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所以我有这段代码，它是使用航路点让敌人上下移动，它确实有效，但是由于一个奇怪的原因，在航路点之间进行了一些循环之后，它一直到通过顶部航路点的无限远（wp0） ，为什么会这样？？？我一直在玩弄代码，但没有得到适当的行为。

该代码适用于具有运动刚体的 NPC，它“漂浮”在空中，并且可以像马里奥兄弟游戏中的飞行 koopas 一样上下飞行......

public GameObject[] myWaypoints;
float direction = 1f; //1 up, 0 stop. -1 down.
int _myWaypointIndex = 0; // used as index for My_Waypoints
float _moveTime;
float _vx = 0f;
bool _moving = true;
public float waitAtWaypointTime = 1f;   // how long to wait at a waypoint
public bool loopWaypoints = true; // should it loop through the waypoints

void EnemyMovement()
{
    // if there isn't anything in My_Waypoints
    if ((myWaypoints.Length != 0) && (_moving))
    {

        // make sure the enemy is facing the waypoint (based on previous movement)
        Flip(_vx);

        // determine distance between waypoint and enemy
        _vx = myWaypoints[_myWaypointIndex].transform.position.y - _transform.position.y;

        direction = Mathf.Sign(myWaypoints[_myWaypointIndex].transform.position.y);
        Debug.Log("Direction = " + direction);

        // if the enemy is close enough to waypoint, make it's new target the next waypoint
        if (Mathf.Abs(_vx) <= 0.05f)
        {
            Debug.Log("changin to the next waypoint");

            // At waypoint so stop moving
            _rigidbody.velocity = new Vector2(0, 0);

            // increment to next index in array
            _myWaypointIndex++;

            Debug.Log("_myWaypointIndex = " + _myWaypointIndex);
            Debug.Log("Length = " + myWaypoints.Length);
            direction *= -1;
            Debug.Log("New Direction = " + direction);

            // reset waypoint back to 0 for looping
            if (_myWaypointIndex >= myWaypoints.Length)
            {
                Debug.Log("True");
                if (loopWaypoints)
                {
                    _myWaypointIndex = 0;
                }
                else
                {
                    _moving = false;
                }
            }

            // setup wait time at current waypoint
            _moveTime = Time.time + waitAtWaypointTime;
        }
        else
        {
            // enemy is moving
            _animator.SetBool("Moving", true);

            // Set the enemy's velocity to moveSpeed in the y direction.
            _rigidbody.velocity = new Vector2(0.0f, _transform.localScale.y * moveSpeed * direction);

        }

    }
}
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3 回答 3

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我认为问题在于当您将 _myWaypointIndex 重置为 0 时，loopWaypoints 在其他一些函数中，但 else 不会使 NPC 停止，所以可能会继续移动到下一个它找不到的航点，因为索引没有'没有被重置所以_vx距离永远不会是0，尝试检查loopWaypoints是否在你想要的时候改变了值，错误可能在那里。

        if (loopWaypoints)
        {
            _myWaypointIndex = 0;
        }
        else
        {
            _moving = false;
            //Stop the movment 
            moveSpeed = 0;
        }
于 2019-03-08T10:22:28.440 回答
0

也许：如果敌人通过最后一个航路点并且 _vx> 0.05f 会发生什么？

它不会被抓住：

if (Mathf.Abs(_vx) <= 0.05f)
于 2019-03-08T10:28:09.383 回答
0

问题是在 Mathf.abs(_vx) <= 0.05f 中，_vx 值永远不会低于 0.05f。

你应该做的是在航点处附加一个触发器，并在玩家接触到该触发器时更改航点坐标。

或者这样做。

_vx =   Mathf.Abs(myWaypoints 
[_myWaypointIndex].  
transform.position.y) - 
Mathf.Abs(_transform.position.y);

//And then write.

if (_vx <= 0.5f)
   // change coordinate.'''
于 2019-03-08T11:01:26.987 回答