implemented application and scenegraph

engine/SceneGraph.cpp

@@ -0,0 +1,35 @@
+#include "SceneGraph.h"
+
+namespace BlueCore
+{
+
+SceneGraph::SceneGraph()
+{
+	_RootNode = new SceneNode();
+}
+SceneGraph::~SceneGraph()
+{
+
+}
+
+SceneNode* SceneGraph::getRootNode()
+{
+	return _RootNode.pointer();
+}
+
+void SceneGraph::setCamera(Camera *camera)
+{
+	_Camera = camera;
+}
+
+void SceneGraph::update(Scalar time)
+{
+	_RootNode->update (time);
+}
+
+void SceneGraph::queue (RenderQueue *queue)
+{
+	_RootNode->queue (queue, _Camera);
+}
+
+}