feature(custom_command): add areacontrol command

feature(areacontrol):
- cubic detection
- auto-change player gamemode

docs/areacontrol.md

@@ -0,0 +1,168 @@
+# AreaControl 脚本 MDocs
+
+## 1. 概述
+
+**AreaControl** 是一个为 Minecraft 服务器设计的强大区域管理工具，通过 KubeJS 实现。它允许管理员在游戏世界中定义一个特殊区域，并对进入该区域的玩家施加特定的规则，例如自动切换游戏模式、限制物品使用等。
+
+该脚本的核心设计理念是 **高性能** 与 **易用性**。它采用事件驱动和多种优化技术，确保在不牺牲服务器性能的前提下，提供稳定可靠的功能。本文档将为您提供从安装、使用到二次开发的全方位指南。
+
+---
+
+## 2. 功能特性
+
+- **自动模式切换**：玩家进入指定区域时，自动切换为**冒险**或**旁观**模式；离开时恢复为**生存**模式。
+- **动态白名单**：所有功能仅对白名单内的玩家生效，管理员可通过命令随时增删玩家。
+- **物品冷却系统**：可以为区域内的玩家设置统一的物品使用冷却时间。
+- **实时启/禁用**：管理员可通过一条简单命令，在不重启服务器的情况下，全局启用或禁用所有功能。
+- **二维平面检测**：区域检测仅基于水平坐标（X 和 Z 轴），忽略玩家的高度（Y 轴），适用于各种地形。
+- **高性能设计**：基于事件驱动，无不必要的循环（tick-polling），确保对服务器的性能影响降至最低。
+- **配置持久化**：所有配置（如区域中心、半径、白名单）都会自动保存，服务器重启后无需重新设置。
+
+---
+
+## 3. 用户指南
+
+本节面向服务器管理员和普通用户，指导您如何安装和使用 AreaControl。
+
+### 3.1. 安装
+
+1.  确保您的 Minecraft 服务器已经正确安装了 KubeJS Mod。
+2.  将编译后的 `areacontrol.js` 脚本文件放置在服务器的 `kubejs/server_scripts/` 目录下。
+3.  重新启动服务器或在游戏内执行 `/kubejs reload server_scripts`。
+
+脚本加载后将自动初始化，默认在世界中心 `(0, 0)` 创建一个半径为 `50` 格的区域。
+
+### 3.2. 管理命令
+
+您可以在游戏内通过 `areacontrol` 系列命令来管理脚本。所有命令都需要管理员权限。
+
+*   `/areacontrol status`：查看脚本当前配置。
+*   `/areacontrol toggle`：全局启用或禁用功能。
+*   `/areacontrol setcenter`：将当前位置设为区域中心。
+*   `/areacontrol setradius <半径>`：设置区域半径。
+*   `/areacontrol whitelist <add|remove|list> [玩家名]`：管理白名单。
+
+---
+
+## 4. 开发者参考：技术与定制
+
+本节面向希望理解其工作原理或进行二次开发的开发者。
+
+### 4.1. 开发环境与构建
+
+本项目使用 **TypeScript** 编写，以获得更强的类型安全和代码可维护性。
+
+-   **源码目录**：所有服务器端脚本的 TypeScript 源文件位于 `src/server_scripts/` 目录下。
+-   **编译**：在发布或测试前，需要将 TypeScript (`.ts`) 文件编译为 KubeJS 可识别的 JavaScript (`.js`) 文件。
+    -   **单次编译**：执行 `npm run tsc` 或 `npx tsc --project tsconfig.server.json`。
+    -   **监视模式**：在开发过程中，建议使用监视模式，它会在文件发生变化时自动重新编译。执行 `npm run watch::server` 即可。
+-   **类型定义**：项目依赖于 KubeJS Probe 生成的类型定义，位于 `types/probe-types/` 目录，这为开发提供了完整的代码提示和类型检查。
+
+### 4.2. 设计理念
+
+#### 事件驱动架构
+脚本不使用高开销的 `tick` 轮询，而是监听特定玩家事件来触发逻辑。
+-   `PlayerEvents.loggedIn`: 玩家登录时加入检查。
+-   `PlayerEvents.loggedOut`: 玩家登出时清理其缓存数据。
+-   `PlayerEvents.tick`: **降频使用**，每秒检查一次玩家位置。
+-   `ItemEvents.use`: 在玩家使用物品时触发冷却逻辑。
+
+```typescript
+// 示例：利用类型定义，精确捕获事件和玩家对象
+ItemEvents.use((event: Internal.ItemUseEvent) => {
+    const { player } = event;
+    if (player && shouldApplyCooldown(player)) {
+        // ...
+    }
+});
+```
+
+#### 分层与状态缓存
+为避免不必要的操作，脚本采用分层检查和状态缓存。
+
+1.  **一级过滤**：检查脚本是否启用、玩家是否在白名单内。
+2.  **二级检查（降频）**：每秒检查一次玩家是否在区域内。
+3.  **三级处理（状态驱动）**：仅当玩家**跨越区域边界**时，才执行核心操作并更新缓存。
+
+```typescript
+// playerStates 缓存玩家的当前状态，并提供类型安全
+const playerStates = new Map<string, { inArea: boolean }>();
+
+function optimizedPlayerCheck(player: Internal.Player): void {
+    const currentState = playerStates.get(player.uuid) ?? { inArea: false };
+    const isInArea = isPlayerInArea(player);
+
+    if (currentState.inArea !== isInArea) {
+        handleGameModeChange(player, isInArea);
+        playerStates.set(player.uuid, { inArea: isInArea });
+    }
+}
+```
+
+### 4.3. 核心算法
+
+#### 快速边界检测
+脚本通过**预计算**区域的边界框（Bounding Box）来实现高效的位置判断。
+
+```typescript
+// 1. 初始化时预计算边界
+function updateBounds(center: Internal.Vec3i, radius: number): void {
+    bounds.minX = center.x - radius;
+    bounds.maxX = center.x + radius;
+    bounds.minZ = center.z - radius;
+    bounds.maxZ = center.z + radius;
+}
+
+// 2. 运行时进行高效比较
+function isPlayerInArea(player: Internal.Player): boolean {
+    const pos = player.blockPosition();
+    return pos.x >= bounds.minX && pos.x <= bounds.maxX &&
+           pos.z >= bounds.minZ && pos.z <= bounds.maxZ;
+}
+```
+
+#### 内存自动清理
+通过监听 `PlayerEvents.loggedOut` 事件，自动从 `playerStates` 缓存中删除下线玩家的数据，防止内存泄漏。
+
+### 4.4. 数据结构
+
+我们使用 TypeScript 的 `interface` 来定义核心数据结构，确保类型安全。
+
+#### 配置 (AreaControlConfig)
+```typescript
+interface AreaControlConfig {
+    enabled: boolean;
+    center: { x: number; y: number; z: number };
+    radius: number;
+    whitelist: string[];
+    mode: 'adventure' | 'spectator';
+    cooldownTime: number; // In ticks
+}
+```
+
+#### 缓存 (PlayerState)
+```typescript
+interface PlayerState {
+    inArea: boolean;
+}
+
+// 最终的缓存结构
+const playerStates: Map<string, PlayerState>; // Key: Player UUID
+```
+
+### 4.5. 定制化
+
+#### 调整检查频率
+默认检查频率是每秒一次（`20 ticks`）。您可以根据服务器需求调整此值。
+
+```typescript
+// 在 PlayerEvents.tick 监听器中调整
+PlayerEvents.tick((event: Internal.PlayerTickEvent) => {
+    const player = event.player;
+    // 将 20 修改为您希望的检查间隔（ticks）
+    if (player.age % 20 === 0) {
+        optimizedPlayerCheck(player);
+    }
+});
+```
+-   **建议值**：`10`（半秒一次，响应快），`40`（两秒一次，开销低）。不建议低于 `10`。

src/server_scripts/areacontrol.js

@@ -0,0 +1,705 @@
+// AreaControl - Advanced Area Management System for KubeJS
+// Event-driven architecture with high performance optimization
+
+// ==================== TYPE DEFINITIONS ====================
+
+/**
+ * @typedef {object} AreaControlConfig
+ * @property {boolean} enabled
+ * @property {{x: number, y: number, z: number}} center
+ * @property {number} radius
+ * @property {string[]} whitelist
+ * @property {"adventure" | "spectator"} mode
+ * @property {number} cooldownSecs
+ */
+
+/**
+ * @typedef {object} AreaBounds
+ * @property {number} minX
+ * @property {number} maxX
+ * @property {number} minZ
+ * @property {number} maxZ
+ */
+
+/**
+ * @typedef {typeof Internal.HashMap} HashMap
+ */
+
+// ==================== GLOBAL CONSTANTS ====================
+
+const SECOND_TICKS = 20;
+const CONFIG_FILE = "areacontrol_config.json";
+const CHECK_FREQUENCY = 20; // ticks (1 second)
+
+// ==================== STATE MANAGEMENT ====================
+
+/**
+ * Default configuration
+ * @type {AreaControlConfig}
+ */
+let config = {
+    enabled: true,
+    center: { x: 0, y: 0, z: 0 },
+    radius: 5,
+    whitelist: [],
+    mode: "adventure",
+    cooldownSecs: 10 * SECOND_TICKS, // 60 seconds
+};
+
+/**
+ * Pre-calculated bounds for O(1) area checking
