刚体Rigidbody.MoveRotation控制物体旋转

Rigidbody.MoveRotation

public void MoveRotation(Quaternion rot);   

Description:

Rotates the rigidbody to rotation.

Use Rigidbody.MoveRotation to rotate a Rigidbody, complying with the Rigidbody's interpolation setting.

If Rigidbody interpolation is enabled on the Rigidbody, calling Rigidbody.MoveRotation will resulting in a smooth transition between the two positions in any intermediate frames rendered. This should be used if you want to continuously rotate a rigidbody in each FixedUpdate.

Set Rigidbody.rotation instead, if you want to teleport a rigidbody from one rotation to another, with no intermediate positions being rendered.

例子：

using UnityEngine;
using System.Collections;
public class DemoController : MonoBehaviour {

    public Rigidbody player;
    public Transform enemy;
    private float speed = 10;
    
    private void Update()
    {
        if (Input.GetKey(KeyCode.Space))
        {
            Vector3 dir = enemy.position - player.position;
            dir.y = 0;
            Quaternion target = Quaternion.LookRotation(dir);
            player.transform.rotation = Quaternion.Slerp(player.rotation, target, Time.deltaTime);
        }
    }
}