public static Wallet operator +(Wallet wallet1, Wallet wallet2)
{
Wallet resultwallet = new Wallet(wallet1.coins);
foreach (var coin in wallet2.coins)
{
var c = resultwallet.CoinByValue(coin.value);
if (c != null)
{
c.count += coin.count;
}
else
{
resultwallet.coins.Add(coin);
}
}
return resultwallet;
}
public Wallet Substruct(Wallet p)
{
Wallet result = new Wallet();
foreach (var coin in this.coins)
{
CoinSet c = p.CoinByValue(coin.value);
if ( c != null ) coin.count -= c.count;
}
return result;
}