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-rw-r--r--src/station_cmd.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index dc077e27f..d8555037f 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -794,6 +794,15 @@ static bool CanExpandRailroadStation(const Station* st, uint* fin, Axis axis)
curh = max(TileY(st->train_tile) + curh, TileY(tile) + h) - y;
tile = TileXY(x, y);
} else {
+ /* do not allow modifying non-uniform stations,
+ * the uniform-stations code wouldn't handle it well */
+ BEGIN_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
+ if (!st->TileBelongsToRailStation(t)) { // there may be adjoined station
+ _error_message = STR_306D_NONUNIFORM_STATIONS_DISALLOWED;
+ return false;
+ }
+ END_TILE_LOOP(t, st->trainst_w, st->trainst_h, st->train_tile)
+
/* check so the orientation is the same */
if (GetRailStationAxis(st->train_tile) != axis) {
_error_message = STR_306D_NONUNIFORM_STATIONS_DISALLOWED;