void OnTriggerEnter(Collider col)
{
if(onlyOne)
if (col.gameObject.tag == "PlayerBody")
{
onlyOne = false;
player = col.gameObject;
playerUnit = col.gameObject.GetComponent<PlayerUnit>();
playerUnit.powerUp(playerUnit.powerUpPotion);
applyItem();
StartCoroutine("effect");
Destroy(this.gameObject);
}
}