public VendingMachineSafety(bool safetyOn, CoinSlot coinSlot, DeliveryChute deliveryChute,
IndicatorLight exactChangeLight, IndicatorLight outOfOrderLight, PopCanRack[] popCanRacks, CoinRack[] coinRacks)
{
this.SafetyOn = safetyOn;
this.CoinSlot = coinSlot;
this.DeliveryChute = deliveryChute;
this.ExactChangeLight = exactChangeLight;
this.OutOfOrderLight = outOfOrderLight;
this.PopCanRacks = popCanRacks;
this.CoinRacks = coinRacks;
}
/**
* Creates a standard arrangement for the vending machine. All the
* components are created and interconnected. The machine is initially
* empty. The pop kind names and costs are initialized to "<default>"
* and 1 respectively.
*
* All pop kinds
*
* @param coinKinds
* The values (in cents) of each kind of coin. The order of the
* kinds is maintained. One coin rack is produced for each kind.
* Each kind must have a unique, positive value.
* @param selectionButtonCount
* The number of selection buttons on the machine. Must be
* positive.
* @param coinRackCapacity
* The maximum capacity of each coin rack in the machine. Must be
* positive.
* @param popCanRackCapacity
* The maximum capacity of each pop can rack in the machine. Must
* be positive.
* @param receptacleCapacity
* The maximum capacity of the coin receptacle, storage bin, and
* delivery chute. Must be positive.
*/
public VendingMachine(int[] coinKinds, int selectionButtonCount, int coinRackCapacity, int popCanRackCapacity, int receptacleCapacity)
{
if (coinKinds == null)
{
throw new Exception("Arguments may not be null");
}
if (selectionButtonCount < 1 || coinRackCapacity < 1 || popCanRackCapacity < 1)
{
throw new Exception("Counts and capacities must be positive");
}
if (coinKinds.Length < 1)
{
throw new Exception("At least one coin kind must be accepted");
}
this.coinKinds = coinKinds;
var coinKindsSet = new HashSet <int>(coinKinds);
if (coinKindsSet.Count != this.coinKinds.Length)
{
throw new Exception("Coin kinds must have unique values");
}
if (coinKindsSet.Where(ck => ck < 1).Count() > 0)
{
throw new Exception("Coin kind must have a positive value");
}
this.Display = new Display();
this.CoinSlot = new CoinSlot(this.coinKinds);
this.CoinReceptacle = new CoinReceptacle(receptacleCapacity);
this.StorageBin = new CoinReceptacle(receptacleCapacity);
this.DeliveryChute = new DeliveryChute(receptacleCapacity);
this.CoinRacks = new CoinRack[this.coinKinds.Length];
this.coinRackChannels = new Dictionary <int, CoinChannel>();
for (int i = 0; i < this.coinKinds.Length; i++)
{
this.CoinRacks[i] = new CoinRack(coinRackCapacity);
this.CoinRacks[i].Connect(new CoinChannel(this.DeliveryChute));
this.coinRackChannels[this.coinKinds[i]] = new CoinChannel(CoinRacks[i]);
}
this.PopCanRacks = new PopCanRack[selectionButtonCount];
for (int i = 0; i < selectionButtonCount; i++)
{
this.PopCanRacks[i] = new PopCanRack(popCanRackCapacity);
this.PopCanRacks[i].Connect(new PopCanChannel(DeliveryChute));
}
this.PopCanNames = new string[selectionButtonCount];
for (int i = 0; i < selectionButtonCount; i++)
{
this.PopCanNames[i] = "<default>";
}
this.PopCanCosts = new int[selectionButtonCount];
for (int i = 0; i < selectionButtonCount; i++)
{
this.PopCanCosts[i] = 1;
}
this.SelectionButtons = new SelectionButton[selectionButtonCount];
for (int i = 0; i < selectionButtonCount; i++)
{
this.SelectionButtons[i] = new SelectionButton();
}
this.CoinSlot.Connect(new CoinChannel(this.CoinReceptacle), new CoinChannel(this.DeliveryChute));
this.CoinReceptacle.Connect(this.coinRackChannels, new CoinChannel(this.DeliveryChute), new CoinChannel(this.StorageBin));
this.ExactChangeLight = new IndicatorLight();
this.OutOfOrderLight = new IndicatorLight();
this.SafetyOn = false;
}