Question

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MyLookAt : MonoBehaviour
{
    public Transform target;
    public Vector3 offset;

    Transform chest;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void LateUpdate()
    {
        chest.LookAt(target.position);

        ClampRotation(chest.rotation, new Vector3(0, 60, 0));
        chest.rotation = chest.rotation * Quaternion.Euler(offset);
    }

    public static Quaternion ClampRotation(Quaternion q, Vector3 bounds)
    {
        q.x /= q.w;
        q.y /= q.w;
        q.z /= q.w;
        q.w = 1.0f;

        float angleX = 2.0f * Mathf.Rad2Deg * Mathf.Atan(q.x);
        angleX = Mathf.Clamp(angleX, -bounds.x, bounds.x);
        q.x = Mathf.Tan(0.5f * Mathf.Deg2Rad * angleX);

        float angleY = 2.0f * Mathf.Rad2Deg * Mathf.Atan(q.y);
        angleY = Mathf.Clamp(angleY, -bounds.y, bounds.y);
        q.y = Mathf.Tan(0.5f * Mathf.Deg2Rad * angleY);

        float angleZ = 2.0f * Mathf.Rad2Deg * Mathf.Atan(q.z);
        angleZ = Mathf.Clamp(angleZ, -bounds.z, bounds.z);
        q.z = Mathf.Tan(0.5f * Mathf.Deg2Rad * angleZ);

        return q.normalized;
    }
}

我尝试使用 ClampRotation 方法，但它什么也没做。如果目标在他身后，玩家的头部仍然可以旋转 360 度。我想将旋转限制在一些人性化的侧面，也可能是向上/向下。

我试过这个测试 Y（向上/向下）

Vector3 chestAngle = chest.eulerAngles;
        chestAngle.y = (chestAngle.y > 180) ? chestAngle.y - 360 : chestAngle.y;
        chestAngle.y = Mathf.Clamp(chestAngle.y, -50, 50);    
        chest.rotation = Quaternion.Euler(chestAngle);

但它夹住了 Z 而不是 Y。它夹住了左边而不是上/下。我要夹上/下和左/右

Answer 1

您永远不会将固定值分配给旋转。

chest.rotation = ClampRotation(chest.rotation, new Vector3(0, 60, 0));

Answer 2

忘记 ClampRotation 函数并尝试以下代码：

Vector3 chestAngle = chest.rotation.eulerAngles;
chestAngle.y = (chestAngle.y > 180) ? chestAngle.y - 360 : chestAngle.y;
chestAngle.y = Mathf.Clamp(chestAngle.y, -50 , 50);
chest.rotation = Quaternion.Euler(chestAngle);

我怎样才能夹紧旋转？

2 个答案: