統一摧毀后如何重生坦克？ （有幾秒鍾的延遲）

Question

我目前實現的function是兩輛坦克可以互相射擊，互相摧毀，被摧毀后無法重生。 我試圖在摧毀它后再次實例化坦克，但是當我這樣做時，實例化的object失去了它的所有屬性。（它不再變得可控或破壞）我的目標是當子彈擊中對手的坦克時，它會摧毀對手. 對方會在4秒延遲后立即消失並在默認的position（或任意位置）中復活。

這是我的代碼：

公共 class 項目符號：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

不要破壞坦克。 把它關掉。 重新打開以重生。

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

實例化很昂貴，並且可能導致幀率故障。

Answer 2

擴展 Hanger 的回應。 你可以使用你的 tank 變量來關閉它：

tank1.SetActive(false);

編輯以包括標題的第二部分，即延遲。 此外，您還需要在 respawn 方法中將new Vector3設置為您想要重生 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));
        }
    }
}