static void Main(string[] args)
{
// Initially ATM Machine in DebitCardNotInsertedState
ATMMachine atmMachine = new ATMMachine();
Console.WriteLine("ATM Machine Current state : "
+ atmMachine.atmMachineState.GetType().Name);
Console.WriteLine();
atmMachine.EnterPin();
atmMachine.WithdrawMoney();
atmMachine.EjectDebitCard();
atmMachine.InsertDebitCard();
Console.WriteLine();
// Debit Card has been inserted so internal state of ATM Machine
// has been changed to DebitCardInsertedState
Console.WriteLine("ATM Machine Current state : "
+ atmMachine.atmMachineState.GetType().Name);
Console.WriteLine();
atmMachine.EnterPin();
atmMachine.WithdrawMoney();
atmMachine.InsertDebitCard();
atmMachine.EjectDebitCard();
Console.WriteLine("");
// Debit Card has been ejected so internal state of ATM Machine
// has been changed to DebitCardNotInsertedState
Console.WriteLine("ATM Machine Current state : "
+ atmMachine.atmMachineState.GetType().Name);
Console.Read();
}
/*
* Reference: YouTube/Derek Banas
* Allows an object to alter it's behavior when it's internal state changes
* Here, we're trying to achieve a situation where an action could be called in any state of the object and it should be well equiped to handle it.
* For e.g. States like HasCard, NoCard, HasCash, NoCash etc. the ATM Machine could be either of the states, say HasCard - the next logical step would be add PIN which should be handled appropriately. However, if the requests cash directly, then this too should be handled properly.
* Hence, we define an interface IState, all identified States are defined it and equal implementation class are instantiated.
* In the ATM Machine class, we hold instances of these stated and vice versa.
* We'll getter setter methos on ATM Machine for all properties and states.
* This is a fool proof plan if all the states are identified and defined well.
*/
static void Main(string[] args)
{
var atmMachine = new ATMMachine();
atmMachine.insertCard();
atmMachine.ejectCard();
atmMachine.insertCard();
atmMachine.insertPin(1234);
atmMachine.requestCash(1500);
atmMachine.insertCard();
atmMachine.insertPin(1234);
}
public NoCash(ATMMachine newATMMachine)
{
atmMachine = newATMMachine;
}
public NoCash(ATMMachine atm)
{
}
public HasCard(ATMMachine atm)
{
_atm = atm;
}
public HasCard(ATMMachine newATMMachine)
{
atmMachine = newATMMachine;
}
public HasPin(ATMMachine atm)
{
_atm = atm;
}
public HasPin(ATMMachine newATMMachine)
{
atmMachine = newATMMachine;
}
public NoCard(ATMMachine atm)
{
_atm = atm;
}
public HasNoCash(ATMMachine _aTMMachine)
{
aTMMachine = _aTMMachine;
}
public HasPin(ATMMachine _aTMMachine)
{
atmMachine = _aTMMachine;
}
public NoCard(ATMMachine _aTMMachine)
{
aTMMachine = _aTMMachine;
}
public hasCard(ATMMachine _atmMachine)
{
atmMachine = _atmMachine;
}