/* $Id$ */ #ifndef NEWGRF_CALLBACKS_H #define NEWGRF_CALLBACKS_H /** @file newgrf_callbacks.h */ /** * List of implemented NewGRF callbacks. * Names are formatted as CBID__ */ enum CallbackID { // Powered wagons, if the result is lower as 0x40 then the wagon is powered // TODO: interpret the rest of the result, aka "visual effects" CBID_TRAIN_WAGON_POWER = 0x10, // Vehicle length, returns the amount of 1/8's the vehicle is shorter // only for train vehicles CBID_TRAIN_VEHICLE_LENGTH = 0x11, /* Called (if appropriate bit in callback mask is set) to determine if a * newstation should be made available to build */ CBID_STATION_AVAILABILITY = 0x13, /* Called (if appropriate bit in callback mask is set) when drawing a tile * to choose a sprite layout to draw, instead of the standard 0-7 range */ CBID_STATION_SPRITE_LAYOUT = 0x14, // Refit capacity, the passed vehicle needs to have its ->cargo_type set to // the cargo we are refitting to, returns the new cargo capacity CBID_VEHICLE_REFIT_CAPACITY = 0x15, CBID_TRAIN_ARTIC_ENGINE = 0x16, CBID_VEHICLE_CARGO_SUFFIX = 0x19, CBID_TRAIN_ALLOW_WAGON_ATTACH = 0x1D, /* This callback is called from vehicle purchase lists. It returns a value to be * used as a custom string ID in the 0xD000 range. */ CBID_VEHICLE_ADDITIONAL_TEXT = 0x23, /* Called when building a station to customize the tile layout */ CBID_STATION_TILE_LAYOUT = 0x24, /* Called when the player (or AI) tries to start or stop a vehicle. Mainly * used for preventing a vehicle from leaving the depot. */ CBID_VEHICLE_START_STOP_CHECK = 0x31, /* Called to play a special sound effect */ CBID_VEHICLE_SOUND_EFFECT = 0x33, }; /** * Callback masks for vehicles, indicates which callbacks are used by a vehicle. * Some callbacks are always used and don't have a mask. */ enum VehicleCallbackMask { CBM_WAGON_POWER = 0, ///< Powered wagons (trains only) CBM_VEHICLE_LENGTH = 1, ///< Vehicle length (trains only) CBM_LOAD_AMOUNT = 2, ///< Load amount CBM_REFIT_CAPACITY = 3, ///< Cargo capacity after refit CBM_ARTIC_ENGINE = 4, ///< Add articulated engines (trains only) CBM_CARGO_SUFFIX = 5, ///< Show suffix after cargo name CBM_COLOUR_REMAP = 6, ///< Change colour mapping of vehicle CBM_SOUND_EFFECT = 7, ///< Vehicle uses custom sound effects }; /** * Callback masks for stations. */ enum StationCallbackMask { CBM_STATION_AVAIL = 0, ///< Availability of station in construction window CBM_CUSTOM_LAYOUT = 1, ///< Use callback to select a tile layout to use }; /** * Result of a failed callback. */ enum { CALLBACK_FAILED = 0xFFFF }; #endif /* NEWGRF_CALLBACKS_H */