fix(tools:bevy_gltf_blueprints): (#27)

* fix(tools:bevy_gltf_blueprints):
 * fixed missing rotation in blueprint collections (if there is any)
 * fixed similar issues with scale 
 * fixed issues with active collection at the time of saving/export being poluted by temporary data
* refactor(bevy_gltf_blueprints): minor cleanups

crates/bevy_gltf_blueprints/src/spawn_from_blueprints.rs

@@ -50,7 +50,7 @@ pub(crate) fn spawn_from_blueprints(
     asset_server: Res<AssetServer>,
     blueprints_config: Res<BluePrintsConfig>,
 ) {
-    for (entity, name, blupeprint_name, global_transform) in spawn_placeholders.iter() {
+    for (entity, name, blupeprint_name, transform) in spawn_placeholders.iter() {
         debug!("need to spawn {:?}", blupeprint_name.0);
         let what = &blupeprint_name.0;
         let model_file_name = format!("{}.glb", &what);
@@ -59,7 +59,6 @@ pub(crate) fn spawn_from_blueprints(
 
         debug!("attempting to spawn {:?}", model_path);
         let scene: Handle<Gltf> = asset_server.load(model_path);
-        // let scene = game_assets.models.get(&model_path).expect(&format!("no matching model {:?} found", model_path));
 
         let world = game_world.single_mut();
         let world = world.1[0]; // FIXME: dangerous hack because our gltf data have a single child like this, but might not always be the case
@@ -75,21 +74,16 @@ pub(crate) fn spawn_from_blueprints(
             .expect("there should be at least one named scene in the gltf file to spawn");
         let scene = &gltf.named_scenes[main_scene_name];
 
-        //spawn_requested_events.send(SpawnRequestedEvent { what: "enemy".into(), position, amount: 1, spawner_id: None });
         let child_scene = commands
             .spawn((
                 SceneBundle {
                     scene: scene.clone(),
-                    transform: global_transform.clone(),
+                    transform: transform.clone(),
                     ..Default::default()
                 },
                 bevy::prelude::Name::from(["scene_wrapper", &name.clone()].join("_")),
                 // Parent(world) // FIXME/ would be good if this worked directly
                 SpawnedRoot,
-                /*AnimationHelper{ // TODO: insert this at the ENTITY level, not the scene level
-                  named_animations: gltf.named_animations.clone(),
-                  // animations: gltf.named_animations.values().clone()
-                },*/
                 Original(entity),
             ))
             .id();

crates/bevy_gltf_blueprints/src/spawn_post_process.rs

@@ -17,7 +17,6 @@ pub(crate) struct SpawnedRootProcessed;
 
 /// this system updates the first (and normally only) child of a scene flaged SpawnedRoot
 /// - adds a name based on parent component (spawned scene) which is named on the scene name/prefab to be instanciated
-/// - adds the initial physics impulse (FIXME: we would need to add a temporary physics component to those who do not have it)
 // FIXME: updating hierarchy does not work in all cases ! this is sadly dependant on the structure of the exported blend data
 // - blender root-> object with properties => WORKS
 // - scene instance -> does not work
@@ -78,28 +77,20 @@ pub(crate) fn update_spawned_root_first_child(
         commands.entity(*root_entity).insert((
             bevy::prelude::Name::from(name.clone()),
             // ItemType {name},
-            // Spawned, // FIXME: not sure
         ));
 
         // flag the spawned_root as being processed
         commands.entity(scene_instance).insert(SpawnedRootProcessed);
 
-        // let original_transforms =
         // parent is either the world or an entity with a marker (BlueprintName)
         commands.entity(parent.get()).add_child(*root_entity);
-        // commands.entity(*root_entity).despawn_recursive();
-        // commands.entity(parent.get()).push_children(&actual_stuff);
-        //commands.entity(*root_entity).log_components();
       
         let matching_animation_helper = animation_helpers.get(scene_instance);
 
