feat: Mass export to several files

__init__.py

@@ -16,24 +16,24 @@
 #
 # END GPL LICENSE BLOCK #####
 
-
 bl_info = {
-	"name": "Khanat Tools",
+    "name": "Khanat tools",
     "author": "Yann Kervran",
     "version": (1, 0, 0),
     "blender": (3, 4, 0),
-	"location": "View3D > UI > Tools",
+    "location": "View3D > UI > N Panel",
     "description": "Toolset for Khanat project",
     "doc_url": "https://git.numenaute.org/yannk/khanat-tools",
+    "tracker_url": "https://git.numenaute.org/yannk/khanat-tools/-/issues",
     "category": "Generic"
 }
 
 
 def register():
-    from addon.register import register_addon
+    from .addon.register import register_addon
     register_addon()
 
 
 def unregister():
-    from addon.register import unregister_addon
+    from .addon.register import unregister_addon
     unregister_addon()

addon/common/addon.py

@@ -0,0 +1,11 @@
+import bpy
+
+"""
+Parameters & functions to get information from addon
+"""
+
+addon_name = __name__.partition('.')[0]
+
+
+def get_prefs():
+    return bpy.context.preferences.addons[addon_name].preferences

addon/common/icons.py

@@ -0,0 +1,16 @@
+import bpy
+import os
+
+
+icons_collection = None
+icons_directory = os.path.dirname(__file__)
+
+
+def get_icon_id(identifier):
+    return get_icon(identifier).icon_id
+
+
+def get_icon(identifier):
+    if identifier in icons_collection:
+        return icons_collection[identifier]
+    return icons_collection.load(identifier, os.path.join(icons_directory, identifier + ".png"), "IMAGE")

addon/common/validate_name.py

@@ -0,0 +1,11 @@
+import re
+
+def validate_name(name):
+	"""Check if the name is properly formatted
+	Must be in kebab-case, with possible underscore for prefixes/sufixes
+	and only alphanumerical
+	A-z0-9 doesn’t seem to work in regexp, so had to write them full extent
+	"""
+
+	allowed = re.match(r'^([ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]+)_?([ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-]+)_?([ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]+)$', name)
+	return allowed is not None

addon/icons/__init__.py

@@ -1,29 +1,21 @@
 import bpy
 import os
 
-icons_collection = None
-icons_directory =  os.path.dirname(__file__)
+from ..common import icons
+
 
 def initialize_icons_collection():
     import bpy.utils.previews
-	global icons_collection
-	print("icons_collection : {}".format(icons_collection))
-	icons_collection = bpy.utils.previews.new()
+    icons.icons_collection = bpy.utils.previews.new()
+
 
 def unload_icons():
-	bpy.utils.previews.remove(icons_collection)
+    bpy.utils.previews.remove(icons.icons_collection)
 
-def get_icon_id(identifier):
-	# The initialize_icons_collection function needs to be called first.
-	return get_icon(identifier).icon_id
-
-def get_icon(identifier):
-	if identifier in icons_collection:
-		return icons_collection[identifier]
-	return icons_collection.load(identifier, os.path.join(icons_directory, identifier + ".png"), "IMAGE")
 
 def register_icons():
     initialize_icons_collection()
 
+
 def unregister_icons():
     unload_icons()

addon/menus/__init__.py

@@ -1,5 +1,3 @@
-import bpy
-
 from .panel_main import KH_PT_panel_main
 
 classes = (
@@ -11,7 +9,6 @@ def register_menus():
     for cls in classes:
         register_class(cls)
 
-
 def unregister_menus():
     from bpy.utils import unregister_class
     for cls in classes:

addon/menus/panel_main.py

@@ -1,26 +1,31 @@
 import bpy
+
 from ..operators import readthedocs, export2godot
-from ..icons import get_icon_id
+from ..common import icons
+
 
 class KH_PT_panel_main(bpy.types.Panel):
+    """
+    Main panel in 3D View
+    """
+
     bl_label = 'Khanat tools'
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
     bl_context = ''
     bl_category = 'Khanat'
 
