private void Awake()
{
fsm = new FSMSystem <PlayerST, PlayerSN> ();
var idle = new PlayerIdle(PlayerSN.Idle);
idle.AddTransition(PlayerST.InputA, PlayerSN.Run);
var run = new PlayerRun(PlayerSN.Run);
run.AddTransition(PlayerST.InputB, PlayerSN.Idle);
fsm.AddState(idle);
fsm.AddState(run);
fsm.SetCurrentState(PlayerSN.Idle);
Debug.Log(fsm.states.Count);
}