+ * @type {AreaBounds}
+ */
+const bounds = {
+    minX: -50,
+    maxX: 50,
+    minZ: -50,
+    maxZ: 50,
+};
+
+/**
+ * Player state cache - prevents unnecessary operations
+ * @type {{[key: string]: boolean | undefined}}
+ */
+const playerStates = {};
+
+/**
+ * Item cooldown tracking
+ * @type {{[key: string]: number | undefined}}
+ */
+const playerCooldowns = {};
+
+// ==================== UTILITY FUNCTIONS ====================
+
+/**
+ * Update area bounds based on center and radius
+ * Pre-calculates boundaries for efficient checking
+ * @param {{x: number, y: number, z: number}} center
+ * @param {number} radius
+ * @returns {void}
+ */
+function updateBounds(center, radius) {
+    bounds.minX = center.x - radius;
+    bounds.maxX = center.x + radius;
+    bounds.minZ = center.z - radius;
+    bounds.maxZ = center.z + radius;
+
+    console.log(
+        `[AreaControl] Updated bounds: X(${String(bounds.minX)} to ${String(bounds.maxX)}), Z(${String(bounds.minZ)} to ${String(bounds.maxZ)})`,
+    );
+}
+
+/**
+ * Fast 2D area boundary check (ignores Y coordinate)
+ * Uses pre-calculated bounds for O(1) performance
+ * @param {number} x
+ * @param {number} z
+ * @returns {boolean}
+ */
+function isPositionInArea(x, z) {
+    return (
+        x >= bounds.minX &&
+        x <= bounds.maxX &&
+        z >= bounds.minZ &&
+        z <= bounds.maxZ
+    );
+}
+
+/**
+ * Check if player is whitelisted for area control
+ * @param {string} playerName
+ * @returns {boolean}
+ */
+function isPlayerWhitelisted(playerName) {
+    return config.whitelist.indexOf(playerName) !== -1;
+}
+
+/**
+ * Handle player entering the protected area
+ * @param {Internal.Player} player
+ * @returns {void}
+ */
+function handlePlayerEnterArea(player) {
+    // Apply configured game mode
+    if (config.mode === "adventure") {
+        Utils.getServer().getPlayer(player.stringUuid).setGameMode("adventure");
+    } else {
+        Utils.getServer().getPlayer(player.stringUuid).setGameMode("spectator");
+    }
+
+    // Send notification
+    player.tell(
+        /** @type {any} */ (
+            Component.string(
+                "§6[AreaControl] §eEntered protected area. Game mode changed.",
+            )
+        ),
+    );
+}
+
+/**
+ * Handle player leaving the protected area
+ * @param {Internal.Player} player
+ * @returns {void}
+ */
+function handlePlayerLeaveArea(player) {
+    // Restore survival mode
+    Utils.getServer().getPlayer(player.stringUuid).setGameMode("survival");
+
+    // Send notification
+    player.tell(
+        /** @type {any} */ (
+            Component.string(
+                "§6[AreaControl] §eLeft protected area. Game mode restored.",
+            )
+        ),
+    );
+}
+
+/**
+ * Optimized player area check with state caching
+ * Only triggers changes when crossing area boundaries
+ * @param {Internal.Player} player
+ * @returns {void}
+ */
+function checkPlayerAreaStatus(player) {
+    if (!config.enabled || !isPlayerWhitelisted(player.username)) {
+        return;
+    }
+
+    const pos = player.blockPosition();
+    const isCurrentlyInArea = isPositionInArea(pos.x, pos.z);
+    const playerId = player.stringUuid;
+    const cachedState = playerStates[playerId];
+
+    // Only process if state changed or first check
+    if (cachedState !== isCurrentlyInArea) {
+        if (isCurrentlyInArea) {
+            handlePlayerEnterArea(player);
+        } else if (cachedState === true) {
+            // Only trigger leave if we were previously in area
