public void PurchaseUnit(IUnit unit)
{
if (unit == null)
{
throw new System.ArgumentNullException(nameof(unit));
}
if (Gold.Value < unit.GoldCost.Value)
{
throw new System.Exception("No gold to buy unit.");
}
Gold = new PositiveInt(Gold.Value - unit.GoldCost.Value);
GoldChanged?.Invoke(-unit.GoldCost.Value);
}
public void ChangeGold(int amount)
{
_gold += amount;
GoldChanged?.Invoke(_gold);
}
public void ResetGold()
{
_gold = 0;
GoldChanged?.Invoke(_gold);
}
private void OnGoldChanged(float value) => GoldChanged?.Invoke(this, new FloatEventArgs(value));
protected virtual void OnGoldChanged()
{
GoldChanged?.Invoke(this, EventArgs.Empty);
}
private void Treasury_GoldChanged(int change) => GoldChanged?.Invoke(change);
public void AddGold(PositiveInt gold)
{
Gold = new PositiveInt(Gold.Value + gold.Value);
GoldChanged?.Invoke(gold.Value);
}