diff options
Diffstat (limited to 'src/signal.cpp')
| -rw-r--r-- | src/signal.cpp | 56 |
1 files changed, 44 insertions, 12 deletions
diff --git a/src/signal.cpp b/src/signal.cpp index 329b1b05d..e058edf5e 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 @@ -372,17 +380,39 @@ 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, nullptr, &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, nullptr, &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, nullptr, &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, nullptr, &TrainOnTileEnum)) flags |= SF_TRAIN; + tile = GetOtherTunnelBridgeEnd(tile); // just skip to exit tile + enterdir = INVALID_DIAGDIR; + exitdir = INVALID_DIAGDIR; + } + } } break; @@ -490,7 +520,9 @@ 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: |