-        // println!("WE HAVE SOME ADDED ANIMATION PLAYERS {:?}", matching_animation_helper);
         if let Ok(anim_helper) = matching_animation_helper {
             for (added, _) in added_animation_helpers.iter() {
                 commands.entity(added).insert(AnimationHelper {
-                    // TODO: insert this at the ENTITY level, not the scene level
                     named_animations: anim_helper.named_animations.clone(),
-                    // animations: gltf.named_animations.values().clone()
                 });
             }
         }

tools/gltf_auto_export/gltf_auto_export.py

@@ -1,8 +1,8 @@
 bl_info = {
     "name": "gltf_auto_export",
     "author": "kaosigh",
-    "version": (0, 2),
-    "blender": (3, 4, 1),
+    "version": (0, 3),
+    "blender": (3, 4, 0),
     "location": "File > Import-Export",
     "description": "glTF/glb auto-export",
     "warning": "",
@@ -30,9 +30,7 @@ from bpy.props import (BoolProperty,
 #see here for original gltf exporter infos https://github.com/KhronosGroup/glTF-Blender-IO/blob/main/addons/io_scene_gltf2/__init__.py
 @persistent
 def deps_update_handler(scene, depsgraph):
-    
     print("depsgraph_update_post", scene.name)
-    print("toto")
     print("-------------")
     changed_objects = []
     for obj in depsgraph.updates:
@@ -91,7 +89,9 @@ def get_collection_hierarchy(root_col, levels=1):
 # the active collection is a View Layer concept, so you actually have to find the active LayerCollection
 # which must be done recursively
 def find_layer_collection_recursive(find, col):
+    print("root collection", col)
     for c in col.children:
+        print("child collection", c)
         if c.collection == find:
             return c
     return None
@@ -129,18 +129,16 @@ def make_empty2(name, location, collection):
     collection.objects.link( empty_obj )
     return empty_obj
 
-def make_empty3(name, location, collection): 
+def make_empty3(name, location, rotation, scale, collection): 
     original_active_object = bpy.context.active_object
-    bpy.ops.object.empty_add(type='PLAIN_AXES', location=location)
+    bpy.ops.object.empty_add(type='PLAIN_AXES', location=location, rotation=rotation, scale=scale)
     empty_obj = bpy.context.active_object
     empty_obj.name = name
-    collection.objects.link( empty_obj )
+    empty_obj.scale = scale # scale is not set correctly ?????
     bpy.context.view_layer.objects.active = original_active_object
     return empty_obj
 
-
 # generate a copy of a scene that replaces collection instances with empties
-# FIXME: will not preserve original names
 # alternative: copy original names before creating a new scene, & reset them
 # or create empties, hide original ones, and do the same renaming trick
 def generate_hollow_scene(scene): 
@@ -149,6 +147,8 @@ def generate_hollow_scene(scene):
     copy_root_collection = temp_scene.collection
     scene_objects = [o for o in root_collection.objects]
 
+    # we set our active scene to be this one : this is needed otherwise the stand-in empties get generated in the wrong scene
+    bpy.context.window.scene = temp_scene
 
     found = find_layer_collection_recursive(copy_root_collection, bpy.context.view_layer.layer_collection)
     if found:
@@ -171,7 +171,7 @@ def generate_hollow_scene(scene):
             original_names.append(original_name)
 
             object.name = original_name + "____bak"
-            empty_obj = make_empty3(original_name, object.location, copy_root_collection)
+            empty_obj = make_empty3(original_name, object.location, object.rotation_euler, object.scale, copy_root_collection)
             """we inject the collection/blueprint name, as a component called 'BlueprintName', but we only do this in the empty, not the original object"""
             empty_obj['BlueprintName'] = '"'+collection_name+'"'
             empty_obj['SpawnHere'] = ''
@@ -194,9 +194,7 @@ def clear_hollow_scene(temp_scene, original_scene, original_names):
 
     for object in scene_objects:
         if object.instance_type == 'COLLECTION':
-            print("object name to reset", object.name)
             if object.name.endswith("____bak"):
-                print("reseting")
                 object.name = object.name.replace("____bak", "")
 
     # remove empties (only needed when we go via ops ????)
@@ -204,7 +202,11 @@ def clear_hollow_scene(temp_scene, original_scene, original_names):
     scene_objects = [o for o in root_collection.objects]
     for object in scene_objects:
         if object.type == 'EMPTY':
+            if hasattr(object, "SpawnHere"):
                 bpy.data.objects.remove(object, do_unlink=True)
+            else: 
+                bpy.context.scene.collection.objects.unlink(object)
+            #bpy.data.objects.remove(object, do_unlink=True)
 
     bpy.data.scenes.remove(temp_scene)