feat: 集成大模型AI、重构构建系统并修复多项代码质量问题

- 构建系统：Makefile 迁移至 CMakeLists.txt，支持 cJSON 和 WinHTTP - 项目结构：src/ 按功能拆分为 core/、gui/、network/、record/、llm/ 子目录 - 新功能：集成大模型 AI（WinHTTP + cJSON，兼容 OpenAI 协议），支持异步请求 - 渲染修复：IupDraw* 替换为 Windows GDI，修复画布黑屏问题 - 网络修复：ENet 初始化幂等化，实现真实 get_local_ip() (Winsock) - 代码质量：删除死代码 (dfs/count_threats_in_direction)，修复头文件守卫， sprintf→snprintf 防溢出，strncpy 安全终止，GDI 资源泄漏修复 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-28 16:35:55 +08:00 · 2026-05-02 15:32:54 +08:00
parent f897536a45
commit 96a94aaddf
25 changed files with 4631 additions and 363 deletions
@@ -35,6 +35,13 @@ dist/

 # 编译生成的对象文件
 obj/
+build/

 # 临时游戏存档
 records/
+
+# 运行时配置（含 API Key）
+bin/gobang_config.ini
+
+# 编译产物
+bin/gobang_gui.exe
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.16)
+project(Gobang VERSION 9.0 LANGUAGES C)
+
+set(CMAKE_C_STANDARD 17)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
+# === 输出目录：与原 Makefile 保持一致 ===
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
+
+# === 编译选项 ===
+add_compile_options(-Wall -Wextra -O2)
+add_compile_options(-finput-charset=UTF-8 -fexec-charset=UTF-8)
+
+# === ENet（从源码编译静态库）===
+set(ENET_DIR ${CMAKE_SOURCE_DIR}/libs/enet)
+add_library(enet STATIC
+    ${ENET_DIR}/callbacks.c
+    ${ENET_DIR}/compress.c
+    ${ENET_DIR}/host.c
+    ${ENET_DIR}/list.c
+    ${ENET_DIR}/packet.c
+    ${ENET_DIR}/peer.c
+    ${ENET_DIR}/protocol.c
+    ${ENET_DIR}/win32.c
+)
+target_include_directories(enet PUBLIC ${ENET_DIR}/include)
+
+# === IUP（预构建导入库）===
+set(IUP_DIR ${CMAKE_SOURCE_DIR}/libs/iup-3.31_Win64_dllw6_lib)
+add_library(iup SHARED IMPORTED)
+set_target_properties(iup PROPERTIES
+    IMPORTED_IMPLIB   ${IUP_DIR}/libiup.a
+    IMPORTED_LOCATION ${IUP_DIR}/iup.dll
+    INTERFACE_INCLUDE_DIRECTORIES ${IUP_DIR}/include
+)
+
+# === cJSON（JSON处理库）===
+add_library(cjson STATIC ${CMAKE_SOURCE_DIR}/libs/cJSON/cJSON.c)
+target_include_directories(cjson PUBLIC ${CMAKE_SOURCE_DIR}/libs/cJSON)
+
+# === 主可执行文件 ===
+add_executable(gobang_gui
+    src/core/main.c
+    src/core/globals.c
+    src/core/config.c
+    src/core/gobang.c
+    src/core/ai.c
+    src/network/network.c
+    src/record/record.c
+    src/gui/gui_core.c
+    src/gui/gui_game.c
+    src/gui/gui_menu.c
+    src/gui/gui_replay.c
+    src/llm/llm_ai.c
+)
+
+target_include_directories(gobang_gui PRIVATE ${CMAKE_SOURCE_DIR}/include)
+
+target_link_libraries(gobang_gui PRIVATE
+    enet
+    cjson
+    iup
+    winhttp
+    ws2_32
+    winmm
+    gdi32
+    comdlg32
+    comctl32
+    uuid
+    ole32
+)
+
+# === 构建后拷贝 iup.dll 到 bin/ ===
+add_custom_command(TARGET gobang_gui POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+        ${IUP_DIR}/iup.dll
+        $<TARGET_FILE_DIR:gobang_gui>
+    COMMENT "拷贝 iup.dll 到输出目录"
+)
+
+# === 快捷运行目标 ===
+add_custom_target(run
+    COMMAND gobang_gui
+    DEPENDS gobang_gui
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/bin
+    COMMENT "运行五子棋游戏"
+)
@@ -1,102 +0,0 @@
-# 五子棋游戏 Makefile
-# 支持编译GUI版本 (IUP)
-
-# 编译器设置
-CC = gcc
-# 显式指定 Shell 为 PowerShell
-SHELL = D:/PowerShell/PowerShell-7.5.4/PowerShell.exe
-.SHELLFLAGS = -NoProfile -Command
-
-CFLAGS = -Wall -Wextra -std=c17 -O2 -Iinclude -finput-charset=UTF-8 -fexec-charset=UTF-8
-# ENet 包含路径
-ENET_INC = -Ilibs/enet/include
-CFLAGS += $(ENET_INC)
-
-LDFLAGS = -lws2_32 -lwinmm
-
-
-# IUP路径设置
-IUP_PATH = libs/iup-3.31_Win64_dllw6_lib
-IUP_INCLUDE = "-I$(IUP_PATH)/include"
-# IUP链接库: iup, gdi32, comdlg32, comctl32, uuid, ole32
-IUP_LIBS = "-L$(IUP_PATH)" -liup -lgdi32 -lcomdlg32 -lcomctl32 -luuid -lole32
-
-# 目录设置
-SRC_DIR = src
-OBJ_DIR = obj
-BIN_DIR = bin
-
-# 源文件
-COMMON_SOURCES = $(SRC_DIR)/gobang.c $(SRC_DIR)/ai.c $(SRC_DIR)/config.c \
-                 $(SRC_DIR)/globals.c \
-                 $(SRC_DIR)/network.c $(SRC_DIR)/record.c \
-                 $(SRC_DIR)/gui_core.c $(SRC_DIR)/gui_draw.c \
-                 $(SRC_DIR)/gui_game.c $(SRC_DIR)/gui_replay.c \
-                 $(SRC_DIR)/gui_menu.c
-
-# ENet 源文件
-ENET_SOURCES = libs/enet/callbacks.c libs/enet/compress.c libs/enet/host.c \
-               libs/enet/list.c libs/enet/packet.c libs/enet/peer.c \
-               libs/enet/protocol.c libs/enet/win32.c
-
-# 目标文件 (src/xxx.c -> obj/xxx.o)
-COMMON_OBJECTS = $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR)/%.o,$(COMMON_SOURCES))
-ENET_OBJECTS = $(patsubst libs/enet/%.c,$(OBJ_DIR)/enet_%.o,$(ENET_SOURCES))
-
-# 可执行文件
-GUI_TARGET = $(BIN_DIR)/gobang_gui.exe
-
-# 默认目标
-all: directories $(GUI_TARGET)
-
-# 创建目录 (PowerShell 语法)
-directories:
-	if (!(Test-Path "$(OBJ_DIR)")) { New-Item -ItemType Directory -Path "$(OBJ_DIR)" | Out-Null }
-	if (!(Test-Path "$(BIN_DIR)")) { New-Item -ItemType Directory -Path "$(BIN_DIR)" | Out-Null }
-
-# GUI版本
-$(GUI_TARGET): $(COMMON_OBJECTS) $(ENET_OBJECTS) $(OBJ_DIR)/main.o
-	$(CC) $(CFLAGS) $(IUP_INCLUDE) -o $@ $^ $(IUP_LIBS) $(LDFLAGS)
-	Copy-Item -Path "$(subst /,\,$(IUP_PATH))\iup.dll" -Destination "$(BIN_DIR)" -Force
-
-# 通用目标文件编译规则
-$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
-	$(CC) $(CFLAGS) $(IUP_INCLUDE) -c -o $@ $<
-
-# 编译 ENet 源文件
-$(OBJ_DIR)/enet_%.o: libs/enet/%.c | directories
-	$(CC) $(CFLAGS) $(ENET_INC) -c -o $@ $<
-
-# 编译 main.c
-$(OBJ_DIR)/main.o: $(SRC_DIR)/main.c
-	$(CC) $(CFLAGS) $(IUP_INCLUDE) -c -o $@ $<
-
-# 清理规则 (PowerShell 语法)
-clean:
-	if (Test-Path "$(OBJ_DIR)") { Remove-Item -Path "$(OBJ_DIR)" -Recurse -Force }
-	if (Test-Path "$(BIN_DIR)") { Remove-Item -Path "$(BIN_DIR)" -Recurse -Force }
-
-# 编译GUI版本
-gui: directories $(GUI_TARGET)
-
-# 安装规则（可选）
-install: all
-	Write-Host "Installing executables..."
-	Copy-Item -Path "$(GUI_TARGET)" -Destination "C:\Program Files\Gobang\" -Force
-
-# 运行GUI版本
-run-gui: $(GUI_TARGET)
-	& ".\$(GUI_TARGET)"
-
-# 帮助信息
-help:
-	@echo Available targets:
-	@echo   all          - Build GUI version
-	@echo   gui          - Build GUI version
-	@echo   clean        - Remove all object files and executables
-	@echo   run-gui      - Build and run GUI version
-	@echo   install      - Install executables to system directory
-	@echo   help         - Show this help message
-
-# 声明伪目标
-.PHONY: all clean gui install run-gui help directories
@@ -32,13 +32,6 @@ int evaluate_move(int x, int y);
 */
 int evaluate_pos(int x, int y, int player);

-/**
- * @brief 评估棋盘价值
- *
- * @param player 玩家标识(PLAYER/AI)
- */
-int dfs(int x, int y, int player, int depth, int alpha, int beta, bool is_maximizing);
-
 /**
 * @brief AI下棋
 *
@@ -71,13 +64,5 @@ bool is_near_stones(int x, int y);
 */
 ThreatLevel detect_threat(int x, int y, int player);

-/**
- * @brief 计算指定方向的威胁数量
- * @param x, y 起始位置
- * @param dx, dy 方向向量
- * @param player 玩家
- * @return 威胁数量
- */
-int count_threats_in_direction(int x, int y, int dx, int dy, int player);

 #endif // AI_H
@@ -135,6 +135,17 @@
 #define CONFIG_FILE "gobang_config.ini" // 配置文件路径
 #define MAX_PATH_LENGTH 256             // 最大路径长度

