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/* $Id$ */

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/** @file ai_station.hpp Everything to query and build stations */

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#ifndef AI_STATION_HPP

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#define AI_STATION_HPP

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#include "ai_object.hpp"

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/**

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 * Class that handles all station related functions.

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 */

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class AIStation : public AIObject {

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public:

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	/**

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	 * The name of the class, needed by several sub-processes.

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	 */

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	static const char *GetClassName() { return "AIStation"; }

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	/**

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	 * Checks whether the given station is valid and owned by you.

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	 * @param station_id the station to check.

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	 * @return true if and only if the station is valid.

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	 */

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	static bool IsValidStation(StationID station_id);

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	/**

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	 * Get the current location of a station.

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	 * @param station_id the station to get the location of.

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	 * @pre IsValidStation(station_id).

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	 * @return the tile the station is currently on.

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	 */

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	static TileIndex GetLocation(StationID station_id);

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	/**

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	 * See how much cargo there is waiting on a station.

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	 * @param station_id the station to get the cargo-waiting of.

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	 * @param cargo_id the cargo to get the cargo-waiting of.

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	 * @pre IsValidStation(station_id).

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	 * @pre IsValidCargo(cargo_id).

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	 * @return the amount of units waiting at the station.

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	 */

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	static int32 GetCargoWaiting(StationID station_id, CargoID cargo_id);

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};

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#endif /* AI_STATION_HPP */