如何更正我的旋转平台脚本并修复 Unity 中的错误纹理？

Question

我目前正在以初学者的身份制作 2D 游戏，有人为我制作了一个用于旋转平台的脚本，该脚本在特定秒数后停止。但它有错误的质地。它总是颠倒的，即使它转过一次。就像在屏幕截图上一样。除此之外，关于平台的两件事不再适用于他制作的脚本。旋转速度和顺时针旋转。我将把两个不同的脚本放在屏幕截图下方。我希望你能理解这一点，如果你有任何问题，请随时提出。

谢谢！

截图：

之前的脚本：

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

public class Spinning_Platform : MonoBehaviour
{
    private float rotZ;
    public float RotationSpeed;
    public bool ClockwiseRotation;

    void Update()
    {
        if (ClockwiseRotation==false)
        {
            rotZ += Time.deltaTime * RotationSpeed;
        }
        else
        {
            rotZ += -Time.deltaTime * RotationSpeed;
        }

        transform.rotation = Quaternion.Euler(0, 0, rotZ);
    }
}

脚本之后：

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

public class Spinning_Platform : MonoBehaviour
{
    public float rotZ;
    public float RotationSpeed;
    public bool ClockwiseRotation;
    public float time = 1;

    void Update()
    {
        time -= Time.deltaTime;
        if (time <= 0)
        {
            rotZ += 10;
            transform.rotation = Quaternion.Euler(0, 0, rotZ);
            if (rotZ == 180)
            {
                rotZ = 0;
                time = 1;
            }
        }
    }
}

Answer 1

新脚本有很多缺陷

• using == for float value
• frame-rate dependent rotation 每帧 10°。所以基本上它需要大约 36 帧来执行一个完整的旋转..假设 60fps 这几乎是每秒两个完整的旋转
• 在到达180 时只需重置旋转...为什么？
• 它实际上一秒钟内什么都不做，然后旋转 - 据我了解，您宁愿在一秒钟内旋转然后蹲下

我会使用你的第一种方法，只添加时间计数器

public class Spinning_Platform : MonoBehaviour
{
    public float RotationSpeed;
    public bool ClockwiseRotation;

    // How long to rotate in seconds
    public float Duration = 1f;
    // Should this object be spinning right from the beginning?
    public bool startsSpinning = true;

    private float timer;

    private void Start ()
    {
        if(startsSpinning) Spin();
    }

    void Update()
    {
        // Rotate as long as the timer is not expired
        if(timer <= 0) return;

        // reduce the timer by time passed since last frame
        timer -= Time.deltaTime;

        // rotate the object on the global Z axis
        transform.Rotate(0, 0, (ClockwiseRotation ? 1 : -1) * RotationSpeed * Time.deltaTime, Space.World);
    }

    // This way you can also disable the spinning from start
    // and/or spin the object (again) via code
    public void Spin()
    {
        timer = Duration;
    }
}

---

编辑

因为我只知道您的其他问题，您的平台实际上是Rigidbody2D，所以您不应该使用Transform 组件，而应该使用类似

[SerializeField] private Rigidbody2D _rigidbody;

private void Awake ()
{
    if(!_rigidbody) _rigidbody = GetComponent<Rigidbody2D>();
}

// Remove the Update entirely

void FixedUpdate()
{
    // Rotate as long as the timer is not expired
    if(timer <= 0) return;

    // reduce the timer by time passed since last frame
    timer -= Time.deltaTime;

    // rotate the object on the global Z axis
    _rigidbody.MoveRotation(_rigidbody.rotation + (ClockwiseRotation ? 1 : -1) * RotationSpeed * Time.deltaTime);
}