Unity C#限制轨道旋转位置

Question

这是我到目前为止编写的代码，它用于围绕空间中的一个点运行的相机。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Lean.Touch;

public class CameraOrbit : TopClass
{
    [Tooltip("Ignore fingers with StartedOverGui?")]
    public bool ignoreGuiFingers = true;

    [Tooltip("Ignore fingers if the finger count doesn't match? (0 = any)")]
    public int requiredFingerCount = 1;

    [Tooltip("The sensitivity of the movement, use -1 to invert")]
    public float sensitivity = 0.25f;

    public Vector3 target = Vector3.zero;

    protected void LateUpdate()
    {
        // Get the fingers we want to use
        List<LeanFinger> fingers = LeanTouch.GetFingers(ignoreGuiFingers, requiredFingerCount);

        // Get the scaled delta of all the fingers
        Vector2 delta = LeanGesture.GetScaledDelta(fingers);

        transform.RotateAround(target, Vector3.up, delta.x * sensitivity);
        transform.RotateAround(target, Vector3.right, delta.y * sensitivity);

        transform.LookAt(target);
    }
}

到目前为止效果很好，但是有两件事很烦人，我不知道如何解决

1. 最大的问题是当相机到达顶部时，如果用户不断向上移动，事情会变得很奇怪。相机开始旋转，世界旋转等等...我希望相机在接近顶部或底部时停止。
2. 相机的旋转可能会变得很奇怪，我希望它始终指向上方，并且永远不会稍微或完全向右或向左旋转，尤其是倒置。总是向上。

经过大量 Google 搜索后，我尝试了这些链接

• http://wiki.unity3d.com/index.php?title=MouseOrbitImproved
• https://answers.unity.com/questions/363353/how-to-limit-a-transform-movement-in-x-axis.html
• https://answers.unity.com/questions/438836/limit-camera-rotation-with-rotatearound.html
• https://answers.unity.com/questions/1087351/limit-vertical-rotation-of-camera.html
• https://answers.unity.com/questions/1370422/limit-y-axis-transformrotatearound.html

但它们都不能正常工作，或者我无法让它们适应我的需要

任何帮助都会很棒，在此先感谢

Answer 1

所以我想到目前为止我找到了答案。我也让某人进行了测试，他们很喜欢它，所以我可能已经找到了解决方案。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Lean.Touch;

public class CameraOrbit : TopClass
{
    [Tooltip("Ignore fingers with StartedOverGui?")]
    public bool ignoreGuiFingers = true;

    [Tooltip("Ignore fingers if the finger count doesn't match? (0 = any)")]
    public int requiredFingerCount = 0;

    [Tooltip("The sensitivity of the movement, use -1 to invert")]
    public float sensitivity = 0.25f;

    public float min = 45f;
    public float max = 315f;

    public Vector3 target = Vector3.zero; //this is the center of the scene, you can use any point here

    protected void LateUpdate()
    {
        // Get the fingers we want to use
        List<LeanFinger> fingers = LeanTouch.GetFingers(ignoreGuiFingers, requiredFingerCount);

        // Get the world delta of all the fingers
        Vector2 delta = LeanGesture.GetScaledDelta(fingers);

        transform.RotateAround(target, Vector3.up, delta.x * sensitivity);
        transform.RotateAround(target, Vector3.right, delta.y * sensitivity);

        Vector3 angles = transform.eulerAngles;
        angles.x = Mathf.Clamp(angles.x, min, max);
        angles.y = Mathf.Clamp(angles.y, min, max);
        angles.z = 0;
        transform.eulerAngles = angles;

        transform.LookAt(target);
    }
}

如果我希望相机始终向上，在我的情况下，它会将 z 轴保持在 0。只需检查 x 和 y 轴。

如果它对任何人有帮助，我从上面修改的唯一内容是

...
public float min = 45f;
public float max = 315f;
...
Vector3 angles = transform.eulerAngles;
angles.x = Mathf.Clamp(angles.x, min, max);
angles.y = Mathf.Clamp(angles.y, min, max);
angles.z = 0;
transform.eulerAngles = angles;

感谢@yes 为我指明了正确的方向