ValueError(f'Invalid export space: {options.export_space}')
+
+    coordinate_system_matrix = get_coordinate_system_transform(options.forward_axis, options.up_axis)
+    coordinate_system_default_rotation = coordinate_system_matrix.to_quaternion()
+
+    export_space_matrix = get_export_space_matrix()  # TODO: maybe neutralize the scale here?
+    scale_matrix = coordinate_system_matrix @ Matrix.Scale(options.scale, 4)
+
     if armature_object is None or len(armature_object.data.bones) == 0:
         # If the mesh has no armature object or no bones, simply assign it a dummy bone at the root to satisfy the
         # requirement that a PSK file must have at least one bone.
@@ -99,24 +154,20 @@ def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
         psk_bone.children_count = 0
         psk_bone.parent_index = 0
         psk_bone.location = Vector3.zero()
-        psk_bone.rotation = Quaternion.identity()
+        psk_bone.rotation = coordinate_system_default_rotation
         psk.bones.append(psk_bone)
     else:
         bone_names = get_export_bone_names(armature_object, options.bone_filter_mode, options.bone_collection_indices)
         armature_data = typing.cast(Armature, armature_object.data)
         bones = [armature_data.bones[bone_name] for bone_name in bone_names]
 
-        # Check that all bone names are valid.
-        if options.should_enforce_bone_name_restrictions:
-            check_bone_names(map(lambda x: x.name, bones))
-
         for bone in bones:
             psk_bone = Psk.Bone()
             try:
                 psk_bone.name = bytes(bone.name, encoding='windows-1252')
             except UnicodeEncodeError:
-                message = bpy.app.translations.pgettext_iface('Bone name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage')
-                raise RuntimeError(message.format(name=bone.name))
+                raise RuntimeError(
+                    f'Bone name "{bone.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
             psk_bone.flags = 0
             psk_bone.children_count = 0
 
@@ -134,12 +185,30 @@ def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
                 parent_tail = inverse_parent_rotation @ bone.parent.tail
                 location = (parent_tail - parent_head) + bone.head
             else:
-                armature_local_matrix = armature_object.matrix_local
+                def get_armature_local_matrix():
+                    match options.export_space:
+                        case 'WORLD':
+                            return armature_object.matrix_world
+                        case 'ARMATURE':
+                            return Matrix.Identity(4)
+                        case _:
+                            raise ValueError(f'Invalid export space: {options.export_space}')
+
+                armature_local_matrix = get_armature_local_matrix()
                 location = armature_local_matrix @ bone.head
                 bone_rotation = bone.matrix.to_quaternion().conjugated()
                 local_rotation = armature_local_matrix.to_3x3().to_quaternion().conjugated()
                 rotation = bone_rotation @ local_rotation
                 rotation.conjugate()
+                rotation = coordinate_system_default_rotation @ rotation
+
+            location = scale_matrix @ location
+
+            # If the armature object has been scaled, we need to scale the bone's location to match.
+            _, _, armature_object_scale = armature_object.matrix_world.decompose()
+            location.x *= armature_object_scale.x
+            location.y *= armature_object_scale.y
+            location.z *= armature_object_scale.z
 
             psk_bone.location.x = location.x
             psk_bone.location.y = location.y
@@ -158,73 +227,114 @@ def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
         try:
             psk_material.name = bytes(material.name, encoding='windows-1252')
         except UnicodeEncodeError:
-            message = bpy.app.translations.pgettext_iface('Material name "{name}" contains characters that cannot be encoded in the Windows-1252 codepage')
-            raise RuntimeError(message.format(name=material.name))
+            raise RuntimeError(f'Material name "{material.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
         psk_material.texture_index = len(psk.materials)
         psk_material.poly_flags = triangle_type_and_bit_flags_to_poly_flags(material.psk.mesh_triangle_type,
                                                                             material.psk.mesh_triangle_bit_flags)
         psk.materials.append(psk_material)
 
+    # TODO: This wasn't left in a good state. We should detect if we need to add a "default" material.
+    #  This can be done by checking if there is an empty material slot on any of the mesh objects, or if there are
+    #  no material slots on any of the mesh objects.
+    #  If so, it should be added to the end of the list of materials, and its index should mapped to a None value in the
+    #  material indices list.
+    if len(psk.materials) == 0:
+        # Add a default material if no materials are present.
+        psk_material = Psk.Material()
+        psk_material.name = bytes('None', encoding='windows-1252')
+        psk.materials.append(psk_material)
+
     context.window_manager.progress_begin(0, len(input_objects.mesh_objects))
 
     material_names = [m.name for m in options.materials]
 
     for object_index, input_mesh_object in enumerate(input_objects.mesh_objects):
 
+        obj, instance_objects, matrix_world = input_mesh_object.obj, input_mesh_object.instance_objects, input_mesh_object.matrix_world
+
         should_flip_normals = False
 
+        def get_material_name_indices(obj: Object, material_names: List[str]) -> Iterable[int]:
+            '''
+            Returns the index of the material in the list of material names.
+            If the material is not found, the index 0 is returned.
+            '''
+            for material_slot in obj.material_slots:
+                if material_slot.material is None:
+                    yield 0
+                else:
+                    try:
+                        yield material_names.index(material_slot.material.name)
+                    except ValueError:
+                        yield 0
+
         # MATERIALS
-        material_indices = [material_names.index(material_slot.material.name) for material_slot in input_mesh_object.material_slots]
+        material_indices = list(get_material_name_indices(obj, material_names))
+
+        if len(material_indices) == 0:
+            # Add a default material if no materials are present.
+            material_indices = [0]
 
         # MESH DATA
-        if options.use_raw_mesh_data:
-            mesh_object = input_mesh_object
-            mesh_data = input_mesh_object.data
-        else:
-            # Create a copy of the mesh object after non-armature modifiers are applied.
+        match options.object_eval_state:
+            case 'ORIGINAL':
+                mesh_object = obj
+                mesh_data = obj.data
+            case 'EVALUATED':
+                # Create a copy of the mesh object after non-armature modifiers are applied.
 
-            # Temporarily force the armature into the rest position.
-            # We will undo this later.
-            old_pose_position = None
-            if armature_object is not None:
-                old_pose_position = armature_object.data.pose_position
-                armature_object.data.pose_position = 'REST'
+                # Temporarily force the armature into the rest position.
+                # We will undo this later.
+                old_pose_position = None
+                if armature_object is not None:
+                    old_pose_position = armature_object.data.pose_position
+                    armature_object.data.pose_position = 'REST'
 
-            depsgraph = context.evaluated_depsgraph_get()
-            bm = bmesh.new()
-            bm.from_object(input_mesh_object, depsgraph)
-            mesh_data = bpy.data.meshes.new('')
-            bm.to_mesh(mesh_data)
-            del bm
-            mesh_object = bpy.data.objects.new('', mesh_data)
-            mesh_object.matrix_world = input_mesh_object.matrix_world
+                depsgraph = context.evaluated_depsgraph_get()
+                bm = bmesh.new()
 
-            scale = (input_mesh_object.scale.x, input_mesh_object.scale.y, input_mesh_object.scale.z)
+                try:
+                    bm.from_object(obj, depsgraph)
+                except ValueError:
+                    raise RuntimeError(f'Object "{obj.name}" is not evaluated.\n'
+                    'This is likely because the object is in a collection that has been excluded from the view layer.')
 
-            # Negative scaling in Blender results in inverted normals after the scale is applied. However, if the scale
-            # is not applied, the normals will appear unaffected in the viewport. The evaluated mesh data used in the
-            # export will have the scale applied, but this behavior is not obvious to the user.
-            #
-            # In order to have the exporter be as WYSIWYG as possible, we need to check for negative scaling and invert
-            # the normals if necessary. If two axes have negative scaling and the third has positive scaling, the
-            # normals will be correct. We can detect this by checking if the number of negative scaling axes is odd. If
-            # it is, we need to invert the normals of the mesh by swapping the order of the vertices in each face.
-            should_flip_normals = sum(1 for x in scale if x < 0) % 2 == 1
+                mesh_data = bpy.data.meshes.new('')
+                bm.to_mesh(mesh_data)
+                del bm
+                mesh_object = bpy.data.objects.new('', mesh_data)
+                mesh_object.matrix_world = matrix_world
 
-            # Copy the vertex groups
-            for vertex_group in input_mesh_object.vertex_groups:
-                mesh_object.vertex_groups.new(name=vertex_group.name)
+                # Extract the scale from the matrix.
+                _, _, scale = matrix_world.decompose()
 
-            # Restore the previous pose position on the armature.
-            if old_pose_position is not None:
-                armature_object.data.pose_position = old_pose_position
+                # Negative scaling in Blender results in inverted normals after the scale is applied. However, if the scale
+                # is not applied, the normals will appear unaffected in the viewport. The evaluated mesh data used in the
+                # export will have the scale applied, but this behavior is not obvious to the user.
+                #
+                # In order to have the exporter be as WYSIWYG as possible, we need to check for negative scaling and invert
+                # the normals if necessary. If two axes have negative scaling and the third has positive scaling, the
+                # normals will be correct. We can detect this by checking if the number of negative scaling axes is odd. If
+                # it is, we need to invert the normals of the mesh by swapping the order of the vertices in each face.
+                should_flip_normals = sum(1 for x in scale if x < 0) % 2 == 1
+
+                # Copy the vertex groups
+                for vertex_group in obj.vertex_groups:
+                    mesh_object.vertex_groups.new(name=vertex_group.name)
+
+                # Restore the previous pose position on the armature.
+                if old_pose_position is not None:
+                    armature_object.data.pose_position = old_pose_position
+            case _:
+                raise ValueError(f'Invalid object evaluation state: {options.object_eval_state}')
 
         vertex_offset = len(psk.points)
+        matrix_world = scale_matrix @ export_space_matrix @ mesh_object.matrix_world
 
