敌人追击玩家

Question

我正在尝试编写一个脚本，让敌人追赶玩家大约 2 秒然后停止。我想让玩家遇到一个盒子碰撞器，当这种情况发生时，敌人会追赶玩家 2 秒。我已经尝试了一段时间但没有运气。我希望有更多技能的人可以帮助我编写这段代码，以便它可以使用 Unity 2d 正常工作。谢谢

void Start()
{
    var x = 0;
    var y = 0;
    player = GameObject.Find("Player").GetComponent<PlayerMovement>().playerBox;
}

public void OnCollisionEnter2D(Collision2D collision)
{
    //If the player is touching the knights targetting box, then run the command to chase.
    if (collision.collider.tag == "Player")
    {
        isChasing = true;
        chase();
    }
}
public void chase()
{
    if (isChasing)
    {
        var x = playerTransform.position.x - enemyTransform.position.x;
        var y = playerTransform.position.y - enemyTransform.position.y;
        knightRB.velocity = new Vector2(x / 20, y / 20);
StartCoroutine(StopChasing());
    }
}
IEnumerator StopChasing()
{
    yield return new WaitForSeconds(2);
    isChasing = false;
}

Answer 1

以下是我的实现：

Transfrom target;
bool isChasing;
float speed = 5;
RigidBody knightRB;

// -----------------------------------------------------------------------------
// Sets up the knight
void Start()
{
    target = GameObject.Find("Player").transform;
    knightRB = GetComponent<RigidBody>();
}

// -----------------------------------------------------------------------------
//Checks for a collision with the player
void OnCollisionEnter2D(Collision2D collision)
{
    //If the player is touching the knights targetting box, then run the command to chase.
    if (collision.collider.tag == "Player" && !isChasing)
    {
        StartCoRoutine(ChaseSequence());
    }
}

// -----------------------------------------------------------------------------
// handles the chase
void FixedUpdate()
{
    Chase();
}

void Chase()
{
    if (!isChasing)
        return;

    var direction = (target.position - transform.position).normalized;
    knightRB.MovePosition(transfrom.position + direction * Time.deltaTime * speed); 
}

// -----------------------------------------------------------------------------
// Stops and starts the chase sequence
IEnumerator ChaseSequence()
{
    isChasing = true;
    yield return new WaitForSeconds(2);
    isChasing = false;
}

我做了一些假设。主要是这个剧本属于骑士。对撞机也是与环境相互作用的。物理意义。如果您有一个进行检测的触发器，您应该使用

OnTriggerEnter

而不是

OnCollisionEnter

Answer 2

您可以使用统一的内置导航网格代理，我认为这可以解决您的问题，就像您可以做的那样

_agent = this.GetComponent<NavMeshAgent>();
_player = this.GetComponent<Transform>();
void OnCollisionEnter(Collision collision)
{
    _agent.destination = _player.position;
}

我不知道我提供的代码是否适用于您的实例，您可能需要针对您的特定游戏进行修改。