void OnBuildButtonClicked(object sender, MouseButtonEventArgs e)
{
if (provinces.Count == 0)
{
// TODO: Handle this properly
return;
}
if (game.GetFaction(game.PlayerFactionId).Wealth >= game.GetWorld().HoldingsPrice)
{
game.BuildHolding(provinces[currentProvinceIndex].Id, holdingTypes[currentHoldingTypeIndex]);
}
}