[游戏开发]Unity 使用Unirx和携程两种方案实现场景异步加载

Unity 使用Unirx和携程两种方案实现场景异步加载

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UniRx;

public class LoadScene : MonoBehaviour
{
    public UIProgressBar uiProgressBar;
    public UILabel uiLabel;
    private float tarValue;
    private float currValue = 0f;

    private void Start()
    {
        //LoadAsyncScene();
        StartCoroutine(LoadAsyncSceneIEnumerator());
    }

    private void LoadAsyncScene()
    {
        var progressObservable = new ScheduledNotifier<float>();
        var loadSceneAsync = UnityEngine.SceneManagement.SceneManager.LoadSceneAsync("GameScene");
        loadSceneAsync.allowSceneActivation = false;

        loadSceneAsync.AsAsyncOperationObservable(progressObservable)
        .Subscribe(operation =>
        {
            Debug.Log("场景加载完毕");
        });
        progressObservable.Subscribe(progress =>
        {
            tarValue = progress*100f;
        });

        Observable.EveryUpdate().Subscribe(_ =>
        {
            if (currValue < tarValue)
            {
                currValue++;
                uiProgressBar.value = currValue / 100f;
                uiLabel.text = $"当前加载进度:{currValue}%";
                return;
            }

            if (currValue >= 90f)
            {
                currValue++;
                uiProgressBar.value = currValue / 100f;
                uiLabel.text = $"当前加载进度:{currValue}%";
                if (currValue >= 100f)
                    loadSceneAsync.allowSceneActivation = true;
            }
        });
    }

    private IEnumerator LoadAsyncSceneIEnumerator()
    {
        var loadSceneAsync = UnityEngine.SceneManagement.SceneManager.LoadSceneAsync("GameScene");
        loadSceneAsync.allowSceneActivation = false;
        while (loadSceneAsync.progress<0.9f)
        {
            tarValue = loadSceneAsync.progress * 100f;

            while (currValue<tarValue)
            {
                currValue++;
                uiProgressBar.value = currValue / 100f;
                uiLabel.text = $"当前加载进度:{currValue}%";
                yield return null;
            }

            yield return null;
        }

        tarValue = 100f;
        while (currValue<tarValue)
        {
            currValue++;
            uiProgressBar.value = currValue / 100f;
            uiLabel.text = $"当前加载进度:{currValue}%";
            yield return null;
        }

        loadSceneAsync.allowSceneActivation = true;
    }
}