地图系统
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209
Assets/_Game/Scripts/Inventory/InventoryManager.cs
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209
Assets/_Game/Scripts/Inventory/InventoryManager.cs
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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using BaseGames.Core;
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using BaseGames.Core.Events;
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using BaseGames.Core.Save;
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namespace BaseGames.Inventory
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{
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/// <summary>
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/// 运行时背包管理器。
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/// 挂在 Persistent 场景 [Services] 下，事件驱动记录玩家持有的道具，
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/// 实现 <see cref="ISaveable"/> 持久化。设计对照 <see cref="BaseGames.World.Map.MapManager"/>
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/// 与 <see cref="BaseGames.Equipment.EquipmentManager"/> 的服务注册 / 存档模式。
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/// </summary>
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[DefaultExecutionOrder(-700)]
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public class InventoryManager : MonoBehaviour, ISaveable, IInventoryService
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{
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[SerializeField] private ItemDatabaseSO _database;
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[Header("Event Channels - Listen")]
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[Tooltip("道具拾取（itemId）。Collectible 拾取 Item 类型时广播 EVT_ItemPickup。")]
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[SerializeField] private StringEventChannelSO _onItemPickup;
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[Header("Event Channels - Raise")]
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[Tooltip("道具首次获得时广播（itemId），供 HUD Toast / 地图碎片揭示等订阅。")]
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[SerializeField] private StringEventChannelSO _onItemAcquired;
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[Tooltip("背包内容变化时广播（无负载），供 UI 轻量刷新。")]
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[SerializeField] private VoidEventChannelSO _onInventoryChanged;
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[Tooltip("地图碎片道具获得时广播揭示区域（regionId）。对应 EVT_RevealRegion。")]
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[SerializeField] private StringEventChannelSO _onRevealRegion;
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private readonly Dictionary<string, int> _counts = new();
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private readonly HashSet<string> _newItems = new();
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private readonly List<InventoryEntry> _view = new();
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private bool _viewDirty = true;
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private bool _isDuplicate;
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private readonly CompositeDisposable _subs = new();
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public event Action OnInventoryChanged;
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// ── 生命周期 ──────────────────────────────────────────────────────────
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private void Awake()
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{
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if (ServiceLocator.GetOrDefault<IInventoryService>() != null) { _isDuplicate = true; Destroy(gameObject); return; }
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ServiceLocator.Register<IInventoryService>(this);
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Debug.Assert(_database != null, "[InventoryManager] _database 未赋值，请在 Inspector 中指定 ItemDatabaseSO。", this);
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}
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private void OnEnable()
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{
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if (_isDuplicate) return;
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_onItemPickup?.Subscribe(OnItemPickup).AddTo(_subs);
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ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Register(this);
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}
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private void OnDisable()
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{
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if (_isDuplicate) return;
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_subs.Clear();
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ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Unregister(this);
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}
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private void OnDestroy()
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{
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if (_isDuplicate) return;
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ServiceLocator.Unregister<IInventoryService>(this);
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}
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// ── 事件驱动拾取 ──────────────────────────────────────────────────────
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private void OnItemPickup(string itemId) => AddItem(itemId, 1);
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// ── IInventoryService ─────────────────────────────────────────────────
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public IReadOnlyList<InventoryEntry> Items
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{
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get { RebuildViewIfDirty(); return _view; }
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}
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public int DistinctCount => _counts.Count;
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public int GetCount(string itemId)
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=> !string.IsNullOrEmpty(itemId) && _counts.TryGetValue(itemId, out var c) ? c : 0;
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public bool Has(string itemId) => GetCount(itemId) > 0;
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public int AddItem(string itemId, int amount = 1)
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{
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if (string.IsNullOrEmpty(itemId) || amount <= 0) return 0;
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var item = _database != null ? _database.Find(itemId) : null;
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if (item == null) { Debug.LogWarning($"[InventoryManager] 找不到道具: {itemId}", this); return 0; }
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bool firstTime = !_counts.ContainsKey(itemId);
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int current = firstTime ? 0 : _counts[itemId];
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int target;
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if (!item.stackable)
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{
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if (current >= 1) return 0; // 非叠加道具已持有，忽略
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target = 1;
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}
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else
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{
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target = current + amount;
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if (item.maxStack > 0) target = Mathf.Min(target, item.maxStack);
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}
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int added = target - current;
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if (added <= 0) return 0;
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_counts[itemId] = target;
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_newItems.Add(itemId);
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_viewDirty = true;
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if (firstTime)
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{
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_onItemAcquired?.Raise(itemId);
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// 地图碎片：揭示对应区域
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if (item.category == ItemCategory.MapShard && !string.IsNullOrEmpty(item.revealRegionId))
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_onRevealRegion?.Raise(item.revealRegionId);
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}
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RaiseChanged();
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return added;
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}
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public int RemoveItem(string itemId, int amount = 1)
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{
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if (string.IsNullOrEmpty(itemId) || amount <= 0) return 0;
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if (!_counts.TryGetValue(itemId, out var current) || current <= 0) return 0;
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int removed = Mathf.Min(current, amount);
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int target = current - removed;
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if (target <= 0)
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{
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_counts.Remove(itemId);
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_newItems.Remove(itemId);
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}
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else
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{
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_counts[itemId] = target;
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}
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_viewDirty = true;
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RaiseChanged();
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return removed;
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}
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public void MarkSeen(string itemId)
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{
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if (string.IsNullOrEmpty(itemId)) return;
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if (_newItems.Remove(itemId))
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{
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_viewDirty = true;
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RaiseChanged();
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}
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}
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// ── 内部 ──────────────────────────────────────────────────────────────
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private void RaiseChanged()
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{
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_onInventoryChanged?.Raise();
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OnInventoryChanged?.Invoke();
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}
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private void RebuildViewIfDirty()
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{
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if (!_viewDirty) return;
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_view.Clear();
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foreach (var kv in _counts)
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{
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var item = _database != null ? _database.Find(kv.Key) : null;
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if (item == null) continue;
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_view.Add(new InventoryEntry(item, kv.Value, _newItems.Contains(kv.Key)));
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}
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// 按分类枚举顺序、再按本地化名/ID 稳定排序，供 UI 分组展示
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_view.Sort((a, b) =>
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{
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int c = a.Item.category.CompareTo(b.Item.category);
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return c != 0 ? c : string.CompareOrdinal(a.Item.itemId, b.Item.itemId);
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});
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_viewDirty = false;
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}
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// ── ISaveable ─────────────────────────────────────────────────────────
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public void OnSave(SaveData data)
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{
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data.Inventory.ItemCounts.Clear();
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foreach (var kv in _counts) data.Inventory.ItemCounts[kv.Key] = kv.Value;
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data.Inventory.NewItemIds.Clear();
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data.Inventory.NewItemIds.AddRange(_newItems);
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}
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public void OnLoad(SaveData data)
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{
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_counts.Clear();
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_newItems.Clear();
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if (data.Inventory?.ItemCounts != null)
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foreach (var kv in data.Inventory.ItemCounts)
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if (!string.IsNullOrEmpty(kv.Key) && kv.Value > 0)
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_counts[kv.Key] = kv.Value;
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if (data.Inventory?.NewItemIds != null)
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foreach (var id in data.Inventory.NewItemIds)
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if (_counts.ContainsKey(id)) _newItems.Add(id);
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_viewDirty = true;
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RaiseChanged();
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}
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}
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}
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