OpenTTD-patches/newgrf_callbacks.h

41 lines
1.0 KiB
C

/* $Id$ */
#ifndef NEWGRF_CALLBACKS_H
#define NEWGRF_CALLBACKS_H
/** @file newgrf_callbacks.h
*/
// This enum lists the implemented callbacks
// Use as argument for the GetCallBackResult function (see comments there)
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_WAGON_POWER = 0x10,
// Vehicle length, returns the amount of 1/8's the vehicle is shorter
// only for train vehicles
CBID_VEH_LENGTH = 0x11,
// 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_REFIT_CAP = 0x15,
CBID_ARTIC_ENGINE = 0x16,
};
// bit positions for rvi->callbackmask, indicates which callbacks are used by an engine
// (some callbacks are always used, and dont appear here)
enum CallbackMask {
CBM_WAGON_POWER = 0,
CBM_VEH_LENGTH = 1,
CBM_REFIT_CAP = 3,
CBM_ARTIC_ENGINE = 4,
};
enum {
CALLBACK_FAILED = 0xFFFF
};
#endif /* NEWGRF_CALLBACKS_H */