Blender Script for Automatically Copying files to a Godot Game Project

skellig-export.py

# This accompanies my video here: https://www.youtube.com/watch?v=v23xZHJdtLE
# Mainly meant for learning purposes not for something to use unless you really know what 
# you're doing. Licensed as MIT.

import bpy
import pathlib
import os

SKELLIG_MESH_DIR = "C:\\YOUR_GAME_PATH\\meshes\\"
ASSET_PATH_SEGMENT = "blender\\"

VALID_TYPES = [
    "characters",
    "levels"
]
      
class SkelligExportScene(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "object.skellig_export"
    bl_label = "Skellig Export Scene"

    @classmethod
    def poll(cls, context):
        return context.active_object is not None

    def execute(self, context):
        self.export(context)
        return {'FINISHED'}

    def export(self, context):
        path = bpy.path.abspath("//")

        # Make sure it has skellig-assets\blender in there
        assets_path_idx = path.find(ASSET_PATH_SEGMENT)
        if assets_path_idx == -1:
            self.report({"ERROR"}, "Can't run skellig export from this path")
            return
        
        mesh_type = path[assets_path_idx + len(ASSET_PATH_SEGMENT):-1]

        export_dir = SKELLIG_MESH_DIR + mesh_type
        if not os.path.exists(export_dir):
            self.report({"ERROR"}, export_dir + " does not exist")
            return
        
        if not any([x for x in VALID_TYPES if mesh_type.startswith(x)]):
            self.report({"ERROR"}, "Don't know how to export " + mesh_type)
            return
        
        filename = pathlib.Path(bpy.data.filepath).stem

        export_path = export_dir + "\\" + filename + ".glb"

        shown = []
        placeholders = []
        
        for ob in context.scene.objects:
            if ob.name.endswith("-colonly") and not(ob.visible_get()):
                ob.hide_set(False)
                shown.append(ob)
            if ob.name.endswith("-placeholder") and ob.visible_get():
                ob.hide_set(True)
                placeholders.append(ob)
                
        result = bpy.ops.export_scene.gltf(
            filepath=export_path,
            export_materials="EXPORT",
            export_image_format="NONE",
            use_visible=True,
            export_apply=True
        )
        
        for ob in placeholders:
            ob.hide_set(False)
            
        for ob in shown:
            ob.hide_set(True)

        self.report({"INFO"}, "Exported " + filename)


def menu_func(self, context):
    self.layout.operator(SkelligExportScene.bl_idname, text=SkelligExportScene.bl_label)

def register():
    bpy.utils.register_class(SkelligExportScene)
    bpy.types.VIEW3D_MT_object.append(menu_func)

def unregister():
    bpy.utils.unregister_class(SkelligExportScene)
    bpy.types.VIEW3D_MT_object.remove(menu_func)


if __name__ == "__main__":
    register()