424 lines
16 KiB
C#
424 lines
16 KiB
C#
using System.Collections.Generic;
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using Cielonos.MainGame.Map;
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using SLSUtilities.UI;
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using UnityEngine;
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using UnityEngine.UI.Extensions;
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namespace Cielonos.MainGame.UI
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{
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/// <summary>
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/// 地图 UI 页面。根据 RunMapData 动态生成节点和连接线元素。
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/// 监听 RunManager 阶段变化，自动在 MapSelection 阶段打开/刷新，其他阶段关闭。
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/// 节点点击后调用 RunManager.SelectNode 执行传送。
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/// 支持通过 MapPanZoom 组件进行拖拽平移和滚轮缩放。
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/// </summary>
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public class MapUIPage : UIPageBase
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{
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// ================================================================
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// 常量
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// ================================================================
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private const float CONNECTION_LINE_THICKNESS = 3f;
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private static readonly Color CONNECTION_LINE_COLOR = new Color(0.5f, 0.5f, 0.5f, 0.8f);
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// ================================================================
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// 序列化字段
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// ================================================================
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[Header("Containers")]
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public RectTransform mapContainer;
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[SerializeField] private RectTransform nodeContainer;
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[SerializeField] private RectTransform connectionContainer;
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[Header("Prefabs")]
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[SerializeField] private GameObject nodePrefab;
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[Header("Pan & Zoom")]
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[SerializeField] private MapPanZoom panZoom;
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// ================================================================
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// 运行时状态
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// ================================================================
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/// <summary>已生成的节点元素，按网格坐标索引。</summary>
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private readonly Dictionary<Vector2Int, MapNodeElement> _nodeElements =
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new Dictionary<Vector2Int, MapNodeElement>();
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/// <summary>已生成的连接线 GameObject 列表。</summary>
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private readonly List<GameObject> _connectionObjects = new List<GameObject>();
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/// <summary>当前绑定的地图数据。</summary>
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private RunMapData _mapData;
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// ================================================================
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// 生命周期
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// ================================================================
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protected override void Start()
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{
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base.Start();
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// 订阅 RunManager 阶段切换事件，自动控制地图页面的开关
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if (RunManager.Instance != null)
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{
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RunManager.Instance.OnPhaseChanged += OnRunPhaseChanged;
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}
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else
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{
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Debug.LogWarning("[MapUIPage] RunManager.Instance 不存在，无法自动切换地图页面。");
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}
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}
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private void OnDestroy()
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{
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// 取消订阅，防止 RunManager 被先销毁时的空引用
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if (RunManager.Instance != null)
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{
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RunManager.Instance.OnPhaseChanged -= OnRunPhaseChanged;
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}
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}
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// ================================================================
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// 阶段切换响应
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// ================================================================
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/// <summary>
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/// RunManager 阶段切换回调。
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/// 离开 MapSelection 阶段时自动关闭地图；打开由玩家手动操作（地图按钮）。
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/// </summary>
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private void OnRunPhaseChanged(RunPhase phase)
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{
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if (phase != RunPhase.MapSelection && IsOpen)
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{
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Close();
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}
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}
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/// <summary>
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/// 页面打开时自动刷新节点显示状态并居中到当前节点。
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/// </summary>
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protected override void OnPageOpened()
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{
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base.OnPageOpened();
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if (RunManager.Instance != null && RunManager.Instance.currentRun != null)
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{
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RefreshDisplayStates(RunManager.Instance.currentRun);
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CenterOnCurrentNode();
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}
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}
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// ================================================================
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// 公共 API
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// ================================================================
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/// <summary>
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/// 根据 RunMapData 生成所有地图 UI 元素（节点 + 连接线）。
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/// 若之前已生成则先清除。生成完成后自动应用初始显示状态。
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/// </summary>
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/// <param name="mapData">要显示的地图数据。</param>
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public void Populate(RunMapData mapData)
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{
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if (mapData == null)
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{
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Debug.LogWarning("[MapUIPage] 传入的 RunMapData 为 null，无法生成地图。");
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return;
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}
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_mapData = mapData;
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ClearAll();
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CreateNodes(mapData);
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CreateConnections(mapData);
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// 生成完成后立即应用初始显示状态（避免短暂显示原始外观）
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if (RunManager.Instance != null && RunManager.Instance.currentRun != null)
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{
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RefreshDisplayStates(RunManager.Instance.currentRun);
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}
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}
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/// <summary>
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/// 根据 RunState 更新所有节点的显示状态（迷雾、交互、使用状态、边框颜色）。
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/// </summary>
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/// <param name="state">当前 Run 的状态。</param>