+//---------- LLM大模型参数 ----------//
+#define DEFAULT_LLM_USE 0                          // 默认不使用LLM (0=算法AI, 1=大模型)
+#define DEFAULT_LLM_ENDPOINT "https://api.minimax.chat/v1/chat/completions" // 默认API地址
+#define DEFAULT_LLM_API_KEY ""                     // 默认API Key (需用户填写)
+#define DEFAULT_LLM_MODEL "MiniMax-Text-01"        // 默认模型名
+#define MAX_LLM_ENDPOINT_LEN 256                   // API地址最大长度
+#define MAX_LLM_API_KEY_LEN 128                    // API Key最大长度
+#define MAX_LLM_MODEL_LEN 64                       // 模型名最大长度
+#define LLM_MAX_RETRIES 3                          // LLM返回非法坐标时最大重试次数
+#define LLM_TIMEOUT_MS 30000                       // LLM HTTP请求超时(毫秒)
+
 //---------- 配置管理函数声明 ----------//
 /**
 * @brief 加载游戏配置
@@ -29,6 +29,12 @@ extern int network_timeout;      // 网络超时时间
 extern double defense_coefficient; // 防守系数
 extern int ai_difficulty;          // AI难度 (1-5)

+// ==================== LLM大模型相关变量 ====================
+extern int llm_use;                        // 是否使用LLM (0=算法AI, 1=大模型)
+extern char llm_endpoint[MAX_LLM_ENDPOINT_LEN]; // API地址
+extern char llm_api_key[MAX_LLM_API_KEY_LEN];   // API Key
+extern char llm_model[MAX_LLM_MODEL_LEN];       // 模型名
+
 // ==================== 网络相关变量 ====================
 extern NetworkGameState network_state; // 网络游戏状态

@@ -5,8 +5,8 @@
 * 它包含了游戏棋盘的表示、玩家操作、规则检查以及AI决策等功能。
 */

-#ifndef GO_BANG_H
-#define GO_BANG_H
+#ifndef GOBANG_H
+#define GOBANG_H

 #include <stdio.h>
 #include <stdbool.h>
@@ -88,4 +88,4 @@ bool return_move(int steps_to_undo);
 */
 int calculate_step_score(int x, int y, int player);

-#endif // GO_BANG_H
+#endif // GOBANG_H
@@ -8,14 +8,9 @@ extern Ihandle *dlg;
 extern Ihandle *board_canvas;
 extern Ihandle *lbl_player;
 extern Ihandle *lbl_status;
-extern int gui_game_mode;      // 0: PvP, 1: PvE, 2: Replay
+extern int gui_game_mode;      // 0: PvP, 1: PvE, 2: Replay, 3: Network
 extern int replay_total_steps; // 复盘总步数

-// 绘图函数 (在 gui_draw.c 中定义)
-void set_draw_color(Ihandle *ih, unsigned char r, unsigned char g, unsigned char b);
-void draw_board_iup(Ihandle *ih);
-void draw_stones_iup(Ihandle *ih);
-
 // 核心功能 (在 gui_core.c 中定义)
 void update_ui_labels();
 int screen_to_board(int screen_x, int screen_y, int *board_x, int *board_y);
@@ -24,7 +19,7 @@ int screen_to_board(int screen_x, int screen_y, int *board_x, int *board_y);
 void create_game_window();
 void start_pvp_game_gui();
 void start_pve_game_gui();
-void start_network_game_gui(); // 新增：启动网络对战游戏窗口
+void start_network_game_gui();
 int action_cb(Ihandle *ih);
 int button_cb(Ihandle *ih, int button, int pressed, int x, int y, char *status);
 int k_any_cb(Ihandle *ih, int c);
@@ -0,0 +1,35 @@
+/**
+ * @file llm_ai.h
+ * @brief 大模型AI模块头文件
+ * @note 通过OpenAI兼容API调用大模型进行五子棋对弈
+ */
+
+#ifndef LLM_AI_H
+#define LLM_AI_H
+
+#include <stdbool.h>
+
+/**
+ * @brief 调用大模型获取落子坐标（同步，会阻塞）
+ * @param out_x 输出：落子行坐标 (0-based)
+ * @param out_y 输出：落子列坐标 (0-based)
+ * @return true 获取成功，坐标合法且位置为空
+ * @return false 获取失败（网络错误/坐标非法/重试耗尽）
+ */
+bool llm_ai_move(int *out_x, int *out_y);
+
+/**
+ * @brief 异步启动大模型思考（后台线程）
+ * @note 调用后用 llm_ai_poll_result 轮询结果
+ */
+void llm_ai_start_move(void);
+
+/**
+ * @brief 轮询大模型结果（非阻塞）
+ * @param out_x 输出：落子行坐标
+ * @param out_y 输出：落子列坐标
+ * @return 0 仍在思考, 1 成功获取坐标, -1 失败（应回退算法AI）
+ */
+int llm_ai_poll_result(int *out_x, int *out_y);
+
+#endif // LLM_AI_H
@@ -13,13 +13,9 @@
 #include "type.h"
 #include "config.h"
 #include <stdbool.h>
-#include <enet/enet.h> // 引入 ENet 头文件
+#include <enet/enet.h>

-// 网络状态结构体在 type.h 中定义，我们需要修改 type.h 来包含 ENet 类型
-// 或者在这里重新定义（如果 type.h 中可以移除旧的定义）
-
-// 全局网络状态
-extern NetworkGameState network_state;
+// network_state 的 extern 声明在 globals.h 中

 // 函数声明

@@ -0,0 +1,300 @@
+/*
+  Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+#ifndef cJSON__h
+#define cJSON__h
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if !defined(__WINDOWS__) && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32))
+#define __WINDOWS__
+#endif
+
+#ifdef __WINDOWS__
+
+/* When compiling for windows, we specify a specific calling convention to avoid issues where we are being called from a project with a different default calling convention.  For windows you have 3 define options:
+
+CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever dllexport symbols
+CJSON_EXPORT_SYMBOLS - Define this on library build when you want to dllexport symbols (default)
+CJSON_IMPORT_SYMBOLS - Define this if you want to dllimport symbol
+
+For *nix builds that support visibility attribute, you can define similar behavior by
+
+setting default visibility to hidden by adding
+-fvisibility=hidden (for gcc)
+or
+-xldscope=hidden (for sun cc)
+to CFLAGS
+
+then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJSON_EXPORT_SYMBOLS does
+
+*/
+
+#define CJSON_CDECL __cdecl
+#define CJSON_STDCALL __stdcall
+
+/* export symbols by default, this is necessary for copy pasting the C and header file */
+#if !defined(CJSON_HIDE_SYMBOLS) && !defined(CJSON_IMPORT_SYMBOLS) && !defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_EXPORT_SYMBOLS
+#endif
+
+#if defined(CJSON_HIDE_SYMBOLS)
+#define CJSON_PUBLIC(type)   type CJSON_STDCALL
+#elif defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_PUBLIC(type)   __declspec(dllexport) type CJSON_STDCALL
+#elif defined(CJSON_IMPORT_SYMBOLS)
+#define CJSON_PUBLIC(type)   __declspec(dllimport) type CJSON_STDCALL
+#endif
+#else /* !__WINDOWS__ */
+#define CJSON_CDECL
+#define CJSON_STDCALL
+
+#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(CJSON_API_VISIBILITY)
+#define CJSON_PUBLIC(type)   __attribute__((visibility("default"))) type
+#else
+#define CJSON_PUBLIC(type) type
+#endif
+#endif
+
+/* project version */
+#define CJSON_VERSION_MAJOR 1
+#define CJSON_VERSION_MINOR 7
+#define CJSON_VERSION_PATCH 18
+
+#include <stddef.h>
+
+/* cJSON Types: */
+#define cJSON_Invalid (0)
+#define cJSON_False  (1 << 0)
+#define cJSON_True   (1 << 1)
+#define cJSON_NULL   (1 << 2)
+#define cJSON_Number (1 << 3)
+#define cJSON_String (1 << 4)
+#define cJSON_Array  (1 << 5)
+#define cJSON_Object (1 << 6)
+#define cJSON_Raw    (1 << 7) /* raw json */
+
+#define cJSON_IsReference 256
+#define cJSON_StringIsConst 512
+
+/* The cJSON structure: */
+typedef struct cJSON
+{
+    /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
+    struct cJSON *next;
+    struct cJSON *prev;
+    /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
+    struct cJSON *child;
+
+    /* The type of the item, as above. */
+    int type;
+
+    /* The item's string, if type==cJSON_String  and type == cJSON_Raw */
+    char *valuestring;
+    /* writing to valueint is DEPRECATED, use cJSON_SetNumberValue instead */
+    int valueint;
+    /* The item's number, if type==cJSON_Number */
+    double valuedouble;
+
+    /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
+    char *string;
+} cJSON;
+
+typedef struct cJSON_Hooks
+{
+      /* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
+      void *(CJSON_CDECL *malloc_fn)(size_t sz);
+      void (CJSON_CDECL *free_fn)(void *ptr);
+} cJSON_Hooks;
+
+typedef int cJSON_bool;
+
+/* Limits how deeply nested arrays/objects can be before cJSON rejects to parse them.
+ * This is to prevent stack overflows. */
+#ifndef CJSON_NESTING_LIMIT
+#define CJSON_NESTING_LIMIT 1000
+#endif
+
+/* returns the version of cJSON as a string */
+CJSON_PUBLIC(const char*) cJSON_Version(void);
+
+/* Supply malloc, realloc and free functions to cJSON */
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks);
+
+/* Memory Management: the caller is always responsible to free the results from all variants of cJSON_Parse (with cJSON_Delete) and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or cJSON_free as appropriate). The exception is cJSON_PrintPreallocated, where the caller has full responsibility of the buffer. */
+/* Supply a block of JSON, and this returns a cJSON object you can interrogate. */
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length);
+/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
+/* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error so will match cJSON_GetErrorPtr(). */
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated);
+
+/* Render a cJSON entity to text for transfer/storage. */
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
+/* Render a cJSON entity to text for transfer/storage without any formatting. */
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
+/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
+/* Render a cJSON entity to text using a buffer already allocated in memory with given length. Returns 1 on success and 0 on failure. */
+/* NOTE: cJSON is not always 100% accurate in estimating how much memory it will use, so to be safe allocate 5 bytes more than you actually need */
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format);
+/* Delete a cJSON entity and all subentities. */
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);
+
+/* Returns the number of items in an array (or object). */
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
+/* Retrieve item number "index" from array "array". Returns NULL if unsuccessful. */
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
+/* Get item "string" from object. Case insensitive. */
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string);
+/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
+
+/* Check item type and return its value */
+CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON * const item);
+CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item);
+
+/* These functions check the type of an item */
+CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item);
+
+/* These calls create a cJSON item of the appropriate type. */
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean);
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
+/* raw json */
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
+
+/* Create a string where valuestring references a string so
+ * it will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
+/* Create an object/array that only references it's elements so
+ * they will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
+
+/* These utilities create an Array of count items.
+ * The parameter count cannot be greater than the number of elements in the number array, otherwise array access will be out of bounds.*/
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count);
+
+/* Append item to the specified array/object. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+/* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object.
+ * WARNING: When this function was used, make sure to always check that (item->type & cJSON_StringIsConst) is zero before
+ * writing to `item->string` */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
+/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
+
+/* Remove/Detach items from Arrays/Objects. */
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
+
+/* Update array items. */
+CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,const char *string,cJSON *newitem);
+
+/* Duplicate a cJSON item */
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
+/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
+ * need to be released. With recurse!=0, it will duplicate any children connected to the item.
+ * The item->next and ->prev pointers are always zero on return from Duplicate. */
+/* Recursively compare two cJSON items for equality. If either a or b is NULL or invalid, they will be considered unequal.
+ * case_sensitive determines if object keys are treated case sensitive (1) or case insensitive (0) */
+CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive);
+
+/* Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
+ * The input pointer json cannot point to a read-only address area, such as a string constant, 
+ * but should point to a readable and writable address area. */
+CJSON_PUBLIC(void) cJSON_Minify(char *json);
+
+/* Helper functions for creating and adding items to an object at the same time.
+ * They return the added item or NULL on failure. */
+CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean);
+CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number);
+CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string);
+CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw);
+CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name);
+
+/* When assigning an integer value, it needs to be propagated to valuedouble too. */
+#define cJSON_SetIntValue(object, number) ((object) ? (object)->valueint = (object)->valuedouble = (number) : (number))
+/* helper for the cJSON_SetNumberValue macro */
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
+#define cJSON_SetNumberValue(object, number) ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) : (number))
+/* Change the valuestring of a cJSON_String object, only takes effect when type of object is cJSON_String */
+CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
+
+/* If the object is not a boolean type this does nothing and returns cJSON_Invalid else it returns the new type*/
+#define cJSON_SetBoolValue(object, boolValue) ( \
+    (object != NULL && ((object)->type & (cJSON_False|cJSON_True))) ? \
+    (object)->type=((object)->type &(~(cJSON_False|cJSON_True)))|((boolValue)?cJSON_True:cJSON_False) : \
+    cJSON_Invalid\
+)
+
+/* Macro for iterating over an array or object */
+#define cJSON_ArrayForEach(element, array) for(element = (array != NULL) ? (array)->child : NULL; element != NULL; element = element->next)
+
+/* malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks */
+CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
+CJSON_PUBLIC(void) cJSON_free(void *object);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -137,94 +137,6 @@ int evaluate_pos(int x, int y, int player)
    return total_score + position_bonus; // 返回总评估分
 }

