特定时间后如何停止纹理滚动 [英] How to stop Texture scrolling after certain time

问题描述

我下面有这段代码，只需用Quad滚动背景即可.我的问题是一段时间后如何停止背景滚动.例如，我想在到达滚动图像的末尾后，将最后一个可见的块锁定为关卡其余部分的背景.由于我的播放器具有恒定的速度，因此我想到了类似的效果:大约20秒钟后，停止滚动并保持图像可能.我对Unity真的很陌生，我不确定该怎么做，也找不到可行的方法.我会感谢您的帮助！

I have this code below which, just makes a scrolling background with a Quad. My question is how can I stop the scrolling of the background after a certain time. For example, I want after I reach the end of my scrolling image, the last visible piece to be locked as the background for the rest of the level. Since my player has a constant speed I imagined that something like: after maybe 20 seconds, stop scrolling and keep the image would be possible. I am really new to Unity and I am not really sure how to do it nor I found a way that works. I would appreciate the help!

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

public class BG : MonoBehaviour
{

    public float speed;
    void Start()
    {

    }
    void Update()
    {
        Vector2 offset = new Vector2(0, Time.time * speed);
        GetComponent<Renderer>().material.mainTextureOffset = offset;
    }
}

推荐答案

您可以使用带有Time.deltaTime和Update函数的简单计时器或在协程中执行此操作.只需使用Time.deltaTime递增计时器变量，直到达到您的目标 30 秒.

You can do this with a simple timer with Time.deltaTime an Update function or in the a coroutine. Just increment you timer variable with Time.deltaTime until it reaches your target which is 30 seconds in your case.

float timer = 0;
bool timerReached = false;
const float TIMER_TIME = 30f;

public float speed;

void Update()
{
    if (!timerReached)
    {
        timer += Time.deltaTime;

        Vector2 offset = new Vector2(0, Time.time * speed);
        GetComponent<Renderer>().material.mainTextureOffset = offset;
    }


    if (!timerReached && timer > TIMER_TIME)
    {
        Debug.Log("Done waiting");

        //Set to false so that We don't run this again
        timerReached = true;
    }
}

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