public void OnHoverAbilityButton(GameObject butObj)
{
if (GameControl.GetSelectedTower() != null)
{
return;
}
int ID = GetButtonID(butObj);
Ability ability = AbilityManager.GetAbilityList()[ID];
txtTooltipName.text = ability.name;
txtTooltipCost.text = "" + ability.GetCostInt();
txtTooltipDesp.text = ability.GetDesp();
tooltipObj.SetActive(true);
}