-/**
- * @brief 带α-β剪枝的深度优先搜索(极小极大算法实现)
- * @param x 当前行坐标
- * @param y 当前列坐标
- * @param player 当前玩家
- * @param depth 剩余搜索深度
- * @param alpha α值(当前最大值)
- * @param beta β值(当前最小值)
- * @param is_maximizing 是否为极大化玩家(AI)
- * @return int 最佳评估分数
- * @note 算法流程:
- * 1. 检查是否获胜或达到搜索深度
- * 2. 遍历所有可能落子位置
- * 3. 递归评估每个位置的分数
- * 4. 根据is_maximizing选择最大/最小值
- * 5. 使用α-β剪枝优化搜索过程
- */
-int dfs(int x, int y, int player, int depth, int alpha, int beta, bool is_maximizing)
-{
-    // 检查当前落子是否获胜
-    if (check_win(x, y, player))
-    {
-        return (player == AI) ? SEARCH_WIN_BONUS + depth : -SEARCH_WIN_BONUS - depth;
-    }
-
-    // 达到搜索深度或平局
-    if (depth == 0 || step_count >= BOARD_SIZE * BOARD_SIZE)
-    {
-        return evaluate_pos(x, y, AI) - evaluate_pos(x, y, PLAYER);
-    }
-
-    int best_score = is_maximizing ? -1000000 : 1000000;
-
-    // 使用移动排序优化搜索效率
-    ScoredMove candidate_moves[BOARD_SIZE * BOARD_SIZE];
-    int move_count = generate_candidate_moves(candidate_moves, player);
-
-    // 限制搜索的候选移动数量以提高性能
-    int max_candidates = (depth >= 3) ? 15 : 25; // 深度越大，候选移动越少
-    if (move_count > max_candidates)
-    {
-        move_count = max_candidates;
-    }
-
-    // 遍历排序后的候选移动
-    for (int idx = 0; idx < move_count; idx++)
-    {
-        int i = candidate_moves[idx].x;
-        int j = candidate_moves[idx].y;
-
-        // 模拟当前玩家落子
-        board[i][j] = player;
-        step_count++;
-
-        // 递归搜索(切换玩家和搜索深度)
-        int current_score = dfs(i, j, (player == AI) ? PLAYER : AI, depth - 1, alpha, beta, !is_maximizing);
-
-        // 撤销落子
-        board[i][j] = EMPTY;
-        step_count--;
-
-        // 极大值玩家(AI)逻辑
-        if (is_maximizing)
-        {
-            best_score = (current_score > best_score) ? current_score : best_score;
-            alpha = (best_score > alpha) ? best_score : alpha;
-            // α剪枝
-            if (beta <= alpha)
-            {
-                break;
-            }
-        }
-        // 极小值玩家(人类)逻辑
-        else
-        {
-            best_score = (current_score < best_score) ? current_score : best_score;
-            beta = (best_score < beta) ? best_score : beta;
-            // β剪枝
-            if (beta <= alpha)
-            {
-                break;
-            }
-        }
-    }
-
-    return best_score;
-}
-
 /**
 * @brief AI决策主函数，使用评估函数和搜索算法选择最佳落子位置
 * @note 采用两阶段决策逻辑：
@@ -542,58 +454,3 @@ ThreatLevel detect_threat(int x, int y, int player)
    return max_threat;
 }

-/**
- * @brief 计算指定方向的威胁数量
- * @param x, y 起始位置
- * @param dx, dy 方向向量
- * @param player 玩家
- * @return 威胁数量
- */
-int count_threats_in_direction(int x, int y, int dx, int dy, int player)
-{
-    int threats = 0;
-
-    // 向前搜索
-    for (int i = 1; i < 5; i++)
-    {
-        int nx = x + i * dx;
-        int ny = y + i * dy;
-
-        if (nx < 0 || nx >= BOARD_SIZE || ny < 0 || ny >= BOARD_SIZE)
-        {
-            break;
-        }
-
-        if (board[nx][ny] == player)
-        {
-            threats++;
-        }
-        else if (board[nx][ny] != EMPTY)
-        {
-            break;
-        }
-    }
-
-    // 向后搜索
-    for (int i = 1; i < 5; i++)
-    {
-        int nx = x - i * dx;
-        int ny = y - i * dy;
-
-        if (nx < 0 || nx >= BOARD_SIZE || ny < 0 || ny >= BOARD_SIZE)
-        {
-            break;
-        }
-
-        if (board[nx][ny] == player)
-        {
-            threats++;
-        }
-        else if (board[nx][ny] != EMPTY)
-        {
-            break;
-        }
-    }
-
-    return threats;
-}
@@ -23,7 +23,7 @@ void load_game_config()
        return;
    }

-    char line[256];
+    char line[512];
    while (fgets(line, sizeof(line), file))
    {
        // 去除换行符
@@ -79,6 +79,25 @@ void load_game_config()
                defense_coefficient = DEFAULT_DEFENSE_COEFFICIENT + (ai_difficulty - 1) * 0.1;
            }
        }
+        else if (strncmp(line, "LLM_USE=", 8) == 0)
+        {
+            llm_use = (atoi(line + 8) != 0) ? 1 : 0;
+        }
+        else if (strncmp(line, "LLM_ENDPOINT=", 13) == 0)
+        {
+            strncpy(llm_endpoint, line + 13, MAX_LLM_ENDPOINT_LEN - 1);
+            llm_endpoint[MAX_LLM_ENDPOINT_LEN - 1] = '\0';
+        }
+        else if (strncmp(line, "LLM_API_KEY=", 12) == 0)
+        {
+            strncpy(llm_api_key, line + 12, MAX_LLM_API_KEY_LEN - 1);
+            llm_api_key[MAX_LLM_API_KEY_LEN - 1] = '\0';
+        }
+        else if (strncmp(line, "LLM_MODEL=", 10) == 0)
+        {
+            strncpy(llm_model, line + 10, MAX_LLM_MODEL_LEN - 1);
+            llm_model[MAX_LLM_MODEL_LEN - 1] = '\0';
+        }
    }

    fclose(file);
@@ -114,6 +133,16 @@ void save_game_config()
    fprintf(file, "\n# AI难度 (1-5)\n");
    fprintf(file, "AI_DIFFICULTY=%d\n", ai_difficulty);

+    fprintf(file, "\n# 大模型AI设置\n");
+    fprintf(file, "# 是否使用大模型 (0=算法AI, 1=大模型)\n");
+    fprintf(file, "LLM_USE=%d\n", llm_use);
+    fprintf(file, "# API地址\n");
+    fprintf(file, "LLM_ENDPOINT=%s\n", llm_endpoint);
+    fprintf(file, "# API Key\n");
+    fprintf(file, "LLM_API_KEY=%s\n", llm_api_key);
+    fprintf(file, "# 模型名称\n");
+    fprintf(file, "LLM_MODEL=%s\n", llm_model);
+
    fclose(file);
    printf("配置保存完成\n");
 }
@@ -132,5 +161,13 @@ void reset_to_default_config()
    ai_difficulty = 3; // 默认AI难度
    defense_coefficient = DEFAULT_DEFENSE_COEFFICIENT + (ai_difficulty - 1) * 0.1;

