X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Fmetascene.cc;h=aae7482b5b4f728286bc0a52b0a0ab72d8b2dacd;hp=99a9daf9ca238f880b86672b98416c3dd2a35aed;hb=dbcb9345c23c5c027d808915962843e7db2d14aa;hpb=72b941af07bbf2673539ad4eea073e68d3bcbbfc

diff --git a/src/metascene.cc b/src/metascene.cc
index 99a9daf..aae7482 100644
--- a/src/metascene.cc
+++ b/src/metascene.cc
@@ -10,8 +10,11 @@
 #endif
 
 static bool proc_node(Scene *scn, struct ts_node *node);
+static bool proc_scenefile(Scene *scn, struct ts_node *node);
 static struct ts_attr *attr_inscope(struct ts_node *node, const char *name);
 
+static void print_scene_graph(SceneNode *n, int level);
+
 bool load_scene(Scene *scn, const char *fname)
 {
 	struct ts_node *root = ts_load(fname);
@@ -23,6 +26,10 @@ bool load_scene(Scene *scn, const char *fname)
 
 	bool res = proc_node(scn, root);
 	ts_free_tree(root);
+
+	printf("loaded scene: %s\n", fname);
+	printf("scene graph:\n");
+	print_scene_graph(scn->nodes, 0);
 	return res;
 }
 
@@ -38,25 +45,7 @@ static bool proc_node(Scene *scn, struct ts_node *node)
 
 	// do this last to allow other contents of the node to do their thing
 	if(strcmp(node->name, "scenefile") == 0) {
-		const char *fname = ts_get_attr_str(node, "file");
-		if(fname) {
-			struct ts_attr *adpath = attr_inscope(node, "datapath");
-			if(adpath && adpath->val.type == TS_STRING) {
-				printf("adding data path: %s\n", adpath->val.str);
-				datamap_set_path(adpath->val.str);
-			}
-
-			int namesz = datamap_lookup(fname, 0, 0);
-			char *namebuf = (char*)alloca(namesz + 1);
-			if(datamap_lookup(fname, namebuf, namesz + 1)) {
-				fname = namebuf;
-			}
-
-			if(!(scn->load(fname, SCNLOAD_FLIPTEX))) {
-				return false;
-			}
-		}
-		datamap_reset();
+		return proc_scenefile(scn, node);
 
 	} else if(strcmp(node->name, "remap") == 0) {
 		const char *match = ts_get_attr_str(node, "match");
@@ -69,6 +58,61 @@ static bool proc_node(Scene *scn, struct ts_node *node)
 	return true;
 }
 
+static bool proc_scenefile(Scene *scn, struct ts_node *node)
+{
+	const char *fname = ts_get_attr_str(node, "file");
+	if(fname) {
+		// datapath
+		struct ts_attr *adpath = attr_inscope(node, "datapath");
+		if(adpath && adpath->val.type == TS_STRING) {
+			printf("adding data path: %s\n", adpath->val.str);
+			datamap_set_path(adpath->val.str);
+		}
+
+		// walkmesh
+		char *walkmesh_regexp = 0;
+		struct ts_attr *awmesh = attr_inscope(node, "walkmesh");
+		if(awmesh && awmesh->val.type == TS_STRING) {
+			walkmesh_regexp = awmesh->val.str;
+		}
+
+		int namesz = datamap_lookup(fname, 0, 0);
+		char *namebuf = (char*)alloca(namesz + 1);
+		if(datamap_lookup(fname, namebuf, namesz + 1)) {
+			fname = namebuf;
+		}
+
+		if(!(scn->load(fname, SCNLOAD_FLIPTEX))) {
+			return false;
+		}
+
+		// extract the walk mesh if necessary
+		// XXX as written, this will match even objects loaded by previous scenefile blocks
+		Scene *wscn;
+		if(walkmesh_regexp && (wscn = scn->extract_nodes(walkmesh_regexp))) {
+			// apply all transformations to the meshes
+			wscn->apply_xform();
+
+			int nmeshes = wscn->meshes.size();
+			for(int i=0; i<nmeshes; i++) {
+				Mesh *m = wscn->meshes[i];
+
+				if(scn->walk_mesh) {
+					scn->walk_mesh->append(*m);
+				} else {
+					scn->walk_mesh = m;
+					wscn->remove_mesh(m);	// to save it from destruction
+				}
+			}
+
+			delete wscn;
+		}
+	}
+	datamap_reset();
+
+	return true;
+}
+
 static struct ts_attr *attr_inscope(struct ts_node *node, const char *name)
 {
 	struct ts_attr *attr = 0;
@@ -78,3 +122,23 @@ static struct ts_attr *attr_inscope(struct ts_node *node, const char *name)
 	}
 	return attr;
 }
+
+static void print_scene_graph(SceneNode *n, int level)
+{
+	if(!n) return;
+
+	for(int i=0; i<level; i++) {
+		fputs("  ", stdout);
+	}
+
+	int nobj = n->get_num_objects();
+	if(nobj) {
+		printf("%s - %d obj\n", n->get_name(), n->get_num_objects());
+	} else {
+		printf("%s\n", n->get_name());
+	}
+
+	for(int i=0; i<n->get_num_children(); i++) {
+		print_scene_graph(n->get_child(i), level + 1);
+	}
+}