added gpudemo

demo/donttouch/btCpuDynamicsWorld.h

@@ -0,0 +1,24 @@
+
+#ifndef BT_CPU_DYNAMICS_WORLD_H
+#define BT_CPU_DYNAMICS_WORLD_H
+
+class btDefaultCollisionConfiguration;
+class btCollisionDispatcher;
+struct btDbvtBroadphase;
+class btSequentialImpulseConstraintSolver;
+
+#include "BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h"
+
+class btCpuDynamicsWorld : public btDiscreteDynamicsWorld
+{
+	
+public:
+	
+	btCpuDynamicsWorld();
+	
+	virtual ~btCpuDynamicsWorld();
+
+
+};
+
+#endif //BT_CPU_DYNAMICS_WORLD_H