public void ChangeState(AIState newstate)
    {
        if (AIState == newstate)
        {
            return;
        }
        Debug.Log(newstate);
        if (_currentBehaviour)
        {
            _currentBehaviour.ExitBehaviour();
        }

        AIState = newstate;

        switch (newstate)
        {
        case AIState.Calm:
            _currentBehaviour = GetNextBehaviour(CalmBehaviours, _usedCalmBehaviours);
            break;

        case AIState.Sense:
            _currentBehaviour = GetNextBehaviour(SenseBehaviours, _usedSenseBehaviours);
            break;

        case AIState.Agessive:
            _currentBehaviour = GetNextBehaviour(AggressiveBehaviours, _usedAggressiveBehaviours);
            break;

        case AIState.Dead:
            _currentBehaviour = null;
            break;

        default:
            break;
        }

        if (_currentBehaviour)
        {
            _currentBehaviour.EnterBehaviour();
        }
    }