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public void RefreshDisplayStates(RunState state)
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{
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Dictionary<Vector2Int, NodeDisplayState> displayStates = MapFogCalculator.Calculate(state);
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foreach (KeyValuePair<Vector2Int, NodeDisplayState> kvp in displayStates)
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{
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if (_nodeElements.TryGetValue(kvp.Key, out MapNodeElement element))
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{
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element.ApplyDisplayState(kvp.Value);
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}
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}
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// 更新连接线的可见性（所有连接线始终可见，因为所有节点至少显示为 Silhouette）
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RefreshConnectionVisibility(displayStates);
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}
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// ================================================================
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// 节点点击处理
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// ================================================================
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/// <summary>
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/// 节点被玩家点击后的回调。调用 RunManager.SelectNode 执行传送逻辑。
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/// RunManager 内部会验证可达性并处理阶段切换和场景加载。
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/// </summary>
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/// <param name="gridPosition">被点击节点的网格坐标。</param>
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private void OnNodeClicked(Vector2Int gridPosition)
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{
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if (RunManager.Instance == null)
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{
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Debug.LogWarning("[MapUIPage] RunManager 不存在，无法处理节点点击。");
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return;
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}
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Debug.Log($"[MapUIPage] 玩家点击节点 {gridPosition}，请求传送。");
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RunManager.Instance.SelectNode(gridPosition);
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}
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// ================================================================
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// 视角控制
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// ================================================================
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/// <summary>
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/// 将地图视角居中到玩家当前所在节点的 UI 位置。
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/// </summary>
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private void CenterOnCurrentNode()
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{
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if (panZoom == null || _mapData == null) return;
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if (RunManager.Instance == null || RunManager.Instance.currentRun == null) return;
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Vector2Int currentPos = RunManager.Instance.currentRun.currentPosition;
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if (_mapData.nodes.TryGetValue(currentPos, out RunMapNode node))
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{
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panZoom.CenterOn(node.position);
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}
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}
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// ================================================================
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// 节点生成
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// ================================================================
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/// <summary>
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/// 为每个 RunMapNode 实例化一个节点 UI 元素，并绑定点击事件。
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/// </summary>
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private void CreateNodes(RunMapData mapData)
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{
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if (nodePrefab == null)
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{
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Debug.LogError("[MapUIPage] nodePrefab 未赋值，无法生成节点。");
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return;
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}
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Transform parent = nodeContainer != null ? nodeContainer : mapContainer;
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foreach (KeyValuePair<Vector2Int, RunMapNode> kvp in mapData.nodes)
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{
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RunMapNode node = kvp.Value;
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GameObject nodeGo = Instantiate(nodePrefab, parent);
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nodeGo.name = $"Node_{node.gridPosition.x}_{node.gridPosition.y}";
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MapNodeElement element = nodeGo.GetComponent<MapNodeElement>();
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if (element == null)
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{
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Debug.LogWarning($"[MapUIPage] nodePrefab 缺少 MapNodeElement 组件，跳过节点 {node.gridPosition}。");
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Destroy(nodeGo);
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continue;
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}
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element.Setup(node);
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// 绑定点击事件 → OnNodeClicked → RunManager.SelectNode
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element.OnClicked += OnNodeClicked;
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_nodeElements[kvp.Key] = element;
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}
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}
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// ================================================================
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// 连接线生成
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// ================================================================
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/// <summary>
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/// 为所有节点之间的连接创建 UILineRenderer。
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/// 使用 HashSet 去重，确保双向连接只生成一条线。
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/// </summary>
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private void CreateConnections(RunMapData mapData)
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{
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Transform parent = connectionContainer != null ? connectionContainer : mapContainer;
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HashSet<long> processedEdges = new HashSet<long>();
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foreach (KeyValuePair<Vector2Int, RunMapNode> kvp in mapData.nodes)
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{
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Vector2Int fromPos = kvp.Key;
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RunMapNode fromNode = kvp.Value;
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foreach (Vector2Int toPos in fromNode.connectedPositions)
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{
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// 使用排序后的 hash 去重双向边
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long edgeKey = GetEdgeKey(fromPos, toPos);
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if (!processedEdges.Add(edgeKey)) continue;
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// 确保目标节点存在
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if (!mapData.nodes.TryGetValue(toPos, out RunMapNode toNode)) continue;
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CreateConnectionLine(parent, fromNode.position, toNode.position, fromPos, toPos);
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}
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}
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}
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/// <summary>
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/// 创建一条从 startPos 到 endPos 的 UILineRenderer 连接线。
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/// </summary>
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private void CreateConnectionLine(Transform parent, Vector2 startUIPos, Vector2 endUIPos,
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Vector2Int fromGrid, Vector2Int toGrid)
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{
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GameObject lineGo = new GameObject($"Connection_{fromGrid.x},{fromGrid.y}_to_{toGrid.x},{toGrid.y}");
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lineGo.transform.SetParent(parent, false);
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RectTransform rt = lineGo.AddComponent<RectTransform>();
