add a few collision examples to test a C API with various back-ends

examples/Collision/Internal/Bullet2CollisionSdk.h

@@ -0,0 +1,34 @@
+#ifndef BULLET2_COLLISION_SDK_H
+#define BULLET2_COLLISION_SDK_H
+
+#include "CollisionSdkInterface.h"
+
+class Bullet2CollisionSdk : public CollisionSdkInterface
+{
+	struct Bullet2CollisionSdkInternalData* m_internalData;
+	
+public:
+	
+	Bullet2CollisionSdk();
+	
+	virtual ~Bullet2CollisionSdk();
+	
+	virtual plCollisionWorldHandle createCollisionWorld();
+	
+	virtual void deleteCollisionWorld(plCollisionWorldHandle worldHandle);
+
+	virtual plCollisionShapeHandle createSphereShape(plReal radius);
+	
+	virtual void deleteShape(plCollisionShapeHandle shape);
+	
+	virtual void addCollisionObject(plCollisionWorldHandle world, plCollisionObjectHandle object);
+	virtual  void removeCollisionObject(plCollisionWorldHandle world, plCollisionObjectHandle object);
+	
+	virtual  plCollisionObjectHandle createCollisionObject(  void* user_data,  plCollisionShapeHandle cshape );
+	virtual  void deleteCollisionObject(plCollisionObjectHandle body);
+	
+	
+	static plCollisionSdkHandle createBullet2SdkHandle();
+};
+
+#endif //BULLET2_COLLISION_SDK_H