+    llm_use = DEFAULT_LLM_USE;
+    strncpy(llm_endpoint, DEFAULT_LLM_ENDPOINT, MAX_LLM_ENDPOINT_LEN - 1);
+    llm_endpoint[MAX_LLM_ENDPOINT_LEN - 1] = '\0';
+    strncpy(llm_api_key, DEFAULT_LLM_API_KEY, MAX_LLM_API_KEY_LEN - 1);
+    llm_api_key[MAX_LLM_API_KEY_LEN - 1] = '\0';
+    strncpy(llm_model, DEFAULT_LLM_MODEL, MAX_LLM_MODEL_LEN - 1);
+    llm_model[MAX_LLM_MODEL_LEN - 1] = '\0';
+
    printf("已重置为默认配置\n");
 }
@@ -26,6 +26,12 @@ int network_timeout = NETWORK_TIMEOUT_MS;               // 网络超时时间
 double defense_coefficient = DEFAULT_DEFENSE_COEFFICIENT; // 防守系数
 int ai_difficulty = 3;                                    // AI难度 (1-5)

+// ==================== LLM大模型相关变量定义 ====================
+int llm_use = DEFAULT_LLM_USE;                                    // 是否使用LLM
+char llm_endpoint[MAX_LLM_ENDPOINT_LEN] = DEFAULT_LLM_ENDPOINT;  // API地址
+char llm_api_key[MAX_LLM_API_KEY_LEN] = DEFAULT_LLM_API_KEY;    // API Key
+char llm_model[MAX_LLM_MODEL_LEN] = DEFAULT_LLM_MODEL;          // 模型名
+
 // ==================== 网络相关变量定义 ====================
 NetworkGameState network_state = {0}; // 网络游戏状态

@@ -6,6 +6,10 @@
 #include "ai.h"
 #include "record.h"
 #include "network.h"
+#include "llm_ai.h"
+#ifdef _WIN32
+#include <windows.h>
+#endif
 #include <iup.h>
 #include <iupdraw.h>
 #include <stdio.h>
@@ -13,6 +17,7 @@
 #include <string.h>

 static Ihandle *timer = NULL; // 网络轮询定时器
+static Ihandle *llm_timer = NULL; // LLM异步轮询定时器

 /**
 * @brief 网络事件轮询回调
@@ -72,24 +77,173 @@ static int timer_cb(Ihandle *ih)
    return IUP_DEFAULT;
 }

+/**
+ * @brief 处理AI落子结果（LLM或算法）
+ */
+static void process_ai_move_result(void)
+{
+    Step last_step = steps[step_count - 1];
+    if (check_win(last_step.x, last_step.y, AI))
+    {
+        game_over = 1;
+        sprintf(status_message, "AI获胜！");
+        IupMessage("游戏结束", "AI获胜！");
+    }
+    else
+    {
+        current_player_gui = PLAYER;
+        sprintf(status_message, "轮到玩家");
+    }
+    update_ui_labels();
+    if (board_canvas)
+        IupUpdate(board_canvas);
+}
+
+/**
+ * @brief LLM异步轮询定时器回调
+ */
+static int llm_timer_cb(Ihandle *ih)
+{
+    (void)ih;
+    int x, y;
+    int result = llm_ai_poll_result(&x, &y);
+
+    if (result == 0)
+        return IUP_DEFAULT; // 仍在思考
+
+    // 停止轮询定时器
+    if (llm_timer)
+    {
+        IupSetAttribute(llm_timer, "RUN", "NO");
+    }
+
+    if (result == 1 && x >= 0 && y >= 0 && player_move(x, y, AI))
+    {
+        // LLM成功且落子合法
+    }
+    else
+    {
+        // LLM失败或坐标非法，回退到算法AI
+        if (result == 1)
+            snprintf(status_message, sizeof(status_message), "大模型返回非法位置，使用算法AI");
+        else
+            snprintf(status_message, sizeof(status_message), "大模型响应失败，使用算法AI");
+        update_ui_labels();
+        ai_move(ai_difficulty);
+    }
+
+    process_ai_move_result();
+    return IUP_DEFAULT;
+}
+
+/**
+ * @brief MAP_CB 回调：Canvas映射后强制重绘
+ */
+static int map_cb(Ihandle *ih)
+{
+    (void)ih;
+    IupUpdate(board_canvas);
+    return IUP_DEFAULT;
+}
+
 /**
 * @brief ACTION 回调：负责重绘
 */
 int action_cb(Ihandle *ih)
 {
-    IupDrawBegin(ih);
+    HWND hwnd = (HWND)IupGetAttribute(ih, "WID");
+    if (!hwnd)
+        return IUP_DEFAULT;

-    int w, h;
-    IupGetIntInt(ih, "DRAWSIZE", &w, &h);
+    HDC hdc = GetDC(hwnd);
+    if (!hdc)
+        return IUP_DEFAULT;

-    set_draw_color(ih, 240, 217, 181); // 棋盘背景色 (木纹色近似)
-    IupSetAttribute(ih, "DRAWSTYLE", "FILL");
-    IupDrawRectangle(ih, 0, 0, w, h);
+    RECT rc;
+    GetClientRect(hwnd, &rc);

-    draw_board_iup(ih);
-    draw_stones_iup(ih);
+    // 预创建所有 GDI 对象（避免循环内反复创建销毁）
+    HBRUSH bg_brush = CreateSolidBrush(RGB(240, 217, 181));
+    HBRUSH black_brush = CreateSolidBrush(RGB(0, 0, 0));
+    HBRUSH white_brush = CreateSolidBrush(RGB(255, 255, 255));
+    HBRUSH red_brush = CreateSolidBrush(RGB(255, 0, 0));
+    HPEN grid_pen = CreatePen(PS_SOLID, 1, RGB(0, 0, 0));
+    HPEN stone_pen = CreatePen(PS_SOLID, 1, RGB(0, 0, 0));
+
+    // 1. 填充背景
+    FillRect(hdc, &rc, bg_brush);
+
+    // 2. 绘制棋盘网格
+    HPEN prev_pen = (HPEN)SelectObject(hdc, grid_pen);
+    for (int i = 0; i < BOARD_SIZE; i++)
+    {
+        MoveToEx(hdc, BOARD_OFFSET_X, BOARD_OFFSET_Y + i * CELL_SIZE, NULL);
+        LineTo(hdc, BOARD_OFFSET_X + (BOARD_SIZE - 1) * CELL_SIZE, BOARD_OFFSET_Y + i * CELL_SIZE);
+        MoveToEx(hdc, BOARD_OFFSET_X + i * CELL_SIZE, BOARD_OFFSET_Y, NULL);
+        LineTo(hdc, BOARD_OFFSET_X + i * CELL_SIZE, BOARD_OFFSET_Y + (BOARD_SIZE - 1) * CELL_SIZE);
+    }
+
+    // 3. 星位/天元
+    SelectObject(hdc, black_brush);
+    if (BOARD_SIZE == 15)
+    {
+        int stars[] = {3, 7, 11};
+        for (int si = 0; si < 3; si++)
+            for (int sj = 0; sj < 3; sj++)
+            {
+                int cx = BOARD_OFFSET_X + stars[si] * CELL_SIZE;
+                int cy = BOARD_OFFSET_Y + stars[sj] * CELL_SIZE;
+                Ellipse(hdc, cx - 3, cy - 3, cx + 4, cy + 4);
+            }
+    }
+    else
+    {
+        int cx = BOARD_OFFSET_X + (BOARD_SIZE / 2) * CELL_SIZE;
+        int cy = BOARD_OFFSET_Y + (BOARD_SIZE / 2) * CELL_SIZE;
+        Ellipse(hdc, cx - 3, cy - 3, cx + 4, cy + 4);
+    }
+
+    // 4. 绘制棋子
+    SelectObject(hdc, stone_pen);
+    for (int i = 0; i < BOARD_SIZE; i++)
+        for (int j = 0; j < BOARD_SIZE; j++)
+        {
+            if (board[i][j] == EMPTY)
+                continue;
+
+            int cx = BOARD_OFFSET_X + j * CELL_SIZE;
+            int cy = BOARD_OFFSET_Y + i * CELL_SIZE;
+
+            if (board[i][j] == PLAYER)
+                SelectObject(hdc, black_brush);
+            else
+                SelectObject(hdc, white_brush);
+
+            Ellipse(hdc, cx - STONE_RADIUS, cy - STONE_RADIUS,
+                    cx + STONE_RADIUS + 1, cy + STONE_RADIUS + 1);
+        }
+
+    // 5. 标记最后落子位置（红色小方块）
+    if (step_count > 0 && step_count <= MAX_STEPS)
+    {
+        Step last = steps[step_count - 1];
+        int cx = BOARD_OFFSET_X + last.y * CELL_SIZE;
+        int cy = BOARD_OFFSET_Y + last.x * CELL_SIZE;
+        RECT mark = {cx - 3, cy - 3, cx + 4, cy + 4};
+        FillRect(hdc, &mark, red_brush);
+    }
+
+    // 恢复原始 GDI 对象，然后清理
+    SelectObject(hdc, prev_pen);
+    ReleaseDC(hwnd, hdc);
+
+    DeleteObject(bg_brush);
+    DeleteObject(black_brush);
+    DeleteObject(white_brush);
+    DeleteObject(red_brush);
+    DeleteObject(grid_pen);
+    DeleteObject(stone_pen);

-    IupDrawEnd(ih);
    return IUP_DEFAULT;
 }

@@ -163,14 +317,20 @@ int btn_save_cb(Ihandle *ih)
        else
            base_name = filename;

-        int mode = (gui_game_mode == 0) ? GAME_MODE_PVP : GAME_MODE_AI;
+        int mode;
+        if (gui_game_mode == 0)
+            mode = GAME_MODE_PVP;
+        else if (gui_game_mode == 3)
+            mode = GAME_MODE_NETWORK;
+        else
+            mode = GAME_MODE_AI;
        if (save_game_to_file(base_name, mode) == 0)
        {
-            sprintf(status_message, "保存成功: %s", base_name);
+            snprintf(status_message, sizeof(status_message), "保存成功: %s", base_name);
        }
        else
        {
-            sprintf(status_message, "保存失败");
+            snprintf(status_message, sizeof(status_message), "保存失败");
        }
        update_ui_labels();
    }
@@ -185,23 +345,29 @@ int btn_save_cb(Ihandle *ih)
 int btn_back_cb(Ihandle *ih)
 {
    (void)ih;
-    printf("DEBUG: Back to Menu clicked\n");

