X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fscene.cc;fp=src%2Fscene.cc;h=27be807f47069b1602964c2679d3635e9f89905d;hb=b7c92831285013b2a0783bccaf3d900545ebb5ba;hp=0000000000000000000000000000000000000000;hpb=a58455a92c7ecab980cbe1b7e282aeb6bfe7e889;p=laserbrain_demo

diff --git a/src/scene.cc b/src/scene.cc
new file mode 100644
index 0000000..27be807
--- /dev/null
+++ b/src/scene.cc
@@ -0,0 +1,63 @@
+#include "scene.h"
+
+static void destroy_node_tree(SceneNode *n);
+
+Scene::Scene()
+{
+	nodes = 0;
+}
+
+Scene::~Scene()
+{
+	destroy();
+}
+
+void Scene::destroy()
+{
+	destroy_node_tree(nodes);
+	nodes = 0;
+}
+
+// Scene::load defined in sceneload.cc
+
+void Scene::update(float dt)
+{
+	if(nodes) {
+		nodes->update(dt);
+	}
+
+	int nobj = objects.size();
+	for(int i=0; i<nobj; i++) {
+		if(!objects[i]->node) {
+			// only update objects which don't belong to a scenegraph node
+			// to avoid updating objects twice
+			objects[i]->update(dt);
+		}
+	}
+}
+
+void Scene::draw() const
+{
+	if(!objects.empty()) {
+		int nobj = objects.size();
+		for(int i=0; i<nobj; i++) {
+			objects[i]->draw();
+		}
+	} else {
+		int nmesh = meshes.size();
+		for(int i=0; i<nmesh; i++) {
+			meshes[i]->draw();
+		}
+	}
+}
+
+static void destroy_node_tree(SceneNode *n)
+{
+	if(!n) return;
+
+	int nsub = n->get_num_children();
+	for(int i=0; i<nsub; i++) {
+		destroy_node_tree(n->get_child(i));
+	}
+	delete n;
+}