无法将类型"UnityEngine.GameObject"转换为"UnityEngine.Rigidbody"

Question

我有一些错误！

UNITY 3D

    Rigidbody bullet = (Rigidbody)Instantiate(projectile, transform.position + transform.forward, transform.rotation);
    bullet.AddForce(transform.forward * bulletImpulse, ForceMode.Impulse);

但是我在此代码中有错误

无法转换类型UnityEngine.GameObject' to UnityEngine.RigidBody'

感谢您的帮助请帮助！

Answer 1

Instantiate方法返回GameObject，而不是Rigidbody。Rigidbody是该游戏对象的组件，因此要获得它，您必须致电GetComponent：

GameObject gameObject = (GameObject)Instantiate(projectile, transform.position + transform.forward, transform.rotation);
Rigidbody bullet = gameObject.GetComponent<Rigidbody>();

Answer 2

您需要获取要使用的组件：

https://docs.unity3d.com/ScriptReference/GameObject.GetComponent.html

最终代码：

Rigidbody bullet = ((GameObject)Instantiate(projectile, transform.position + transform.forward, transform.rotation)).GetComponent<Rigidbody>();
bullet.AddForce(transform.forward * bulletImpulse, ForceMode.Impulse);