U3D5.6 异步加载游戏场景

最新推荐文章于 2025-11-08 02:32:19 发布

原创最新推荐文章于 2025-11-08 02:32:19 发布 · 340 阅读

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本文介绍如何在Unity中使用MonoBehaviour组件实现游戏场景的过渡加载，并通过UI展示加载进度。详细展示了使用SceneManager加载场景的方法，以及如何通过协程控制异步加载过程，确保加载进度的准确显示。

一、把过度场景加载出来

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class onClick : MonoBehaviour {

	// Use this for initialization
	void Start () {
        this.GetComponent<Button>().onClick.AddListener(delegate()
        {
            Debug.Log("cllick");
            SceneManager.LoadScene("loadScene");
        });
	}
	
	// Update is called once per frame
	void Update () {
		
	}
}

二、使用协程判断游戏场景是否加载完成

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
/// <summary>
/// 异步加载脚本
/// </summary>
public class AsyncLoadScene : MonoBehaviour
{
    public Slider loadingSlider;
    public Text loadText;

    private AsyncOperation operation;

    private int displayProgress;
    private int toProgress;

    void Start()
    {
        loadingSlider.value = 0;
        loadingSlider.maxValue = 100;

        if (SceneManager.GetActiveScene().name == "loadScene")
        {
            //启动协程  
            StartCoroutine(AsyncLoading());
        }
    }
    void Update()
    {
        Debug.Log(operation.progress);
        if (loadingSlider.value < 99)
        {
            loadingSlider.value++;
            loadText.text = "" + loadingSlider.value;
        }
        else if (operation.progress == 0.9f)
        {
            loadingSlider.value = 100;
            loadText.text = loadingSlider.value + "%";
            
            operation.allowSceneActivation = true;
        }
    }
    private IEnumerator AsyncLoading()
    {
        operation = SceneManager.LoadSceneAsync("gameScene");
        operation.allowSceneActivation = false;
        yield return operation;
    }
    private void SetLoadingPercentage(int Percentage)
    {
        loadingSlider.value = Percentage;
    }
}

当operation.allowSceneActivation为false时，operation.progress会等于0.9f直到allowSceneActivation为true再进行0.9-1的加载