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// 锚定到容器中心，不拉伸
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rt.anchorMin = new Vector2(0.5f, 0.5f);
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rt.anchorMax = new Vector2(0.5f, 0.5f);
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rt.pivot = new Vector2(0.5f, 0.5f);
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rt.anchoredPosition = Vector2.zero;
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rt.sizeDelta = mapContainer != null ? mapContainer.sizeDelta : new Vector2(1200f, 675f);
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UILineRenderer lineRenderer = lineGo.AddComponent<UILineRenderer>();
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lineRenderer.LineThickness = CONNECTION_LINE_THICKNESS;
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lineRenderer.color = CONNECTION_LINE_COLOR;
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lineRenderer.raycastTarget = false;
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// UILineRenderer 使用相对于自身 RectTransform 的坐标
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// 由于 RectTransform 的 pivot 在 (0.5, 0.5)，节点的 position 是相对于 mapContainer 中心的坐标
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lineRenderer.Points = new Vector2[] { startUIPos, endUIPos };
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_connectionObjects.Add(lineGo);
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}
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/// <summary>
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/// 生成一条边的唯一标识 key（与方向无关）。
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/// </summary>
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private static long GetEdgeKey(Vector2Int a, Vector2Int b)
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{
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// 确保小的坐标在前，保证 (a→b) 和 (b→a) 生成相同的 key
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Vector2Int min, max;
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if (a.x < b.x || (a.x == b.x && a.y < b.y))
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{
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min = a;
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max = b;
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}
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else
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{
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min = b;
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max = a;
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}
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// 将两个 Vector2Int 打包为 long
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// 每个坐标分量占 16 位，总共 64 位
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return ((long)(min.x + 32768) << 48)
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| ((long)(min.y + 32768) << 32)
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| ((long)(max.x + 32768) << 16)
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| (long)(max.y + 32768);
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}
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// ================================================================
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// 连接线可见性
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// ================================================================
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/// <summary>
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/// 根据节点的显示状态更新连接线的可见性。
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/// 两端节点都隐藏时，连接线也隐藏。
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/// </summary>
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private void RefreshConnectionVisibility(Dictionary<Vector2Int, NodeDisplayState> displayStates)
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{
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foreach (GameObject connectionGo in _connectionObjects)
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{
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if (connectionGo == null) continue;
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// 从命名中解析连接的两个节点坐标
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if (!TryParseConnectionName(connectionGo.name, out Vector2Int fromPos, out Vector2Int toPos))
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continue;
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bool fromVisible = displayStates.TryGetValue(fromPos, out NodeDisplayState fromState)
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&& fromState.visibility != MapNodeVisibility.Hidden;
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bool toVisible = displayStates.TryGetValue(toPos, out NodeDisplayState toState)
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&& toState.visibility != MapNodeVisibility.Hidden;
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connectionGo.SetActive(fromVisible || toVisible);
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}
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}
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/// <summary>
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/// 从连接线 GameObject 名称中解析两端节点坐标。
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/// 命名格式：Connection_{x1},{y1}_to_{x2},{y2}
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/// </summary>
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private static bool TryParseConnectionName(string name, out Vector2Int from, out Vector2Int to)
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{
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from = Vector2Int.zero;
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to = Vector2Int.zero;
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// Connection_{x1},{y1}_to_{x2},{y2}
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if (!name.StartsWith("Connection_")) return false;
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string body = name.Substring("Connection_".Length);
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string[] parts = body.Split(new[] { "_to_" }, System.StringSplitOptions.None);
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if (parts.Length != 2) return false;
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return TryParseCoord(parts[0], out from) && TryParseCoord(parts[1], out to);
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}
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private static bool TryParseCoord(string s, out Vector2Int result)
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{
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result = Vector2Int.zero;
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string[] components = s.Split(',');
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if (components.Length != 2) return false;
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if (!int.TryParse(components[0], out int x)) return false;
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if (!int.TryParse(components[1], out int y)) return false;
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result = new Vector2Int(x, y);
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return true;
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}
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// ================================================================
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// 清理
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// ================================================================
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/// <summary>
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/// 清除所有已生成的节点和连接线。
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/// </summary>
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private void ClearAll()
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{
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ClearNodes();
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ClearConnections();
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}
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private void ClearNodes()
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{
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foreach (KeyValuePair<Vector2Int, MapNodeElement> kvp in _nodeElements)
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{
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if (kvp.Value != null)
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{
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// 取消订阅点击事件，防止内存泄漏
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kvp.Value.OnClicked -= OnNodeClicked;
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Destroy(kvp.Value.gameObject);
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}
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}
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_nodeElements.Clear();
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}
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private void ClearConnections()
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{
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foreach (GameObject go in _connectionObjects)
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{
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if (go != null) Destroy(go);
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}
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_connectionObjects.Clear();
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}
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}
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}
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