/*************************************************************************/
/*  world_2d.h                                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 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 WORLD_2D_H
#define WORLD_2D_H

#include "core/project_settings.h"
#include "core/resource.h"
#include "servers/physics_2d_server.h"

class VisibilityNotifier2D;
class Viewport;
struct SpatialIndexer2D;

class World2D : public Resource {

	GDCLASS(World2D, Resource);

	RID canvas;
	RID space;

	SpatialIndexer2D *indexer;

protected:
	static void _bind_methods();
	friend class Viewport;
	friend class VisibilityNotifier2D;

	void _register_viewport(Viewport *p_viewport, const Rect2 &p_rect);
	void _update_viewport(Viewport *p_viewport, const Rect2 &p_rect);
	void _remove_viewport(Viewport *p_viewport);

	void _register_notifier(VisibilityNotifier2D *p_notifier, const Rect2 &p_rect);
	void _update_notifier(VisibilityNotifier2D *p_notifier, const Rect2 &p_rect);
	void _remove_notifier(VisibilityNotifier2D *p_notifier);

	void _update();

public:
	RID get_canvas();
	RID get_space();

	Physics2DDirectSpaceState *get_direct_space_state();

	void get_viewport_list(List<Viewport *> *r_viewports);

	World2D();
	~World2D();
};

#endif // WORLD_2D_H
