/// <summary>
/// returns all of the coins in the machine and updates the lights
/// </summary>
public void CoinReturn()
{
if (_totalEntered > 0)
{
for (int i = coins.Length - 1; i >= 0; i--)
{
_totalEntered -= coins[i].ReduceCoins(_totalEntered);
}
}
amountD.DisplayAmount(_totalEntered);
LightUpCans();
timerL.TurnOn3Sec();
}
public static void Purchase(Can product)
{
if (product.purchasableLight.IsOn() && !product.soldOutLight.IsOn())
{
if (GetChange(Coin.TotalCoinsInserted - product.Price))
{
product.canDispense.Actuate();
product.Stock = product.Stock - 1;
}
else
{
noChangeLight.TurnOn3Sec();
}
}
}
public bool CheckIfCanMakeChange(int changeAmount)
{
foreach (Coin c in coins)
{
changeAmount -= c.makeChange(changeAmount);
}
if (changeAmount == 0)
{
return(true);
}
else
{
noChangeLight.TurnOn3Sec();
return(false);
}
}
public bool checkIfReturnChange(int price)
{
int tmp = totalInsertMoney - price;
for (int i = coinList.Count - 1; i >= 0; --i)
{
tmp -= coinList[i].calculateChange(tmp);
}
if (tmp == 0)
{
totalInsertMoney = 0;
return(true);
}
noChangeLight.TurnOn3Sec();
return(false);
}
/// <summary>
/// Carries out process for when client has purchased a can, determining whether or not the transaction can take place and if so, completing the transaction.
/// </summary>
/// <param name="index">Keeps track of which type of drink has been purchased.</param>
public void PurchasedCan(int index)
{
int change; //used to keep track of how much money the machine needs to return
if (!drinks[index].PurchaseOn())
{
return;
}
change = drinks[index].CalculateChangeValue(moneyInserted);
if (!CanMakeChange(change))
{
noChange.TurnOn3Sec();
return;
}
drinks[index].DispenseCan();
MakeChange();
ClearValues();
}
/// <summary>
/// Method to hand a purchase buttong being pushed on the machine
/// </summary>
/// <param name="index"></param>
public void PurchaseButtonPushed(int index)
{
BeverageIndex = index; //sets the index of the beverage selected by the user
if (!BeverageArray[BeverageIndex].IsPurchaseable())
{
return; //Checks if beverage is purchaseable or not
}
if (!TryGetChange(BeverageArray[BeverageIndex].Price))
{
NoChangeLight.TurnOn3Sec(); return;
} //checks to see if the appropriate amount of change can be made if a certain beverage is to be purchased
BeverageArray[BeverageIndex].Purchase(); //purchases the beverage
for (int i = 0; i < CoinArray.Length; i++)
{
CoinArray[i].DispenceCoins(); //dispenses the appropriate mixture of coins needed for change
}
UpdateLights(); //updates all the lights on the machine
AmtDisplay.DisplayAmount(credit); //updates the display amount of credits in the machine
}
public bool TryToReturnChange(int price)
{
int change = amount - price;
for (int i = coins.Count - 1; i >= 0; i--)
{
change = coins[i].CalcNumCoinsToReturn(change);
}
if (change == 0)
{
foreach (Coin coin in coins)
{
coin.ReturnCoins();
}
ResetDisplays();
return(true);
}
else
{
noChangeLight.TurnOn3Sec();
return(false);
}
}
public static void purchaseItem(Can product)
{
bool changeAvaliable = false;
if (product.Stock > 0)
{
if (totalAmountInserted >= product.Price)
{
changeAvaliable = Coin.returnChange(totalAmountInserted - product.Price);
if (changeAvaliable)
{
product.Stock--;
if (product.Stock <= 0)
{
product.flashSoldOut();
}
product.dispenseCan();
totalAmountInserted = 0;
for (int i = 0; i < 4; i++)
{
allProduct[i].canPurchaseItem();
}
}
else
{
noChangeLight.TurnOn3Sec();
}
}
}
}