-    // 如果是网络模式，断开连接
+    // 停止所有定时器
+    if (timer)
+    {
+        IupSetAttribute(timer, "RUN", "NO");
+        IupDestroy(timer);
+        timer = NULL;
+    }
+    if (llm_timer)
+    {
+        IupSetAttribute(llm_timer, "RUN", "NO");
+        IupDestroy(llm_timer);
+        llm_timer = NULL;
+    }
+
+    // 如果是网络模式，彻底清理网络资源
    if (gui_game_mode == 3)
    {
-        disconnect_network();
-        if (timer)
-        {
-            IupSetAttribute(timer, "RUN", "NO");
-            IupDestroy(timer);
-            timer = NULL;
-        }
+        cleanup_network();
    }

    // 1. 先显示主菜单
    show_main_menu();
-    printf("DEBUG: Main menu shown\n");

    // 2. 销毁游戏窗口
    if (dlg)
@@ -209,7 +375,6 @@ int btn_back_cb(Ihandle *ih)
        Ihandle *old_dlg = dlg;
        dlg = NULL; // 先清除全局指针
        IupDestroy(old_dlg);
-        printf("DEBUG: Destroyed game window\n");
    }

    return IUP_IGNORE; // 返回 IUP_IGNORE 以阻止默认处理
@@ -278,25 +443,34 @@ int button_cb(Ihandle *ih, int button, int pressed, int x, int y, char *status)
                        else // PvE
                        {
                            current_player_gui = AI;
-                            sprintf(status_message, "AI思考中...");
                            update_ui_labels();
                            IupUpdate(ih); // 立即更新显示
                            IupFlush();    // 强制刷新事件队列

-                            // AI 回合
-                            ai_move(ai_difficulty);
-
-                            Step last_step = steps[step_count - 1];
-                            if (check_win(last_step.x, last_step.y, AI))
+                            if (llm_use)
                            {
-                                game_over = 1;
-                                sprintf(status_message, "AI获胜！");
-                                IupMessage("游戏结束", "AI获胜！");
+                                // 大模型AI - 异步调用，不阻塞UI
+                                sprintf(status_message, "AI思考中（大模型）...");
+                                update_ui_labels();
+
+                                // 创建或复用轮询定时器
+                                if (!llm_timer)
+                                {
+                                    llm_timer = IupTimer();
+                                    IupSetCallback(llm_timer, "ACTION_CB", (Icallback)llm_timer_cb);
+                                    IupSetAttribute(llm_timer, "TIME", "100"); // 100ms轮询
+                                }
+                                llm_ai_start_move();
+                                IupSetAttribute(llm_timer, "RUN", "YES");
                            }
                            else
                            {
-                                current_player_gui = PLAYER;
-                                sprintf(status_message, "轮到玩家");
+                                // 算法AI - 同步调用
+                                sprintf(status_message, "AI思考中...");
+                                update_ui_labels();
+
+                                ai_move(ai_difficulty);
+                                process_ai_move_result();
                            }
                        }
                    }
@@ -336,8 +510,6 @@ int k_any_cb(Ihandle *ih, int c)
 */
 void create_game_window()
 {
-    printf("DEBUG: create_game_window start\n");
-
    if (dlg)
    {
        IupDestroy(dlg);
@@ -349,10 +521,10 @@ void create_game_window()
    if (!board_canvas)
        printf("ERROR: Failed to create board_canvas\n");

-    IupSetAttribute(board_canvas, "ACTION", "action_cb");
    IupSetCallback(board_canvas, "ACTION", (Icallback)action_cb);
    IupSetCallback(board_canvas, "BUTTON_CB", (Icallback)button_cb);
    IupSetCallback(board_canvas, "K_ANY", (Icallback)k_any_cb);
+    IupSetCallback(board_canvas, "MAP_CB", (Icallback)map_cb);

    // 计算棋盘像素大小
    int board_pixel_size = BOARD_SIZE * CELL_SIZE + BOARD_OFFSET_X * 2;
@@ -360,6 +532,8 @@ void create_game_window()
    sprintf(size, "%dx%d", board_pixel_size, board_pixel_size);
    IupSetAttribute(board_canvas, "RASTERSIZE", size);
    IupSetAttribute(board_canvas, "EXPAND", "NO");
+    IupSetAttribute(board_canvas, "BORDER", "NO");
+    IupSetAttribute(board_canvas, "BGCOLOR", "240 217 181");

    // 创建标签 (玩家信息和游戏状态)
    lbl_player = IupLabel("当前玩家: 黑子");
@@ -434,8 +608,6 @@ void create_game_window()

    // 设置 CLOSE_CB 回调，确保点击X也能正确返回菜单
    IupSetCallback(dlg, "CLOSE_CB", (Icallback)btn_back_cb);
-
-    printf("DEBUG: create_game_window end\n");
 }

 void start_pvp_game_gui()
@@ -448,6 +620,7 @@ void start_pvp_game_gui()
    create_game_window();

    IupShowXY(dlg, IUP_CENTER, IUP_CENTER);
+    IupFlush(); // 确保窗口完全映射
    sprintf(status_message, "玩家对战模式 - 黑方先行");
    update_ui_labels();
    if (board_canvas)
@@ -456,56 +629,44 @@ void start_pvp_game_gui()

 void start_pve_game_gui()
 {
-    printf("DEBUG: start_pve_game_gui start\n");
    gui_game_mode = 1;
-    // ai_difficulty 是全局变量
    empty_board();
    current_player_gui = PLAYER;
    game_over = 0;

    create_game_window();
-    printf("DEBUG: create_game_window returned\n");

    if (dlg)
    {
        IupShowXY(dlg, IUP_CENTER, IUP_CENTER);
-        printf("DEBUG: IupShowXY called\n");
+        IupFlush();
    }
    else
    {
-        printf("ERROR: dlg is NULL in start_pve_game_gui\n");
        return;
    }

    sprintf(status_message, "人机对战模式 - 玩家执黑先行");
    update_ui_labels();
-    printf("DEBUG: update_ui_labels returned\n");

-    // 强制初始重绘
    if (board_canvas)
-    {
        IupUpdate(board_canvas);
-    }
-    printf("DEBUG: start_pve_game_gui end\n");
 }

 void start_network_game_gui()
 {
-    printf("DEBUG: start_network_game_gui start\n");
    gui_game_mode = 3;
    empty_board();

-    // 主机执黑先行
    current_player_gui = PLAYER1;
    game_over = 0;

    create_game_window();
-    printf("DEBUG: create_game_window returned\n");

    if (dlg)
    {
        IupShowXY(dlg, IUP_CENTER, IUP_CENTER);
-        printf("DEBUG: IupShowXY called\n");
+        IupFlush();
    }

    if (network_state.is_server)
@@ -526,6 +687,4 @@ void start_network_game_gui()
    IupSetCallback(timer, "ACTION_CB", (Icallback)timer_cb);
    IupSetAttribute(timer, "TIME", "50"); // 50ms 轮询一次
    IupSetAttribute(timer, "RUN", "YES");
-
-    printf("DEBUG: start_network_game_gui end\n");
 }
@@ -14,20 +14,16 @@ Ihandle *menu_dlg = NULL;
 static int btn_pvp_cb(Ihandle *ih)
 {
    (void)ih;
-    printf("DEBUG: Starting PvP Game\n");
-    // hide_main_menu(); // DO NOT HIDE MAIN MENU YET
    start_pvp_game_gui();
-    IupHide(menu_dlg); // Hide main menu manually AFTER game window created
+    IupHide(menu_dlg);
    return IUP_DEFAULT;
 }

 static int btn_pve_cb(Ihandle *ih)
 {
    (void)ih;
-    printf("DEBUG: Starting PvE Game\n");
-    // hide_main_menu(); // DO NOT HIDE MAIN MENU YET
    start_pve_game_gui();
-    IupHide(menu_dlg); // Hide main menu manually AFTER game window created
+    IupHide(menu_dlg);
    return IUP_DEFAULT;
 }

@@ -87,7 +83,6 @@ static int btn_network_cancel_cb(Ihandle *ih)
 static int btn_network_cb(Ihandle *ih)
 {
    (void)ih;
-    printf("DEBUG: Opening Network Menu\n");

    Ihandle *txt_ip = IupText(NULL);
    IupSetAttribute(txt_ip, "NAME", "NET_IP");
@@ -135,10 +130,8 @@ static int btn_network_cb(Ihandle *ih)
 static int btn_replay_cb(Ihandle *ih)
 {
    (void)ih;
-    printf("DEBUG: Starting Replay Mode\n");
-    // hide_main_menu(); // Don't hide main menu yet, wait for file selection
    start_replay_gui();
-    IupHide(menu_dlg); // Hide main menu
+    IupHide(menu_dlg);
    return IUP_DEFAULT;
 }

@@ -180,6 +173,36 @@ static int btn_save_settings_cb(Ihandle *ih)
    ai_difficulty = ai_level;
    defense_coefficient = DEFAULT_DEFENSE_COEFFICIENT + (ai_difficulty - 1) * 0.1;

+    // LLM 设置
+    Ihandle *lst_ai_mode = IupGetDialogChild(dlg, "AI_MODE");
+    Ihandle *txt_endpoint = IupGetDialogChild(dlg, "LLM_ENDPOINT");
+    Ihandle *txt_apikey = IupGetDialogChild(dlg, "LLM_API_KEY");
+    Ihandle *txt_model = IupGetDialogChild(dlg, "LLM_MODEL");
+
+    int ai_mode = IupGetInt(lst_ai_mode, "VALUE");
+    llm_use = (ai_mode == 2) ? 1 : 0;
+
+    char *endpoint = IupGetAttribute(txt_endpoint, "VALUE");
+    if (endpoint)
+    {
+        strncpy(llm_endpoint, endpoint, MAX_LLM_ENDPOINT_LEN - 1);
+        llm_endpoint[MAX_LLM_ENDPOINT_LEN - 1] = '\0';
+    }
+
+    char *apikey = IupGetAttribute(txt_apikey, "VALUE");
+    if (apikey)
+    {
+        strncpy(llm_api_key, apikey, MAX_LLM_API_KEY_LEN - 1);
+        llm_api_key[MAX_LLM_API_KEY_LEN - 1] = '\0';
+    }
+
+    char *model = IupGetAttribute(txt_model, "VALUE");
+    if (model)
+    {
+        strncpy(llm_model, model, MAX_LLM_MODEL_LEN - 1);
+        llm_model[MAX_LLM_MODEL_LEN - 1] = '\0';
+    }
+
    // Save config
    save_game_config();

