Unity实现桌面反弹的示例代码

一：演示视频

二：代码实现

using UnityEngine;
 
public class Ball : MonoBehaviour
{
    private Rigidbody rigid;
 
    private Vector3 lastDir;
 
    public float speed = 30;
 
    private void Awake()
    {
        rigid = GetComponent<Rigidbody>();
 
        rigid.velocity = new Vector3(1, 0, 1) * speed;
    }
 
    private void LateUpdate()
    {
        lastDir = rigid.velocity;
    }
 
    private void OnCollisionEnter(Collision other)
    {
        if (other.gameObject.tag == "Wall")
        {
            Vector3 reflexAngle = Vector3.Reflect(lastDir, other.contacts[0].normal);
            rigid.velocity = reflexAngle.normalized * lastDir.magnitude;
        }
    }
}

也可以添加

创建物理材质

修改值就可以发生反弹碰撞了