From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 24 May 2019 15:43:19 +0000 (+0300)
Subject: Allow tagging objects in a scene file for retrieval after loading
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=d5c26741ed3952dd54c8a7f43ad42ba79bf2d977

Allow tagging objects in a scene file for retrieval after loading
---

diff --git a/blender/io_mspgl/export_scene.py b/blender/io_mspgl/export_scene.py
index 3b2147d1..9b36c48f 100644
--- a/blender/io_mspgl/export_scene.py
+++ b/blender/io_mspgl/export_scene.py
@@ -108,7 +108,7 @@ class SceneExporter:
 
 		for o in objs:
 			obj_res = resources[prototypes[o.name].name+".object"]
-			st = scene_res.create_reference_statement("object", obj_res)
+			st = scene_res.create_reference_statement("object", obj_res, o.name)
 			# XXX Parent relationships screw up the location and rotation
 			st.sub.append(Statement("position", o.location[0], o.location[1], o.location[2]))
 			if o.rotation_mode=="AXIS_ANGLE":
diff --git a/source/scene.cpp b/source/scene.cpp
index ef1f246b..e6c62e80 100644
--- a/source/scene.cpp
+++ b/source/scene.cpp
@@ -75,16 +75,37 @@ bool Scene::frustum_cull(const Renderable &renderable) const
 
 
 Scene::Loader::Loader(Scene &s, Collection &c):
-	DataFile::CollectionObjectLoader<Scene>(s, &c)
+	DataFile::CollectionObjectLoader<Scene>(s, &c),
+	content(0)
+{
+	init();
+}
+
+Scene::Loader::Loader(Scene &s, Collection &c, ContentMap &m):
+	DataFile::CollectionObjectLoader<Scene>(s, &c),
+	content(&m)
+{
+	init();
+}
+
+void Scene::Loader::init()
 {
 	add("object", &Loader::object);
+	add("object", &Loader::object_tagged);
 }
 
 void Scene::Loader::object(const string &n)
+{
+	object_tagged(n, string());
+}
+
+void Scene::Loader::object_tagged(const string &n, const string &t)
 {
 	RefPtr<AnimatedObject> anob = new AnimatedObject(get_collection().get<GL::Object>(n));
 	load_sub(*anob);
 	obj.add(*anob);
+	if(content && !t.empty())
+		(*content)[t] = anob.get();
 	obj.owned_data.push_back(anob.release());
 }
 
diff --git a/source/scene.h b/source/scene.h
index 9e90b128..639a467f 100644
--- a/source/scene.h
+++ b/source/scene.h
@@ -21,13 +21,23 @@ public:
 	class Loader: public DataFile::CollectionObjectLoader<Scene>
 	{
 	public:
-		Loader(Scene &, Collection &);
+		typedef std::map<std::string, Renderable *> ContentMap;
+
+	private:
+		ContentMap *content;
 
+	public:
+		Loader(Scene &, Collection &);
+		Loader(Scene &, Collection &, ContentMap &);
 	private:
+		void init();
+
 		void object(const std::string &);
+		void object_tagged(const std::string &, const std::string &);
 	};
 
 protected:
+	// XXX If a loaded renderable is removed from the scene it needs to be removed from here as well
 	std::vector<Renderable *> owned_data;
 	mutable Matrix culling_matrix;
 	mutable Vector4 frustum_edges[6];