godot/scene/3d/area.h

/*************************************************************************/
/*  area.h                                                               */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
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/* 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   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/*************************************************************************/
#ifndef AREA_H
#define AREA_H

#include "scene/3d/collision_object.h"
#include "vset.h"

class Area : public CollisionObject {

	OBJ_TYPE( Area, CollisionObject );
public:

	enum SpaceOverride {
		SPACE_OVERRIDE_DISABLED,
		SPACE_OVERRIDE_COMBINE,
		SPACE_OVERRIDE_REPLACE
	};
private:


	SpaceOverride space_override;
	Vector3 gravity_vec;
	real_t gravity;
	bool gravity_is_point;
	real_t density;
	int priority;
	bool monitoring;
	bool locked;


	void _body_inout(int p_status,const RID& p_body, int p_instance, int p_body_shape,int p_area_shape);

	void _body_enter_tree(ObjectID p_id);
	void _body_exit_tree(ObjectID p_id);

	struct ShapePair {

		int body_shape;
		int area_shape;
		bool operator<(const ShapePair& p_sp) const {
			if (body_shape==p_sp.body_shape)
				return area_shape < p_sp.area_shape;
			else
				return body_shape < p_sp.body_shape;
		}

		ShapePair() {}
		ShapePair(int p_bs, int p_as) { body_shape=p_bs; area_shape=p_as; }
	};

	struct BodyState {

		int rc;
		bool in_tree;
		VSet<ShapePair> shapes;
	};

	Map<ObjectID,BodyState> body_map;
	void _clear_monitoring();


protected:

	void _notification(int p_what);
	static void _bind_methods();
public:

	void set_space_override_mode(SpaceOverride p_mode);
	SpaceOverride get_space_override_mode() const;

	void set_gravity_is_point(bool p_enabled);
	bool is_gravity_a_point() const;

	void set_gravity_vector(const Vector3& p_vec);
	Vector3 get_gravity_vector() const;

	void set_gravity(real_t p_gravity);
	real_t get_gravity() const;

	void set_density(real_t p_density);
	real_t get_density() const;

	void set_priority(real_t p_priority);
	real_t get_priority() const;

	void set_enable_monitoring(bool p_enable);
	bool is_monitoring_enabled() const;

	Array get_overlapping_bodies() const;


	Area();
	~Area();
};

VARIANT_ENUM_CAST(Area::SpaceOverride);

#endif // AREA__H