/**************************************************************************/
/*  cull_instance.h                                                       */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* 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 CULL_INSTANCE_H
#define CULL_INSTANCE_H

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

class CullInstance : public Spatial {
	GDCLASS(CullInstance, Spatial);

public:
	enum PortalMode : unsigned int {
		PORTAL_MODE_STATIC, // not moving within a room
		PORTAL_MODE_DYNAMIC, //  moving within room
		PORTAL_MODE_ROAMING, // moving between rooms
		PORTAL_MODE_GLOBAL, // frustum culled only
		PORTAL_MODE_IGNORE, // don't show at all - e.g. manual bounds, hidden portals
	};

	void set_portal_mode(CullInstance::PortalMode p_mode);
	CullInstance::PortalMode get_portal_mode() const;

	void set_include_in_bound(bool p_enabled) { _include_in_bound = p_enabled; }
	bool get_include_in_bound() const { return _include_in_bound; }

	void set_allow_merging(bool p_enabled) { _allow_merging = p_enabled; }
	bool get_allow_merging() const { return _allow_merging; }

	void set_portal_autoplace_priority(int p_priority) { _portal_autoplace_priority = p_priority; }
	int get_portal_autoplace_priority() const { return _portal_autoplace_priority; }

	CullInstance();

protected:
	virtual void _refresh_portal_mode() = 0;

	static void _bind_methods();

private:
	PortalMode _portal_mode;
	bool _include_in_bound : 1;
	bool _allow_merging : 1;

	// Allows instances to prefer to be autoplaced
	// in specific RoomGroups. This allows building exteriors
	// to be autoplaced in outside RoomGroups, allowing a complete
	// exterior / interior of building in one reusable Scene.
	// The default value 0 gives no preference (chooses the highest priority).
	// All other values will autoplace in the selected RoomGroup priority by preference.
	int _portal_autoplace_priority;
};

#endif // CULL_INSTANCE_H