Initial commit for import functionality

requirements.txt

@@ -0,0 +1 @@
+python-ase

src/__init__.py

@@ -1,8 +1,8 @@
 bl_info = {
-    'name': 'ASCII Scene Export (ASE)',
+    'name': 'ASCII Scene Export',
     'description': 'Export ASE (ASCII Scene Export) files',
     'author': 'Colin Basnett (Darklight Games)',
-    'version': (1, 2, 1),
+    'version': (1, 1, 2),
     'blender': (2, 90, 0),
     'location': 'File > Import-Export',
     'warning': 'This add-on is under development.',
@@ -12,40 +12,204 @@ bl_info = {
     'category': 'Import-Export'
 }
 
-if 'bpy' in locals():
+import subprocess
+import os
+import sys
+from collections import namedtuple
+import bpy
+
+
+def install_pip():
+    """
+    Installs pip if not already present. Please note that ensurepip.bootstrap() also calls pip, which adds the
+    environment variable PIP_REQ_TRACKER. After ensurepip.bootstrap() finishes execution, the directory doesn't exist
+    anymore. However, when subprocess is used to call pip, in order to install a package, the environment variables
+    still contain PIP_REQ_TRACKER with the now nonexistent path. This is a problem since pip checks if PIP_REQ_TRACKER
+    is set and if it is, attempts to use it as temp directory. This would result in an error because the
+    directory can't be found. Therefore, PIP_REQ_TRACKER needs to be removed from environment variables.
+    :return:
+    """
+
+    try:
+        # Check if pip is already installed
+        subprocess.run([sys.executable, '-m', 'pip', '--version'], check=True)
+    except subprocess.CalledProcessError:
+        import ensurepip
+
+        ensurepip.bootstrap()
+        os.environ.pop('PIP_REQ_TRACKER', None)
+
+
+def install_and_import_module(module_name, package_name=None, global_name=None):
+    """
+    Installs the package through pip and attempts to import the installed module.
+    :param module_name: Module to import.
+    :param package_name: (Optional) Name of the package that needs to be installed. If None it is assumed to be equal
+       to the module_name.
+    :param global_name: (Optional) Name under which the module is imported. If None the module_name will be used.
+       This allows to import under a different name with the same effect as e.g. "import numpy as np" where "np" is
+       the global_name under which the module can be accessed.
+    :raises: subprocess.CalledProcessError and ImportError
+    """
+    if package_name is None:
+        package_name = module_name
+
+    if global_name is None:
+        global_name = module_name
+
+    # Blender disables the loading of user site-packages by default. However, pip will still check them to determine
+    # if a dependency is already installed. This can cause problems if the packages is installed in the user
+    # site-packages and pip deems the requirement satisfied, but Blender cannot import the package from the user
+    # site-packages. Hence, the environment variable PYTHONNOUSERSITE is set to disallow pip from checking the user
+    # site-packages. If the package is not already installed for Blender's Python interpreter, it will then try to.
+    # The paths used by pip can be checked with `subprocess.run([bpy.app.binary_path_python, "-m", "site"], check=True)`
+
+    # Create a copy of the environment variables and modify them for the subprocess call
+    environ_copy = dict(os.environ)
+    environ_copy['PYTHONNOUSERSITE'] = '1'
+
+    subprocess.run([sys.executable, '-m', 'pip', 'install', package_name], check=True, env=environ_copy)
+
+    # The installation succeeded, attempt to import the module again
+    import_module(module_name, global_name)
+
+
+class EXAMPLE_OT_install_dependencies(bpy.types.Operator):
+    bl_idname = 'io_scene_ase.install_dependencies'
+    bl_label = 'Install dependencies'
+    bl_description = ('Downloads and installs the required python packages for this add-on. '
+                      'Internet connection is required. Blender may have to be started with '
+                      'elevated permissions in order to install the package')
+    bl_options = {'REGISTER', 'INTERNAL'}
+
+    @classmethod
+    def poll(self, context):
+        # Deactivate when dependencies have been installed
+        return not dependencies_installed
+
+    def execute(self, context):
+        try:
+            install_pip()
+            for dependency in dependencies:
+                install_and_import_module(module_name=dependency.module,
+                                          package_name=dependency.package,
+                                          global_name=dependency.name)
+        except (subprocess.CalledProcessError, ImportError) as err:
+            self.report({'ERROR'}, str(err))
+            return {'CANCELLED'}
+
+        global dependencies_installed
+        dependencies_installed = True
+
+        # Register the panels, operators, etc. since dependencies are installed
+        for cls in classes:
+            bpy.utils.register_class(cls)
+
+        return {'FINISHED'}
+
+
+class EXAMPLE_preferences(bpy.types.AddonPreferences):
+    bl_idname = __name__
+
+    def draw(self, context):
+        layout = self.layout
+        layout.operator(EXAMPLE_OT_install_dependencies.bl_idname, icon='CONSOLE')
+
+
+Dependency = namedtuple('Dependency', ['module', 'package', 'name'])
+
+dependencies = (Dependency(module='asepy', package=None, name=None),)
+
+dependencies_installed = False
+
+
+def import_module(module_name, global_name=None, reload=True):
+    """
+    Import a module.
+    :param module_name: Module to import.
+    :param global_name: (Optional) Name under which the module is imported. If None the module_name will be used.
+       This allows to import under a different name with the same effect as e.g. "import numpy as np" where "np" is
+       the global_name under which the module can be accessed.
+    :raises: ImportError and ModuleNotFoundError
+    """
+    if global_name is None:
+        global_name = module_name
+
+    if global_name in globals():
+        importlib.reload(globals()[global_name])
+    else:
+        # Attempt to import the module and assign it to globals dictionary. This allow to access the module under
+        # the given name, just like the regular import would.
+        globals()[global_name] = importlib.import_module(module_name)
+
+
+preference_classes = (EXAMPLE_OT_install_dependencies,
+                      EXAMPLE_preferences)
+
+if __name__ == 'io_scene_ase':
+    if 'bpy' in locals():
         import importlib
         if 'ase'        in locals(): importlib.reload(ase)
         if 'builder'    in locals(): importlib.reload(builder)
         if 'writer'     in locals(): importlib.reload(writer)
         if 'exporter'   in locals(): importlib.reload(exporter)
+        if 'reader'     in locals(): importlib.reload(reader)
 
