added very crude little LuaDemo, to create physics objects using Lua scripts (very preliminary)

Demos3/bullet2/LuaDemo/LuaDemo.h

@@ -0,0 +1,29 @@
+#ifndef LUA_DEMO_H
+#define LUA_DEMO_H
+
+#include "LinearMath/btVector3.h"
+#include "../BasicDemo/Bullet2RigidBodyDemo.h"
+
+
+//We use a struct instead of class, to make it easier to interface with Lua
+struct LuaDemo : public Bullet2RigidBodyDemo
+{
+
+public:
+
+	static BulletDemoInterface* MyCreateFunc(SimpleOpenGL3App* app)
+	{
+		return new LuaDemo(app);
+	}
+
+	LuaDemo(SimpleOpenGL3App* app);
+	virtual ~LuaDemo();
+	
+	virtual void	initPhysics();
+	virtual void	exitPhysics();
+	virtual void	renderScene();
+	virtual void	stepSimulation(float dt);
+};
+
+
+#endif //BASIC_DEMO_H