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/* $Id$ */

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/** @file ai_townlist_valuator.hpp all the valuators for townlist */

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#ifndef AI_TOWNLIST_VALUATOR_HPP

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#define AI_TOWNLIST_VALUATOR_HPP

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#include "ai_abstractlist.hpp"

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/**

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 * Give a random value for the entries in an AITownList instance.

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 * @note resulting items are of the type int32

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 * @note the input items are of the type TownID

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 */

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class AITownListRandomize : 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 "AITownListRandomize"; }

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private:

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	int32 Valuate(int32 town) const;

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};

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/**

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 * Get the population for entries in an AITownList instance.

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 * @note resulting items are of the type int32

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 * @note the input items are of the type TownID

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 */

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class AITownListPopulation : 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 "AITownListGetPopulation"; }

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private:

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	int32 Valuate(int32 town) const;

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};

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/**

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 * Get the location for entries in an AITownList 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 TownID

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 */

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class AITownListLocation : 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 "AITownListGetLocation"; }

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private:

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	int32 Valuate(int32 town) const;

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};

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/**

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 * Get the manhattan distance to a tile for entries in an AITownList 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 TownID

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 */

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class AITownListDistanceManhattanToTile : 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 "AITownListDistanceManhattanToTile"; }

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	/**

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	 * Custom constructor, we want a tile as parameter.

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	 */

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	AITownListDistanceManhattanToTile(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 AITownList 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 TownID

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 */

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class AITownListDistanceSquareToTile : 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 "AITownListDistanceSquareToTile"; }

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	/**

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	 * Custom constructor, we want a tile as parameter.

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	 */

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	AITownListDistanceSquareToTile(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_TOWNLIST_VALUATOR_HPP */