111 lines
4.9 KiB
C#
111 lines
4.9 KiB
C#
using System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.EventSystems;
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using TMPro;
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using BaseGames.Core.Events;
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using BaseGames.Localization;
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namespace BaseGames.UI.MainMenu
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{
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/// <summary>
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/// 新游戏模式（难度）选择面板，<b>数据驱动</b>：据 <see cref="NewGameModeConfigSO"/> 生成难度按钮，
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/// 经 <see cref="IUINavigator"/> 模态压栈，返回 <see cref="DifficultyLevel"/>；
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/// 点返回 / 按 ESC 取消则返回 null（由 <see cref="UIResultPanel{T}"/> 兜底）。
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/// 选中某项时在共享说明区显示其 descKey（手柄/鼠标导航通用）。
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/// 策划改 UI_NewGameModeConfig 即可增删/重排难度、改标签/说明；样式改 UI_NewGameModePanel / UI_MainMenu_Button 预制件。
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/// </summary>
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public class NewGameModeController : UIResultPanel<DifficultyLevel?>
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{
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[Header("数据表 / 选项列表")]
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[SerializeField] private NewGameModeConfigSO _config;
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[Tooltip("难度按钮的父节点（通常挂 VerticalLayoutGroup）。")]
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[SerializeField] private Transform _container;
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[SerializeField] private MainMenuButtonView _buttonPrefab;
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[Header("引用")]
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[SerializeField] private LocalizedText _titleText;
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[Tooltip("当前选中难度的说明文本（随选中项切换）。")]
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[SerializeField] private TMP_Text _descText;
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[SerializeField] private Button _btnBack;
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// 取消 / ESC / 返回默认结果：未选择。
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protected override DifficultyLevel? CancelResult => null;
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private readonly List<(MainMenuButtonView view, string descKey)> _options = new();
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private MainMenuButtonView _firstButton;
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private GameObject _lastSelected;
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private void Awake() => _btnBack?.onClick.AddListener(() => Complete(null));
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protected override void OnPanelOpen() => BuildMenu();
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/// <summary>默认焦点：第一项（通常普通难度），避免误选高难项。</summary>
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protected override GameObject ResolveFirstSelected()
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=> _firstButton != null ? _firstButton.Button.gameObject
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: _btnBack != null ? _btnBack.gameObject : null;
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/// <summary>据配置重建难度按钮（public 以便编辑器预览/测试）。</summary>
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public void BuildMenu()
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{
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ClearMenu();
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if (_titleText != null && _config != null) _titleText.SetKey(_config.TitleKey);
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if (_config == null || _container == null || _buttonPrefab == null) return;
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foreach (var item in _config.Items)
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{
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var view = Instantiate(_buttonPrefab, _container);
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view.gameObject.SetActive(true);
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var level = item.level;
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view.Bind(item.labelKey, item.icon, () => Complete(level));
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_options.Add((view, item.descKey));
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if (_firstButton == null) _firstButton = view;
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}
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if (_descText != null) _descText.text = string.Empty;
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_lastSelected = null;
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}
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private void ClearMenu()
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{
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_options.Clear();
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_firstButton = null;
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if (_container == null) return;
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for (int i = _container.childCount - 1; i >= 0; i--)
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{
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var c = _container.GetChild(i).gameObject;
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if (Application.isPlaying) Destroy(c); else DestroyImmediate(c);
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}
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}
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// 显示当前选中难度的说明（轮询 EventSystem 选中项；手柄/鼠标导航通用，按钮无需额外组件）。
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private void Update()
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{
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if (_descText == null || EventSystem.current == null) return;
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var sel = EventSystem.current.currentSelectedGameObject;
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if (sel == _lastSelected) return;
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_lastSelected = sel;
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string descKey = null;
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foreach (var (view, dk) in _options)
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if (view != null && view.Button != null && view.Button.gameObject == sel) { descKey = dk; break; }
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_descText.text = string.IsNullOrEmpty(descKey)
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? string.Empty
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: LocalizationManager.Get(descKey, LocalizationTable.UI);
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}
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/// <summary>弹出难度选择并等待结果（DifficultyLevel / null=取消）。由导航器压栈管理。</summary>
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public Task<DifficultyLevel?> ShowAsync(CancellationToken ct = default)
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{
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var nav = GetService<IUINavigator>();
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if (nav == null)
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{
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Debug.LogError("[NewGameMode] 未找到 IUINavigator 服务，无法弹出模式选择。", this);
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return Task.FromResult<DifficultyLevel?>(null);
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}
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return nav.PushForResultAsync<DifficultyLevel?>(this, ct);
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}
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}
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}
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