-
     def draw_header(self, context):
         layout = self.layout
-		layout.label(icon_value=get_icon_id("khanat"))
+        layout.label(icon_value=icons.get_icon_id("khanat"))
 
     def draw(self, context):
         layout = self.layout
 
         row = layout.row()
-		row.operator(export2godot.KH_OP_export2godot.bl_idname)
+        row.operator(export2godot.KH_OT_export2godot.bl_idname)
         layout.separator()
 
         row = layout.row()
-		row.operator(readthedocs.KH_OP_readthedocs.bl_idname, icon_value=72)
+        row.operator(readthedocs.KH_OT_readthedocs.bl_idname, icon_value=72)
         layout.separator()

addon/operators/__init__.py

@@ -1,15 +1,13 @@
-import bpy
-
-from .readthedocs import KH_OP_readthedocs
-from .export2godot import KH_OP_export2godot
+from .readthedocs import KH_OT_readthedocs
+from .export2godot import KH_OT_export2godot
 
 classes = (
-	KH_OP_readthedocs,
-	KH_OP_export2godot
+    KH_OT_readthedocs,
+    KH_OT_export2godot
 )
 
+
 def register_operators():
-	print(classes)
     from bpy.utils import register_class
     for cls in classes:
         register_class(cls)

addon/operators/export2godot.py

@@ -1,14 +1,113 @@
 import bpy
+import os
+import re
 
-class KH_OP_export2godot(bpy.types.Operator):
-	"""Export collections to Godot throught glTF"""
+from ..common import addon
+from ..common import validate_name
+
+class KH_OT_export2godot(bpy.types.Operator):
+	"""Export whole collections to Godot throught glTF format"""
 	bl_idname = "kh.export2godot"
-	bl_label = "Export to gltf"
+	bl_label = "Export to Godot project"
 	bl_options = {'REGISTER', 'UNDO'}
 
 	def invoke(self, context, event):
 		return self.execute(context)
 
 	def execute(self, context):
-		print("TOTOR IS NOT HERE")
+		prefs = addon.get_prefs()
+		print("Root collection : {}".format(prefs.root_collection))
+		print("Godot path : {}".format(prefs.godot_project_path))
+		print("Blender repository path : {}".format(
+			prefs.blender_repository_path))
+
+		def save_file_beforehand():
+			self.report(
+				{"WARNING"}, "File must be saved first - skipping export")
+			bpy.ops.wm.save_mainfile('INVOKE_AREA')
+			return {"CANCELLED"}
+
+		def create_destination_folder():
+			"""
+			Define the destination folder and creates it if nonexistent.
+			Return the path name
+			"""
+
+			final_path = bpy.data.filepath.replace(
+				prefs.blender_repository_path, prefs.godot_project_path)
+			gltf_path = os.path.splitext(final_path)[0]
+			if not os.path.isdir(gltf_path):
+				os.makedirs(gltf_path)
+			return gltf_path
+
+		def recurLayerCollection(layerColl, collName):
+			""" Activate the selected collection for export"""
+			found = None
+			if (layerColl.name == collName):
+				return layerColl
+			for layer in layerColl.children:
+				found = recurLayerCollection(layer, collName)
+				if found:
+					return found
+
+		def export_content(scene_collection):
+				
+			def check_name(collection):
+				is_valid = validate_name.validate_name(collection.name)
+				if not is_valid:
+					self.report({"WARNING"},
+								"Name {} is not valid - skipping export".format(collection.name))
+					return {"CANCELLED"}
+
+			def export_to_file(tscn_collection):
+				print("Exporting {}".format(tscn_collection.name))
+
+				filename = tscn_collection.name
+				# Export collection - parameters : https://docs.blender.org/api/current/bpy.ops.export_scene.html?highlight=export_scene#bpy.ops.export_scene.gltf
+				print("Exporting to : {}/{}".format(gltf_path, filename))
+				print("Exporting textures to : {}_{}_textures".format((os.path.splitext(os.path.basename(gltf_path)))[0], filename))
+				bpy.ops.export_scene.gltf(
+					filepath="{}/{}".format(gltf_path, filename),
+					export_format="GLTF_SEPARATE",	# Export glTF Separate (.gltf + .bin + textures), Exports multiple files, with separate JSON, binary and texture data
+					export_texture_dir="{}_{}_textures".format((os.path.splitext(os.path.basename(gltf_path)))[0], filename),	# Textures folder
+					export_copyright=prefs.licence,
+					use_active_collection = True,
+					use_renderable = True,
+					export_cameras=False,
+					export_lights=False,
+					export_apply=True					# Applique les modifiers
+				)
+
+			tscn_collections = [ coll for coll in bpy.data.collections if scene_collection.user_of_id(coll)]
+
+			for tscn in tscn_collections:
+				print("--------------------")
+				check_name(tscn)
+				# Activate proper collection for export
+				layer_collection = bpy.context.view_layer.layer_collection
+				layerColl = recurLayerCollection(layer_collection, tscn.name)
+				if layerColl.exclude:
+					print("{} is not activated - not exported".format(tscn.name))
+				else:
+					print("Set active collection to {}".format(tscn.name))
+					bpy.context.view_layer.active_layer_collection = layerColl
+					export_to_file(tscn)
+
+
+
+
+		if not bpy.data.is_saved:
+			save_file_beforehand()
+		else:
+			try:
+				scn_col = bpy.data.collections[prefs.root_collection]
+			except KeyError:
+				self.report({"WARNING"},
+							"No \"{}\" root collection in the file - skipping export".format(prefs.root_collection))
+				return {"CANCELLED"}
+			
+			# Create the proper destination path
+			gltf_path = create_destination_folder()
+
+			export_content(scn_col)
 			return {"FINISHED"}

addon/operators/readthedocs.py

@@ -1,8 +1,7 @@
 import bpy
 
-
-class KH_OP_readthedocs(bpy.types.Operator):
-	"""Check online documentation"""
+class KH_OT_readthedocs(bpy.types.Operator):
+    """Check online documentation for development"""
 
     bl_idname="kh.readthedocs"
     bl_label="Online documentation"
@@ -12,9 +11,7 @@ class KH_OP_readthedocs(bpy.types.Operator):
     def invoke (self, context, event):
         return self.execute(context)
     
-
     def execute(self, context):
-		bpy.ops.wm.url_open('INVOKE_DEFAULT', url='https://git.numenaute.org/khaganat/mmorpg_khanat/khanat_gamedev_guide')
+        bpy.ops.wm.url_open("INVOKE_DEFAULT", url="https://git.numenaute.org/khaganat/mmorpg_khanat/khanat_gamedev_guide")
         return {"FINISHED"}
         
-

addon/preferences/__init__.py

@@ -0,0 +1,18 @@
+import bpy
+
+from .preferences import KH_Prefs
+
+classes = (
+    KH_Prefs,
+)
+
+def register_preferences():
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)
+    
+
+def unregister_preferences():
+    from bpy.utils import unregister_class
+    for cls in classes:
+        unregister_class(cls)

addon/preferences/preferences.py

@@ -0,0 +1,50 @@
+import bpy
+from bpy.props import StringProperty, IntProperty, BoolProperty
+
+
+from ..common import addon
+
+
+class KH_Prefs(bpy.types.AddonPreferences):
+	bl_idname = addon.addon_name
+
+	# TODO  EnumProperty to get list of projects to choose from
+
+	godot_project_path: StringProperty(
+		name="Godot project path",
+		subtype='DIR_PATH',
+		default="//godot_project/"
+	)
+
+	blender_repository_path: StringProperty(
+		name="Blender repository root",
+		subtype='DIR_PATH',
+		default="//"
+	)
+
+	root_collection: StringProperty(
+		name="Root collection",
+		default="khanat",
+	)
+
+	licence: StringProperty(
+		name="Licence",
+		default="CC BY SA Khaganat",
+	)
+
+	contributor: StringProperty(
+		name="Contributor",
+		default="",
+	)
+
+	def draw(self, context):
+		layout = self.layout
+		box = layout.box()
+		box.prop(self, "godot_project_path")
+		box.prop(self, "blender_repository_path")
+		box.prop(self, "root_collection")
+		layout.split()
+		box = layout.box()
+		box.prop(self, "licence")
+		box.prop(self, "contributor")
+

addon/register/__init__.py

@@ -1,30 +1,31 @@
 
+
+
 def register_addon():
 
-	# Icons
-	from ..icons import register_icons
-	register_icons()
+	from ..preferences import register_preferences
+	register_preferences()
 
-	# Operators
 	from ..operators import register_operators
 	register_operators()
 
-	# Menus
+	from ..icons import register_icons
+	register_icons()
+
 	from ..menus import register_menus
 	register_menus()
 
 
-
 def unregister_addon():
 
-	# Menus
 	from ..menus import unregister_menus
 	unregister_menus()
 
-	# Operators
+	from ..icons import unregister_icons
+	unregister_icons()
+
 	from ..operators import unregister_operators
 	unregister_operators()
 
-	# Icons
-	from ..icons import unregister_icons
-	unregister_icons()
+	from ..preferences import unregister_preferences
+	unregister_preferences()