@@ -251,6 +274,42 @@ static int btn_settings_cb(Ihandle *ih)
    IupSetInt(lst_ai, "VALUE", ai_difficulty);
    IupSetAttribute(lst_ai, "SIZE", "80x");

+    // === 大模型AI设置 ===
+    Ihandle *lbl_llm_sep = IupLabel("--- 大模型AI设置 ---");
+    IupSetAttribute(lbl_llm_sep, "ALIGNMENT", "ACENTER");
+
+    // 6. AI 模式选择
+    Ihandle *lbl_ai_mode = IupLabel("AI模式:");
+    Ihandle *lst_ai_mode = IupList(NULL);
+    IupSetAttribute(lst_ai_mode, "NAME", "AI_MODE");
+    IupSetAttribute(lst_ai_mode, "DROPDOWN", "YES");
+    IupSetAttribute(lst_ai_mode, "1", "算法AI (本地)");
+    IupSetAttribute(lst_ai_mode, "2", "大模型AI (在线)");
+    IupSetInt(lst_ai_mode, "VALUE", llm_use ? 2 : 1);
+    IupSetAttribute(lst_ai_mode, "SIZE", "120x");
+
+    // 7. LLM API 地址
+    Ihandle *lbl_endpoint = IupLabel("API地址:");
+    Ihandle *txt_endpoint = IupText(NULL);
+    IupSetAttribute(txt_endpoint, "NAME", "LLM_ENDPOINT");
+    IupSetAttribute(txt_endpoint, "VALUE", llm_endpoint);
+    IupSetAttribute(txt_endpoint, "SIZE", "250x");
+
+    // 8. LLM API Key
+    Ihandle *lbl_apikey = IupLabel("API Key:");
+    Ihandle *txt_apikey = IupText(NULL);
+    IupSetAttribute(txt_apikey, "NAME", "LLM_API_KEY");
+    IupSetAttribute(txt_apikey, "VALUE", llm_api_key);
+    IupSetAttribute(txt_apikey, "PASSWORD", "YES");
+    IupSetAttribute(txt_apikey, "SIZE", "200x");
+
+    // 9. LLM 模型名
+    Ihandle *lbl_model = IupLabel("模型名称:");
+    Ihandle *txt_model = IupText(NULL);
+    IupSetAttribute(txt_model, "NAME", "LLM_MODEL");
+    IupSetAttribute(txt_model, "VALUE", llm_model);
+    IupSetAttribute(txt_model, "SIZE", "150x");
+
    // Buttons
    Ihandle *btn_save = IupButton("保存", NULL);
    IupSetCallback(btn_save, "ACTION", (Icallback)btn_save_settings_cb);
@@ -273,6 +332,23 @@ static int btn_settings_cb(Ihandle *ih)
    IupSetAttribute(hbox_ai, "ALIGNMENT", "ACENTER");
    IupSetAttribute(hbox_ai, "GAP", "10");

+    // LLM 设置布局
+    Ihandle *hbox_ai_mode = IupHbox(lbl_ai_mode, lst_ai_mode, NULL);
+    IupSetAttribute(hbox_ai_mode, "ALIGNMENT", "ACENTER");
+    IupSetAttribute(hbox_ai_mode, "GAP", "10");
+
+    Ihandle *hbox_endpoint = IupHbox(lbl_endpoint, txt_endpoint, NULL);
+    IupSetAttribute(hbox_endpoint, "ALIGNMENT", "ACENTER");
+    IupSetAttribute(hbox_endpoint, "GAP", "10");
+
+    Ihandle *hbox_apikey = IupHbox(lbl_apikey, txt_apikey, NULL);
+    IupSetAttribute(hbox_apikey, "ALIGNMENT", "ACENTER");
+    IupSetAttribute(hbox_apikey, "GAP", "10");
+
+    Ihandle *hbox_model = IupHbox(lbl_model, txt_model, NULL);
+    IupSetAttribute(hbox_model, "ALIGNMENT", "ACENTER");
+    IupSetAttribute(hbox_model, "GAP", "10");
+
    Ihandle *hbox_btns = IupHbox(btn_save, btn_cancel, NULL);
    IupSetAttribute(hbox_btns, "GAP", "20");
    IupSetAttribute(hbox_btns, "MARGIN", "10x0");
@@ -285,11 +361,17 @@ static int btn_settings_cb(Ihandle *ih)
        hbox_time,
        hbox_ai,
        IupLabel(NULL), // Spacer
+        lbl_llm_sep,
+        hbox_ai_mode,
+        hbox_endpoint,
+        hbox_apikey,
+        hbox_model,
+        IupLabel(NULL), // Spacer
        hbox_btns,
        NULL);

-    IupSetAttribute(vbox, "GAP", "15");
-    IupSetAttribute(vbox, "MARGIN", "30x30");
+    IupSetAttribute(vbox, "GAP", "10");
+    IupSetAttribute(vbox, "MARGIN", "20x20");

    Ihandle *dlg = IupDialog(vbox);
    IupSetAttribute(dlg, "TITLE", "游戏设置");
@@ -315,7 +397,6 @@ void create_main_menu()
 {
    if (menu_dlg)
        return;
-    printf("DEBUG: create_main_menu\n");

    Ihandle *lbl_title = IupLabel("五子棋 (Gobang)");
    IupSetAttribute(lbl_title, "FONT", "SimHei, 24");
@@ -377,14 +458,9 @@ void create_main_menu()

 void show_main_menu()
 {
-    printf("DEBUG: show_main_menu start\n");
    if (!menu_dlg)
-    {
-        printf("DEBUG: Creating main menu\n");
        create_main_menu();
-    }
    IupShowXY(menu_dlg, IUP_CENTER, IUP_CENTER);
-    printf("DEBUG: show_main_menu end\n");
 }

