/* $Id$ */

/*

 * This file is part of OpenTTD.

 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.

 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/** @file disaster_vehicle.h All disaster vehicles. */

#ifndef DISASTER_VEHICLE_H

#define DISASTER_VEHICLE_H

#include "vehicle_base.h"

/** Different sub types of disaster vehicles. */

enum DisasterSubType {

	ST_ZEPPELINER,               ///< Zeppelin, crashes at airports.

	ST_ZEPPELINER_SHADOW,        ///< Shadow of the zeppelin.

	ST_SMALL_UFO,                ///< Small UFO, tries to find a road vehicle to destroy.

	ST_SMALL_UFO_SHADOW,         ///< Shadow of small UFO

	ST_AIRPLANE,                 ///< Airplane destroying an oil refinery

	ST_AIRPLANE_SHADOW,          ///< Shadow of airplane

	ST_HELICOPTER,               ///< Helicopter destroying a factory.

	ST_HELICOPTER_SHADOW,        ///< Shadow of helicopter.

	ST_HELICOPTER_ROTORS,        ///< Rotors of helicopter.

	ST_BIG_UFO,                  ///< Big UFO, finds a piece of railroad to "park" on

	ST_BIG_UFO_SHADOW,           ///< Shadow of the big UFO

	ST_BIG_UFO_DESTROYER,        ///< Aircraft the will bomb the big UFO

	ST_BIG_UFO_DESTROYER_SHADOW, ///< Shadow of the aircraft.

	ST_SMALL_SUBMARINE,          ///< Small submarine, pops up in the oceans but doesn't do anything

	ST_BIG_SUBMARINE,            ///< Big submarine, pops up in the oceans but doesn't do anything

};

/**

 * Disasters, like submarines, skyrangers and their shadows, belong to this class.

 */

struct DisasterVehicle FINAL : public SpecializedVehicle<DisasterVehicle, VEH_DISASTER> {

	SpriteID image_override;            ///< Override for the default disaster vehicle sprite.

	VehicleID big_ufo_destroyer_target; ///< The big UFO that this destroyer is supposed to bomb.

	/** For use by saveload. */

	DisasterVehicle() : SpecializedVehicleBase() {}

	DisasterVehicle(int x, int y, Direction direction, DisasterSubType subtype, VehicleID big_ufo_destroyer_target = VEH_INVALID);

	/** We want to 'destruct' the right class. */

	virtual ~DisasterVehicle() {}

	void UpdatePosition(int x, int y, int z);

	void UpdateDeltaXY(Direction direction);

	void UpdateImage();

	bool Tick();

};

/**

 * Iterate over disaster vehicles.

 * @param var The variable used to iterate over.

 */

#define FOR_ALL_DISASTERVEHICLES(var) FOR_ALL_VEHICLES_OF_TYPE(DisasterVehicle, var)

#endif /* DISASTER_VEHICLE_H */