异步编程学习

news2024/9/20 7:53:13

UniTask

UniTask
访问UniTask的GitHub的主页可以直接下载unity Package进行导入，或者通过 Package Manager导入，导入完成之后根据文档加一下宏定义“UNITASK_DOTWEEN_SUPPORT”
这样就可以正常的控制DoTween了

在这里插入图片描述

2.UniTask 的简单使用

// UniTask 是可以作用到DoTween上的 
using Cysharp.Threading.Tasks;
using DG.Tweening;
using System;
using System.Threading;
using UnityEngine;
using UnityEngine.UI;

public class UnitaskCancel : MonoBehaviour
{
	//当我们点击取消按钮的时候 会发送一个取消指令，接收到指令的UniTask都会取消
	// CacellationTokenSource 是原生的类
    private CancellationTokenSource cts = new CancellationTokenSource();
    [SerializeField] private Button cancelButton;
    [SerializeField] private Transform cube;
    private UniTask[] cancelTaskArray;
    
    private void Awake()
    {
        cancelButton.onClick.AddListener(cancel);
        InitUniTask();
    }
	
    private async void InitUniTask() {
        UniTask one = cube.DOMove(new Vector3(5, 0, 5), 2f).SetEase(Ease.InOutQuart).ToUniTask(cancellationToken:cts.Token);
        UniTask two = cube.DOScale(new Vector3(2, 2, 2), 5f).SetEase(Ease.InOutQuart).ToUniTask(cancellationToken: cts.Token);
        UniTask three = cube.DORotate(new Vector3(90, 90, 90), 2f).SetEase(Ease.InOutQuart).OnComplete(()=>{
            Debug.Log("CompleteDORotate");
        }).ToUniTask(cancellationToken: cts.Token);
        cancelTaskArray = new UniTask []{ one, two,three };
		// 等待全部的任务完成才会继续执行
		// 注意这里的任务 是一起开始的，如果想要一个一个完成 需要直接await 具体的Unitask
        var waitAll = UniTask.WhenAll(cancelTaskArray);
        //await UniTask.Delay(TimeSpan.FromSeconds(1f)) ;
        await waitAll;
        Debug.Log("Complete");
    }

    private void InitDotween() {
        cube.DOScale(new Vector3(2, 2, 2), 5f).SetEase(Ease.InOutQuart);
        cube.DORotate(new Vector3(90, 90, 90), 2f).SetEase(Ease.InOutQuart);
        cube.DOMove(new Vector3(5, 0, 5), 2f).SetEase(Ease.InOutQuart);
    }
    
    private void cancel() { 
        cts.Cancel();
    }
}