Question

这是我正在制作的球类游戏的脚本。一旦命中Time.timescale，游戏应该会暂停，但不会。

我需要知道我做错了什么，我需要在这里进行更改。

我是Unity和C＃的初学者，所以我可能搞砸了一切。

如果还有其他方法可以暂停游戏而不是使用Time.timescale，我也想知道。

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

public class PauseScript : MonoBehaviour
{
    public bool paused = false;
    void Start()
    {
        paused = false;
        Time.timeScale = 1;
    }

    // Update is called once per frame
    public void Pause()
    {
        if (Input.GetKeyDown("p") && paused == false)
        {
            Time.timeScale = 0;
            paused = true;
        }
        if (Input.GetKeyDown("p") && paused == true)
        {
            Time.timeScale = 1;
            paused = false;
        }
    }
}

Ball.cs

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

public class Ball : MonoBehaviour
{  
    
    //configuration parameter
    [SerializeField] Paddle paddleInitial;
    [SerializeField] float horizontalPush = 2f;
    [SerializeField] float verticalPush = 15f;
    [SerializeField] AudioClip[] ballSounds; 

    //state parameter
    Vector2 paddleToBallVector;
    bool mouseButtonClicked = false;

    //Cached COmponent References
    AudioSource myAudioSource;

    // Start is called before the first frame update
    void Start()
    {
        paddleToBallVector = transform.position - paddleInitial.transform.position;
        myAudioSource = GetComponent<AudioSource>();
    }

    // Update is called once per frame
    void Update()
    {
        if (mouseButtonClicked == false)
        {
            stickBallToPaddle();
            launchOnMouseClick();
        }
        if (Input.GetMouseButtonDown(1))
        {
            GetComponent<Rigidbody2D>().velocity = new Vector2(horizontalPush,verticalPush);
        }
    }

    private void launchOnMouseClick()
    {
        if (Input.GetMouseButtonDown(0))
        {
            mouseButtonClicked = true;
            GetComponent<Rigidbody2D>().velocity = new Vector2(horizontalPush, verticalPush);
        }
    }

    private void stickBallToPaddle()
    {
        Vector2 paddlePosition = new Vector2(paddleInitial.transform.position.x, paddleInitial.transform.position.y);
        transform.position = paddlePosition + paddleToBallVector;
    }

    //audio settings
    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (mouseButtonClicked)
        {
            AudioClip clip = ballSounds[UnityEngine.Random.Range(0, ballSounds.Length)];
           myAudioSource.PlayOneShot(clip);
        }
    }
}

Answer 1

有两个潜在的问题。

您的函数应称为Update，否则将不会每帧运行一次
Input.GetKeyDown返回是否已开始按下某个键，但这会在当前帧中持续存在（仅在下一个Update调用之前重置，因此每次在菜单中调用该键时，它将返回true。相同的Update功能块）

当您按下P键时，您要检查按键是否按下，然后设置暂停标志/时间刻度，但是如果签入相反的更新方法，则要执行另一次操作。

    // Update is called once per frame
    public void Pause()
    {
        // The p key is down and the game isn't paused, set timescale to 0 and paused to true...
        if (Input.GetKeyDown("p") && paused == false)
        {
            Time.timeScale = 0;
            paused = true;
        }

        // The p key is still down since we are on the same frame and paused flag is set so here we set timescale to 1 and paused to false...
        if (Input.GetKeyDown("p") && paused == true)
        {
            Time.timeScale = 1;
            paused = false;
        }
    }

您可能希望确保每次更新仅运行以下条件之一，并确保该函数被称为Update或每帧不会运行一次

    // Update is called once per frame
    public void Update()
    {
        if (Input.GetKeyDown("p") && paused == false)
        {
            Time.timeScale = 0;
            paused = true;
        }
        // Use else to make sure this block only gets executed if the above doesn't
        else if (Input.GetKeyDown("p") && paused == true)
        {
            Time.timeScale = 1;
            paused = false;
        }
    }

可以说，有很多方法可以给猫剥皮。替代代码可能看起来像这样：

public void Update()
{
    if(Input.GetKeyDown("p"))
    {
        // Toggle paused
        paused != paused;
        // Use ternary operator to save lines because making code harder to read is fun
        Time.timeScale = paused ? 0 : 1;
    }
}

-编辑：

还要确保将用于移动等的任何矢量乘以deltaTime每帧-否则仿真将继续。

您可能还需要显式处理其他方面的暂停，例如动画等-这取决于它们的实现方式，但是只要他们考虑逐帧增量，则将timeScale设置为0符合预期。

Time.Timescale不会暂停游戏

1 个答案: