如何在与玩家碰撞后让敌人停下来一秒钟？团结[重复]

Question

敌人撞到玩家后我想让他停下一段时间，所以它不会一直追着他。看起来很奇怪。比如，添加一个调用函数或其他东西（不是专业人士）。请立即实施（我只是一个初学者）这是代码（我正在学习一些 7 小时的教程）：

// Experience
public int xpValue = 1;

//Particle system
public GameObject effect;

// Logic
public float triggerLength = 1;
public float chaseLength = 5;
public bool chasing;
public bool collidingWithPlayer;
private Transform playerTransform;
private Vector3 startingPosition;

// Hitbox
public ContactFilter2D filter;
private BoxCollider2D hitbox;
private Collider2D[] hits = new Collider2D[10];

protected override void Start()
{
    base.Start();
    playerTransform = GameManager.instance.player.transform;
    startingPosition = transform.position;
    hitbox = transform.GetChild(0).GetComponent<BoxCollider2D>();
}

protected void FixedUpdate(){
    //Is the player in range?
    if(Vector3.Distance(playerTransform.position, startingPosition) < chaseLength)
    {
        if(Vector3.Distance(playerTransform.position, startingPosition) < triggerLength)
        chasing = true;

        if (chasing){
            if(!collidingWithPlayer){
                UpdateMotor((playerTransform.position - transform.position).normalized);
            }
        }
        else{
            UpdateMotor(startingPosition - transform.position);
        }
    }
    else{
        UpdateMotor(startingPosition - transform.position);
        chasing = false;
    }

    //Check for overlap
    collidingWithPlayer = false;
    boxCollider.OverlapCollider(filter, hits); // null reference expection
    for (int i = 0; i < hits.Length; i++)
    {
        if (hits[i] == null)\

            continue;

            if(hits[i].tag == "Fighter" && hits[i].name == "Player"){
                collidingWithPlayer = true;
            }

        //this array is not cleaned up, so we do it ourself
        hits[i] = null;
    }
}

Answer 1

您可能希望使用协程或计时器来实现此目的。 这是未经测试的，可能可以对此进行一些优化。

计时器

private bool hasAttacked = false;

private float attackTimer = 0;
private float waitTime = 0.5f;

private void Update()
{
   if (!hasAttacked)
   {
      hasAttacked = true;
      attack();
      attackTimer = Time.time + waitTime;
   }
   else
   {
      if ( Time.time > attackTimer)
      {
         hasAttacked = false;
      }
   }
}

这个sn-p会运行一个攻击函数，然后等待0.5秒，再次运行代码。

Answer 2

最简单的解决方案是研究协程。它们在主线程上运行，但可以暂停并等待延迟或事件。

bool CanAttack()
{
    return true; //Check if can attack here
}

void Attack()
{
    //Put your attacking code here
}

void Start()
{
    StartCoroutine(AttackLoop());
}

IEnumerator AttackLoop()
{
    while (true)
    {
        //Check if enemy can attack
        if (CanAttack())
        {
            Attack();
            //Waits 2 seconds before continuing
            yield return new WaitForSeconds(2f);
        }

        //Wait one frame
        //Prevents an infinite loop
        yield return null;
    }
}