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/* $Id$ */

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/** @file newgrf_generic.h Functions related to generic callbacks. */

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#ifndef NEWGRF_GENERIC_H

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#define NEWGRF_GENERIC_H

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enum AIConstructionEvent {

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	AICE_TRAIN_CHECK_RAIL_ENGINE     = 0x00, ///< Check if we should build an engine

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	AICE_TRAIN_CHECK_ELRAIL_ENGINE   = 0x01,

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	AICE_TRAIN_CHECK_MONORAIL_ENGINE = 0x02,

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	AICE_TRAIN_CHECK_MAGLEV_ENGINE   = 0x03,

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	AICE_TRAIN_GET_RAIL_WAGON        = 0x08,

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	AICE_TRAIN_GET_ELRAIL_WAGON      = 0x09,

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	AICE_TRAIN_GET_MONORAIL_WAGON    = 0x0A,

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	AICE_TRAIN_GET_MAGLEV_WAGON      = 0x0B,

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	AICE_TRAIN_GET_RAILTYPE          = 0x0F,

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	AICE_ROAD_CHECK_ENGINE           = 0x00, ///< Check if we should build an engine

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	AICE_ROAD_GET_FIRST_ENGINE       = 0x01, ///< Unused, we check all

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	AICE_ROAD_GET_NUMBER_ENGINES     = 0x02, ///< Unused, we check all

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	AICE_SHIP_CHECK_ENGINE           = 0x00, ///< Check if we should build an engine

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	AICE_SHIP_GET_FIRST_ENGINE       = 0x01, ///< Unused, we check all

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	AICE_SHIP_GET_NUMBER_ENGINES     = 0x02, ///< Unused, we check all

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	AICE_AIRCRAFT_CHECK_ENGINE       = 0x00, ///< Check if we should build an engine

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	AICE_STATION_GET_STATION_ID      = 0x00, ///< Get a station ID to build

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};

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void ResetGenericCallbacks();

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void AddGenericCallback(uint8 feature, const struct GRFFile *file, const struct SpriteGroup *group);

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uint16 GetAiPurchaseCallbackResult(uint8 feature, CargoID cargo_type, uint8 default_selection, IndustryType src_industry, IndustryType dst_industry, uint8 distance, AIConstructionEvent event, uint8 count, uint8 station_size, const struct GRFFile **file);

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#endif /* NEWGRF_GENERIC_H */