public Error SetRoadTheme(ICity city, string id)
{
if (!HasTheme(city.Owner, id))
{
return(Error.ThemeNotPurchased);
}
var previousTheme = city.RoadTheme;
city.BeginUpdate();
city.RoadTheme = id;
city.EndUpdate();
var lockedRegions = regionManager.LockRegions(tileLocator.ForeachTile(city.PrimaryPosition.X, city.PrimaryPosition.Y, city.Radius));
roadManager.ChangeRoadTheme(city, previousTheme, id);
regionManager.UnlockRegions(lockedRegions);
return(Error.Ok);
}
