--- a/src/pbs.cpp Sun Aug 03 11:28:35 2008 +0000
+++ b/src/pbs.cpp Sun Aug 03 14:16:57 2008 +0000
@@ -204,13 +204,24 @@
return PBSTileInfo(tile, trackdir, false);
}
+/** Callback for VehicleFromPos to find a train on a specific track. */
+static Vehicle *FindTrainOnTrackEnum(Vehicle *v, void *data)
+{
+ PBSTileInfo info = *(PBSTileInfo *)data;
+
+ if (v->type == VEH_TRAIN && !(v->vehstatus & VS_CRASHED) && HasBit((TrackBits)v->u.rail.track, TrackdirToTrack(info.trackdir))) return v;
+
+ return NULL;
+}
+
/**
* Follow a train reservation to the last tile.
*
* @param v the vehicle
+ * @param train_on_res Is set to a train we might encounter
* @returns The last tile of the reservation or the current train tile if no reservation present.
*/
-PBSTileInfo FollowTrainReservation(const Vehicle *v)
+PBSTileInfo FollowTrainReservation(const Vehicle *v, Vehicle **train_on_res)
{
assert(v->type == VEH_TRAIN);
@@ -221,19 +232,10 @@
PBSTileInfo res = FollowReservation(v->owner, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes, tile, trackdir);
res.okay = IsSafeWaitingPosition(v, res.tile, res.trackdir, true, _settings_game.pf.forbid_90_deg);
+ if (train_on_res != NULL) *train_on_res = VehicleFromPos(res.tile, &res, FindTrainOnTrackEnum);
return res;
}
-/** Callback for VehicleFromPos to find a train on a specific track. */
-static Vehicle *FindTrainOnTrackEnum(Vehicle *v, void *data)
-{
- PBSTileInfo info = *(PBSTileInfo *)data;
-
- if (v->type == VEH_TRAIN && !(v->vehstatus & VS_CRASHED) && HasBit((TrackBits)v->u.rail.track, TrackdirToTrack(info.trackdir))) return v;
-
- return NULL;
-}
-
/**
* Find the train which has reserved a specific path.
*