/*************************************************************************/
/*  ray_cast.h                                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
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/* "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    */
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/*************************************************************************/
#ifndef RAY_CAST_H
#define RAY_CAST_H

#include "scene/3d/spatial.h"

class RayCast : public Spatial {

	GDCLASS(RayCast, Spatial);

	bool enabled;
	bool collided;
	ObjectID against;
	int against_shape;
	Vector3 collision_point;
	Vector3 collision_normal;

	Vector3 cast_to;

	Set<RID> exclude;

	uint32_t collision_mask;

	Node *debug_shape;
	Ref<Material> debug_material;

	void _create_debug_shape();
	void _update_debug_shape();
	void _clear_debug_shape();

protected:
	void _notification(int p_what);
	void _update_raycast_state();
	static void _bind_methods();

public:
	void set_enabled(bool p_enabled);
	bool is_enabled() const;

	void set_cast_to(const Vector3 &p_point);
	Vector3 get_cast_to() const;

	void set_collision_mask(uint32_t p_mask);
	uint32_t get_collision_mask() const;

	void set_collision_mask_bit(int p_bit, bool p_value);
	bool get_collision_mask_bit(int p_bit) const;

	void force_raycast_update();
	bool is_colliding() const;
	Object *get_collider() const;
	int get_collider_shape() const;
	Vector3 get_collision_point() const;
	Vector3 get_collision_normal() const;

	void add_exception_rid(const RID &p_rid);
	void add_exception(const Object *p_object);
	void remove_exception_rid(const RID &p_rid);
	void remove_exception(const Object *p_object);
	void clear_exceptions();

	RayCast();
};

#endif // RAY_CAST_H