text: /*************************************************************************/
  /*  collision_object_2d.h                                                */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  #ifndef COLLISION_OBJECT_2D_H
  #define COLLISION_OBJECT_2D_H
  
  #include "scene/2d/node_2d.h"
  #include "scene/resources/shape_2d.h"
  
  class CollisionObject2D : public Node2D {
  
  	GDCLASS(CollisionObject2D, Node2D)
  
  	bool area;
  	RID rid;
  	bool pickable;
  
  	struct ShapeData {
  
  		Object *owner;
  		Transform2D xform;
  		struct Shape {
  			Ref<Shape2D> shape;
  			int index;
  		};
  
  		Vector<Shape> shapes;
  		bool disabled;
  		bool one_way_collision;
  
  		ShapeData() {
  			disabled = false;
  			one_way_collision = false;
  			owner = NULL;
  		}
  	};
  
  	int total_subshapes;
  
  	Map<uint32_t, ShapeData> shapes;
  
  protected:
  	CollisionObject2D(RID p_rid, bool p_area);
  
  	void _notification(int p_what);
  	static void _bind_methods();
  
  	void _update_pickable();
  	friend class Viewport;
  	void _input_event(Node *p_viewport, const Ref<InputEvent> &p_input_event, int p_shape);
  	void _mouse_enter();
  	void _mouse_exit();
  
  public:
  	uint32_t create_shape_owner(Object *p_owner);
  	void remove_shape_owner(uint32_t owner);
  	void get_shape_owners(List<uint32_t> *r_owners);
  	Array _get_shape_owners();
  
  	void shape_owner_set_transform(uint32_t p_owner, const Transform2D &p_transform);
  	Transform2D shape_owner_get_transform(uint32_t p_owner) const;
  	Object *shape_owner_get_owner(uint32_t p_owner) const;
  
  	void shape_owner_set_disabled(uint32_t p_owner, bool p_disabled);
  	bool is_shape_owner_disabled(uint32_t p_owner) const;
  
  	void shape_owner_set_one_way_collision(uint32_t p_owner, bool p_enable);
  	bool is_shape_owner_one_way_collision_enabled(uint32_t p_owner) const;
  
  	void shape_owner_add_shape(uint32_t p_owner, const Ref<Shape2D> &p_shape);
  	int shape_owner_get_shape_count(uint32_t p_owner) const;
  	Ref<Shape2D> shape_owner_get_shape(uint32_t p_owner, int p_shape) const;
  	int shape_owner_get_shape_index(uint32_t p_owner, int p_shape) const;
  
  	void shape_owner_remove_shape(uint32_t p_owner, int p_shape);
  	void shape_owner_clear_shapes(uint32_t p_owner);
  
  	uint32_t shape_find_owner(int p_shape_index) const;
  
  	void set_pickable(bool p_enabled);
  	bool is_pickable() const;
  
  	_FORCE_INLINE_ RID get_rid() const { return rid; }
  
  	CollisionObject2D();
  	~CollisionObject2D();
  };
  
  #endif // COLLISION_OBJECT_2D_H
  