 void hide_main_menu()
@@ -0,0 +1,616 @@
+/**
+ * @file llm_ai.c
+ * @brief 大模型AI模块实现
+ * @note 通过OpenAI兼容API调用大模型进行五子棋对弈
+ *       支持 MiniMax、DeepSeek、GPT 等兼容接口
+ */
+
+#include "llm_ai.h"
+#include "globals.h"
+#include "config.h"
+#include "gobang.h"
+#include "cJSON.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#include <winhttp.h>
+#include <process.h>
+#endif
+
+// ==================== 内部函数声明 ====================
+
+static bool http_post_json(const char *url, const char *api_key,
+                           const char *json_body, char *response, int response_size);
+static char *build_prompt(void);
+static char *build_request_json(const char *prompt);
+static bool parse_response(const char *response, int *out_x, int *out_y);
+static bool extract_coords(const char *text, int *out_x, int *out_y);
+
+// ==================== 异步请求支持 ====================
+
+#ifdef _WIN32
+
+typedef struct {
+    int result;    // 0=思考中, 1=成功, -1=失败
+    int x, y;      // 成功时的坐标
+    HANDLE thread; // 后台线程句柄
+} LLMAsyncResult;
+
+static LLMAsyncResult g_llm_async = {0, 0, 0, NULL};
+
+static unsigned __stdcall llm_thread_func(void *arg)
+{
+    (void)arg;
+    int x = -1, y = -1;
+    bool ok = llm_ai_move(&x, &y);
+    g_llm_async.x = x;
+    g_llm_async.y = y;
+    g_llm_async.result = ok ? 1 : -1;
+    return 0;
+}
+
+void llm_ai_start_move(void)
+{
+    // 等待上一次线程结束（如果有）
+    if (g_llm_async.thread)
+    {
+        WaitForSingleObject(g_llm_async.thread, INFINITE);
+        CloseHandle(g_llm_async.thread);
+        g_llm_async.thread = NULL;
+    }
+
+    g_llm_async.result = 0;
+    g_llm_async.x = -1;
+    g_llm_async.y = -1;
+
+    g_llm_async.thread = (HANDLE)_beginthreadex(NULL, 0, llm_thread_func, NULL, 0, NULL);
+}
+
+int llm_ai_poll_result(int *out_x, int *out_y)
+{
+    if (g_llm_async.thread == NULL)
+        return -1;
+
+    // 检查线程是否完成
+    DWORD wait = WaitForSingleObject(g_llm_async.thread, 0);
+    if (wait == WAIT_OBJECT_0)
+    {
+        // 线程已完成
+        CloseHandle(g_llm_async.thread);
+        g_llm_async.thread = NULL;
+        *out_x = g_llm_async.x;
+        *out_y = g_llm_async.y;
+        return g_llm_async.result;
+    }
+
+    return 0; // 仍在思考
+}
+
+#else
+// 非Windows平台的同步回退
+void llm_ai_start_move(void) {}
+
+int llm_ai_poll_result(int *out_x, int *out_y)
+{
+    (void)out_x;
+    (void)out_y;
+    return -1;
+}
+#endif
+
+// ==================== 公共接口 ====================
+
+bool llm_ai_move(int *out_x, int *out_y)
+{
+    if (llm_api_key[0] == '\0')
+    {
+        printf("[LLM] 错误：未配置API Key\n");
+        return false;
+    }
+
+    for (int retry = 0; retry < LLM_MAX_RETRIES; retry++)
+    {
+        // 1. 构造 prompt
+        char *prompt = build_prompt();
+        if (!prompt)
+            return false;
+
+        // 2. 构造 JSON 请求体
+        char *json_body = build_request_json(prompt);
+        free(prompt);
+        if (!json_body)
+            return false;
+
+        // 3. 发送 HTTP 请求
+        char response[8192] = {0};
+        bool ok = http_post_json(llm_endpoint, llm_api_key, json_body, response, sizeof(response));
+        free(json_body);
+
+        if (!ok)
+        {
+            printf("[LLM] HTTP请求失败 (第%d次)\n", retry + 1);
+            continue;
+        }
+
+        // 4. 解析响应
+        if (parse_response(response, out_x, out_y))
+        {
+            // 5. 验证坐标合法性
+            if (*out_x >= 0 && *out_x < BOARD_SIZE &&
+                *out_y >= 0 && *out_y < BOARD_SIZE &&
+                board[*out_x][*out_y] == EMPTY)
+            {
+                printf("[LLM] 落子(%d, %d)\n", *out_x, *out_y);
+                return true;
+            }
+            printf("[LLM] 坐标(%d, %d)非法，重试 (%d/%d)\n", *out_x, *out_y, retry + 1, LLM_MAX_RETRIES);
+        }
+        else
+        {
+            printf("[LLM] 解析响应失败，重试 (%d/%d)\n", retry + 1, LLM_MAX_RETRIES);
+        }
+    }
+
+    return false;
+}
+
+// ==================== Prompt 构造 ====================
+
+// 检查坐标是否在棋盘范围内
+static bool in_board(int x, int y)
+{
+    return x >= 0 && x < BOARD_SIZE && y >= 0 && y < BOARD_SIZE;
+}
+
+static char *build_prompt(void)
+{
+    // 估算所需空间
+    int max_len = 3072 + step_count * 20 + 512;
+    char *buf = (char *)malloc(max_len);
+    if (!buf)
+        return NULL;
+
+    int pos = 0;
+
+    // 棋盘基本信息（不用()格式，避免被坐标提取误匹配）
+    pos += snprintf(buf + pos, max_len - pos,
+        "棋盘 %d×%d，坐标范围 0-%d\n"
+        "你=白O，对手=黑X\n\n",
+        BOARD_SIZE, BOARD_SIZE, BOARD_SIZE - 1);
+
+    // 黑子位置（用方括号格式，不用圆括号）
+    pos += snprintf(buf + pos, max_len - pos, "黑子X位置:");
+    int black_count = 0;
+    for (int i = 0; i < BOARD_SIZE; i++)
+        for (int j = 0; j < BOARD_SIZE; j++)
+            if (board[i][j] == PLAYER || board[i][j] == PLAYER1)
+            {
+                pos += snprintf(buf + pos, max_len - pos, " [%d,%d]", i, j);
+                black_count++;
+            }
+    if (black_count == 0)
+        pos += snprintf(buf + pos, max_len - pos, " 无");
+    pos += snprintf(buf + pos, max_len - pos, "\n");
+
+    // 白子位置
+    pos += snprintf(buf + pos, max_len - pos, "白子O位置:");
+    int white_count = 0;
+    for (int i = 0; i < BOARD_SIZE; i++)
+        for (int j = 0; j < BOARD_SIZE; j++)
+            if (board[i][j] == AI || board[i][j] == PLAYER2)
+            {
+                pos += snprintf(buf + pos, max_len - pos, " [%d,%d]", i, j);
+                white_count++;
+            }
+    if (white_count == 0)
+        pos += snprintf(buf + pos, max_len - pos, " 无");
+    pos += snprintf(buf + pos, max_len - pos, "\n");
+
+    // 最近走法
+    if (step_count > 0)
+    {
+        int show_count = step_count < 6 ? step_count : 6;
+        pos += snprintf(buf + pos, max_len - pos, "\n最近%d步:\n", show_count);
+        for (int i = step_count - show_count; i < step_count; i++)
+        {
+            const char *who = (steps[i].player == PLAYER || steps[i].player == PLAYER1) ? "X" : "O";
+            pos += snprintf(buf + pos, max_len - pos, "  %s [%d,%d]\n", who, steps[i].x, steps[i].y);
+        }
+    }
+
+    // 收集候选空位（已有棋子周围2格内的空位）
+    char candidate[BOARD_SIZE][BOARD_SIZE];
+    memset(candidate, 0, sizeof(candidate));
+
+    int total_stones = black_count + white_count;
+    if (total_stones == 0)
+    {
+        candidate[BOARD_SIZE / 2][BOARD_SIZE / 2] = 1;
+    }
+    else
+    {
+        for (int i = 0; i < BOARD_SIZE; i++)
+        {
+            for (int j = 0; j < BOARD_SIZE; j++)
+            {
+                if (board[i][j] != EMPTY)
+                {
+                    // 标记周围2格内的空位
+                    for (int di = -2; di <= 2; di++)
+                    {
+                        for (int dj = -2; dj <= 2; dj++)
+                        {
+                            int ni = i + di, nj = j + dj;
+                            if (in_board(ni, nj) && board[ni][nj] == EMPTY)
+                                candidate[ni][nj] = 1;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // 输出候选位置（用[]格式，避免与LLM回复的()格式冲突）
+    int cand_count = 0;
+    pos += snprintf(buf + pos, max_len - pos, "\n可选空位:\n");
+    for (int i = 0; i < BOARD_SIZE; i++)
+    {
+        for (int j = 0; j < BOARD_SIZE; j++)
+        {
+            if (candidate[i][j])
+            {
+                pos += snprintf(buf + pos, max_len - pos, "[%d,%d] ", i, j);
+                cand_count++;
+                if (cand_count % 10 == 0)
+                    pos += snprintf(buf + pos, max_len - pos, "\n");
+            }
+        }
+    }
+    pos += snprintf(buf + pos, max_len - pos, "\n共%d个可选。\n", cand_count);
+
+    // 输出格式要求
+    pos += snprintf(buf + pos, max_len - pos,
+        "\n从上面选一个最佳位置，用(行,列)格式回复。只回复坐标。\n");
+
+    return buf;
+}
+
+// ==================== JSON 构造 ====================
+
+static char *build_request_json(const char *prompt)
+{
+    cJSON *root = cJSON_CreateObject();
+    if (!root)
+        return NULL;
+
+    cJSON_AddStringToObject(root, "model", llm_model);
+
+    // messages 数组
+    cJSON *messages = cJSON_AddArrayToObject(root, "messages");
+
+    // system 消息
+    cJSON *sys_msg = cJSON_CreateObject();
+    cJSON_AddStringToObject(sys_msg, "role", "system");
+    cJSON_AddStringToObject(sys_msg, "content",
+        "你是五子棋AI。从给定的可选空位列表中选一个最佳位置落子。"
+        "只回复(行,列)格式的坐标，不要任何解释。");
+    cJSON_AddItemToArray(messages, sys_msg);
+
+    // user 消息（包含棋盘状态）
+    cJSON *user_msg = cJSON_CreateObject();
+    cJSON_AddStringToObject(user_msg, "role", "user");
+    cJSON_AddStringToObject(user_msg, "content", prompt);
+    cJSON_AddItemToArray(messages, user_msg);
+
+    // 其他参数
+    // 推理模型需要更多token（思考+输出），非推理模型够用即可
+    cJSON_AddNumberToObject(root, "temperature", 0.1);
+    cJSON_AddNumberToObject(root, "max_tokens", 512);
+
+    char *json = cJSON_PrintUnformatted(root);
+    cJSON_Delete(root);
+    return json;
+}
+
+// ==================== HTTP 请求（WinHTTP）====================
+
+#ifdef _WIN32
+
+static bool http_post_json(const char *url, const char *api_key,
+                           const char *json_body, char *response, int response_size)
+{
+    bool success = false;
+    HINTERNET hSession = NULL, hConnect = NULL, hRequest = NULL;
+
+    // 解析 URL：提取 host、path、端口、是否 HTTPS
+    WCHAR whost[256] = {0};
+    WCHAR wpath[512] = {0};
+    wchar_t wauth[256] = {0};
+    INTERNET_PORT port = INTERNET_DEFAULT_HTTPS_PORT;
+    BOOL is_https = TRUE;
+
+    // 简单解析 URL
+    const char *host_start = url;
+    const char *path_start = "/";
+    int host_len = 0;
+
+    if (strncmp(url, "https://", 8) == 0)
+    {
+        host_start = url + 8;
+        is_https = TRUE;
+        port = INTERNET_DEFAULT_HTTPS_PORT;
+    }
+    else if (strncmp(url, "http://", 7) == 0)
+    {
+        host_start = url + 7;
+        is_https = FALSE;
+        port = INTERNET_DEFAULT_HTTP_PORT;
+    }
+
+    // 找到 path 的起始位置
+    const char *p = strchr(host_start, '/');
+    if (p)
+    {
+        host_len = (int)(p - host_start);
+        path_start = p;
+    }
+    else
+    {
+        host_len = (int)strlen(host_start);
+        path_start = "/";
+    }
+
+    // 检查是否有端口号
+    const char *colon = strchr(host_start, ':');
+    if (colon && colon < host_start + host_len)
+    {
+        host_len = (int)(colon - host_start);
+        port = (INTERNET_PORT)atoi(colon + 1);
+    }
+
+    // 转换为宽字符
+    MultiByteToWideChar(CP_UTF8, 0, host_start, host_len, whost, 256);
+    MultiByteToWideChar(CP_UTF8, 0, path_start, -1, wpath, 512);
+
+    // 构造 Authorization header
+    wchar_t wapi_key[128] = {0};
+    MultiByteToWideChar(CP_UTF8, 0, api_key, -1, wapi_key, 128);
+    swprintf(wauth, 256, L"Authorization: Bearer %s", wapi_key);
+
+    // 打开 WinHTTP 会话
+    hSession = WinHttpOpen(L"Gobang/1.0", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
+                           WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0);
+    if (!hSession)
+        goto cleanup;
+
+    // 设置超时
+    WinHttpSetTimeouts(hSession, 5000, 10000, 15000, LLM_TIMEOUT_MS);
+
+    // 连接服务器
+    hConnect = WinHttpConnect(hSession, whost, port, 0);
+    if (!hConnect)
+        goto cleanup;
+
+    // 创建请求
+    hRequest = WinHttpOpenRequest(hConnect, L"POST", wpath,
+                                  NULL, WINHTTP_NO_REFERER,
+                                  WINHTTP_DEFAULT_ACCEPT_TYPES,
+                                  is_https ? WINHTTP_FLAG_SECURE : 0);
+    if (!hRequest)
+        goto cleanup;
+
+    // 添加请求头
+    WinHttpAddRequestHeaders(hRequest, wauth, -1L, WINHTTP_ADDREQ_FLAG_ADD);
+    WinHttpAddRequestHeaders(hRequest, L"Content-Type: application/json", -1L, WINHTTP_ADDREQ_FLAG_ADD);
+
+    // 发送请求
+    int body_len = (int)strlen(json_body);
+    if (!WinHttpSendRequest(hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0,
+                            (LPVOID)json_body, body_len, body_len, 0))
+        goto cleanup;
+
+    // 接收响应
+    if (!WinHttpReceiveResponse(hRequest, NULL))
+        goto cleanup;
+
+    // 读取响应体
+    {
+        int total_read = 0;
+        DWORD bytes_available = 0;
+        DWORD bytes_read = 0;
+
+        while (WinHttpQueryDataAvailable(hRequest, &bytes_available) && bytes_available > 0)
+        {
+            if (total_read + (int)bytes_available >= response_size - 1)
+                break;
+
+            WinHttpReadData(hRequest, response + total_read, bytes_available, &bytes_read);
+            total_read += bytes_read;
+            bytes_available = 0;
+        }
+        response[total_read] = '\0';
+        success = (total_read > 0);
+    }
+
+cleanup:
+    if (hRequest)
+        WinHttpCloseHandle(hRequest);
+    if (hConnect)
+        WinHttpCloseHandle(hConnect);
+    if (hSession)
+        WinHttpCloseHandle(hSession);
+    return success;
+}
+
+#else
+// 非 Windows 平台的空实现
+static bool http_post_json(const char *url, const char *api_key,
+                           const char *json_body, char *response, int response_size)
+{
+    (void)url;
+    (void)api_key;
+    (void)json_body;
+    (void)response;
+    (void)response_size;
+    return false;
+}
+#endif
+
+// ==================== 响应解析 ====================
+
+static bool parse_response(const char *response, int *out_x, int *out_y)
+{
+    cJSON *root = cJSON_Parse(response);
+    if (!root)
+    {
+        printf("[LLM] JSON解析失败\n");
+        return false;
+    }
+
+    // OpenAI 格式：choices[0].message.content
+    cJSON *choices = cJSON_GetObjectItem(root, "choices");
+    if (!choices || !cJSON_IsArray(choices))
+    {
+        // 兼容某些API的错误格式
+        cJSON *error = cJSON_GetObjectItem(root, "error");
+        if (error)
+        {
+            cJSON *msg = cJSON_GetObjectItem(error, "message");
+            if (msg && cJSON_IsString(msg))
+                printf("[LLM] API错误: %s\n", msg->valuestring);
+        }
+        cJSON_Delete(root);
+        return false;
+    }
+
+    cJSON *first = cJSON_GetArrayItem(choices, 0);
+    if (!first)
+    {
+        cJSON_Delete(root);
+        return false;
+    }
+
+    // 提取 content
+    cJSON *message = cJSON_GetObjectItem(first, "message");
+    cJSON *content = NULL;
+    if (message)
+        content = cJSON_GetObjectItem(message, "content");
+    else
+        content = cJSON_GetObjectItem(first, "text"); // 某些API直接返回text
+
+    if (!content || !cJSON_IsString(content))
+    {
+        cJSON_Delete(root);
+        return false;
+    }
+
+    printf("[LLM] 模型回复: %s\n", content->valuestring);
+    bool ok = extract_coords(content->valuestring, out_x, out_y);
+    cJSON_Delete(root);
+    return ok;
+}
+
+// ==================== 坐标提取 ====================
+
+// 跳过所有 <think>...</think> 块，返回处理后的文本（调用者需 free）
+static char *strip_think_tags(const char *text)
+{
+    int len = (int)strlen(text);
+    char *buf = (char *)malloc(len + 1);
+    if (!buf)
+        return NULL;
+
+    int out = 0;
+    const char *p = text;
+
+    while (*p)
+    {
+        const char *think_start = strstr(p, "<think>");
+        if (think_start == p)
+        {
+            // 找到 <think> 标签，跳到 </think> 之后
+            const char *think_end = strstr(p, "</think>");
+            if (think_end)
+            {
+                p = think_end + 8; // strlen("</think>")
+                continue;
+            }
+            else
+            {
+                // 没有闭合的 <think>，跳过剩余内容
+                break;
+            }
+        }
+
+        // 复制 <think> 之前的普通文本
+        int copy_len = think_start ? (int)(think_start - p) : (int)strlen(p);
+        memcpy(buf + out, p, copy_len);
+        out += copy_len;
+        p += copy_len;
+    }
+
+    buf[out] = '\0';
+    return buf;
+}
+
+// 在文本中查找最后一个 (行,列) 坐标
+static bool find_last_coord(const char *text, int *out_x, int *out_y)
+{
+    int last_x = -1, last_y = -1;
+    bool found = false;
+    const char *p = text;
+
+    while (*p)
+    {
+        if (*p == '(')
+        {
+            int x = -1, y = -1;
+            if (sscanf(p, "(%d,%d)", &x, &y) == 2 ||
+                sscanf(p, "(%d, %d)", &x, &y) == 2)
+            {
+                if (x >= 0 && x < BOARD_SIZE && y >= 0 && y < BOARD_SIZE)
+                {
+                    last_x = x;
+                    last_y = y;
+                    found = true;
+                }
+            }
+        }
+        p++;
+    }
+
+    if (found)
+    {
+        *out_x = last_x;
+        *out_y = last_y;
+    }
+    return found;
+}
+
+static bool extract_coords(const char *text, int *out_x, int *out_y)
+{
+    // 第一步：去掉 <think>...</think>，从回复正文中提取
+    char *clean = strip_think_tags(text);
+    if (clean)
+    {
+        // 跳过空白字符
+        const char *p = clean;
+        while (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t')
+            p++;
+
+        if (*p && find_last_coord(p, out_x, out_y))
+        {
+            free(clean);
+            return true;
+        }
+        free(clean);
+    }
+
+    // 第二步（兜底）：从完整文本（含推理）中提取最后一个坐标
+    // 推理模型可能把最终答案写在 <think> 标签里
+    return find_last_coord(text, out_x, out_y);
+}
@@ -17,12 +17,18 @@
 /**
 * @brief 初始化网络模块
 */
+static bool enet_initialized = false;
+
 bool init_network()
 {
-    if (enet_initialize() != 0)
+    if (!enet_initialized)
    {
-        printf("An error occurred while initializing ENet.\n");
-        return false;
+        if (enet_initialize() != 0)
+        {
+            printf("An error occurred while initializing ENet.\n");
+            return false;
+        }
+        enet_initialized = true;
    }

