public void EnemyEntered()
 {
     if (mState != State.INACTIVE || mState != State.DEATH || mState != State.WON)
     {
         enemyEntered++;
         mTurretAgent.AddReward(-1.0f);
         GameObject    manager = GameObject.Find("Manager");
         TurretManager tm      = manager.GetComponent <TurretManager>();
         if (enemyEntered >= tm.EnemyEnterToLose)
         {
             tm.ClearAllUnits();
             tm.gameEndState = "You Lost";
             state           = State.DEATH;
         }
     }
 }
    public void Death()
    {
        GameObject turret = GameObject.Find("Turret(Clone)");

        if (turret == null)
        {
            turret = GameObject.Find("Turret Hard(Clone)");
        }
        TurretAgent agent = turret.GetComponent <TurretAgent>();

        agent.AddReward(1.0f);
        health -= 1;
        if (health <= 0)
        {
            Destroy(gameObject);
        }
    }