-import bpy
+    import bpy
-from bpy.props import PointerProperty
+    import bpy.utils.previews
-from . import ase
+    from . import ase
-from . import builder
+    from . import builder
-from . import writer
+    from . import writer
-from . import exporter
+    from . import exporter
 
-classes = exporter.__classes__
+    print('dependencies installed??')
+    print(dependencies_installed)
+
+    if dependencies_installed:
+        from . import reader
+
+    classes = (
+        exporter.ASE_OT_ExportOperator,
+    )
+
+    if dependencies_installed:
+        classes += reader.classes
 
 
-def menu_func_export(self, context):
+    def menu_func_export(self, context):
         self.layout.operator(exporter.ASE_OT_ExportOperator.bl_idname, text='ASCII Scene Export (.ase)')
 
+    def menu_func_import(self, context):
+        self.layout.operator(reader.ASE_OT_ImportOperator.bl_idname, text='ASCII Scene Export (.ase)')
+
+
+    def register():
+        global dependencies_installed
+
+        for cls in preference_classes:
+            bpy.utils.register_class(cls)
+
+        try:
+            for dependency in dependencies:
+                import_module(module_name=dependency.module, global_name=dependency.name)
+            dependencies_installed = True
+        except ModuleNotFoundError:
+            # Don't register other panels, operators etc.
+            return
 
-def register():
         for cls in classes:
             bpy.utils.register_class(cls)
 
         bpy.types.TOPBAR_MT_file_export.append(menu_func_export)
 
-    bpy.types.Scene.ase_export = PointerProperty(type=exporter.AseExportPropertyGroup)
+        if 'reader' in locals():
+            bpy.types.TOPBAR_MT_file_import.append(menu_func_import)
 
 
-def unregister():
+    def unregister():
-    del bpy.types.Scene.ase_export
-
         bpy.types.TOPBAR_MT_file_export.remove(menu_func_export)
+        if 'reader' in locals():
+            bpy.types.TOPBAR_MT_file_import.remove(menu_func_import)
 
         for cls in classes:
             bpy.utils.unregister_class(cls)

src/ase.py

@@ -1,7 +1,4 @@
-from typing import List, Tuple
+class ASEFace(object):
-
-
-class AseFace(object):
     def __init__(self):
         self.a = 0
         self.b = 0
@@ -13,37 +10,45 @@ class AseFace(object):
         self.material_index = 0
 
 
-class AseVertexNormal(object):
+class ASEVertexNormal(object):
     def __init__(self):
         self.vertex_index = 0
         self.normal = (0.0, 0.0, 0.0)
 
 
-class AseFaceNormal(object):
+class ASEFaceNormal(object):
     def __init__(self):
         self.normal = (0.0, 0.0, 1.0)
-        self.vertex_normals = [AseVertexNormal()] * 3
+        self.vertex_normals = [ASEVertexNormal()] * 3
 
 
-class AseUVLayer(object):
+def is_collision_name(name):
+    return name.startswith('MCDCX_')
+
+
+class ASEUVLayer(object):
     def __init__(self):
-        self.texture_vertices: List[Tuple[float, float, float]] = []
+        self.texture_vertices = []
 
 
-class AseGeometryObject(object):
+class ASEGeometryObject(object):
     def __init__(self):
         self.name = ''
-        self.vertices: List[Tuple[float, float, float]] = []
+        self.vertices = []
-        self.uv_layers: List[AseUVLayer] = []
+        self.uv_layers = []
-        self.faces: List[AseFace] = []
+        self.faces = []
         self.texture_vertex_faces = []
-        self.face_normals: List[AseFaceNormal] = []
+        self.face_normals = []
-        self.vertex_colors: List[Tuple[float, float, float]] = []
+        self.vertex_colors = []
         self.vertex_offset = 0
         self.texture_vertex_offset = 0
 
+    @property
+    def is_collision(self):
+        return is_collision_name(self.name)
 
-class Ase(object):
+
+class ASE(object):
     def __init__(self):
-        self.materials: List[str] = []
+        self.materials = []
-        self.geometry_objects: List[AseGeometryObject] = []
+        self.geometry_objects = []

src/builder.py

@@ -5,29 +5,22 @@ import math
 from mathutils import Matrix
 
 
-def is_collision_name(name: str):
+class ASEBuilderError(Exception):
-    return name.startswith('MCDCX_')
-
-
-def is_collision(geometry_object: AseGeometryObject):
-    return is_collision_name(geometry_object.name)
-
-
-class AseBuilderError(Exception):
     pass
 
 
-class AseBuilderOptions(object):
+class ASEBuilderOptions(object):
     def __init__(self):
         self.scale = 1.0
         self.use_raw_mesh_data = False
 
 
-def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
+class ASEBuilder(object):
-    ase = Ase()
+    def build(self, context, options: ASEBuilderOptions):
+        ase = ASE()
 
         main_geometry_object = None
-    for selected_object in context.view_layer.objects.selected:
+        for selected_object in context.selected_objects:
             if selected_object is None or selected_object.type != 'MESH':
                 continue
 
@@ -48,36 +41,36 @@ def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
             if not is_collision_name(selected_object.name) and main_geometry_object is not None:
                 geometry_object = main_geometry_object
             else:
-            geometry_object = AseGeometryObject()
+                geometry_object = ASEGeometryObject()
                 geometry_object.name = selected_object.name
-            if not is_collision(geometry_object):
+                if not geometry_object.is_collision:
                     main_geometry_object = geometry_object
                 ase.geometry_objects.append(geometry_object)
 
-        if is_collision(geometry_object):
+            if geometry_object.is_collision:
                 # Test that collision meshes are manifold and convex.
                 bm = bmesh.new()
-            bm.from_mesh(mesh_data)
+                bm.from_mesh(mesh_object.data)
                 for edge in bm.edges:
                     if not edge.is_manifold:
                         del bm
-                    raise AseBuilderError(f'Collision mesh \'{selected_object.name}\' is not manifold')
+                        raise ASEBuilderError(f'Collision mesh \'{selected_object.name}\' is not manifold')
                     if not edge.is_convex:
                         del bm
-                    raise AseBuilderError(f'Collision mesh \'{selected_object.name}\' is not convex')
+                        raise ASEBuilderError(f'Collision mesh \'{selected_object.name}\' is not convex')
 
-        if not is_collision(geometry_object) and len(selected_object.data.materials) == 0:
+            if not geometry_object.is_collision and len(selected_object.data.materials) == 0:
-            raise AseBuilderError(f'Mesh \'{selected_object.name}\' must have at least one material')
+                raise ASEBuilderError(f'Mesh \'{selected_object.name}\' must have at least one material')
 
             vertex_transform = Matrix.Scale(options.scale, 4) @ Matrix.Rotation(math.pi, 4, 'Z') @ mesh_object.matrix_world
-        for vertex in mesh_data.vertices:
+            for vertex_index, vertex in enumerate(mesh_data.vertices):
                 geometry_object.vertices.append(vertex_transform @ vertex.co)
 
             material_indices = []
-        if not is_collision(geometry_object):
+            if not geometry_object.is_collision:
                 for mesh_material_index, material in enumerate(selected_object.data.materials):
                     if material is None:
-                    raise AseBuilderError(f'Material slot {mesh_material_index + 1} for mesh \'{selected_object.name}\' cannot be empty')
+                        raise ASEBuilderError(f'Material slot {mesh_material_index + 1} for mesh \'{selected_object.name}\' cannot be empty')
                     try:
                         # Reuse existing material entries for duplicates
                         material_index = ase.materials.index(material.name)
@@ -91,12 +84,12 @@ def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
             poly_groups, groups = mesh_data.calc_smooth_groups(use_bitflags=False)
 
             # Faces
-        for loop_triangle in mesh_data.loop_triangles:
+            for face_index, loop_triangle in enumerate(mesh_data.loop_triangles):
-            face = AseFace()
+                face = ASEFace()
                 face.a = geometry_object.vertex_offset + mesh_data.loops[loop_triangle.loops[0]].vertex_index
                 face.b = geometry_object.vertex_offset + mesh_data.loops[loop_triangle.loops[1]].vertex_index
                 face.c = geometry_object.vertex_offset + mesh_data.loops[loop_triangle.loops[2]].vertex_index
-            if not is_collision(geometry_object):
+                if not geometry_object.is_collision:
                     face.material_index = material_indices[loop_triangle.material_index]
                 # The UT2K4 importer only accepts 32 smoothing groups. Anything past this completely mangles the
                 # smoothing groups and effectively makes the whole model use sharp-edge rendering.
@@ -108,14 +101,14 @@ def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
                 face.smoothing = (poly_groups[loop_triangle.polygon_index] - 1) % 32
                 geometry_object.faces.append(face)
 
-        if not is_collision(geometry_object):
+            if not geometry_object.is_collision:
                 # Normals
-            for loop_triangle in mesh_data.loop_triangles:
+                for face_index, loop_triangle in enumerate(mesh_data.loop_triangles):
-                face_normal = AseFaceNormal()
+                    face_normal = ASEFaceNormal()
                     face_normal.normal = loop_triangle.normal
                     face_normal.vertex_normals = []
                     for i in range(3):
-                    vertex_normal = AseVertexNormal()
+                        vertex_normal = ASEVertexNormal()
                         vertex_normal.vertex_index = geometry_object.vertex_offset + mesh_data.loops[loop_triangle.loops[i]].vertex_index
                         vertex_normal.normal = loop_triangle.split_normals[i]
                         face_normal.vertex_normals.append(vertex_normal)
@@ -124,7 +117,7 @@ def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
                 # Texture Coordinates
                 for i, uv_layer_data in enumerate([x.data for x in mesh_data.uv_layers]):
                     if i >= len(geometry_object.uv_layers):
-                    geometry_object.uv_layers.append(AseUVLayer())
+                        geometry_object.uv_layers.append(ASEUVLayer())
                     uv_layer = geometry_object.uv_layers[i]
                     for loop_index, loop in enumerate(mesh_data.loops):
                         u, v = uv_layer_data[loop_index].uv
@@ -145,13 +138,13 @@ def build_ase(context: bpy.types.Context, options: AseBuilderOptions):
                         geometry_object.vertex_colors.append(tuple(color[0:3]))
 
             # Update data offsets for next iteration
-        geometry_object.texture_vertex_offset += len(mesh_data.loops)
+            geometry_object.texture_vertex_offset = len(mesh_data.loops)
             geometry_object.vertex_offset = len(geometry_object.vertices)
 
         if len(ase.geometry_objects) == 0:
-        raise AseBuilderError('At least one mesh object must be selected')
+            raise ASEBuilderError('At least one mesh object must be selected')
 
         if main_geometry_object is None:
-        raise AseBuilderError('At least one non-collision mesh must be exported')
+            raise ASEBuilderError('At least one non-collision mesh must be exported')
 
         return ase

src/exporter.py

@@ -1,53 +1,10 @@
+import bpy
 import bpy_extras
-import typing
+from bpy.props import StringProperty, FloatProperty, EnumProperty, BoolProperty
-from bpy.types import UIList, Context, UILayout, AnyType, Operator
-from bpy.props import StringProperty, EnumProperty, BoolProperty, PointerProperty, CollectionProperty, IntProperty
 from .builder import *
 from .writer import *
 
 
-class AseExportCollectionPropertyGroup(bpy.types.PropertyGroup):
-    is_selected: BoolProperty()
-    name: StringProperty()
-    collection: PointerProperty(type=bpy.types.Collection)
-
-
-class AseExportPropertyGroup(bpy.types.PropertyGroup):
-    collection_list: CollectionProperty(type=AseExportCollectionPropertyGroup)
-    collection_list_index: IntProperty()
-
-
-class ASE_UL_CollectionList(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):
-        collection: bpy.types.Collection = getattr(item, 'collection')
-        row = layout.row()
-        row.prop(item, 'is_selected', text='')
-        row.label(text=collection.name, icon='OUTLINER_COLLECTION')
-
-
-class AseExportCollectionsSelectAll(Operator):
-    bl_idname = 'ase_export.collections_select_all'
-    bl_label = 'All'
-
-    def execute(self, context: Context) -> typing.Union[typing.Set[str], typing.Set[int]]:
-        pg = getattr(context.scene, 'ase_export')
-        for collection in pg.collection_list:
-            collection.is_selected = True
-        return {'FINISHED'}
-
-
-class AseExportCollectionsDeselectAll(Operator):
-    bl_idname = 'ase_export.collections_deselect_all'
-    bl_label = 'None'
-
-    def execute(self, context: Context) -> typing.Union[typing.Set[str], typing.Set[int]]:
-        pg = getattr(context.scene, 'ase_export')
-        for collection in pg.collection_list:
-            collection.is_selected = False
-        return {'FINISHED'}
-
-
 class ASE_OT_ExportOperator(bpy.types.Operator, bpy_extras.io_utils.ExportHelper):
     bl_idname = 'io_scene_ase.ase_export'  # important since its how bpy.ops.import_test.some_data is constructed
     bl_label = 'Export ASE'
@@ -60,76 +17,32 @@ class ASE_OT_ExportOperator(bpy.types.Operator, bpy_extras.io_utils.ExportHelper
         maxlen=255,  # Max internal buffer length, longer would be hilighted.
     )
     units: EnumProperty(
-        default='U',
         items=(('M', 'Meters', ''),
                ('U', 'Unreal', '')),
-        name='Units'
+        name='Units',
+        default='U'
     )
-    use_raw_mesh_data: BoolProperty(
+    use_raw_mesh_data: BoolProperty(default=False, name='Raw Mesh Data')
-        default=False,
+
-        description='No modifiers will be evaluated as part of the exported mesh',
-        name='Raw Mesh Data')
     units_scale = {
         'M': 60.352,
         'U': 1.0
     }
-    should_use_sub_materials: BoolProperty(
-        default=True,
-        description='Material format',  # fill this in with a more human-friendly name/description
-        name='Use Sub-materials'
-    )
 
     def draw(self, context):
-        pg = getattr(context.scene, 'ase_export')
         layout = self.layout
-        rows = max(3, min(len(pg.collection_list), 10))
         layout.prop(self, 'units', expand=False)
         layout.prop(self, 'use_raw_mesh_data')
-        layout.prop(self, 'should_use_sub_materials')
-
-        # # SELECT ALL/NONE
-        # row = layout.row(align=True)
-        # row.label(text='Select')
-        # row.operator(AseExportCollectionsSelectAll.bl_idname, text='All', icon='CHECKBOX_HLT')
-        # row.operator(AseExportCollectionsDeselectAll.bl_idname, text='None', icon='CHECKBOX_DEHLT')
-        #
-        # layout.template_list('ASE_UL_CollectionList', '', pg, 'collection_list', pg, 'collection_list_index', rows=rows)
-
-    def invoke(self, context: bpy.types.Context, event):
-        # TODO: build a list of collections that have meshes in them
-        pg = getattr(context.scene, 'ase_export')
-        pg.collection_list.clear()
-        for collection in bpy.data.collections:
-            has_meshes = any(map(lambda x: x.type == 'MESH', collection.objects))
-            if has_meshes:
-                c = pg.collection_list.add()
-                c.collection = collection
-
-        context.window_manager.fileselect_add(self)
-
-        return {'RUNNING_MODAL'}
 
     def execute(self, context):
-        options = AseBuilderOptions()
+        options = ASEBuilderOptions()
         options.scale = self.units_scale[self.units]
         options.use_raw_mesh_data = self.use_raw_mesh_data
         try:
-            ase = build_ase(context, options)
+            ase = ASEBuilder().build(context, options)
-            writer_options = AseWriterOptions()
+            ASEWriter().write(self.filepath, ase)
-            writer_options.should_use_sub_materials = self.should_use_sub_materials
+            self.report({'INFO'}, 'ASE export successful')
-            AseWriter().write(self.filepath, ase, writer_options)
-            self.report({'INFO'}, 'ASE exported successful')
             return {'FINISHED'}
-        except AseBuilderError as e:
+        except ASEBuilderError as e:
             self.report({'ERROR'}, str(e))
             return {'CANCELLED'}
-
-
-__classes__ = (
-    AseExportCollectionPropertyGroup,
-    AseExportPropertyGroup,
-    AseExportCollectionsSelectAll,
-    AseExportCollectionsDeselectAll,
-    ASE_UL_CollectionList,
-    ASE_OT_ExportOperator
-)

src/reader.py

@@ -0,0 +1,25 @@
+import bpy
+from bpy.props import StringProperty
+import bpy_extras
+
+
+
+from asepy import read_ase
+
+
+class ASE_OT_ImportOperator(bpy.types.Operator, bpy_extras.io_utils.ImportHelper):
+    bl_idname = 'io_scene_ase.ase_export'  # important since its how bpy.ops.import_test.some_data is constructed
+    bl_label = 'Export ASE'
+    bl_space_type = 'PROPERTIES'
+    bl_region_type = 'WINDOW'
+    filename_ext = '.ase'
+    filter_glob: StringProperty(
+        default="*.ase",
+        options={'HIDDEN'},
+        maxlen=255,
+    )
+
+
+classes = (
+    ASE_OT_ImportOperator
+)

src/tests/scripts/export_flat_test.py

@@ -0,0 +1,18 @@
+import bpy
+
+try:
+    bpy.ops.object.mode_set(mode='OBJECT')
+except:
+    pass
+
+bpy.ops.object.select_all(action='SELECT')
+bpy.ops.object.delete()
+
+bpy.ops.mesh.primitive_monkey_add()
+bpy.ops.object.select_all(action='SELECT')
+
+mesh_object = bpy.context.view_layer.objects.active
+material = bpy.data.materials.new('asd')
+mesh_object.data.materials.append(material)
+
+r = bpy.ops.io_scene_ase.ase_export(filepath=r'.\\flat.ase')

