summaryrefslogtreecommitdiff
path: root/src/signal.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/signal.cpp')
-rw-r--r--src/signal.cpp56
1 files changed, 44 insertions, 12 deletions
diff --git a/src/signal.cpp b/src/signal.cpp
index 2d16e9a73..dd6911a27 100644
--- a/src/signal.cpp
+++ b/src/signal.cpp
@@ -195,6 +195,14 @@ static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
return v;
}
+/** Check whether there is a train only on ramp. */
+static Vehicle *TrainInWormholeTileEnum(Vehicle *v, void *data)
+{
+ /* Only look for front engine or last wagon. */
+ if (v->type != VEH_TRAIN || (v->Previous() != NULL && v->Next() != NULL)) return NULL;
+ if (*(TileIndex *)data != TileVirtXY(v->x_pos, v->y_pos)) return NULL;
+ return v;
+}
/**
* Perform some operations before adding data into Todo set
@@ -373,17 +381,39 @@ static SigFlags ExploreSegment(Owner owner)
if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) continue;
DiagDirection dir = GetTunnelBridgeDirection(tile);
- if (enterdir == INVALID_DIAGDIR) { // incoming from the wormhole
- if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
- enterdir = dir;
- exitdir = ReverseDiagDir(dir);
- tile += TileOffsByDiagDir(exitdir); // just skip to next tile
- } else { // NOT incoming from the wormhole!
- if (ReverseDiagDir(enterdir) != dir) continue;
- if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
- tile = GetOtherTunnelBridgeEnd(tile); // just skip to exit tile
- enterdir = INVALID_DIAGDIR;
- exitdir = INVALID_DIAGDIR;
+ if (HasWormholeSignals(tile)) {
+ if (enterdir == INVALID_DIAGDIR) { // incoming from the wormhole
+ if (!(flags & SF_TRAIN) && IsTunnelBridgeExit(tile)) { // tunnel entrence is ignored
+ if (HasVehicleOnPos(GetOtherTunnelBridgeEnd(tile), &tile, &TrainInWormholeTileEnum)) flags |= SF_TRAIN;
+ if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, &tile, &TrainInWormholeTileEnum)) flags |= SF_TRAIN;
+ }
+ enterdir = dir;
+ exitdir = ReverseDiagDir(dir);
+ tile += TileOffsByDiagDir(exitdir); // just skip to next tile
+ } else { // NOT incoming from the wormhole!
+ if (ReverseDiagDir(enterdir) != dir) continue;
+ if (!(flags & SF_TRAIN)) {
+ if (HasVehicleOnPos(tile, &tile, &TrainInWormholeTileEnum)) flags |= SF_TRAIN;
+ if (!(flags & SF_TRAIN) && IsTunnelBridgeExit(tile)) {
+ if (HasVehicleOnPos(GetOtherTunnelBridgeEnd(tile), &tile, &TrainInWormholeTileEnum)) flags |= SF_TRAIN;
+ }
+ }
+ continue;
+ }
+ } else {
+ if (enterdir == INVALID_DIAGDIR) { // incoming from the wormhole
+ if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
+ enterdir = dir;
+ exitdir = ReverseDiagDir(dir);
+ tile += TileOffsByDiagDir(exitdir); // just skip to next tile
+ } else { // NOT incoming from the wormhole!
+ if (ReverseDiagDir(enterdir) != dir) continue;
+ if (!(flags & SF_TRAIN) && HasVehicleOnPos(tile, NULL, &TrainOnTileEnum)) flags |= SF_TRAIN;
+ tile = GetOtherTunnelBridgeEnd(tile); // just skip to exit tile
+ enterdir = INVALID_DIAGDIR;
+ exitdir = INVALID_DIAGDIR;
+ }
+
}
}
break;
@@ -491,7 +521,9 @@ static SigSegState UpdateSignalsInBuffer(Owner owner)
assert(GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL);
assert(dir == INVALID_DIAGDIR || dir == ReverseDiagDir(GetTunnelBridgeDirection(tile)));
_tbdset.Add(tile, INVALID_DIAGDIR); // we can safely start from wormhole centre
- _tbdset.Add(GetOtherTunnelBridgeEnd(tile), INVALID_DIAGDIR);
+ if (!HasWormholeSignals(tile)) { // Don't worry with other side of tunnel.
+ _tbdset.Add(GetOtherTunnelBridgeEnd(tile), INVALID_DIAGDIR);
+ }
break;
case MP_RAILWAY: