private void ShowUnitButtons()
{
UnitAction unitAction = UnitAction.HEAL;
if (selectedUnit.Type == UnitType.SETTLER)
{
unitAction = UnitAction.BUILD_CITY;
}
Sprite sprite = Resources.Load("UI/Icons/" + unitAction.ToString(), typeof(Sprite)) as Sprite;
buyingButtons[0].GetComponent <Image>().sprite = sprite;
buyingButtons[0].gameObject.SetActive(true);
nameTextsButton[0].text = unitActionButtonName[(int)unitAction];
}