public void InsertQuarter()
{
switch (_currentState)
{
case GumbalMachineState.SoldOut:
Console.WriteLine("You can't insert a quarter, the machine is sold out");
break;
case GumbalMachineState.NoQuarter:
Console.WriteLine("You inserted a quarter");
++QuartersCount;
_currentState = GumbalMachineState.HasQuarter;
break;
case GumbalMachineState.HasQuarter:
if (QuartersCount < MaxQuartersCount)
{
Console.WriteLine("Inserting quarter");
++QuartersCount;
}
else
{
Console.WriteLine("Max quarters count in machine");
}
break;
case GumbalMachineState.Sold:
Console.WriteLine("Please wait, we're already giving you a gumball");
break;
}
}
public void EjectQuarter()
{
switch (_currentState)
{
case GumbalMachineState.SoldOut:
if (QuartersCount != 0)
{
Console.WriteLine("Ejecting quarters");
QuartersCount = 0;
}
else
{
Console.WriteLine("Machine not has quarters");
}
break;
case GumbalMachineState.NoQuarter:
Console.WriteLine("You haven't inserted a quarter");
break;
case GumbalMachineState.HasQuarter:
Console.WriteLine("Quarters returned");
QuartersCount = 0;
_currentState = GumbalMachineState.NoQuarter;
break;
case GumbalMachineState.Sold:
Console.WriteLine("Sorry you already turned the crank");
break;
}
}
private void Dispense()
{
switch (_currentState)
{
case GumbalMachineState.SoldOut:
case GumbalMachineState.HasQuarter:
Console.WriteLine("No gumball dispensed");
break;
case GumbalMachineState.NoQuarter:
Console.WriteLine("You need to pay first");
break;
case GumbalMachineState.Sold:
Console.WriteLine("A gumball comes rolling out the slot");
--BallsCount;
if (BallsCount == 0)
{
Console.WriteLine("Oops, out of gumbals");
_currentState = GumbalMachineState.SoldOut;
}
else if (QuartersCount == 0)
{
_currentState = GumbalMachineState.NoQuarter;
}
else
{
_currentState = GumbalMachineState.HasQuarter;
}
break;
}
}
public void AddBalls(uint ballsCount)
{
switch (_currentState)
{
case GumbalMachineState.SoldOut:
Console.WriteLine($"We are have added {ballsCount} gumball{( ballsCount != 1 ? "s" : "" )}");
BallsCount += ballsCount;
_currentState = GumbalMachineState.NoQuarter;
break;
case GumbalMachineState.NoQuarter:
case GumbalMachineState.HasQuarter:
Console.WriteLine($"We are have added {ballsCount} gumball{( ballsCount != 1 ? "s" : "" )}");
BallsCount += ballsCount;
break;
case GumbalMachineState.Sold:
Console.WriteLine("Please wait, we're giving you a gumball now");
break;
}
}
public void TurnCrank()
{
switch (_currentState)
{
case GumbalMachineState.SoldOut:
Console.WriteLine("You turned but there's no gumballs");
break;
case GumbalMachineState.NoQuarter:
Console.WriteLine("You turned but there's no quarter");
break;
case GumbalMachineState.HasQuarter:
Console.WriteLine("You turned...");
--QuartersCount;
_currentState = GumbalMachineState.Sold;
Dispense();
break;
case GumbalMachineState.Sold:
Console.WriteLine("Turning twice doesn't get you another gumball");
break;
}
}
public GumbalMachine(uint ballsCount)
{
BallsCount = ballsCount;
_currentState = BallsCount > 0 ? GumbalMachineState.NoQuarter : GumbalMachineState.SoldOut;
}
