public void ChangeState(GameState newState)
{
if (!GameStates.Contains(newState) && newState != null)
{
throw new InvalidOperationException("You can only set Current property to a GameState instance that is attached to the StateMachine object.");
}
if (!Application.isPlaying)
{
_current = newState;
return;
}
var previous = _current;
if (previous != null)
{
previous.OnStateExit();
}
_current = newState;
if (_current != null)
{
_current.OnStateEnter(previous);
}
if (OnCurrentStateChanged != null)
{
OnCurrentStateChanged(this, new StateChangedEventArgs(previous, _current));
}
}