diff options
Diffstat (limited to 'src/tunnelbridge_cmd.cpp')
| -rw-r--r-- | src/tunnelbridge_cmd.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp index 87abd7470..2ddefb554 100644 --- a/src/tunnelbridge_cmd.cpp +++ b/src/tunnelbridge_cmd.cpp @@ -32,6 +32,7 @@ #include "yapf/yapf.h" #include "date.h" #include "newgrf_sound.h" +#include "autoslope.h" #include "table/bridge_land.h" @@ -1416,6 +1417,30 @@ static uint32 VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y static CommandCost TerraformTile_TunnelBridge(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new) { + if (_patches.build_on_slopes && AutoslopeEnabled() && IsBridge(tile)) { + DiagDirection direction = GetBridgeRampDirection(tile); + Axis axis = DiagDirToAxis(direction); + CommandCost res; + + /* Check if new slope is valid for bridges in general (so we can savely call GetBridgeFoundation()) */ + if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) { + res = CheckBridgeSlopeSouth(axis, tileh_new); + } else { + res = CheckBridgeSlopeNorth(axis, tileh_new); + } + + if (!CmdFailed(res)) { + uint z_old; + Slope tileh_old = GetTileSlope(tile, &z_old); + + z_old += ApplyFoundationToSlope(GetBridgeFoundation(tileh_old, axis), &tileh_old); + z_new += ApplyFoundationToSlope(GetBridgeFoundation(tileh_new, axis), &tileh_new); + + /* Surface slope remains unchanged? */ + if ((z_old == z_new) && (tileh_old == tileh_new)) return _price.terraform; + } + } + return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); } |