         # VERTICES
         for vertex in mesh_data.vertices:
             point = Vector3()
-            v = mesh_object.matrix_world @ vertex.co
+            v = matrix_world @ vertex.co
             point.x = v.x
             point.y = v.y
             point.z = v.z
@@ -304,6 +414,12 @@ def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
                                 break
                             except ValueError:
                                 bone = bone.parent
+
+            # Keep track of which vertices have been assigned weights.
+            # The ones that have not been assigned weights will be assigned to the root bone.
+            # Without this, some older versions of UnrealEd may have corrupted meshes.
+            vertices_assigned_weights = np.full(len(mesh_data.vertices), False)
+
             for vertex_group_index, vertex_group in enumerate(mesh_object.vertex_groups):
                 if vertex_group_index not in vertex_group_bone_indices:
                     # Vertex group has no associated bone, skip it.
@@ -321,8 +437,18 @@ def build_psk(context, options: PskBuildOptions) -> PskBuildResult:
                     w.point_index = vertex_offset + vertex_index
                     w.weight = weight
                     psk.weights.append(w)
+                    vertices_assigned_weights[vertex_index] = True
 
-        if not options.use_raw_mesh_data:
+            # Assign vertices that have not been assigned weights to the root bone.
+            for vertex_index, assigned in enumerate(vertices_assigned_weights):
+                if not assigned:
+                    w = Psk.Weight()
+                    w.bone_index = 0
+                    w.point_index = vertex_offset + vertex_index
+                    w.weight = 1.0
+                    psk.weights.append(w)
+
+        if options.object_eval_state == 'EVALUATED':
             bpy.data.objects.remove(mesh_object)
             bpy.data.meshes.remove(mesh_data)
             del mesh_data

io_scene_psk_psa/psk/data.py

@@ -1,6 +1,6 @@
 from typing import List
 
-from ..data import *
+from ..shared.data import *
 
 
 class Psk(object):

io_scene_psk_psa/psk/export/operators.py

@@ -1,43 +1,104 @@
+from typing import List, Optional, cast, Iterable
+
 import bpy
 from bpy.props import StringProperty
-from bpy.types import Operator
+from bpy.types import Operator, Context, Object, Collection, SpaceProperties, Depsgraph, Material
 from bpy_extras.io_utils import ExportHelper
 
-from ..builder import build_psk, PskBuildOptions, get_psk_input_objects
+from .properties import add_psk_export_properties
+from ..builder import build_psk, PskBuildOptions, get_psk_input_objects_for_context, \
+    get_psk_input_objects_for_collection
 from ..writer import write_psk
-from ...helpers import populate_bone_collection_list
+from ...shared.helpers import populate_bone_collection_list
+from ...shared.ui import draw_bone_filter_mode
 
 
-def is_bone_filter_mode_item_available(context, identifier):
-    input_objects = get_psk_input_objects(context)
-    armature_object = input_objects.armature_object
-    if identifier == 'BONE_COLLECTIONS':
-        if armature_object is None or armature_object.data is None or len(armature_object.data.collections) == 0:
-            return False
-    # else if... you can set up other conditions if you add more options
-    return True
-
-
-def populate_material_list(mesh_objects, material_list):
-    material_list.clear()
-
+def get_materials_for_mesh_objects(depsgraph: Depsgraph, mesh_objects: Iterable[Object]):
     materials = []
     for mesh_object in mesh_objects:
-        for i, material_slot in enumerate(mesh_object.material_slots):
+        evaluated_mesh_object = mesh_object.evaluated_get(depsgraph)
+        for i, material_slot in enumerate(evaluated_mesh_object.material_slots):
             material = material_slot.material
-            # TODO: put this in the poll arg?
             if material is None:
-                message = bpy.app.translations.pgettext_iface('Material slot cannot be empty (index {index})')
-                raise RuntimeError(message.format(index=i))
+                raise RuntimeError('Material slot cannot be empty (index ' + str(i) + ')')
             if material not in materials:
                 materials.append(material)
+    return materials
 
+
+def populate_material_name_list(depsgraph: Depsgraph, mesh_objects, material_list):
+    materials = get_materials_for_mesh_objects(depsgraph, mesh_objects)
+    material_list.clear()
     for index, material in enumerate(materials):
         m = material_list.add()
-        m.material = material
+        m.material_name = material.name
         m.index = index
 
 
+
+def get_collection_from_context(context: Context) -> Optional[Collection]:
+    if context.space_data.type != 'PROPERTIES':
+        return None
+
+    space_data = cast(SpaceProperties, context.space_data)
+
+    if space_data.use_pin_id:
+        return cast(Collection, space_data.pin_id)
+    else:
+        return context.collection
+
+
+def get_collection_export_operator_from_context(context: Context) -> Optional[object]:
+    collection = get_collection_from_context(context)
+    if collection is None:
+        return None
+    if 0 > collection.active_exporter_index >= len(collection.exporters):
+        return None
+    exporter = collection.exporters[collection.active_exporter_index]
+    # TODO: make sure this is actually an ASE exporter.
+    return exporter.export_properties
+
+
+class PSK_OT_populate_bone_collection_list(Operator):
+    bl_idname = 'psk_export.populate_bone_collection_list'
+    bl_label = 'Populate Bone Collection List'
+    bl_description = 'Populate the bone collection list from the armature that will be used in this collection export'
+    bl_options = {'INTERNAL'}
+
+    def execute(self, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No valid export operator found in context')
+            return {'CANCELLED'}
+        input_objects = get_psk_input_objects_for_collection(context.collection)
+        if input_objects.armature_object is None:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No armature found in collection')
+            return {'CANCELLED'}
+        populate_bone_collection_list(input_objects.armature_object, export_operator.bone_collection_list)
+        return {'FINISHED'}
+
+
+class PSK_OT_populate_material_name_list(Operator):
+    bl_idname = 'psk_export.populate_material_name_list'
+    bl_label = 'Populate Material Name List'
+    bl_description = 'Populate the material name list from the objects that will be used in this export'
+    bl_options = {'INTERNAL'}
+
+    def execute(self, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No valid export operator found in context')
+            return {'CANCELLED'}
+        depsgraph = context.evaluated_depsgraph_get()
+        input_objects = get_psk_input_objects_for_collection(context.collection)
+        try:
+            populate_material_name_list(depsgraph, [x.obj for x in input_objects.mesh_objects], export_operator.material_name_list)
+        except RuntimeError as e:
+            self.report({'ERROR_INVALID_CONTEXT'}, str(e))
+            return {'CANCELLED'}
+        return {'FINISHED'}
+
+
 class PSK_OT_material_list_move_up(Operator):
     bl_idname = 'psk_export.material_list_item_move_up'
     bl_label = 'Move Up'
@@ -47,12 +108,12 @@ class PSK_OT_material_list_move_up(Operator):
     @classmethod
     def poll(cls, context):
         pg = getattr(context.scene, 'psk_export')
-        return pg.material_list_index > 0
+        return pg.material_name_list_index > 0
 
     def execute(self, context):
         pg = getattr(context.scene, 'psk_export')
-        pg.material_list.move(pg.material_list_index, pg.material_list_index - 1)
-        pg.material_list_index -= 1
+        pg.material_name_list.move(pg.material_name_list_index, pg.material_name_list_index - 1)
+        pg.material_name_list_index -= 1
         return {'FINISHED'}
 
 
@@ -65,23 +126,203 @@ class PSK_OT_material_list_move_down(Operator):
     @classmethod
     def poll(cls, context):
         pg = getattr(context.scene, 'psk_export')
-        return pg.material_list_index < len(pg.material_list) - 1
+        return pg.material_name_list_index < len(pg.material_name_list) - 1
 
     def execute(self, context):
         pg = getattr(context.scene, 'psk_export')
-        pg.material_list.move(pg.material_list_index, pg.material_list_index + 1)
-        pg.material_list_index += 1
+        pg.material_name_list.move(pg.material_name_list_index, pg.material_name_list_index + 1)
+        pg.material_name_list_index += 1
         return {'FINISHED'}
 
 
+class PSK_OT_material_list_name_move_up(Operator):
+    bl_idname = 'psk_export.material_name_list_item_move_up'
+    bl_label = 'Move Up'
+    bl_options = {'INTERNAL'}
+    bl_description = 'Move the selected material name up one slot'
+
+    @classmethod
+    def poll(cls, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            return False
+        return export_operator.material_name_list_index > 0
+
+    def execute(self, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No valid export operator found in context')
+            return {'CANCELLED'}
+        export_operator.material_name_list.move(export_operator.material_name_list_index, export_operator.material_name_list_index - 1)
+        export_operator.material_name_list_index -= 1
+        return {'FINISHED'}
+
+
+class PSK_OT_material_list_name_move_down(Operator):
+    bl_idname = 'psk_export.material_name_list_item_move_down'
+    bl_label = 'Move Down'
+    bl_options = {'INTERNAL'}
+    bl_description = 'Move the selected material name down one slot'
+
+    @classmethod
+    def poll(cls, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            return False
+        return export_operator.material_name_list_index < len(export_operator.material_name_list) - 1
+
+    def execute(self, context):
+        export_operator = get_collection_export_operator_from_context(context)
+        if export_operator is None:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No valid export operator found in context')
+            return {'CANCELLED'}
+        export_operator.material_name_list.move(export_operator.material_name_list_index, export_operator.material_name_list_index + 1)
+        export_operator.material_name_list_index += 1
+        return {'FINISHED'}
+
+
+empty_set = set()
+
+
+def get_sorted_materials_by_names(materials: Iterable[Material], material_names: List[str]) -> List[Material]:
+    """
+    Sorts the materials by the order of the material names list. Any materials not in the list will be appended to the
+    end of the list in the order they are found.
+    @param materials: A list of materials to sort
+    @param material_names: A list of material names to sort by
+    @return: A sorted list of materials
+    """
+    materials_in_collection = [m for m in materials if m.name in material_names]
+    materials_not_in_collection = [m for m in materials if m.name not in material_names]
+    materials_in_collection = sorted(materials_in_collection, key=lambda x: material_names.index(x.name))
+    return materials_in_collection + materials_not_in_collection
+
+
+def get_psk_build_options_from_property_group(mesh_objects: Iterable[Object],  pg: 'PSK_PG_export', depsgraph: Optional[Depsgraph] = None) -> PskBuildOptions:
+    if depsgraph is None:
+        depsgraph = bpy.context.evaluated_depsgraph_get()
+
+    options = PskBuildOptions()
+    options.object_eval_state = pg.object_eval_state
+    options.export_space = pg.export_space
+    options.bone_filter_mode = pg.bone_filter_mode
+    options.bone_collection_indices = [x.index for x in pg.bone_collection_list if x.is_selected]
+    options.scale = pg.scale
+    options.forward_axis = pg.forward_axis
+    options.up_axis = pg.up_axis
+
+    # TODO: perhaps move this into the build function and replace the materials list with a material names list.
+    materials = get_materials_for_mesh_objects(depsgraph, mesh_objects)
+    options.materials = get_sorted_materials_by_names(materials, [m.material_name for m in pg.material_name_list])
+
+    return options
+
+
+class PSK_OT_export_collection(Operator, ExportHelper):
+    bl_idname = 'export.psk_collection'
+    bl_label = 'Export'
+    bl_options = {'INTERNAL'}
+    filename_ext = '.psk'
+    filter_glob: StringProperty(default='*.psk', options={'HIDDEN'})
+    filepath: StringProperty(
+        name='File Path',
+        description='File path used for exporting the PSK file',
+        maxlen=1024,
+        default='',
+        subtype='FILE_PATH')
+    collection: StringProperty(options={'HIDDEN'})
+
+    def execute(self, context):
+        collection = bpy.data.collections.get(self.collection)
+
+        try:
+            input_objects = get_psk_input_objects_for_collection(collection, self.should_exclude_hidden_meshes)
+        except RuntimeError as e:
+            self.report({'ERROR_INVALID_CONTEXT'}, str(e))
+            return {'CANCELLED'}
+
+        options = get_psk_build_options_from_property_group([x.obj for x in input_objects.mesh_objects], self)
+
+        try:
+            result = build_psk(context, input_objects, options)
+            for warning in result.warnings:
+                self.report({'WARNING'}, warning)
+            write_psk(result.psk, self.filepath)
+            if len(result.warnings) > 0:
+                self.report({'WARNING'}, f'PSK export successful with {len(result.warnings)} warnings')
+            else:
+                self.report({'INFO'}, f'PSK export successful')
+        except RuntimeError as e:
+            self.report({'ERROR_INVALID_CONTEXT'}, str(e))
+            return {'CANCELLED'}
+
+        return {'FINISHED'}
+
+    def draw(self, context: Context):
+        layout = self.layout
+
+        flow = layout.grid_flow(row_major=True)
+        flow.use_property_split = True
+        flow.use_property_decorate = False
+
+        # MESH
+        mesh_header, mesh_panel = layout.panel('Mesh', default_closed=False)
+        mesh_header.label(text='Mesh', icon='MESH_DATA')
+        if mesh_panel:
+            flow = mesh_panel.grid_flow(row_major=True)
+            flow.use_property_split = True
+            flow.use_property_decorate = False
+            flow.prop(self, 'object_eval_state', text='Data')
+            flow.prop(self, 'should_exclude_hidden_meshes')
+
+        # BONES
+        bones_header, bones_panel = layout.panel('Bones', default_closed=False)
+        bones_header.label(text='Bones', icon='BONE_DATA')
+        if bones_panel:
+            draw_bone_filter_mode(bones_panel, self)
+            if self.bone_filter_mode == 'BONE_COLLECTIONS':
+                bones_panel.operator(PSK_OT_populate_bone_collection_list.bl_idname, icon='FILE_REFRESH')
+                rows = max(3, min(len(self.bone_collection_list), 10))
+                bones_panel.template_list('PSX_UL_bone_collection_list', '', self, 'bone_collection_list', self, 'bone_collection_list_index', rows=rows)
+
+        # MATERIALS
+        materials_header, materials_panel = layout.panel('Materials', default_closed=False)
+        materials_header.label(text='Materials', icon='MATERIAL')
+
+        if materials_panel:
+            materials_panel.operator(PSK_OT_populate_material_name_list.bl_idname, icon='FILE_REFRESH')
+            rows = max(3, min(len(self.material_name_list), 10))
+            row = materials_panel.row()
+            row.template_list('PSK_UL_material_names', '', self, 'material_name_list', self, 'material_name_list_index', rows=rows)
+            col = row.column(align=True)
+            col.operator(PSK_OT_material_list_name_move_up.bl_idname, text='', icon='TRIA_UP')
+            col.operator(PSK_OT_material_list_name_move_down.bl_idname, text='', icon='TRIA_DOWN')
+
+        # TRANSFORM
+        transform_header, transform_panel = layout.panel('Transform', default_closed=False)
+        transform_header.label(text='Transform')
+        if transform_panel:
+            flow = transform_panel.grid_flow(row_major=True)
+            flow.use_property_split = True
+            flow.use_property_decorate = False
+            flow.prop(self, 'export_space')
+            flow.prop(self, 'scale')
+            flow.prop(self, 'forward_axis')
+            flow.prop(self, 'up_axis')
+
+
+
+add_psk_export_properties(PSK_OT_export_collection)
+
+
+
 class PSK_OT_export(Operator, ExportHelper):
     bl_idname = 'export.psk'
     bl_label = 'Export'
     bl_options = {'INTERNAL', 'UNDO'}
-    __doc__ = 'Export mesh and armature to PSK'
+    bl_description = 'Export mesh and armature to PSK'
     filename_ext = '.psk'
     filter_glob: StringProperty(default='*.psk', options={'HIDDEN'})
-
     filepath: StringProperty(
         name='File Path',
         description='File path used for exporting the PSK file',
@@ -90,17 +331,23 @@ class PSK_OT_export(Operator, ExportHelper):
 
     def invoke(self, context, event):
         try:
-            input_objects = get_psk_input_objects(context)
+            input_objects = get_psk_input_objects_for_context(context)
         except RuntimeError as e:
             self.report({'ERROR_INVALID_CONTEXT'}, str(e))
             return {'CANCELLED'}
 
+        if len(input_objects.mesh_objects) == 0:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No mesh objects selected')
+            return {'CANCELLED'}
+
         pg = getattr(context.scene, 'psk_export')
 
         populate_bone_collection_list(input_objects.armature_object, pg.bone_collection_list)
 
+        depsgraph = context.evaluated_depsgraph_get()
+
         try:
-            populate_material_list(input_objects.mesh_objects, pg.material_list)
+            populate_material_name_list(depsgraph, [x.obj for x in input_objects.mesh_objects], pg.material_name_list)
         except RuntimeError as e:
             self.report({'ERROR_INVALID_CONTEXT'}, str(e))
             return {'CANCELLED'}
@@ -109,72 +356,54 @@ class PSK_OT_export(Operator, ExportHelper):
 
         return {'RUNNING_MODAL'}
 
-    @classmethod
-    def poll(cls, context):
-        try:
-            get_psk_input_objects(context)
-        except RuntimeError as e:
-            cls.poll_message_set(str(e))
-            return False
-        return True
-
     def draw(self, context):
         layout = self.layout
+
         pg = getattr(context.scene, 'psk_export')
 
         # MESH
-        mesh_header, mesh_panel = layout.panel('mesh_panel_id', default_closed=False)
+        mesh_header, mesh_panel = layout.panel('Mesh', default_closed=False)
         mesh_header.label(text='Mesh', icon='MESH_DATA')
-        if mesh_panel is not None:
-            mesh_panel.prop(pg, 'use_raw_mesh_data')
+        if mesh_panel:
+            flow = mesh_panel.grid_flow(row_major=True)
+            flow.use_property_split = True
+            flow.use_property_decorate = False
+            flow.prop(pg, 'object_eval_state', text='Data')
 
