55 lines
1.7 KiB
C#
55 lines
1.7 KiB
C#
using System.Collections;
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using UnityEngine;
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using UnityEngine.SceneManagement;
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/// <summary>
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/// Main 启动页。
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/// 点击事件在 Button 的 On Click() 里接线（Inspector 配置），代码里不查找节点。
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/// </summary>
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public class MainMenu : MonoBehaviour
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{
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[Tooltip("点「启动」后要加载的场景名，必须已经加进 Build Settings")]
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[SerializeField] private string startSceneName = "Start";
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private bool _loading;
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/// <summary>启动：加载目标场景，加载完成后卸载 Main 场景自己。</summary>
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public void OnStartClicked()
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{
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if (_loading) return; // 防连点，避免同时加载出两份
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_loading = true;
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StartCoroutine(LoadThenUnloadSelf());
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}
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/// <summary>退出游戏。</summary>
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public void OnExitClicked()
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{
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Application.Quit();
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#if UNITY_EDITOR
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// 编辑器里 Application.Quit 不生效，方便本地测试
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UnityEditor.EditorApplication.isPlaying = false;
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#endif
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}
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private IEnumerator LoadThenUnloadSelf()
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{
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Scene mainScene = gameObject.scene;
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AsyncOperation load = SceneManager.LoadSceneAsync(startSceneName, LoadSceneMode.Additive);
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if (load == null)
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{
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Debug.LogError("[MainMenu] 场景 \"" + startSceneName + "\" 加载失败，确认它已加入 Build Settings。", this);
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_loading = false;
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yield break;
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}
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yield return load; // 等目标场景加载完成
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Scene loaded = SceneManager.GetSceneByName(startSceneName);
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if (loaded.IsValid())
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SceneManager.SetActiveScene(loaded);
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SceneManager.UnloadSceneAsync(mainScene); // 加载完成后卸载 Main
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}
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}
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