public void MakePurchase(GameObject buyButton)
{
BuyButton buyingFrom = buyButton.GetComponent <BuyButton>();
if (coins >= buyingFrom.itemCost)
{
SpendCoins(buyingFrom.itemCost);
PlayerPrefs.SetInt(buyingFrom.unlockThisBlock.name, 1);
buyingFrom.Unlock();
}
EstablishAvailableCubes();
}