         # BONES
-        bones_header, bones_panel = layout.panel('bones_panel_id', default_closed=False)
+        bones_header, bones_panel = layout.panel('Bones', default_closed=False)
         bones_header.label(text='Bones', icon='BONE_DATA')
-        if bones_panel is not None:
-            bone_filter_mode_items = pg.bl_rna.properties['bone_filter_mode'].enum_items_static
-            row = bones_panel.row(align=True)
-            for item in bone_filter_mode_items:
-                identifier = item.identifier
-                item_layout = row.row(align=True)
-                item_layout.prop_enum(pg, 'bone_filter_mode', item.identifier)
-                item_layout.enabled = is_bone_filter_mode_item_available(context, identifier)
-
+        if bones_panel:
+            draw_bone_filter_mode(bones_panel, pg)
             if pg.bone_filter_mode == 'BONE_COLLECTIONS':
                 row = bones_panel.row()
                 rows = max(3, min(len(pg.bone_collection_list), 10))
                 row.template_list('PSX_UL_bone_collection_list', '', pg, 'bone_collection_list', pg, 'bone_collection_list_index', rows=rows)
 
-            bones_panel.prop(pg, 'should_enforce_bone_name_restrictions')
-
         # MATERIALS
-        materials_header, materials_panel = layout.panel('materials_panel_id', default_closed=False)
+        materials_header, materials_panel = layout.panel('Materials', default_closed=False)
         materials_header.label(text='Materials', icon='MATERIAL')
-        if materials_panel is not None:
+        if materials_panel:
             row = materials_panel.row()
             rows = max(3, min(len(pg.bone_collection_list), 10))
-            row.template_list('PSK_UL_materials', '', pg, 'material_list', pg, 'material_list_index', rows=rows)
+            row.template_list('PSK_UL_material_names', '', pg, 'material_name_list', pg, 'material_name_list_index', rows=rows)
             col = row.column(align=True)
             col.operator(PSK_OT_material_list_move_up.bl_idname, text='', icon='TRIA_UP')
             col.operator(PSK_OT_material_list_move_down.bl_idname, text='', icon='TRIA_DOWN')
 
     def execute(self, context):
-        pg = context.scene.psk_export
-        options = PskBuildOptions()
-        options.bone_filter_mode = pg.bone_filter_mode
-        options.bone_collection_indices = [x.index for x in pg.bone_collection_list if x.is_selected]
-        options.use_raw_mesh_data = pg.use_raw_mesh_data
-        options.materials = [m.material for m in pg.material_list]
-        options.should_enforce_bone_name_restrictions = pg.should_enforce_bone_name_restrictions
+        pg = getattr(context.scene, 'psk_export')
+
+        input_objects = get_psk_input_objects_for_context(context)
+        options = get_psk_build_options_from_property_group([x.obj for x in input_objects.mesh_objects], pg)
 
         try:
-            result = build_psk(context, options)
+            result = build_psk(context, input_objects, options)
             for warning in result.warnings:
                 self.report({'WARNING'}, warning)
             write_psk(result.psk, self.filepath)
             if len(result.warnings) > 0:
-                message = bpy.app.translations.pgettext_iface('PSK export successful with {warning_count} warnings')
-                self.report({'WARNING'}, message.format(warning_count=len(result.warnings)))
+                self.report({'WARNING'}, f'PSK export successful with {len(result.warnings)} warnings')
             else:
                 self.report({'INFO'}, f'PSK export successful')
         except RuntimeError as e:
@@ -188,4 +417,9 @@ classes = (
     PSK_OT_material_list_move_up,
     PSK_OT_material_list_move_down,
     PSK_OT_export,
+    PSK_OT_export_collection,
+    PSK_OT_populate_bone_collection_list,
+    PSK_OT_populate_material_name_list,
+    PSK_OT_material_list_name_move_up,
+    PSK_OT_material_list_name_move_down,
 )

io_scene_psk_psa/psk/export/properties.py

@@ -1,40 +1,126 @@
-from bpy.props import EnumProperty, CollectionProperty, IntProperty, BoolProperty, PointerProperty
+from bpy.props import EnumProperty, CollectionProperty, IntProperty, PointerProperty, FloatProperty, StringProperty, \
+    BoolProperty
 from bpy.types import PropertyGroup, Material
 
-from ...types import PSX_PG_bone_collection_list_item
+from ...shared.data import bone_filter_mode_items
+from ...shared.types import PSX_PG_bone_collection_list_item
 
 empty_set = set()
 
+object_eval_state_items = (
+    ('EVALUATED', 'Evaluated', 'Use data from fully evaluated object'),
+    ('ORIGINAL', 'Original', 'Use data from original object with no modifiers applied'),
+)
+
+export_space_items = [
+    ('WORLD', 'World', 'Export in world space'),
+    ('ARMATURE', 'Armature', 'Export in armature space'),
+]
+
+
+axis_identifiers = ('X', 'Y', 'Z', '-X', '-Y', '-Z')
+forward_items = (
+    ('X', 'X Forward', ''),
+    ('Y', 'Y Forward', ''),
+    ('Z', 'Z Forward', ''),
+    ('-X', '-X Forward', ''),
+    ('-Y', '-Y Forward', ''),
+    ('-Z', '-Z Forward', ''),
+)
+
+up_items = (
+    ('X', 'X Up', ''),
+    ('Y', 'Y Up', ''),
+    ('Z', 'Z Up', ''),
+    ('-X', '-X Up', ''),
+    ('-Y', '-Y Up', ''),
+    ('-Z', '-Z Up', ''),
+)
+
 class PSK_PG_material_list_item(PropertyGroup):
     material: PointerProperty(type=Material)
     index: IntProperty()
 
+class PSK_PG_material_name_list_item(PropertyGroup):
+    material_name: StringProperty()
+    index: IntProperty()
+
+
+
+
+def forward_axis_update(self, _context):
+    if self.forward_axis == self.up_axis:
+        # Automatically set the up axis to the next available axis
+        self.up_axis = next((axis for axis in axis_identifiers if axis != self.forward_axis), 'Z')
+
+
+def up_axis_update(self, _context):
+    if self.up_axis == self.forward_axis:
+        # Automatically set the forward axis to the next available axis
+        self.forward_axis = next((axis for axis in axis_identifiers if axis != self.up_axis), 'X')
+
+
+
+# In order to share the same properties between the PSA and PSK export properties, we need to define the properties in a
+# separate function and then apply them to the classes. This is because the collection exporter cannot have
+# PointerProperties, so we must effectively duplicate the storage of the properties.
+def add_psk_export_properties(cls):
+        cls.__annotations__['object_eval_state'] = EnumProperty(
+            items=object_eval_state_items,
+            name='Object Evaluation State',
+            default='EVALUATED'
+        )
+        cls.__annotations__['should_exclude_hidden_meshes'] = BoolProperty(
+            default=False,
+            name='Visible Only',
+            description='Export only visible meshes'
+        )
+        cls.__annotations__['scale'] = FloatProperty(
+            name='Scale',
+            default=1.0,
+            description='Scale factor to apply to the exported mesh and armature',
+            min=0.0001,
+            soft_max=100.0
+        )
+        cls.__annotations__['export_space'] = EnumProperty(
+            name='Export Space',
+            description='Space to export the mesh in',
+            items=export_space_items,
+            default='WORLD'
+        )
+        cls.__annotations__['bone_filter_mode'] = EnumProperty(
+            name='Bone Filter',
+            options=empty_set,
+            description='',
+            items=bone_filter_mode_items,
+        )
+        cls.__annotations__['bone_collection_list'] = CollectionProperty(type=PSX_PG_bone_collection_list_item)
+        cls.__annotations__['bone_collection_list_index'] = IntProperty(default=0)
+        cls.__annotations__['forward_axis'] = EnumProperty(
+            name='Forward',
+            items=forward_items,
+            default='X',
+            update=forward_axis_update
+        )
+        cls.__annotations__['up_axis'] = EnumProperty(
+            name='Up',
+            items=up_items,
+            default='Z',
+            update=up_axis_update
+        )
+        cls.__annotations__['material_name_list'] = CollectionProperty(type=PSK_PG_material_name_list_item)
+        cls.__annotations__['material_name_list_index'] = IntProperty(default=0)
+
 
 class PSK_PG_export(PropertyGroup):
-    bone_filter_mode: EnumProperty(
-        name='Bone Filter',
-        options=empty_set,
-        description='',
-        items=(
-            ('ALL', 'All', 'All bones will be exported'),
-            ('BONE_COLLECTIONS', 'Bone Collections',
-             'Only bones belonging to the selected bone collections and their ancestors will be exported')
-        )
-    )
-    bone_collection_list: CollectionProperty(type=PSX_PG_bone_collection_list_item)
-    bone_collection_list_index: IntProperty(default=0)
-    use_raw_mesh_data: BoolProperty(default=False, name='Raw Mesh Data', description='No modifiers will be evaluated as part of the exported mesh')
-    material_list: CollectionProperty(type=PSK_PG_material_list_item)
-    material_list_index: IntProperty(default=0)
-    should_enforce_bone_name_restrictions: BoolProperty(
-        default=False,
-        name='Enforce Bone Name Restrictions',
-        description='Enforce that bone names must only contain letters, numbers, spaces, hyphens and underscores.\n\n'
-                    'Depending on the engine, improper bone names might not be referenced correctly by scripts'
-    )
+    pass
+
+
+add_psk_export_properties(PSK_PG_export)
 
 
 classes = (
     PSK_PG_material_list_item,
+    PSK_PG_material_name_list_item,
     PSK_PG_export,
 )

io_scene_psk_psa/psk/export/ui.py

@@ -1,12 +1,14 @@
+import bpy
 from bpy.types import UIList
 
 
-class PSK_UL_materials(UIList):
+class PSK_UL_material_names(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
         row = layout.row()
-        row.prop(item.material, 'name', text='', emboss=False, icon_value=layout.icon(item.material))
+        material = bpy.data.materials.get(item.material_name, None)
+        row.prop(item, 'material_name', text='', emboss=False, icon_value=layout.icon(material) if material else 0)
 
 
 classes = (
-    PSK_UL_materials,
+    PSK_UL_material_names,
 )

io_scene_psk_psa/psk/import_/operators.py

@@ -1,7 +1,6 @@
 import os
 import sys
 
-import bpy.app.translations
 from bpy.props import StringProperty, BoolProperty, EnumProperty, FloatProperty
 from bpy.types import Operator, FileHandler, Context
 from bpy_extras.io_utils import ImportHelper
@@ -14,8 +13,9 @@ empty_set = set()
 
 class PSK_FH_import(FileHandler):
     bl_idname = 'PSK_FH_import'
-    bl_label = ''
+    bl_label = 'Unreal PSK'
     bl_import_operator = 'import_scene.psk'
+    bl_export_operator = 'export.psk_collection'
     bl_file_extensions = '.psk;.pskx'
 
