@@ -256,6 +256,7 @@ CommandCost CmdBuildBridge(TileIndex end
uint z_end;
Slope tileh_start = GetTileSlope(tile_start, &z_start);
Slope tileh_end = GetTileSlope(tile_end, &z_end);
bool pbs_reservation = false;
CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
@@ -298,8 +299,19 @@ CommandCost CmdBuildBridge(TileIndex end
cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]); // The cost of clearing the current bridge.
owner = GetTileOwner(tile_start);
/* Do not remove road types when upgrading a bridge */
roadtypes |= GetRoadTypes(tile_start);
switch (transport_type) {
case TRANSPORT_RAIL:
/* Keep the reservation, the path stays valid. */
pbs_reservation = HasTunnelBridgeReservation(tile_start);
break;
case TRANSPORT_ROAD:
default: break;
}
} else {
/* Build a new bridge. */
@@ -404,6 +416,8 @@ CommandCost CmdBuildBridge(TileIndex end
MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
SetTunnelBridgeReservation(tile_start, pbs_reservation);
SetTunnelBridgeReservation(tile_end, pbs_reservation);
Status change: