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Unity3D多场景管理框架设计

news 来源：原创 2025/5/30 6:01:38

前言

我将设计一个Unity3D游戏客户端框架的多场景管理系统，包含场景加载、进度显示和过渡动画等功能。

设计思路

场景管理核心：单例管理器处理场景加载/卸载
加载界面：显示进度条、提示信息和加载动画
场景切换过渡：平滑的淡入淡出效果
多场景支持：支持叠加加载和单独加载
错误处理：场景加载失败提示

对惹，这里有一个游戏开发交流小组，希望大家可以点击进来一起交流一下开发经验呀！

完整实现代码

using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;public class SceneTransitionManager : MonoBehaviour
{public static SceneTransitionManager Instance { get; private set; }[Header("UI References")]public CanvasGroup loadingScreen;public Slider progressBar;public Text progressText;public Text tipText;public Image loadingIcon;[Header("Settings")]public float fadeDuration = 0.5f;public float minLoadTime = 1.5f;public List<string> loadingTips = new List<string>{"小提示：探索场景可以找到隐藏道具","小提示：按ESC键可以打开设置菜单","小提示：完成每日任务可获得额外奖励"};private AsyncOperation currentAsyncOperation;private bool isLoading;private void Awake(){if (Instance == null){Instance = this;DontDestroyOnLoad(gameObject);}else{Destroy(gameObject);}}// 加载单个场景（替换当前场景）public void LoadScene(string sceneName){if (isLoading) return;StartCoroutine(LoadSceneCoroutine(sceneName, LoadSceneMode.Single));}// 叠加加载场景（不卸载当前场景）public void LoadSceneAdditive(string sceneName){if (isLoading) return;StartCoroutine(LoadSceneCoroutine(sceneName, LoadSceneMode.Additive));}// 卸载指定场景public void UnloadScene(string sceneName){StartCoroutine(UnloadSceneCoroutine(sceneName));}private IEnumerator LoadSceneCoroutine(string sceneName, LoadSceneMode mode){isLoading = true;// 显示随机提示tipText.text = loadingTips[Random.Range(0, loadingTips.Count)];// 淡入加载界面yield return StartCoroutine(FadeLoadingScreen(0, 1, fadeDuration));float timer = 0f;progressBar.value = 0;progressText.text = "0%";// 开始异步加载场景currentAsyncOperation = SceneManager.LoadSceneAsync(sceneName, mode);currentAsyncOperation.allowSceneActivation = false;// 旋转加载图标StartCoroutine(RotateLoadingIcon());while (!currentAsyncOperation.isDone){timer += Time.deltaTime;// 计算加载进度（0-0.9）float loadProgress = Mathf.Clamp01(currentAsyncOperation.progress / 0.9f);float percent = Mathf.Clamp01((timer / minLoadTime) * loadProgress);progressBar.value = percent;progressText.text = Mathf.Round(percent * 100) + "%";// 加载完成但等待最小加载时间if (currentAsyncOperation.progress >= 0.9f && timer >= minLoadTime){progressBar.value = 1;progressText.text = "100%";currentAsyncOperation.allowSceneActivation = true;}yield return null;}// 淡出加载界面yield return StartCoroutine(FadeLoadingScreen(1, 0, fadeDuration));isLoading = false;}private IEnumerator UnloadSceneCoroutine(string sceneName){AsyncOperation unloadOperation = SceneManager.UnloadSceneAsync(sceneName);while (!unloadOperation.isDone){yield return null;}}private IEnumerator FadeLoadingScreen(float startAlpha, float endAlpha, float duration){float time = 0;loadingScreen.blocksRaycasts = true;loadingScreen.interactable = true;while (time < duration){loadingScreen.alpha = Mathf.Lerp(startAlpha, endAlpha, time / duration);time += Time.deltaTime;yield return null;}loadingScreen.alpha = endAlpha;if (endAlpha == 0){loadingScreen.blocksRaycasts = false;loadingScreen.interactable = false;}}private IEnumerator RotateLoadingIcon(){while (isLoading){loadingIcon.transform.Rotate(0, 0, -180 * Time.deltaTime);yield return null;}}
}