     @classmethod
@@ -27,7 +27,7 @@ class PSK_OT_import(Operator, ImportHelper):
     bl_idname = 'import_scene.psk'
     bl_label = 'Import'
     bl_options = {'INTERNAL', 'UNDO', 'PRESET'}
-    __doc__ = 'Load a PSK file'
+    bl_description = 'Import a PSK file'
     filename_ext = '.psk'
     filter_glob: StringProperty(default='*.psk;*.pskx', options={'HIDDEN'})
     filepath: StringProperty(
@@ -62,22 +62,24 @@ class PSK_OT_import(Operator, ImportHelper):
         default=True,
         name='Import Extra UVs',
         options=empty_set,
-        description='Import extra UVs, if available'
+        description='Import extra UV maps, if available'
     )
     should_import_mesh: BoolProperty(
         default=True,
-        name='Mesh',
-        options=empty_set
+        name='Import Mesh',
+        options=empty_set,
+        description='Import mesh'
     )
     should_import_materials: BoolProperty(
         default=True,
-        name='Materials',
+        name='Import Materials',
         options=empty_set,
     )
     should_import_skeleton: BoolProperty(
         default=True,
-        name='Armature',
-        options=empty_set
+        name='Import Skeleton',
+        options=empty_set,
+        description='Import skeleton'
     )
     bone_length: FloatProperty(
         default=1.0,
@@ -86,7 +88,8 @@ class PSK_OT_import(Operator, ImportHelper):
         soft_min=1.0,
         name='Bone Length',
         options=empty_set,
-        subtype='DISTANCE'
+        subtype='DISTANCE',
+        description='Length of the bones'
     )
     should_import_shape_keys: BoolProperty(
         default=True,
@@ -99,6 +102,12 @@ class PSK_OT_import(Operator, ImportHelper):
         default=1.0,
         soft_min=0.0,
     )
+    bdk_repository_id: StringProperty(
+        name='BDK Repository ID',
+        default='',
+        options=empty_set,
+        description='The ID of the BDK repository to use for loading materials'
+    )
 
     def execute(self, context):
         psk = read_psk(self.filepath)
@@ -116,6 +125,9 @@ class PSK_OT_import(Operator, ImportHelper):
         options.should_import_shape_keys = self.should_import_shape_keys
         options.scale = self.scale
 
+        if self.bdk_repository_id:
+            options.bdk_repository_id = self.bdk_repository_id
+
         if not options.should_import_mesh and not options.should_import_skeleton:
             self.report({'ERROR'}, 'Nothing to import')
             return {'CANCELLED'}
@@ -123,14 +135,11 @@ class PSK_OT_import(Operator, ImportHelper):
         result = import_psk(psk, context, options)
 
         if len(result.warnings):
-            message = bpy.app.translations.pgettext_iface('PSK imported with {count} warning(s)')
-            message = message.format(count=len(result.warnings))
+            message = f'PSK imported with {len(result.warnings)} warning(s)\n'
             message += '\n'.join(result.warnings)
             self.report({'WARNING'}, message)
         else:
-            message = bpy.app.translations.pgettext_iface('PSK imported ({name})')
-            message = message.format(name=options.name)
-            self.report({'INFO'}, message)
+            self.report({'INFO'}, f'PSK imported ({options.name})')
 
         return {'FINISHED'}
 
@@ -143,6 +152,7 @@ class PSK_OT_import(Operator, ImportHelper):
         col.use_property_split = True
         col.use_property_decorate = False
         col.prop(self, 'scale')
+        col.prop(self, 'export_space')
 
         mesh_header, mesh_panel = layout.panel('mesh_panel_id', default_closed=False)
         mesh_header.prop(self, 'should_import_mesh')

io_scene_psk_psa/psk/importer.py

@@ -8,7 +8,7 @@ from mathutils import Quaternion, Vector, Matrix
 
 from .data import Psk
 from .properties import poly_flags_to_triangle_type_and_bit_flags
-from ..helpers import rgb_to_srgb, is_bdk_addon_loaded
+from ..shared.helpers import rgb_to_srgb, is_bdk_addon_loaded
 
 
 class PskImportOptions:
@@ -25,12 +25,13 @@ class PskImportOptions:
         self.bone_length = 1.0
         self.should_import_materials = True
         self.scale = 1.0
+        self.bdk_repository_id = None
 
 
 class ImportBone:
-    """
+    '''
     Intermediate bone type for the purpose of construction.
-    """
+    '''
     def __init__(self, index: int, psk_bone: Psk.Bone):
         self.index: int = index
         self.psk_bone: Psk.Bone = psk_bone
@@ -130,7 +131,8 @@ def import_psk(psk: Psk, context, options: PskImportOptions) -> PskImportResult:
                     # Material does not yet exist, and we have the BDK addon installed.
                     # Attempt to load it using BDK addon's operator.
                     material_reference = psk.material_references[material_index]
-                    if material_reference and bpy.ops.bdk.link_material(reference=material_reference) == {'FINISHED'}:
+                    repository_id = options.bdk_repository_id if options.bdk_repository_id is not None else ''
+                    if material_reference and bpy.ops.bdk.link_material(reference=material_reference, repository_id=repository_id) == {'FINISHED'}:
                         material = bpy.data.materials[material_name]
                 else:
                     # Just create a blank material.
@@ -165,14 +167,13 @@ def import_psk(psk: Psk, context, options: PskImportOptions) -> PskImportResult:
 
         # TODO: Handle invalid faces better.
         if len(invalid_face_indices) > 0:
-            message = bpy.app.translations.pgettext_iface('Discarded {count} invalid face(s)')
-            result.warnings.append(message.format(count=len(invalid_face_indices)))
+            result.warnings.append(f'Discarded {len(invalid_face_indices)} invalid face(s).')
 
         bm.to_mesh(mesh_data)
 
         # TEXTURE COORDINATES
         uv_layer_data_index = 0
-        uv_layer = mesh_data.uv_layers.new(name='VTXW0000')
+        uv_layer = mesh_data.uv_layers.new(name='UVMap')
         for face_index, face in enumerate(psk.faces):
             if face_index in invalid_face_indices:
                 continue

io_scene_psk_psa/psk/properties.py

@@ -2,19 +2,19 @@ from bpy.props import EnumProperty
 from bpy.types import PropertyGroup
 
 mesh_triangle_types_items = (
-    ('NORMAL', 'Normal', '', 0),
-    ('NORMAL_TWO_SIDED', 'Normal Two-Sided', '', 1),
-    ('TRANSLUCENT', 'Translucent', '', 2),
-    ('MASKED', 'Masked', '', 3),
-    ('MODULATE', 'Modulate', '', 4),
-    ('PLACEHOLDER', 'Placeholder', '', 8),
+    ('NORMAL', 'Normal', 'Normal one-sided', 0),
+    ('NORMAL_TWO_SIDED', 'Normal Two-Sided', 'Normal but two-sided', 1),
+    ('TRANSLUCENT', 'Translucent', 'Translucent two-sided', 2),
+    ('MASKED', 'Masked', 'Masked two-sided', 3),
+    ('MODULATE', 'Modulate', 'Modulation blended two-sided', 4),
+    ('PLACEHOLDER', 'Placeholder', 'Placeholder triangle for positioning weapon. Invisible', 8),
 )
 
 mesh_triangle_bit_flags_items = (
-    ('UNLIT', 'Unlit', '', 16),
-    ('FLAT', 'Flat', '', 32),
-    ('ENVIRONMENT', 'Environment', '', 64),
-    ('NO_SMOOTH', 'No Smooth', '', 128),
+    ('UNLIT', 'Unlit', 'Full brightness, no lighting', 16),
+    ('FLAT', 'Flat', 'Flat surface, don\'t do bMeshCurvy thing', 32),
+    ('ENVIRONMENT', 'Environment', 'Environment mapped', 64),
+    ('NO_SMOOTH', 'No Smooth', 'No bilinear filtering on this poly\'s texture', 128),
 )
 
 class PSX_PG_material(PropertyGroup):

io_scene_psk_psa/psk/reader.py

@@ -1,10 +1,9 @@
 import ctypes
+import os
 import re
 import warnings
 from pathlib import Path
 