src/tests/tests.py

@@ -0,0 +1,28 @@
+import unittest
+import os
+from subprocess import run, PIPE, STDOUT
+from ..reader import read_ase
+from dotenv import load_dotenv
+
+
+def run_blender_script(script_path: str, args=list()):
+    return run([os.environ['BLENDER_PATH'], '--background', '--python', script_path, '--'] + args)
+
+
+class AseExportTests(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        load_dotenv()
+
+    def test_flat(self):
+        run_blender_script('src\\tests\\scripts\\export_flat_test.py')
+        read_ase('./flat.ase')
+
+    def test_smooth(self):
+        pass
+
+
+if __name__ == '__main__':
+    print()
+    unittest.main()

src/writer.py

@@ -1,22 +1,17 @@
-from .ase import Ase
+from .ase import *
 
 
-class AseWriterOptions(object):
+class ASEFile(object):
-    def __init__(self):
-        self.should_use_sub_materials = True
-
-
-class AseFile(object):
     def __init__(self):
         self.commands = []
 
     def add_command(self, name):
-        command = AseCommand(name)
+        command = ASECommand(name)
         self.commands.append(command)
         return command
 
 
-class AseCommand(object):
+class ASECommand(object):
     def __init__(self, name):
         self.name = name
         self.data = []
@@ -44,17 +39,17 @@ class AseCommand(object):
         return self
 
     def push_sub_command(self, name):
-        command = AseCommand(name)
+        command = ASECommand(name)
         self.sub_commands.append(command)
         return command
 
     def push_child(self, name):
-        child = AseCommand(name)
+        child = ASECommand(name)
         self.children.append(child)
         return child
 
 
-class AseWriter(object):
+class ASEWriter(object):
 
     def __init__(self):
         self.fp = None
@@ -102,21 +97,19 @@ class AseWriter(object):
         else:
             self.fp.write('\n')
 
-    def write_file(self, file: AseFile):
+    def write_file(self, file: ASEFile):
-        self.indent = 0
         for command in file.commands:
             self.write_command(command)
 
     @staticmethod
-    def build_ase_file(ase: Ase, options: AseWriterOptions) -> AseFile:
+    def build_ase_tree(ase) -> ASEFile:
-        root = AseFile()
+        root = ASEFile()
         root.add_command('3DSMAX_ASCIIEXPORT').push_datum(200)
 
         # Materials
         if len(ase.materials) > 0:
             material_list = root.add_command('MATERIAL_LIST')
             material_list.push_child('MATERIAL_COUNT').push_datum(len(ase.materials))
-            if options.should_use_sub_materials:
             material_node = material_list.push_child('MATERIAL')
             material_node.push_child('NUMSUBMTLS').push_datum(len(ase.materials))
             for material_index, material in enumerate(ase.materials):
@@ -129,50 +122,22 @@ class AseWriter(object):
                 diffuse_node.push_child('UVW_V_OFFSET').push_datum(0.0)
                 diffuse_node.push_child('UVW_U_TILING').push_datum(1.0)
                 diffuse_node.push_child('UVW_V_TILING').push_datum(1.0)
-            else:
-                for material_index, material in enumerate(ase.materials):
-                    material_node = material_list.push_child('MATERIAL').push_datum(material_index)
-                    material_node.push_child('MATERIAL_NAME').push_datum(material)
-                    diffuse_node = material_node.push_child('MAP_DIFFUSE')
-                    diffuse_node.push_child('MAP_NAME').push_datum('default')
-                    diffuse_node.push_child('UVW_U_OFFSET').push_datum(0.0)
-                    diffuse_node.push_child('UVW_V_OFFSET').push_datum(0.0)
-                    diffuse_node.push_child('UVW_U_TILING').push_datum(1.0)
-                    diffuse_node.push_child('UVW_V_TILING').push_datum(1.0)
 
         for geometry_object in ase.geometry_objects:
             geomobject_node = root.add_command('GEOMOBJECT')
             geomobject_node.push_child('NODE_NAME').push_datum(geometry_object.name)
 
