/**
* HeadMachine 시동
* @param initState 작동시 초기화 할 상태
*/
public void Begin(IState initState)
{
currentState = initState;
prevState = initState;
if (currentState != null)
{
currentState.OnEnter();
}
}
/**
* HeadMachine 상태 변경
* @param nextState 변경할 상태
*/
public void SetState(IState nextState)
{
if (currentState == nextState)
{
return;
}
prevState = currentState;
if (currentState != null)
{
currentState.OnExit();
}
currentState = nextState;
currentState.OnEnter();
}
