rebuilding roads done, closes #20

src/modules/stream/road_processing.cpp

@@ -56,6 +56,7 @@ struct RoadLinesProcessing {
 		int i;
 		List<String> keys;
 		RoadLinesData *rld = RoadLinesData::get_singleton();
+		edges.clear();
 		rld->get_road_lines_key_list(&keys);
 		List<String>::Element *e = keys.front();
 		while (e) {
@@ -184,7 +185,7 @@ struct RoadLinesProcessing {
 			singleton = nullptr;
 		}
 	}
-	void road_setup(Node *base)
+	void road_setup()
 	{
 		RoadLinesData *rld = RoadLinesData::get_singleton();
 		std::vector<Vector3> road_lines_nodes;
@@ -195,6 +196,7 @@ struct RoadLinesProcessing {
 		rld->process_lines(road_lines_nodes_hash, road_lines_nodes);
 		create_nodes(road_lines_nodes);
 		create_edges();
+		wedges.clear();
 		build_wedges(wedges);
 		print_line("ROAD SETUP DONE");
 	}
@@ -581,13 +583,18 @@ public:
 		new_mesh->surface_set_name(0, "main");
 		return new_mesh;
 	}
+	void clear_road_meshes()
+	{
+		int i;
+		for (i = 0; i < (int)nodes_mi.size(); i++)
+			nodes_mi[i]->queue_delete();
+		nodes_mi.clear();
+	}
 	void create_road_meshes(Node *base)
 	{
 		int i;
 		RoadLinesProcessing *r = RoadLinesProcessing::get_singleton();
-		for (i = 0; i < (int)nodes_mi.size(); i++)
-			nodes_mi[i]->queue_delete();
-		nodes_mi.clear();
+		clear_road_meshes();
 		for (i = 0; i < (int)r->nodes.size(); i++) {
 			Ref<ArrayMesh> mesh =
 				build_road(r->wedges[i], "common/center",
@@ -625,10 +632,15 @@ RoadMeshProcessing *RoadMeshProcessing::singleton;
 
 void RoadProcessing::road_setup(Node *target)
 {
-	RoadLinesProcessing::get_singleton()->road_setup(target);
+	RoadLinesProcessing::get_singleton()->road_setup();
 	RoadMeshProcessing::get_singleton()->create_road_meshes(target);
 }
 
+void RoadProcessing::remove_road_meshes(Node *target)
+{
+	RoadMeshProcessing::get_singleton()->clear_road_meshes();
+}
+
 void RoadProcessing::load_data()
 {
 	/* Not needed but still */