public IGumballMachineState GetSoldState()
{
if (_soldState == null)
{
_soldState = new SoldState(_gumballMachine, this);
}
return(_soldState);
}
public IGumballMachineState GetHasCoinState()
{
if (_hasCoinState == null)
{
_hasCoinState = new HasCoinState(_gumballMachine, this);
}
return(_hasCoinState);
}
public IGumballMachineState GetNoCoinState()
{
if (_noCoinState == null)
{
_noCoinState = new NoCoinState(_gumballMachine, this);
}
return(_noCoinState);
}
public IGumballMachineState GetStartingState()
{
if (_startingState == null)
{
_startingState = new ErrorState(_gumballMachine, this, new Exception("Starting state undefined."));
}
return(_startingState);
}
public GumballMachine(int numGumballs)
{
_soldOutState = new OutOfGumballsState(this);
_noQuarterState = new NoQuarterState(this);
_hasQuarterState = new HasQuarterState(this);
_soldState = new GumballSoldState(this);
_winnerState = new GumballWinnerState(this);
_gumballCount = numGumballs;
_state = _gumballCount > 0 ? _noQuarterState : _soldOutState;
}
public GumballMachine(int totalGumballs)
{
_soldOutState = new SoldOutState(this);
_noQuarterState = new NoQuarterState(this);
_hasQuarterState = new HasQuarterState(this);
_soldState = new SoldState(this);
_totalGumballs = totalGumballs;
if (totalGumballs > 0)
{
_state = _noQuarterState;
}
else
{
_state = _soldOutState;
}
}
public void EjectCoin()
{
_state = _state.EjectCoin();
}
public void InsertCoin()
{
_state = _state.InsertCoin();
}
public void SetState(IGumballMachineState state)
{
_state = state;
}
internal void SetState(IGumballMachineState state)
{
_state = state;
}
public StateFactory(GumballMachine gumballMachine, IGumballMachineState startingState)
{
_gumballMachine = gumballMachine;
_startingState = startingState;
}
public IGumballMachineState GetErrorState(Exception e = null)
{
_errorState = new ErrorState(_gumballMachine, this, e);
return(_errorState);
}
public IGumballMachineState GetSoldOutState()
{
_soldOutState = new SoldOutState(_gumballMachine, this);
return(_soldOutState);
}
internal void SetNextState(IGumballMachineState nextState)
{
_nextState = nextState;
}
public void TurnLever()
{
_state = _state.TurnLever();
}
private void LoadNextState()
{
_currentState = _stateFactory.GetNextState();
}
public StateFactory(GumballMachine gumballMachine)
{
_gumballMachine = gumballMachine;
_startingState = new ErrorState(_gumballMachine, this, new Exception("Starting state undefined."));
}
