当它朝某个方向移动时翻转游戏对象

Question

我正在制作一个玩家只能上下左右移动的 2.5D 游戏；无 X 轴

我有这样的控件设置：

using UnityEngine;

public class Movement : MonoBehaviour
{
    public float speed = 8;
    private Vector3 scale = new Vector3(5, 5, 5);
    private Rigidbody rb;


    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    void Update()
    {
        transform.localScale = scale;

        if (Input.GetKey(KeyCode.S))
        {
            transform.localScale = new Vector3(5, 2, 5);
        }
    }

    void FixedUpdate()
    {
        float mH = -Input.GetAxis("Horizontal");

        rb.velocity = new Vector3(0, rb.velocity.y, mH * speed);

    }
}

问题是角色在朝相反的方向前进时应该转弯，我可以通过旋转来翻转它或将 Z 比例设置为负值，但这会使它立即转动，我想让它在几帧的跨度内转动，这样看起来就不会不自然。我怎样才能继续实施这样的事情？甚至可以统一吗？

例子 i have vs 我会 like to have:

Answer 1

Is it even possible in unity?

大多数事情都是可能的..问题总是需要多少努力;)

可能有很多方法可以实现。

我会简单地向所需的前进方向平滑插值。比如

public class Movement : MonoBehaviour
{
    public float speed = 8;
    private Vector3 normalScale = new Vector3(5, 5, 5);
    private Vector3 duckedScale = new Vector3(5, 2, 5);
    private Rigidbody rb;

    public float rotationSpeed = 5f;

    private Vector3 targetForwardDirection;
    private Vector3 currentForwardDirection;

    void Start()
    {
        rb = GetComponent<Rigidbody>();

        targetForwardDirection = transform.forward;
        currentForwardDirection = transform.forward;
    }

    void Update()
    {
        transform.localScale = Input.GetKey(KeyCode.S) ? duckedScale : normalScale;
    }

    void FixedUpdate()
    {
        var mH = -Input.GetAxis("Horizontal");

        rb.velocity = new Vector3(0, rb.velocity.y, mH * speed);

        if (!Mathf.Approximately(mH, 0))
        {
            targetForwardDirection = new Vector3(0, 0, mH * speed).normalized;
        }

        currentForwardDirection = Vector3.Slerp(currentForwardDirection, targetForwardDirection, rotationSpeed * Time.deltaTime);
        
        rb.MoveRotation(Quaternion.LookRotation(currentForwardDirection));
    }
}

当它朝某个方向移动时翻转游戏对象

Flip gameObject when it goes a certain direction

c#

unity3d

rigid-bodies