public EnemyTurnState(BattleSystem system) : base(system) { }
public BeginState(BattleSystem system) : base(system) { }
public LostState(BattleSystem system) : base(system) { }
public PlayerTurnState(BattleSystem system) : base(system) { }
public PauseState(BattleSystem system, State resumeState) : base(system) { _resumeState = resumeState; }
public WonState(BattleSystem system) : base(system) { }
public State(BattleSystem system) { _system = system; }