public static void SpawnCoins(Loot loot, Vector2 position)
 {
     for (int i = 0; i < loot.copper_amount; i++)
         SpawnCoin(COIN_TYPE.COPPER, position);
     for (int i = 0; i < loot.silver_amount; i++)
         SpawnCoin(COIN_TYPE.SILVER, position);
     for (int i = 0; i < loot.gold_amount; i++)
         SpawnCoin(COIN_TYPE.GOLD, position);
 }