unity update skipping calculation in a frame

Question

我正在实例化瓦片作为路径，在每四个实例化的瓦片上，它们应该开始向右实例化，在四个实例化之后，它们再次直走。

为了检查这个逻辑，我创建了一个变量 spawnOffset 并且每帧递增 +1。

if spawnOffset % 4 == 0 改变方向

但是，我没有定期改变方向，当我调试时，跳帧，逻辑也是如此

public GameObject go;
    public Transform Playertransform;


    public Vector3 tileSpawnOffset = Vector3.zero;
    private Vector3 direction = Vector3.forward;
    public int SpawnOffset = -3;
    private bool turnRight = false;


    void Update()
    {
        SpawnPath();
        ChangeDirection();
    }

    void SpawnPath()
    {
        if (Playertransform.position.z > SpawnOffset)
        {
            tileSpawnOffset += direction;
            Instantiate(go, this.transform.position + tileSpawnOffset, this.transform.rotation, this.transform);
            SpawnOffset++;
        }

    }

    void ChangeDirection()
    {
        if (SpawnOffset % 4 == 0)
        {
            turnRight = !turnRight;
        }

        direction = turnRight == true ? Vector3.right : Vector3.forward;



    }

但是当我尝试用时间代替时

float time = 0f;
 void ChangeDirection()
    {
        time += Time.deltaTime;
        if (time > 1)
        {
            turnRight = !turnRight;
            time = 0;
        }

        direction = turnRight == true ? Vector3.right : Vector3.forward;

    }

它工作得很好。所以，我该如何解决它。我，不想使用时间，我想在生成 4 个瓷砖后恰好改变方向

Answer 1

因为你总是同时调用 SpawnPath();改变方向（）; everyframe if (Playertransform.position.z > SpawnOffset) is ever false in false twice your turnright bool gets flipped regardless every frame you on a multiple of 4. 如果你没有生成新的图块，则不需要调用 ChangeDirection .如果您只是从更新中删除该调用并在增量 SpawnOffset 之后立即添加它，它可能会修复它。

unity update skipping calculation in a frame

unity update skipping calculation in a frame

unity3d

c#-4.0