敌人随机消失

Question

我在游戏中实施了各种各样的敌人但是现在，当我想为所有敌人添加预定义的动作时，我遇到了一个问题。

首先，管理敌人的代码运行良好。敌人只是等待，如果球员离他太近，他就会进攻。

[SerializeField]
private float rotationSpeed = 180;

[SerializeField]
private float movementSpeed = 1f;

[SerializeField]
private float meshRadius = 1f;

private IEnumerator turnTowardsPlayerCoroutine;
private IEnumerator moveTowardsPlayerCoroutine;

private bool isDead = false;

public float speed = 1;

private int maxLife = 3;

void OnTriggerEnter(Collider collider)
{
    if (collider.gameObject.tag == "Player")
    {
        float playerDistance = Vector3.Distance(collider.transform.position, transform.position);

        if (playerDistance >= 2f * meshRadius)
        {
            turnTowardsPlayerCoroutine = TurnTowardsPlayer(collider.transform);
            moveTowardsPlayerCoroutine = MoveTowardsPlayer(collider.transform);
            StartCoroutine(turnTowardsPlayerCoroutine);
            StartCoroutine(moveTowardsPlayerCoroutine);
        }
    }
}

void OnTriggerExit(Collider collider)
{
    if (collider.tag == "Player")
    {
        float playerDistance = Vector3.Distance(collider.transform.position, transform.position);

        if (playerDistance >= 2f * meshRadius)
        {
            StopCoroutine(turnTowardsPlayerCoroutine);
            StopCoroutine(moveTowardsPlayerCoroutine);
        }
    }
}

void OnDeath()
{
    if (isDead)
    {
        return;
    }

    maxLife--;

    if (maxLife <= 0)
    {
        isDead = true;

        GameManager.Instance.NumKilledEnemies++;

        StopCoroutine(turnTowardsPlayerCoroutine);
        StopCoroutine(moveTowardsPlayerCoroutine);

        Destroy(gameObject);
    }
}

private IEnumerator TurnTowardsPlayer(Transform player)
{
    while (true)
    {
        Quaternion targetRotation = Quaternion.LookRotation(player.position - transform.position, Vector3.up);
        targetRotation.x = 0f;
        targetRotation.z = 0f;

        transform.rotation = Quaternion.RotateTowards(transform.rotation, targetRotation, rotationSpeed * Time.deltaTime);
        yield return 0;
    }
}

private IEnumerator MoveTowardsPlayer(Transform player)
{
    while (true)
    {
        Vector3 playerDirection = transform.position - player.position;
        playerDirection.y = 0;
        playerDirection = playerDirection.normalized;

        Vector3 deltaMovement = playerDirection * movementSpeed * Time.deltaTime;

        int layermask = LayerMask.GetMask("Environment");
        Vector3 movingTowards = transform.position - playerDirection * meshRadius + (new Vector3(0f, 0.1f, 0f));
        if (Physics.Raycast(movingTowards, Vector3.down, 0.25f, layermask))
        {
            transform.position -= deltaMovement;
        }

        yield return 0;
    }
}

但在那之后，如果没有人接近他，我想添加一个预定义的敌人运动，所以我做了这样的事情：

private IEnumerator moveDefaultCoroutine;

void Start()
{
    moveDefaultCoroutine = MoveToPosition(new Vector3(transform.position.x, transform.position.y, transform.position.z + 3), 5);
    StartCoroutine(moveDefaultCoroutine);
}

private IEnumerator MoveToPosition(Vector3 newPosition, float time)
{
    while (true)
    {
        float elapsedTime = 0;
        Vector3 startingPos = transform.position;

        while (elapsedTime < time)
        {
            transform.position = Vector3.Lerp(startingPos, newPosition, (elapsedTime / time));
            elapsedTime += Time.deltaTime;
            yield return null;
        }

        yield return new WaitForSeconds(2);
        elapsedTime = 0;

        while (elapsedTime < 0.8)
        {
            transform.eulerAngles = Vector3.Lerp(transform.eulerAngles, new Vector3(0, 180, 0), (elapsedTime / 0.8f));
            elapsedTime += Time.deltaTime;
            yield return null;
        }

        elapsedTime = 0;

        while (elapsedTime < time)
        {
            transform.position = Vector3.Lerp(newPosition, startingPos, (elapsedTime / time));
            elapsedTime += Time.deltaTime;
            yield return null;
        }

        yield return new WaitForSeconds(2);
        elapsedTime = 0;

        while (elapsedTime < 0.8)
        {
            transform.eulerAngles = Vector3.Lerp(transform.eulerAngles, new Vector3(0, 0, 0), (elapsedTime / 0.8f));
            elapsedTime += Time.deltaTime;
            yield return null;
        }
    }
}

这就出现了问题，当我添加此代码时，敌人会随机消失......我做错了什么？

此处的完整代码：http://pastebin.com/tzGczv26

先谢谢！

PokeRwOw