统一摧毁后如何重生坦克？ （有几秒钟的延迟）

Question

我目前实现的function是两辆坦克可以互相射击，互相摧毁，被摧毁后无法重生。 我试图在摧毁它后再次实例化坦克，但是当我这样做时，实例化的object失去了它的所有属性。（它不再变得可控或破坏）我的目标是当子弹击中对手的坦克时，它会摧毁对手. 对方会在4秒延迟后立即消失并在默认的position（或任意位置）中复活。

这是我的代码：

公共 class 项目符号：MonoBehaviour {

GameObject tank1;
GameObject tank2;
public int bullet;


// Start is called before the first frame update
void Awake()
{
    tank1 = GameObject.Find("Tank1");
    tank2 = GameObject.Find("Tank2");

}


void OnTriggerEnter2D(Collider2D other)
{   
    //If the bullet from tank 1 hits the object
    if (bullet == 1)
    {
        if (other.tag == "Wall")
        {
            Destroy(this.gameObject);
        }

        if (other.tag == "Tank2")
        {
            Destroy(this.gameObject);
            Destroy(other.gameObject);
            //tank2 = Instantiate(tank2, transform.position, transform.rotation);

        }
    }
    
   //If the bullet from tank 2 hits the object
    else if (bullet == 2)
    {
        if (other.tag == "Wall")
        {
            Destroy(this.gameObject);
        }

        if (other.tag == "Tank1")
        {
            Destroy(this.gameObject);
            Destroy(other.gameObject);
            //tank1 = Instantiate(tank1, transform.position, transform.rotation);
        }
    }
}

private void Respawn()
{

}

}

Answer 1

不要破坏坦克。 把它关掉。 重新打开以重生。

// Turn it off
gameObject.SetActive(false);

实例化很昂贵，并且可能导致帧率故障。

Answer 2

扩展 Hanger 的回应。 你可以使用你的 tank 变量来关闭它：

tank1.SetActive(false);

编辑以包括标题的第二部分，即延迟。 此外，您还需要在 respawn 方法中将new Vector3设置为您想要重生 object 的任何位置。

GameObject tank1;
GameObject tank2;
public int bullet;


// Start is called before the first frame update
void Awake()
{
    tank1 = GameObject.Find("Tank1");
    tank2 = GameObject.Find("Tank2");

}
    // Toggles active status of GameObject passed to it
void ToggleActiveInScene(GameObject gameObject)
{
    gameObject.SetActive(!gameObject.activeSelf);
}

// If GameObject is disabled, enables and moves it
void Respawn(GameObject gameObject)
{
    if(gameObject.activeSelf == false)
    {
        ToggleActiveInScene(gameObject);
        gameObject.transform.position = new Vector3(7, -2.5f, -0.1f);
    }
}

// A coroutine to delay ToggleActiveInScene
float secondsToWait = 2;
IEnumerator delayedToggleActiveInScene(GameObject gameObject)
{
    yield return new WaitForSeconds(secondsToWait);
    ToggleActiveInScene(gameObject);
}

// // A coroutine to delay Respawn
IEnumerator delayedRespawn(GameObject gameObject)
{
    yield return new WaitForSeconds(secondsToWait);
    Respawn(gameObject);
}

void OnTriggerEnter2D(Collider2D other)
{
    //If the bullet from tank 1 hits the object
    if (bullet == 1)
    {
        if (other.tag == "Wall")
        {
            Destroy(this.gameObject);
        }

        if (other.tag == "Tank2")
        {
            Destroy(this.gameObject);

            // StartCoroutine will start the coroutines like this
            StartCoroutine(delayedToggleActiveInScene(other.gameObject));
            StartCoroutine(delayedRespawn(other.gameObject));
        }
    }

    //If the bullet from tank 2 hits the object
    else if (bullet == 2)
    {
        if (other.tag == "Wall")
        {
            Destroy(this.gameObject);
        }

        if (other.tag == "Tank1")
        {
            Destroy(this.gameObject);
            StartCoroutine(delayedToggleActiveInScene(other.gameObject));
            StartCoroutine(delayedRespawn(other.gameObject));
        }
    }
}