$#include "Urho2D/Drawable2D.h" enum BlendMode {}; const float PIXEL_SIZE; class Drawable2D : public Drawable { public: void SetLayer(int layer); void SetOrderInLayer(int orderInLayer); int GetLayer() const; int GetOrderInLayer() const; tolua_property__get_set int layer; tolua_property__get_set int orderInLayer; };