// add a coin pile to the list
public void AddCoinPile(System.Drawing.Point coinPosition, int coinLifeTime, int coinValue)
{
CoinPile coin = new CoinPile();
coin.X = coinPosition.X;
coin.Y = coinPosition.Y;
coin.LifeTime = coinLifeTime;
coin.DisappearTime = (int)Global.GameTime.TotalGameTime.TotalMilliseconds + coin.LifeTime;
coin.CoinValue = coinValue;
coinPiles.Add(coin);
}
// remove selected coin pile from the list
public void RemoveCoinPile(CoinPile coinPile)
{
coinPiles.Remove(coinPile);
}