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