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/* $Id$ */

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/** @file ai_stationlist_valuator.hpp all the valuators for stationlist */

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#ifndef AI_STATIONLIST_VALUATOR_HPP

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#define AI_STATIONLIST_VALUATOR_HPP

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#include "ai_abstractlist.hpp"

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/**

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 * Get the location for entries in an AIStationList instance.

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 * @note resulting items are of the type TileIndex

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 * @note the input items are of the type StationID

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 */

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class AIStationListLocation : public AIAbstractList::Valuator {

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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 "AIStationListGetLocation"; }

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private:

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	int32 Valuate(int32 station) const;

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};

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/**

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 * Get the cargo waiting for entries in an AIStationList instance.

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 * @note resulting items are of the type units

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 * @note the input items are of the type StationID

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 */

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class AIStationListCargoWaiting : public AIAbstractList::Valuator {

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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 "AIStationListCargoWaiting"; }

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	/**

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	 * Custom constructor, we want a cargo-type as parameter.

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	 */

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	AIStationListCargoWaiting(CargoID cargo_type) { this->cargo_type = cargo_type; }

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private:

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	CargoID cargo_type;

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	int32 Valuate(int32 station) const;

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};

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/**

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 * Get the cargo rating for entries in an AIStationList instance.

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 * @note resulting items are of the type percent

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 * @note the input items are of the type StationID

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 */

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class AIStationListCargoRating : public AIAbstractList::Valuator {

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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 "AIStationListCargoRating"; }

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	/**

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	 * Custom constructor, we want a cargo-type as parameter.

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	 */

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	AIStationListCargoRating(CargoID cargo_type) { this->cargo_type = cargo_type; }

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private:

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	CargoID cargo_type;

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	int32 Valuate(int32 station) const;

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};

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/**

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 * Get the manhattan distance to a tile for entries in an AIStationList instance.

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 * @note resulting items are of the type distance

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 * @note the input items are of the type StationID

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 */

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class AIStationListDistanceManhattanToTile : public AIAbstractList::Valuator {

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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 "AIStationListDistanceManhattanToTile"; }

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	/**

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	 * Custom constructor, we want a tile as parameter.

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	 */

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	AIStationListDistanceManhattanToTile(TileIndex tile) { this->tile = tile; }

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private:

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	TileIndex tile;

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	int32 Valuate(int32 station) const;

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};

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/**

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 * Get the sqsuare distance to a tile for entries in an AIStationList instance.

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 * @note resulting items are of the type distance

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 * @note the input items are of the type StationID

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 */

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class AIStationListDistanceSquareToTile : public AIAbstractList::Valuator {

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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 "AIStationListDistanceSquareToTile"; }

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	/**

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	 * Custom constructor, we want a tile as parameter.

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	 */

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	AIStationListDistanceSquareToTile(TileIndex tile) { this->tile = tile; }

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private:

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	TileIndex tile;

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	int32 Valuate(int32 station) const;

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};

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#endif /* AI_STATIONLIST_VALUATOR_HPP */