public void giveMoney(UUID player, double amount, FinancialCallback callback) {
new Thread(
() -> {
PlayerData data = getData(player);
data.creditMoney(amount);
if (callback != null) callback.done(data.getMoney(), amount);
})
.start();
}
public double getAmount(UUID player) {
PlayerData data = getData(player);
return data.getMoney();
}