-            # TODO: only do this in T3D compatibility mode (or just do it always because it makes no difference?)
-            transform_node = geomobject_node.push_child('NODE_TM')
-            transform_node.push_child('NODE_NAME').push_datum(geometry_object.name)
-            transform_node.push_child('INHERIT_POS').push_data([0, 0, 0])
-            transform_node.push_child('INHERIT_ROT').push_data([0, 0, 0])
-            transform_node.push_child('INHERIT_SCL').push_data([0, 0, 0])
-            transform_node.push_child('TM_ROW0').push_data([1.0, 0.0, 0.0])
-            transform_node.push_child('TM_ROW1').push_data([0.0, 1.0, 0.0])
-            transform_node.push_child('TM_ROW2').push_data([0.0, 0.0, 1.0])
-            transform_node.push_child('TM_ROW3').push_data([0.0, 0.0, 0.0])
-            transform_node.push_child('TM_POS').push_data([0.0, 0.0, 0.0])
-            transform_node.push_child('TM_ROTAXIS').push_data([0.0, 0.0, 0.0])
-            transform_node.push_child('TM_ROTANGLE').push_datum(0.0)
-            transform_node.push_child('TM_SCALE').push_datum(0.0)
-            transform_node.push_child('TM_SCALEAXIS').push_data([0.0, 0.0, 0.0])
-            transform_node.push_child('TM_SCALEAXISANG').push_datum(0.0)
-
             mesh_node = geomobject_node.push_child('MESH')
 
-            mesh_node.push_child('MESH_NUMVERTEX').push_datum(len(geometry_object.vertices))
-            mesh_node.push_child('MESH_NUMFACES').push_datum(len(geometry_object.faces))
-
             # Vertices
+            mesh_node.push_child('MESH_NUMVERTEX').push_datum(len(geometry_object.vertices))
             vertex_list_node = mesh_node.push_child('MESH_VERTEX_LIST')
             for vertex_index, vertex in enumerate(geometry_object.vertices):
                 mesh_vertex = vertex_list_node.push_child('MESH_VERTEX').push_datum(vertex_index)
                 mesh_vertex.push_data([x for x in vertex])
 
             # Faces
+            mesh_node.push_child('MESH_NUMFACES').push_datum(len(geometry_object.faces))
             faces_node = mesh_node.push_child('MESH_FACE_LIST')
             for face_index, face in enumerate(geometry_object.faces):
                 face_node = faces_node.push_child('MESH_FACE')
@@ -217,20 +182,18 @@ class AseWriter(object):
                 cvert_list = mesh_node.push_child('MESH_CVERTLIST')
                 for i, vertex_color in enumerate(geometry_object.vertex_colors):
                     cvert_list.push_child('MESH_VERTCOL').push_datum(i).push_data(vertex_color)
-                mesh_node.push_child('MESH_NUMCVFACES').push_datum(len(geometry_object.texture_vertex_faces))
+                parent_node.push_child('MESH_NUMCVFACES').push_datum(len(geometry_object.texture_vertex_faces))
-                texture_faces_node = mesh_node.push_child('MESH_CFACELIST')
+                texture_faces_node = parent_node.push_child('MESH_CFACELIST')
                 for texture_face_index, texture_face in enumerate(geometry_object.texture_vertex_faces):
                     texture_face_node = texture_faces_node.push_child('MESH_CFACE')
                     texture_face_node.push_data([texture_face_index] + list(texture_face))
 
-            geomobject_node.push_child('PROP_MOTIONBLUR').push_datum(0)
-            geomobject_node.push_child('PROP_CASTSHADOW').push_datum(1)
-            geomobject_node.push_child('PROP_RECVSHADOW').push_datum(1)
             geomobject_node.push_child('MATERIAL_REF').push_datum(0)
 
         return root
 
-    def write(self, filepath, ase: Ase, options: AseWriterOptions):
+    def write(self, filepath, ase):
-        ase_file = self.build_ase_file(ase, options)
+        self.indent = 0
+        ase_file = self.build_ase_tree(ase)
         with open(filepath, 'w') as self.fp:
             self.write_file(ase_file)