material editing in scene metafile

[laserbrain_demo] / src / scene.cc

diff --git a/src/scene.cc b/src/scene.cc
index 0d23930..f116150 100644 (file)
--- a/src/scene.cc
+++ b/src/scene.cc
@@ -61,6 +61,56 @@ static void destroy_node_tree(SceneNode *n)
 
 // Scene::load defined in sceneload.cc
 
+bool Scene::merge(Scene *scn)
+{
+       if(texset != scn->texset) {
+               // TODO handle this properly
+               error_log("for now only able to merge scenes using the same texture set\n");
+               return false;
+       }
+
+       if(walk_mesh) {
+               if(scn->walk_mesh) {
+                       walk_mesh->append(*scn->walk_mesh);
+                       delete scn->walk_mesh;
+                       scn->walk_mesh = 0;
+               }
+       } else {
+               walk_mesh = scn->walk_mesh;
+               scn->walk_mesh = 0;
+       }
+
+       int nmeshes = scn->meshes.size();
+       for(int i=0; i<nmeshes; i++) {
+               meshes.push_back(scn->meshes[i]);
+       }
+       scn->meshes.clear();
+
+       int nobj = scn->objects.size();
+       for(int i=0; i<nobj; i++) {
+               objects.push_back(scn->objects[i]);
+       }
+       scn->objects.clear();
+
+       if(nodes) {
+               int nchildren = scn->nodes ? scn->nodes->get_num_children() : 0;
+               for(int i=0; i<nchildren; i++) {
+                       SceneNode *n = scn->nodes->get_child(i);
+                       scn->nodes->remove_child(n);
+                       nodes->add_child(n);
+               }
+               if(scn->nodes && scn->nodes->get_num_objects() > 0) {
+                       warning_log("merging with scene which has objects in its root node. these objects will not be merged!\n");
+               }
+               delete scn->nodes;
+       } else {
+               nodes = scn->nodes;
+       }
+       scn->nodes = 0;
+
+       return true;
+}
+
 void Scene::add_object(Object *obj)
 {
        objects.push_back(obj);