public void OnBuffAllBuffTowers()
{
GameObject[] towers = GameObject.FindGameObjectsWithTag("Tower");
for (int i = 0; i < towers.Length; ++i)
{
TowerWeapon weapon = towers[i].GetComponent <TowerWeapon>();
if (weapon.WeaponType == WeaponType.Buff)
{
weapon.OnBuffAroundTower();
}
}
}