public void AddFunds(float amount)
{
_cashMoney += amount;
// This ? operator is called null propagation, and means it will only trigger
// if OnUpdateBalance is not null. This is true only if there are no
// subscribers to that event.
OnUpdateBalance?.Invoke();
}
public void DeductFunds(float amount)
{
_cashMoney -= amount;
OnUpdateBalance?.Invoke();
}