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-rw-r--r--newgrf_engine.c15
-rw-r--r--newgrf_engine.h2
-rw-r--r--train_cmd.c10
3 files changed, 14 insertions, 13 deletions
diff --git a/newgrf_engine.c b/newgrf_engine.c
index 7f534deed..b28476dfc 100644
--- a/newgrf_engine.c
+++ b/newgrf_engine.c
@@ -476,18 +476,19 @@ bool UsesWagonOverride(const Vehicle* v)
}
/**
- * Evaluates a newgrf callback
- * @param callback_info info about which callback to evaluate
- * (bit 0-7) = CallBack id of the callback to use, see CallBackId enum
- * (bit 8-15) = Other info some callbacks need to have, callback specific, see CallBackId enum, not used yet
- * @param engine Engine type of the vehicle to evaluate the callback for
- * @param vehicle The vehicle to evaluate the callback for, NULL if it doesnt exist (yet)
+ * Evaluate a newgrf callback for vehicles
+ * @param callback The callback to evalute
+ * @param param1 First parameter of the callback
+ * @param param2 Second parameter of the callback
+ * @param engine Engine type of the vehicle to evaluate the callback for
+ * @param vehicle The vehicle to evaluate the callback for, or NULL if it doesnt exist yet
* @return The value the callback returned, or CALLBACK_FAILED if it failed
*/
-uint16 GetCallBackResult(uint16 callback_info, EngineID engine, const Vehicle *v)
+uint16 GetVehicleCallback(byte callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v)
{
const SpriteGroup *group;
CargoID cargo = GC_DEFAULT;
+ uint16 callback_info = callback | (param1 << 8); // XXX Temporary conversion between new and old format.
if (v != NULL)
cargo = _global_cargo_id[_opt.landscape][v->cargo_type];
diff --git a/newgrf_engine.h b/newgrf_engine.h
index acbdfc5aa..a822fec26 100644
--- a/newgrf_engine.h
+++ b/newgrf_engine.h
@@ -18,7 +18,7 @@ void SetWagonOverrideSprites(EngineID engine, struct SpriteGroup *group, byte *t
void SetCustomEngineSprites(EngineID engine, byte cargo, struct SpriteGroup *group);
// loaded is in percents, overriding_engine 0xffff is none
int GetCustomEngineSprite(EngineID engine, const Vehicle* v, Direction direction);
-uint16 GetCallBackResult(uint16 callback_info, EngineID engine, const Vehicle *v);
+uint16 GetVehicleCallback(byte callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v);
bool UsesWagonOverride(const Vehicle *v);
#define GetCustomVehicleSprite(v, direction) GetCustomEngineSprite(v->engine_type, v, direction)
#define GetCustomVehicleIcon(et, direction) GetCustomEngineSprite(et, NULL, direction)
diff --git a/train_cmd.c b/train_cmd.c
index 4e433eef0..6ae53a21d 100644
--- a/train_cmd.c
+++ b/train_cmd.c
@@ -164,7 +164,7 @@ void TrainConsistChanged(Vehicle* v)
CLRBIT(u->u.rail.flags, VRF_POWEREDWAGON);
if ((rvi_v->pow_wag_power != 0) && (rvi_u->flags & RVI_WAGON) && UsesWagonOverride(u)) {
if (HASBIT(rvi_u->callbackmask, CBM_WAGON_POWER)) {
- uint16 callback = GetCallBackResult(CBID_TRAIN_WAGON_POWER, u->engine_type, u);
+ uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
if (callback != CALLBACK_FAILED)
u->u.rail.cached_vis_effect = callback;
@@ -191,7 +191,7 @@ void TrainConsistChanged(Vehicle* v)
// check the vehicle length (callback)
veh_len = CALLBACK_FAILED;
if (HASBIT(rvi_u->callbackmask, CBM_VEHICLE_LENGTH))
- veh_len = GetCallBackResult(CBID_TRAIN_VEHICLE_LENGTH, u->engine_type, u);
+ veh_len = GetVehicleCallback(CBID_TRAIN_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
if (veh_len == CALLBACK_FAILED)
veh_len = rvi_u->shorten_factor;
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
@@ -485,7 +485,7 @@ static uint CountArticulatedParts(const RailVehicleInfo *rvi, EngineID engine_ty
if (!HASBIT(rvi->callbackmask, CBM_ARTIC_ENGINE)) return 0;
for (i = 1; i < 10; i++) {
- callback = GetCallBackResult(CBID_TRAIN_ARTIC_ENGINE + (i << 8), engine_type, NULL);
+ callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, engine_type, NULL);
if (callback == CALLBACK_FAILED || callback == 0xFF) break;
}
@@ -505,7 +505,7 @@ static void AddArticulatedParts(const RailVehicleInfo *rvi, Vehicle **vl)
if (!HASBIT(rvi->callbackmask, CBM_ARTIC_ENGINE)) return;
for (i = 1; i < 10; i++) {
- callback = GetCallBackResult(CBID_TRAIN_ARTIC_ENGINE + (i << 8), v->engine_type, NULL);
+ callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, v->engine_type, NULL);
if (callback == CALLBACK_FAILED || callback == 0xFF) return;
u->next = vl[i];
@@ -1737,7 +1737,7 @@ int32 CmdRefitRailVehicle(int x, int y, uint32 flags, uint32 p1, uint32 p2)
/* Check the 'refit capacity' callback */
CargoID temp_cid = v->cargo_type;
v->cargo_type = new_cid;
- amount = GetCallBackResult(CBID_VEHICLE_REFIT_CAPACITY, v->engine_type, v);
+ amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
v->cargo_type = temp_cid;
}