tron@2186: /* $Id$ */
tron@2186: 
peter1138@2982: #ifndef NEWGRF_CALLBACKS_H
peter1138@2982: #define NEWGRF_CALLBACKS_H
truelight@0: 
peter1138@2982: /** @file newgrf_callbacks.h
peter1138@2962:  */
truelight@0: 
hackykid@1895: // This enum lists the implemented callbacks
hackykid@1895: // Use as argument for the GetCallBackResult function (see comments there)
hackykid@1883: enum CallbackID {
hackykid@1908: 	// Powered wagons, if the result is lower as 0x40 then the wagon is powered
hackykid@1908: 	// TODO: interpret the rest of the result, aka "visual effects"
hackykid@1908: 	CBID_WAGON_POWER = 0x10,
hackykid@1908: 
hackykid@1922: 	// Vehicle length, returns the amount of 1/8's the vehicle is shorter
hackykid@1922: 	// only for train vehicles
hackykid@1922: 	CBID_VEH_LENGTH = 0x11,
hackykid@1922: 
hackykid@1883: 	// Refit capacity, the passed vehicle needs to have its ->cargo_type set to
hackykid@1883: 	// the cargo we are refitting to, returns the new cargo capacity
hackykid@1895: 	CBID_REFIT_CAP = 0x15,
peter1138@2602: 
peter1138@2602: 	CBID_ARTIC_ENGINE = 0x16,
hackykid@1895: };
hackykid@1895: 
hackykid@1895: // bit positions for rvi->callbackmask, indicates which callbacks are used by an engine
hackykid@1895: // (some callbacks are always used, and dont appear here)
hackykid@1895: enum CallbackMask {
hackykid@1909: 	CBM_WAGON_POWER = 0,
hackykid@1922: 	CBM_VEH_LENGTH = 1,
hackykid@1895: 	CBM_REFIT_CAP = 3,
peter1138@2602: 	CBM_ARTIC_ENGINE = 4,
hackykid@1883: };
hackykid@1883: 
hackykid@1883: enum {
hackykid@1883: 	CALLBACK_FAILED = 0xFFFF
hackykid@1883: };
hackykid@1883: 
peter1138@2982: #endif /* NEWGRF_CALLBACKS_H */