c# - 实例化 C# 时更改附加脚本中 var 的值

Question

我不能对我实例化的这个“子弹”应用任何东西，我不能访问它上面的脚本。在实例化之后，我希望附加到它的 scriptbullter 中的 var 取值 1。

if (Input.GetMouseButton (1) && canFire) {

    var mousePosition = FindObjectOfType<Camera> ().ScreenToWorldPoint (new Vector3 (Input.mousePosition.x, Input.mousePosition.y, Input.mousePosition.z - FindObjectOfType<Camera> ().transform.position.z));

    GetComponent<Rigidbody2D> ().transform.eulerAngles = new Vector3 (0, 0, Mathf.Atan2 ((mousePosition.y - transform.position.y), (mousePosition.x - transform.position.x)) * Mathf.Rad2Deg - 90);

    bullet bulletobj = Instantiate (bulletFired, transform.position + transform.forward * 2, Quaternion.identity) as bullet;
    bulletobj.GetComponent<scriptbullet>().bulletDamages = 1; //this line doesn't work

    bulletobj.GetComponent<Rigidbody2D> ().velocity = (mousePosition - transform.position).normalized * bulletSpeed * Time.smoothDeltaTime;

    canFire = false;
}

在此先感谢大家 :D

Answer 1

bulletobj.GetComponent<scriptbullet>()失败是因为 bulletobj一片空白。从 Instantiate 返回的对象不是 bullet而是一个 GameObject ，将该行代码更改为

GameObject bulletobj = Instantiate (bulletFired, transform.position + transform.forward * 2, Quaternion.identity) as GameObject;