-import bpy.app.translations
-
 from .data import *
 
 
@@ -37,42 +36,43 @@ def read_psk(path: str) -> Psk:
         while fp.read(1):
             fp.seek(-1, 1)
             section = Section.from_buffer_copy(fp.read(ctypes.sizeof(Section)))
-            if section.name == b'ACTRHEAD':
-                pass
-            elif section.name == b'PNTS0000':
-                _read_types(fp, Vector3, section, psk.points)
-            elif section.name == b'VTXW0000':
-                if section.data_size == ctypes.sizeof(Psk.Wedge16):
-                    _read_types(fp, Psk.Wedge16, section, psk.wedges)
-                elif section.data_size == ctypes.sizeof(Psk.Wedge32):
-                    _read_types(fp, Psk.Wedge32, section, psk.wedges)
-                else:
-                    raise RuntimeError('Unrecognized wedge format')
-            elif section.name == b'FACE0000':
-                _read_types(fp, Psk.Face, section, psk.faces)
-            elif section.name == b'MATT0000':
-                _read_types(fp, Psk.Material, section, psk.materials)
-            elif section.name == b'REFSKELT':
-                _read_types(fp, Psk.Bone, section, psk.bones)
-            elif section.name == b'RAWWEIGHTS':
-                _read_types(fp, Psk.Weight, section, psk.weights)
-            elif section.name == b'FACE3200':
-                _read_types(fp, Psk.Face32, section, psk.faces)
-            elif section.name == b'VERTEXCOLOR':
-                _read_types(fp, Color, section, psk.vertex_colors)
-            elif section.name.startswith(b'EXTRAUVS'):
-                _read_types(fp, Vector2, section, psk.extra_uvs)
-            elif section.name == b'VTXNORMS':
-                _read_types(fp, Vector3, section, psk.vertex_normals)
-            elif section.name == b'MRPHINFO':
-                _read_types(fp, Psk.MorphInfo, section, psk.morph_infos)
-            elif section.name == b'MRPHDATA':
-                _read_types(fp, Psk.MorphData, section, psk.morph_data)
-            else:
-                # Section is not handled, skip it.
-                message: str = bpy.app.translations.pgettext_iface('Unhandled section "{section_name}" at position {position}')
-                message.format(section_name=section.name, position=f'{fp.tell():15}')
-                warnings.warn(message)
+            match section.name:
+                case b'ACTRHEAD':
+                    pass
+                case b'PNTS0000':
+                    _read_types(fp, Vector3, section, psk.points)
+                case b'VTXW0000':
+                    if section.data_size == ctypes.sizeof(Psk.Wedge16):
+                        _read_types(fp, Psk.Wedge16, section, psk.wedges)
+                    elif section.data_size == ctypes.sizeof(Psk.Wedge32):
+                        _read_types(fp, Psk.Wedge32, section, psk.wedges)
+                    else:
+                        raise RuntimeError('Unrecognized wedge format')
+                case b'FACE0000':
+                    _read_types(fp, Psk.Face, section, psk.faces)
+                case b'MATT0000':
+                    _read_types(fp, Psk.Material, section, psk.materials)
+                case b'REFSKELT':
+                    _read_types(fp, Psk.Bone, section, psk.bones)
+                case b'RAWWEIGHTS':
+                    _read_types(fp, Psk.Weight, section, psk.weights)
+                case b'FACE3200':
+                    _read_types(fp, Psk.Face32, section, psk.faces)
+                case b'VERTEXCOLOR':
+                    _read_types(fp, Color, section, psk.vertex_colors)
+                case b'VTXNORMS':
+                    _read_types(fp, Vector3, section, psk.vertex_normals)
+                case b'MRPHINFO':
+                    _read_types(fp, Psk.MorphInfo, section, psk.morph_infos)
+                case b'MRPHDATA':
+                    _read_types(fp, Psk.MorphData, section, psk.morph_data)
+                case _:
+                    if section.name.startswith(b'EXTRAUVS'):
+                        _read_types(fp, Vector2, section, psk.extra_uvs)
+                    else:
+                        # Section is not handled, skip it.
+                        fp.seek(section.data_size * section.data_count, os.SEEK_CUR)
+                        warnings.warn(f'Unrecognized section "{section.name} at position {fp.tell():15}"')
 
     '''
     UEViewer exports a sidecar file (*.props.txt) with fully-qualified reference paths for each material
@@ -80,14 +80,14 @@ def read_psk(path: str) -> Psk:
     '''
     psk.material_references = _read_material_references(path)
 
-    """
+    '''
     Tools like UEViewer and CUE4Parse write the point index as a 32-bit integer, exploiting the fact that due to struct
     alignment, there were 16-bits of padding following the original 16-bit point index in the wedge struct.
     However, this breaks compatibility with PSK files that were created with older tools that treated the
     point index as a 16-bit integer and might have junk data written to the padding bits.
     To work around this, we check if each point is still addressable using a 16-bit index, and if it is, assume the
     point index is a 16-bit integer and truncate the high bits.
-    """
+    '''
     if len(psk.points) <= 65536:
         for wedge in psk.wedges:
             wedge.point_index &= 0xFFFF

io_scene_psk_psa/psk/writer.py

@@ -1,10 +1,9 @@
+import os
 from ctypes import Structure, sizeof
 from typing import Type
 
-import bpy.app.translations
-
 from .data import Psk
-from ..data import Section, Vector3
+from ..shared.data import Section, Vector3
 
 MAX_WEDGE_COUNT = 65536
 MAX_POINT_COUNT = 4294967296
@@ -26,20 +25,18 @@ def _write_section(fp, name: bytes, data_type: Type[Structure] = None, data: lis
 
 def write_psk(psk: Psk, path: str):
     if len(psk.wedges) > MAX_WEDGE_COUNT:
-        message = bpy.app.translations.pgettext_iface('Number of wedges ({wedge_count}) exceeds limit of {MAX_WEDGE_COUNT}')
-        raise RuntimeError(message.format(wedge_count=len(psk.wedges), MAX_WEDGE_COUNT=MAX_WEDGE_COUNT))
+        raise RuntimeError(f'Number of wedges ({len(psk.wedges)}) exceeds limit of {MAX_WEDGE_COUNT}')
     if len(psk.points) > MAX_POINT_COUNT:
-        message = bpy.app.translations.pgettext_iface('Numbers of vertices ({point_count}) exceeds limit of {MAX_POINT_COUNT}')
-        raise RuntimeError(message.format(point_count=len(psk.points), MAX_POINT_COUNT=MAX_POINT_COUNT))
+        raise RuntimeError(f'Numbers of vertices ({len(psk.points)}) exceeds limit of {MAX_POINT_COUNT}')
     if len(psk.materials) > MAX_MATERIAL_COUNT:
-        message = bpy.app.translations.pgettext_iface('Number of materials ({material_count}) exceeds limit of {MAX_MATERIAL_COUNT}')
-        raise RuntimeError(message.format(material_count=len(psk.materials), MAX_MATERIAL_COUNT=MAX_MATERIAL_COUNT))
+        raise RuntimeError(f'Number of materials ({len(psk.materials)}) exceeds limit of {MAX_MATERIAL_COUNT}')
     if len(psk.bones) > MAX_BONE_COUNT:
-        message = bpy.app.translations.pgettext_iface('Number of bones ({bone_count}) exceeds limit of {MAX_BONE_COUNT}')
-        raise RuntimeError(message.format(bone_count=len(psk.bones), MAX_BONE_COUNT=MAX_BONE_COUNT))
+        raise RuntimeError(f'Number of bones ({len(psk.bones)}) exceeds limit of {MAX_BONE_COUNT}')
     elif len(psk.bones) == 0:
-        message = bpy.app.translations.pgettext_iface('At least one bone must be marked for export')
-        raise RuntimeError(message)
+        raise RuntimeError(f'At least one bone must be marked for export')
+
+    # Make the directory for the file if it doesn't exist.
+    os.makedirs(os.path.dirname(path), exist_ok=True)
 
     with open(path, 'wb') as fp:
         _write_section(fp, b'ACTRHEAD')

io_scene_psk_psa/shared/data.py

@@ -93,3 +93,9 @@ class Section(Structure):
     def __init__(self, *args, **kw):
         super().__init__(*args, **kw)
         self.type_flags = 1999801
+
+
+bone_filter_mode_items = (
+    ('ALL', 'All', 'All bones will be exported'),
+    ('BONE_COLLECTIONS', 'Bone Collections', 'Only bones belonging to the selected bone collections and their ancestors will be exported')
+)

