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Fix rail platforms being left partially reserved after train crash

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This commit is contained in:
Jonathan G Rennison
2023-05-01 13:27:41 +01:00
parent dc56add6a3
commit 8218476e89
1 changed files with 21 additions and 0 deletions
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21
src/train_cmd.cpp
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@@ -6122,6 +6122,20 @@ static void SetSignalledBridgeTunnelGreenIfClear(TileIndex tile, TileIndex end)
}
}
static bool IsRailStationPlatformOccupied(TileIndex tile)
{
TileIndexDiff delta = (GetRailStationAxis(tile) == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
for (TileIndex t = tile; IsCompatibleTrainStationTile(t, tile); t -= delta) {
if (HasVehicleOnPos(t, VEH_TRAIN, nullptr, &TrainOnTileEnum)) return true;
}
for (TileIndex t = tile + delta; IsCompatibleTrainStationTile(t, tile); t += delta) {
if (HasVehicleOnPos(t, VEH_TRAIN, nullptr, &TrainOnTileEnum)) return true;
}
return false;
}
/**
* Deletes/Clears the last wagon of a crashed train. It takes the engine of the
* train, then goes to the last wagon and deletes that. Each call to this function
@@ -6176,6 +6190,13 @@ static void DeleteLastWagon(Train *v)
/* check if the wagon was on a road/rail-crossing */
if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
if (IsRailStationTile(tile)) {
bool occupied = IsRailStationPlatformOccupied(tile);
DiagDirection dir = AxisToDiagDir(GetRailStationAxis(tile));
SetRailStationPlatformReservation(tile, dir, occupied);
SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), occupied);
}
/* Update signals */
if (IsTunnelBridgeWithSignalSimulation(tile)) {
TileIndex end = GetOtherTunnelBridgeEnd(tile);