/**
* Get the height ('z') of a bridge.
* @param tile the bridge ramp tile to get the bridge height from
* @return the height of the bridge.
*/
int GetBridgeHeight(TileIndex t)
{
int h;
Slope tileh = TileMap.GetTileSlope(t, ref h);
Foundation f = GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(t)));
/* one height level extra for the ramp */
return(h + 1 + ApplyFoundationToSlope(f, ref tileh));
}
