多轮审查和修复
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179
Assets/Scripts/World/Shop/ShopController.cs
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179
Assets/Scripts/World/Shop/ShopController.cs
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using System.Collections.Generic;
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using System.Linq;
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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.World.Shop
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{
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/// <summary>
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/// 商店流程控制器（架构 15_MapShopModule §2.3）。
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/// 管理库存可见性、购买逻辑、补货策略，并通过 ISaveable 持久化购买记录。
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/// </summary>
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public class ShopController : MonoBehaviour, ISaveable
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{
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[SerializeField] private ShopInventorySO _inventory;
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[SerializeField] private ShopPanel _shopPanel; // UI 面板（P4 UI 模块实现）
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[Header("Event Channels（广播）")]
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[SerializeField] private StringEventChannelSO _onShopOpen; // EVT_ShopOpened（shopId）
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[SerializeField] private VoidEventChannelSO _onShopClosed; // EVT_ShopClosed
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[SerializeField] private ShopPurchaseEventChannelSO _onItemPurchased; // EVT_ItemPurchased
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[Header("Event Channels（订阅补货触发）")]
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[SerializeField] private StringEventChannelSO _onBossDefeated; // EVT_BossDefeated
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[SerializeField] private VoidEventChannelSO _onSavePointActivated; // EVT_SavePointActivated
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// key = itemId，value = 已购次数
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private Dictionary<string, int> _purchaseCounts = new();
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private HashSet<string> _soldUniqueItems = new();
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private List<ShopItemSO> _availableItemsCache;
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private bool _isDirty = true;
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private readonly CompositeDisposable _subs = new();
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private void OnEnable()
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{
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if (_inventory == null) return;
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if (_inventory.RestockPolicy == RestockPolicy.OnBossDefeat)
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_onBossDefeated?.Subscribe(OnBossDefeated).AddTo(_subs);
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if (_inventory.RestockPolicy == RestockPolicy.OnSavePoint)
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_onSavePointActivated?.Subscribe(OnSavePointActivated).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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_subs.Clear();
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ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Unregister(this);
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}
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private void OnBossDefeated(string _) => Restock();
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private void OnSavePointActivated() => Restock();
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// ── 公共 API ──────────────────────────────────────────────────────────
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public void Open()
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{
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_shopPanel?.Show(GetAvailableItems(), this);
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_onShopOpen?.Raise(_inventory.ShopId);
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}
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public void Close()
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{
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_shopPanel?.Hide();
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_onShopClosed?.Raise();
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}
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/// <summary>返回当前可购买的商品列表（过滤已售唯一品及超限商品）。结果在库存变更时才重建。</summary>
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public List<ShopItemSO> GetAvailableItems()
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{
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if (!_isDirty) return _availableItemsCache;
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if (_inventory?.DefaultInventory == null)
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{
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_availableItemsCache = new List<ShopItemSO>();
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_isDirty = false;
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return _availableItemsCache;
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}
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_availableItemsCache = _inventory.DefaultInventory
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.Take(_inventory.MaxDisplaySlots)
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.Where(item => item != null
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&& !_soldUniqueItems.Contains(item.ItemId)
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&& (item.MaxPurchaseCount < 0 || GetPurchaseCount(item.ItemId) < item.MaxPurchaseCount))
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.ToList();
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_isDirty = false;
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return _availableItemsCache;
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}
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/// <summary>
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/// 按 RestockPolicy 补货：重置非唯一商品的购买次数（已售唯一品不恢复）。
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/// </summary>
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public void Restock()
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{
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if (_inventory?.DefaultInventory == null) return;
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var nonUniqueIds = _inventory.DefaultInventory
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.Where(i => i != null && !i.IsUnique)
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.Select(i => i.ItemId);
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foreach (var id in nonUniqueIds)
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_purchaseCounts.Remove(id);
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_isDirty = true;
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}
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/// <summary>
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/// 尝试购买商品。由 ShopPanel 的购买按钮调用。
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/// </summary>
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/// <returns>购买成功返回 true；资金不足或商品不可购返回 false。</returns>
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public bool TryPurchase(ShopItemSO item, int playerGeo)
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{
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if (item == null) return false;
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int effectivePrice = GetEffectivePrice(item);
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if (playerGeo < effectivePrice) return false;
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if (_soldUniqueItems.Contains(item.ItemId)) return false;
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if (item.MaxPurchaseCount >= 0 && GetPurchaseCount(item.ItemId) >= item.MaxPurchaseCount)
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return false;
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// 通过事件频道扣 Geo（PlayerStats 监听 EVT_ItemPurchased）
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_onItemPurchased?.Raise(new ShopPurchaseEvent
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{
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ItemId = item.ItemId,
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Price = effectivePrice,
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});
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// 更新库存状态
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_purchaseCounts[item.ItemId] = GetPurchaseCount(item.ItemId) + 1;
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if (item.IsUnique) _soldUniqueItems.Add(item.ItemId);
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_isDirty = true;
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return true;
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}
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/// <summary>
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/// 返回应用难度乘数后的实际价格。UI 层可通过此方法显示正确标价。
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/// </summary>
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public int GetEffectivePrice(ShopItemSO item)
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{
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var scaler = ServiceLocator.GetOrDefault<IDifficultyService>()?.CurrentScaler;
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if (scaler == null) return item.BasePrice;
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return Mathf.Max(1, Mathf.RoundToInt(item.BasePrice * scaler.ShopPriceMultiplier));
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}
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private int GetPurchaseCount(string id)
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=> _purchaseCounts.TryGetValue(id, out var c) ? c : 0;
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// ── ISaveable ─────────────────────────────────────────────────────────
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public void OnSave(SaveData data)
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{
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if (_inventory == null) return;
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if (!data.Shops.ShopRecords.ContainsKey(_inventory.ShopId))
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data.Shops.ShopRecords[_inventory.ShopId] = new ShopRecord();
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var record = data.Shops.ShopRecords[_inventory.ShopId];
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record.SoldUniqueItems = _soldUniqueItems.ToList();
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record.PurchaseCounts = new Dictionary<string, int>(_purchaseCounts);
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}
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public void OnLoad(SaveData data)
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{
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if (_inventory == null) return;
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if (data.Shops.ShopRecords.TryGetValue(_inventory.ShopId, out var record))
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{
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_soldUniqueItems = new HashSet<string>(record.SoldUniqueItems ?? new List<string>());
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_purchaseCounts = record.PurchaseCounts ?? new Dictionary<string, int>();
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_isDirty = true;
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}
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}
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}
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// ─── ShopPanel ──────────────────────────────────────────────────────────
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/// <summary>
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/// 商店 UI 面板基类。
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/// ShopController 通过此接口调用面板显示/隐藏，已解耦具体 UI 实现。
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/// </summary>
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public class ShopPanel : MonoBehaviour
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{
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public virtual void Show(List<ShopItemSO> items, ShopController controller) { }
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public virtual void Hide() { }
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}
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}
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