ItemTypes.h

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#pragma once
 
// 背包模块的核心数据结构：物品定义、运行时堆叠、变更事件。
// 全部 key 使用字符串，便于 JSON 配置与跨版本兼容。
 
#include <string>
#include <unordered_map>
#include <vector>
 
namespace eve::inventory {
 
struct ItemDefinition {
    std::string id;
    std::string displayName;
    int maxStack = 1;
    float weight = 0.f;
    float volume = 0.f;
    std::vector<std::string> tags;
    std::string category;
    std::string equipSlot;
    std::unordered_map<std::string, std::string> extra;
 
    bool hasTag(const std::string &tag) const;
    std::string getExtra(const std::string &key, const std::string &fallback = {}) const;
};
 
struct ItemStack {
    int instanceId = 0;
    std::string itemId;
    int quantity = 0;
    float durability = -1.f;  
    std::unordered_map<std::string, std::string> props;
    std::vector<std::string> tags;
 
    bool empty() const { return itemId.empty() || quantity <= 0; }
    void clear();
    bool hasTag(const std::string &tag) const;
    std::string getProp(const std::string &key, const std::string &fallback = {}) const;
    void setProp(const std::string &key, const std::string &value);
};
 
struct InventoryChangeEvent {
    std::string action;  
    std::string bagId;
    std::string otherBagId;
    std::string itemId;
    int quantity = 0;
    int slot = -1;
    int otherSlot = -1;
    std::string equipSlot;
};
 
}  // namespace eve::inventory