@@ -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(
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);