io_scene_psk_psa/shared/dfs.py

@@ -0,0 +1,155 @@
+'''
+Depth-first object iterator functions for Blender collections and view layers.
+
+These functions are used to iterate over objects in a collection or view layer in a depth-first manner, including
+instances. This is useful for exporters that need to traverse the object hierarchy in a predictable order.
+'''
+
+from typing import Optional, Set, Iterable, List
+
+from bpy.types import Collection, Object, ViewLayer, LayerCollection
+from mathutils import Matrix
+
+
+class DfsObject:
+    '''
+    Represents an object in a depth-first search.
+    '''
+    def __init__(self, obj: Object, instance_objects: List[Object], matrix_world: Matrix):
+        self.obj = obj
+        self.instance_objects = instance_objects
+        self.matrix_world = matrix_world
+
+    @property
+    def is_visible(self) -> bool:
+        '''
+        Check if the object is visible.
+        @return: True if the object is visible, False otherwise.
+        '''
+        if self.instance_objects:
+            return self.instance_objects[-1].visible_get()
+        return self.obj.visible_get()
+
+    @property
+    def is_selected(self) -> bool:
+        '''
+        Check if the object is selected.
+        @return: True if the object is selected, False otherwise.
+        '''
+        if self.instance_objects:
+            return self.instance_objects[-1].select_get()
+        return self.obj.select_get()
+
+
+
+def _dfs_object_children(obj: Object, collection: Collection) -> Iterable[Object]:
+    '''
+    Construct a list of objects in hierarchy order from `collection.objects`, only keeping those that are in the
+    collection.
+    @param obj: The object to start the search from.
+    @param collection:  The collection to search in.
+    @return: An iterable of objects in hierarchy order.
+    '''
+    yield obj
+    for child in obj.children:
+        if child.name in collection.objects:
+            yield from _dfs_object_children(child, collection)
+
+
+def dfs_objects_in_collection(collection: Collection) -> Iterable[Object]:
+    '''
+    Returns a depth-first iterator over all objects in a collection, only keeping those that are directly in the
+    collection.
+    @param collection: The collection to search in.
+    @return: An iterable of objects in hierarchy order.
+    '''
+    objects_hierarchy = []
+    for obj in collection.objects:
+        if obj.parent is None or obj.parent not in set(collection.objects):
+            objects_hierarchy.append(obj)
+    for obj in objects_hierarchy:
+        yield from _dfs_object_children(obj, collection)
+
+
+def dfs_collection_objects(collection: Collection, visible_only: bool = False) -> Iterable[DfsObject]:
+    '''
+    Depth-first search of objects in a collection, including recursing into instances.
+    @param collection: The collection to search in.
+    @return: An iterable of tuples containing the object, the instance objects, and the world matrix.
+    '''
+    yield from _dfs_collection_objects_recursive(collection)
+
+
+def _dfs_collection_objects_recursive(
+        collection: Collection,
+        instance_objects: Optional[List[Object]] = None,
+        matrix_world: Matrix = Matrix.Identity(4),
+        visited: Optional[Set[Object]]=None
+) -> Iterable[DfsObject]:
+    '''
+    Depth-first search of objects in a collection, including recursing into instances.
+    This is a recursive function.
+    @param collection: The collection to search in.
+    @param instance_objects: The running hierarchy of instance objects.
+    @param matrix_world: The world matrix of the current object.
+    @param visited: A set of visited object-instance pairs.
+    @return: An iterable of tuples containing the object, the instance objects, and the world matrix.
+    '''
+
+    # We want to also yield the top-level instance object so that callers can inspect the selection status etc.
+    if visited is None:
+        visited = set()
+
+    if instance_objects is None:
+        instance_objects = list()
+
+    # First, yield all objects in child collections.
+    for child in collection.children:
+        yield from _dfs_collection_objects_recursive(child, instance_objects, matrix_world.copy(), visited)
+
+    # Then, evaluate all objects in this collection.
+    for obj in dfs_objects_in_collection(collection):
+        visited_pair = (obj, instance_objects[-1] if instance_objects else None)
+        if visited_pair in visited:
+            continue
+        # If this an instance, we need to recurse into it.
+        if obj.instance_collection is not None:
+            # Calculate the instance transform.
+            instance_offset_matrix = Matrix.Translation(-obj.instance_collection.instance_offset)
+            # Recurse into the instance collection.
+            yield from _dfs_collection_objects_recursive(obj.instance_collection,
+                                                         instance_objects + [obj],
+                                                         matrix_world @ (obj.matrix_world @ instance_offset_matrix),
+                                                         visited)
+        else:
+            # Object is not an instance, yield it.
+            yield DfsObject(obj, instance_objects, matrix_world @ obj.matrix_world)
+            visited.add(visited_pair)
+
+
+def dfs_view_layer_objects(view_layer: ViewLayer) -> Iterable[DfsObject]:
+    '''
+    Depth-first iterator over all objects in a view layer, including recursing into instances.
+    @param view_layer: The view layer to inspect.
+    @return: An iterable of tuples containing the object, the instance objects, and the world matrix.
+    '''
+    visited = set()
+    def layer_collection_objects_recursive(layer_collection: LayerCollection):
+        for child in layer_collection.children:
+            yield from layer_collection_objects_recursive(child)
+        # Iterate only the top-level objects in this collection first.
+        yield from _dfs_collection_objects_recursive(layer_collection.collection, visited=visited)
+
+    yield from layer_collection_objects_recursive(view_layer.layer_collection)
+
+
+def _is_dfs_object_visible(obj: Object, instance_objects: List[Object]) -> bool:
+    '''
+    Check if a DFS object is visible.
+    @param obj: The object.
+    @param instance_objects: The instance objects.
+    @return: True if the object is visible, False otherwise.
+    '''
+    if instance_objects:
+        return instance_objects[-1].visible_get()
+    return obj.visible_get()

io_scene_psk_psa/shared/helpers.py

@@ -1,10 +1,9 @@
-import re
-import typing
-from typing import List, Iterable
+from typing import List, Iterable, cast
 
-import addon_utils
-import bpy.types
-from bpy.types import NlaStrip, Object, AnimData
+import bpy
+from bpy.props import CollectionProperty
+from bpy.types import AnimData, Object
+from bpy.types import Armature
 
 
 def rgb_to_srgb(c: float):
@@ -14,10 +13,9 @@ def rgb_to_srgb(c: float):
         return 12.92 * c
 
 
-def get_nla_strips_in_frame_range(animation_data: AnimData, frame_min: float, frame_max: float) -> List[NlaStrip]:
+def get_nla_strips_in_frame_range(animation_data: AnimData, frame_min: float, frame_max: float):
     if animation_data is None:
-        return []
-    strips = []
+        return
     for nla_track in animation_data.nla_tracks:
         if nla_track.mute:
             continue
@@ -25,17 +23,16 @@ def get_nla_strips_in_frame_range(animation_data: AnimData, frame_min: float, fr
             if (strip.frame_start < frame_min and strip.frame_end > frame_max) or \
                     (frame_min <= strip.frame_start < frame_max) or \
                     (frame_min < strip.frame_end <= frame_max):
-                strips.append(strip)
-    return strips
+                yield strip
 
 
-def populate_bone_collection_list(armature_object: Object, bone_collection_list: bpy.props.CollectionProperty) -> None:
-    '''
+def populate_bone_collection_list(armature_object: Object, bone_collection_list: CollectionProperty) -> None:
+    """
     Updates the bone collections collection.
 
     Bone collection selections are preserved between updates unless none of the groups were previously selected;
     otherwise, all collections are selected by default.
-    '''
+    """
     has_selected_collections = any([g.is_selected for g in bone_collection_list])
     unassigned_collection_is_selected, selected_assigned_collection_names = True, []
 
@@ -54,13 +51,13 @@ def populate_bone_collection_list(armature_object: Object, bone_collection_list:
 
     bone_collection_list.clear()
 
-    armature = armature_object.data
+    armature = cast(Armature, armature_object.data)
 
     if armature is None:
         return
 
     item = bone_collection_list.add()
-    item.name = bpy.app.translations.pgettext_iface('Unassigned')
+    item.name = 'Unassigned'
     item.index = -1
     # Count the number of bones without an assigned bone collection
     item.count = sum(map(lambda bone: 1 if len(bone.collections) == 0 else 0, armature.bones))
@@ -74,33 +71,21 @@ def populate_bone_collection_list(armature_object: Object, bone_collection_list:
         item.is_selected = bone_collection.name in selected_assigned_collection_names if has_selected_collections else True
 
 
-def check_bone_names(bone_names: Iterable[str]):
-    pattern = re.compile(r'^[a-zA-Z\d_\- ]+$')
-    invalid_bone_names = [x for x in bone_names if pattern.match(x) is None]
-    if len(invalid_bone_names) > 0:
-        message = bpy.app.translations.pgettext_iface(
-            'The following bone names are invalid: {invalid_bone_names}.\n'
-            'Bone names must only contain letters, numbers, spaces, hyphens and underscores.\n'
-            'You can bypass this by disabling "Enforce Bone Name Restrictions" in the export settings'
-        )
-        raise RuntimeError(message.format(invalid_bone_names=str(invalid_bone_names)))
-
-
-def get_export_bone_names(armature_object: Object, bone_filter_mode: str, bone_collection_indices: List[int]) -> List[str]:
-    '''
+def get_export_bone_names(armature_object: Object, bone_filter_mode: str, bone_collection_indices: Iterable[int]) -> List[str]:
+    """
     Returns a sorted list of bone indices that should be exported for the given bone filter mode and bone collections.
 
     Note that the ancestors of bones within the bone collections will also be present in the returned list.
 