    memset(&network_state, 0, sizeof(NetworkGameState));
@@ -44,8 +50,13 @@ void cleanup_network()
        network_state.host = NULL;
    }

-    enet_deinitialize();
-    network_state.is_connected = false;
+    if (enet_initialized)
+    {
+        enet_deinitialize();
+        enet_initialized = false;
+    }
+
+    memset(&network_state, 0, sizeof(NetworkGameState));
 }

 /**
@@ -53,6 +64,9 @@ void cleanup_network()
 */
 bool create_server(int port)
 {
+    if (!init_network())
+        return false;
+
    ENetAddress address;

    // 绑定所有接口
@@ -117,6 +131,9 @@ bool create_server(int port)
 */
 bool connect_to_server(const char *ip, int port)
 {
+    if (!init_network())
+        return false;
+
    // 创建客户端主机
    network_state.host = (void *)enet_host_create(NULL, // 创建客户端
                                                  1,    // 仅允许1个传出连接
@@ -286,17 +303,54 @@ bool is_network_connected()
 }

 /**
- * @brief 获取本机IP地址
+ * @brief 获取本机局域网IP地址
 */
 bool get_local_ip(char *ip_buffer, int buffer_size)
 {
-    // ENet 没有直接获取本机局域网 IP 的简单跨平台函数。
-    // 这里我们可以回退到原生 socket 方法，或者简单返回本地回环。
-    // 为了不引入额外的系统头文件，暂时返回通用提示。
-    // 在真实应用中，可以保留之前的 gethostname/gethostbyname 逻辑。
-    strncpy(ip_buffer, "查看本机网络适配器", buffer_size - 1);
+#ifdef _WIN32
+    // 使用 Winsock 获取本机 IP（ws2_32 已链接）
+    char hostname[256];
+    if (gethostname(hostname, sizeof(hostname)) == SOCKET_ERROR)
+    {
+        strncpy(ip_buffer, "127.0.0.1", buffer_size - 1);
+        ip_buffer[buffer_size - 1] = '\0';
+        return false;
+    }
+
+    struct hostent *host = gethostbyname(hostname);
+    if (host == NULL || host->h_addr_list[0] == NULL)
+    {
+        strncpy(ip_buffer, "127.0.0.1", buffer_size - 1);
+        ip_buffer[buffer_size - 1] = '\0';
+        return false;
+    }
+
+    // 遍历所有地址，找一个非回环的 IPv4 地址
+    for (int i = 0; host->h_addr_list[i] != NULL; i++)
+    {
+        struct in_addr addr;
+        memcpy(&addr, host->h_addr_list[i], sizeof(struct in_addr));
+        const char *ip = inet_ntoa(addr);
+        if (ip && strcmp(ip, "127.0.0.1") != 0)
+        {
+            strncpy(ip_buffer, ip, buffer_size - 1);
+            ip_buffer[buffer_size - 1] = '\0';
+            return true;
+        }
+    }
+
+    // 没找到非回环地址，返回第一个
+    struct in_addr addr;
+    memcpy(&addr, host->h_addr_list[0], sizeof(struct in_addr));
+    const char *ip = inet_ntoa(addr);
+    strncpy(ip_buffer, ip ? ip : "127.0.0.1", buffer_size - 1);
    ip_buffer[buffer_size - 1] = '\0';
-    return true; // 总是返回 true 以允许服务器继续启动
+    return true;
+#else
+    strncpy(ip_buffer, "127.0.0.1", buffer_size - 1);
+    ip_buffer[buffer_size - 1] = '\0';
+    return true;
+#endif
 }

 /**
@@ -261,7 +261,7 @@ int load_game_from_file(const char *filename)
    FILE *file = fopen(fullpath, "r");
    if (!file)
    {
-        return false;
+        return 0;
    }

    // 跳过CSV文件头部行