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(svn r3587) - NewGRF: Rename Callback IDs to include their "class"
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@ -6,33 +6,44 @@
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/** @file newgrf_callbacks.h
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*/
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// This enum lists the implemented callbacks
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// Use as argument for the GetCallBackResult function (see comments there)
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/**
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* List of implemented NewGRF callbacks.
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* Names are formatted as CBID_<CLASS>_<CALLBACK>
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*/
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enum CallbackID {
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// Powered wagons, if the result is lower as 0x40 then the wagon is powered
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// TODO: interpret the rest of the result, aka "visual effects"
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CBID_WAGON_POWER = 0x10,
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CBID_TRAIN_WAGON_POWER = 0x10,
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// Vehicle length, returns the amount of 1/8's the vehicle is shorter
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// only for train vehicles
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CBID_VEH_LENGTH = 0x11,
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CBID_TRAIN_VEHICLE_LENGTH = 0x11,
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// Refit capacity, the passed vehicle needs to have its ->cargo_type set to
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// the cargo we are refitting to, returns the new cargo capacity
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CBID_REFIT_CAP = 0x15,
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CBID_VEHICLE_REFIT_CAPACITY = 0x15,
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CBID_ARTIC_ENGINE = 0x16,
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CBID_TRAIN_ARTIC_ENGINE = 0x16,
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};
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// bit positions for rvi->callbackmask, indicates which callbacks are used by an engine
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// (some callbacks are always used, and dont appear here)
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enum CallbackMask {
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CBM_WAGON_POWER = 0,
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CBM_VEH_LENGTH = 1,
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CBM_REFIT_CAP = 3,
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CBM_ARTIC_ENGINE = 4,
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/**
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* Callback masks for vehicles, indicates which callbacks are used by a vehicle.
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* Some callbacks are always used and don't have a mask.
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*/
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enum VehicleCallbackMask {
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CBM_WAGON_POWER = 0, ///< Powered wagons (trains only)
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CBM_VEHICLE_LENGTH = 1, ///< Vehicle length (trains only)
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CBM_LOAD_AMOUNT = 2, ///< Load amount
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CBM_REFIT_CAPACITY = 3, ///< Cargo capacity after refit
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CBM_ARTIC_ENGINE = 4, ///< Add articulated engines (trains only)
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CBM_CARGO_SUFFIX = 5, ///< Show suffix after cargo name
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CBM_COLOUR_REMAP = 6, ///< Change colour mapping of vehicle
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CBM_SOUND_EFFECT = 7, ///< Vehicle uses custom sound effects
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};
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/**
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* Result of a failed callback.
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*/
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enum {
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CALLBACK_FAILED = 0xFFFF
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};
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14
train_cmd.c
14
train_cmd.c
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@ -122,7 +122,7 @@ void TrainConsistChanged(Vehicle* v)
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CLRBIT(u->u.rail.flags, VRF_POWEREDWAGON);
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if ((rvi_v->pow_wag_power != 0) && (rvi_u->flags & RVI_WAGON) && UsesWagonOverride(u)) {
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if (HASBIT(rvi_u->callbackmask, CBM_WAGON_POWER)) {
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uint16 callback = GetCallBackResult(CBID_WAGON_POWER, u->engine_type, u);
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uint16 callback = GetCallBackResult(CBID_TRAIN_WAGON_POWER, u->engine_type, u);
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if (callback != CALLBACK_FAILED)
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u->u.rail.cached_vis_effect = callback;
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@ -143,8 +143,8 @@ void TrainConsistChanged(Vehicle* v)
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// check the vehicle length (callback)
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veh_len = CALLBACK_FAILED;
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if (HASBIT(rvi_u->callbackmask, CBM_VEH_LENGTH))
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veh_len = GetCallBackResult(CBID_VEH_LENGTH, u->engine_type, u);
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if (HASBIT(rvi_u->callbackmask, CBM_VEHICLE_LENGTH))
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veh_len = GetCallBackResult(CBID_TRAIN_VEHICLE_LENGTH, u->engine_type, u);
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if (veh_len == CALLBACK_FAILED)
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veh_len = rvi_u->shorten_factor;
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veh_len = clamp(veh_len, 0, u->next == NULL ? 7 : 5); // the clamp on vehicles not the last in chain is stricter, as too short wagons can break the 'follow next vehicle' code
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@ -435,7 +435,7 @@ static uint CountArticulatedParts(const RailVehicleInfo *rvi, EngineID engine_ty
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if (!HASBIT(rvi->callbackmask, CBM_ARTIC_ENGINE)) return 0;
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for (i = 1; i < 10; i++) {
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callback = GetCallBackResult(CBID_ARTIC_ENGINE + (i << 8), engine_type, NULL);
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callback = GetCallBackResult(CBID_TRAIN_ARTIC_ENGINE + (i << 8), engine_type, NULL);
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if (callback == CALLBACK_FAILED || callback == 0xFF) break;
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}
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@ -456,7 +456,7 @@ static void AddArticulatedParts(const RailVehicleInfo *rvi, Vehicle **vl)
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return;
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for (i = 1; i < 10; i++) {
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callback = GetCallBackResult(CBID_ARTIC_ENGINE + (i << 8), v->engine_type, NULL);
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callback = GetCallBackResult(CBID_TRAIN_ARTIC_ENGINE + (i << 8), v->engine_type, NULL);
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if (callback == CALLBACK_FAILED || callback == 0xFF)
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return;
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@ -1692,11 +1692,11 @@ int32 CmdRefitRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
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const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
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uint16 amount = CALLBACK_FAILED;
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if (HASBIT(rvi->callbackmask, CBM_REFIT_CAP)) {
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if (HASBIT(rvi->callbackmask, CBM_REFIT_CAPACITY)) {
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/* Check the 'refit capacity' callback */
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CargoID temp_cid = v->cargo_type;
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v->cargo_type = new_cid;
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amount = GetCallBackResult(CBID_REFIT_CAP, v->engine_type, v);
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amount = GetCallBackResult(CBID_VEHICLE_REFIT_CAPACITY, v->engine_type, v);
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v->cargo_type = temp_cid;
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}
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