     :param armature_object: Blender object with type 'ARMATURE'
     :param bone_filter_mode: One of ['ALL', 'BONE_COLLECTIONS']
-    :param bone_collection_indices: List of bone collection indices to be exported.
+    :param bone_collection_indices: A list of bone collection indices to export.
     :return: A sorted list of bone indices that should be exported.
-    '''
+    """
     if armature_object is None or armature_object.type != 'ARMATURE':
         raise ValueError('An armature object must be supplied')
 
-    armature_data = typing.cast(bpy.types.Armature, armature_object.data)
+    armature_data = cast(Armature, armature_object.data)
     bones = armature_data.bones
     bone_names = [x.name for x in bones]
 
@@ -156,21 +141,16 @@ def get_export_bone_names(armature_object: Object, bone_filter_mode: str, bone_c
                 # TODO: in future, it would be preferential to have a readout of *all* instigator bones.
                 instigator_bone_name = instigator_bone_names[bone_names.index(bone_name)]
                 if instigator_bone_name is None:
-                    message = bpy.app.translations.pgettext_iface('Root bone "{root_bone_name}" was included because {bone_name} was marked for export')
-                    message = message.format(root_bone_name=root_bone_name, bone_name=bone_name)
-                    print(message)
+                    print(f'Root bone "{root_bone_name}" was included because {bone_name} was marked for export')
                     break
                 bone_name = instigator_bone_name
 
-        message = bpy.app.translations.pgettext_iface(
-            'Exported bone hierarchy must have a single root bone.\n'
-            'The bone hierarchy marked for export has {root_bone_count} root bones: {root_bone_names}.\n'
-            'Additional debugging information has been written to the console.'
-        )
-        raise RuntimeError(message.format(root_bone_count=len(root_bones), root_bone_names=str(root_bone_names)))
+        raise RuntimeError('Exported bone hierarchy must have a single root bone.\n'
+                           f'The bone hierarchy marked for export has {len(root_bones)} root bones: {root_bone_names}.\n'
+                           f'Additional debugging information has been written to the console.')
 
     return bone_names
 
 
-def is_bdk_addon_loaded():
-    return addon_utils.check('bdk_addon')[1]
+def is_bdk_addon_loaded() -> bool:
+    return 'bdk' in dir(bpy.ops)

io_scene_psk_psa/shared/types.py

@@ -7,7 +7,7 @@ class PSX_UL_bone_collection_list(UIList):
     def draw_item(self, context: Context, layout: UILayout, data: AnyType, item: AnyType, icon: int,
                   active_data: AnyType, active_property: str, index: int = 0, flt_flag: int = 0):
         row = layout.row()
-        row.prop(item, 'is_selected', text=item.name, translate=False)
+        row.prop(item, 'is_selected', text=getattr(item, 'name'))
         row.label(text=str(getattr(item, 'count')), icon='BONE_DATA')
 
 
@@ -19,8 +19,8 @@ class PSX_PG_bone_collection_list_item(PropertyGroup):
 
 
 class PSX_PG_action_export(PropertyGroup):
-    compression_ratio: FloatProperty(name='Compression Ratio', default=1.0, min=0.0, max=1.0, subtype='FACTOR', description='The keyframe sampling ratio of the exported sequence.\n\nA compression ratio of 1.0 will export all frames, while a compression ratio of 0.5 will export half of the frames')
-    key_quota: IntProperty(name='Keyframe Quota', default=0, min=1, description='The minimum number of keyframes to be exported')
+    compression_ratio: FloatProperty(name='Compression Ratio', default=1.0, min=0.0, max=1.0, subtype='FACTOR', description='The key sampling ratio of the exported sequence.\n\nA compression ratio of 1.0 will export all frames, while a compression ratio of 0.5 will export half of the frames')
+    key_quota: IntProperty(name='Key Quota', default=0, min=1, description='The minimum number of frames to be exported')
     fps: FloatProperty(name='FPS', default=30.0, min=0.0, description='The frame rate of the exported sequence')
 
 

io_scene_psk_psa/shared/ui.py

@@ -0,0 +1,18 @@
+from bpy.types import UILayout
+
+from .data import bone_filter_mode_items
+
+
+def is_bone_filter_mode_item_available(pg, identifier):
+    if identifier == 'BONE_COLLECTIONS' and len(pg.bone_collection_list) == 0:
+        return False
+    return True
+
+
+def draw_bone_filter_mode(layout: UILayout, pg):
+    row = layout.row(align=True)
+    for item_identifier, _, _ in bone_filter_mode_items:
+        identifier = item_identifier
+        item_layout = row.row(align=True)
+        item_layout.prop_enum(pg, 'bone_filter_mode', item_identifier)
+        item_layout.enabled = is_bone_filter_mode_item_available(pg, identifier)

localization/.gitignore

@@ -1 +0,0 @@
-artifacts

localization/stringscan.py

@@ -1,132 +0,0 @@
-import ast
-import glob
-import os
-import pathlib
-
-import polib
-
-# Walk the directory and open all .py files using glob
-strings = dict()
-root_path = pathlib.Path('../io_scene_psk_psa').resolve()
-for file in glob.glob('../io_scene_psk_psa/**/*.py', recursive=True):
-    with open(os.path.join(file), 'r') as f:
-        if file.endswith('i18n.py'):
-            # TODO: Don't parse the i18n files.
-            continue
-        # Walk the entire tree and build a list of all string literals.
-        try:
-            a = ast.parse(f.read())
-            for node in ast.walk(a):
-                if isinstance(node, ast.Constant) and isinstance(node.value, str):
-                    a = pathlib.Path(file).resolve()
-                    filepath = a.relative_to(root_path)
-                    if node.s not in strings:
-                        strings[node.s] = filepath, node.lineno, node.col_offset
-        except UnicodeDecodeError as e:
-            print(f'Error reading file {file}: {e}')
-
-string_keys = set(strings.keys())
-
-# Remove all keys from the dictionary that are empty or contain only whitespace.
-string_keys = set(filter(lambda x: x.strip(), string_keys))
-
-# Remove all strings that have no alphabetic characters.
-string_keys = set(filter(lambda x: any(c.isalpha() for c in x), string_keys))
-
-# Remove any strings that have '@return: ' in them.
-string_keys = set(filter(lambda x: '@return: ' not in x, string_keys))
-
-# Remove any strings that are entirely lowercase and have no whitespace.
-string_keys = set(filter(lambda x: not x.islower() or ' ' in x, string_keys))
-
-# Remove any strings that are in SCREAMING_SNAKE_CASE.
-string_keys = set(filter(lambda x: not x.isupper(), string_keys))
-
-# Remove any strings that have underscores and no spaces.
-string_keys = set(filter(lambda x: '_' not in x or ' ' in x, string_keys))
-
-# Remove any string that starts with a newline.
-string_keys = set(filter(lambda x: not x.startswith('\n'), string_keys))
-
-# Remove any string that looks like a regular expression.
-string_keys = set(filter(lambda x: not any(c in x for c in '^'), string_keys))
-
-def write_multiline_string(f, string):
-    f.write(f'msgid ""\n')
-    for line in string.split('\n'):
-        f.write(f'"{line}"\n')
-    f.write('msgstr ""\n\n')
-
-# TODO: big brain move would be to load the translated Blender strings and remove any that are already translated
-# instead of manually removing them.
-exclude_strings = {
-    'Import-Export',
-    'Linear',
-    'Masked',
-    'Normal',
-    'Placeholder',
-    'Flat',
-    'Environment',
-    'Advanced',
-    'Action',
-    'All',
-    'Assets',
-    'Armature',
-    'Materials'
-    'Bones',
-    'Custom',
-    'Data',
-    'Colin Basnett, Yurii Ti',
-    'Invert',
-    'Keyframes', # maybe?
-    'Mesh',
-    'None',
-    'Options',
-    'Overwrite',
-    'Scale',
-    'Scene',
-    'Select',
-    'RemoveTracks'
-    'Source',
-    'Move Up',
-    'Move Down',
-    'Unassigned',
-    'Prefix',
-    'Suffix',
-    'Timeline Markers',
-    'Pose Markers',
-    'Actions',
-    'sRGBA',
-}
-
-# Remove any strings that are in the exclude_strings set.
-string_keys = set(filter(lambda x: x not in exclude_strings, string_keys))
-
-# Make a new PO file and write the strings to it.
-pofile = polib.POFile()
-
-pofile.header = '''msgid ""
-msgstr ""
-"Language: en\\n"
-"MIME-Version: 1.0\\n"
-"Content-Type: text/plain; charset=UTF-8\\n"
-"Content-Transfer-Encoding: 8bit\\n"
-'''
-
-# Sort the string keys into a list.
-string_keys = list(string_keys)
-string_keys.sort()
-
-for string_key in string_keys:
-    file, line, col = strings[string_key]
-    entry = polib.POEntry(
-        msgid=string_key,
-        msgstr=string_key,
-        comment=f'{file}:{line}',
-    )
-    pofile.append(entry)
-
-pofile.save('../extern/io_scene_psk_psa-translations/io_scene_psk_psa.en.po')
-
-# Print the # of strings.
-print(f'Found {len(string_keys)} strings.')

localization/update_i18n.py

@@ -1,27 +0,0 @@
-import os.path
-import pprint
-import re
-from glob import glob
-
-import polib
-
-langs = {}
-
-for file_path in glob('../extern/io_scene_psk_psa-translations/io_scene_psk_psa.*.po'):
-    with open(file_path, 'r', encoding='utf-8') as f:
-        content = f.read()
-        po = polib.pofile(content)
-
-        # Get the language code from the file name.
-        lang_code = re.match(r'io_scene_psk_psa.(\w*)\.po', os.path.basename(file_path)).group(1)
-
-        if lang_code == 'en':
-            continue
-
-        langs[lang_code] = {('*', entry.msgid): entry.msgstr for entry in po if entry.msgid != ''}
-
-with open('../io_scene_psk_psa/i18n.py', 'w', encoding='utf-8') as f:
-    s = pprint.pformat(langs)
-    f.write(f'langs = {s}')
-    print(f'Language_codes = {list(langs.keys())}')
-    print('Wrote i18n.py')