+            handlePlayerLeaveArea(player);
+        }
+
+        // Update cached state
+        playerStates[playerId] = isCurrentlyInArea;
+    }
+}
+
+/**
+ * Check if item cooldown should be applied
+ * @param {Internal.Player} player
+ * @returns {boolean}
+ */
+function shouldApplyItemCooldown(player) {
+    if (!config.enabled || !isPlayerWhitelisted(player.username)) {
+        return false;
+    }
+
+    const playerState = playerStates[player.stringUuid];
+    return playerState === undefined || playerState === true;
+}
+
+/**
+ * Save configuration to persistent storage
+ * @returns {void}
+ */
+function saveConfiguration() {
+    const server = Utils.server;
+    try {
+        // Use KubeJS persistent data instead of JsonIO
+        if (server.persistentData.contains(CONFIG_FILE)) {
+            server.persistentData.put(CONFIG_FILE, NBT.toTag(config));
+            console.log("[AreaControl] Configuration saved successfully");
+        }
+    } catch (error) {
+        console.warn(`[AreaControl] Failed to save configuration:${error}`);
+    }
+}
+
+/**
+ * Load configuration from persistent storage
+ * @returns {void}
+ */
+function loadConfiguration() {
+    const server = Utils.server;
+    try {
+        if (server.persistentData.contains(CONFIG_FILE)) {
+            const savedData = server.persistentData.get(CONFIG_FILE);
+            if (typeof savedData === "string") {
+                const loadedConfig = JSON.parse(savedData);
+                config = Object.assign(config, loadedConfig);
+                updateBounds(config.center, config.radius);
+                console.log("[AreaControl] Configuration loaded from file");
+            } else {
+                updateBounds(config.center, config.radius);
+                saveConfiguration(); // Create initial config
+                console.log("[AreaControl] Created default configuration");
+            }
+        }
+    } catch (error) {
+        console.warn(
+            `[AreaControl] Failed to load configuration, using defaults: ${error}`,
+        );
+        updateBounds(config.center, config.radius);
+    }
+}
+
+/**
+ * Register all event handlers
+ * @returns {void}
+ */
+function registerEventHandlers() {
+    /**
+     * @param {Internal.PlayerEvent.LoggedIn} event
+     */
+    PlayerEvents.loggedIn((event) => {
+        const { player } = event;
+
+        const pos = player.blockPosition();
+        const isInArea = isPositionInArea(pos.x, pos.z);
+
+        playerStates[player.stringUuid] = isInArea;
+
+        // Apply immediate game mode if in area
+        if (isInArea && config.enabled) {
+            handlePlayerEnterArea(player);
+        }
+
+        console.log(
+            `[AreaControl] Player ${player.username} logged in, in area: ${String(isInArea)}`,
+        );
+    });
+
+    /**
+     * @param {Internal.PlayerEvent.LoggedOut} event
+     */
+    PlayerEvents.loggedOut((event) => {
+        const { player } = event;
+        const playerId = player.stringUuid;
+
+        delete playerStates[playerId];
+        delete playerCooldowns[playerId];
+
+        console.log(
+            `[AreaControl] Cleaned up data for player ${player.username}`,
+        );
+    });
+
+    /**
+     * @param {Internal.PlayerEvent.Tick} event
+     */
+    PlayerEvents.tick((event) => {
+        const { player } = event;
+
+        // Check every CHECK_FREQUENCY ticks for performance
+        if (player.age % CHECK_FREQUENCY === 0) {
+            checkPlayerAreaStatus(player);
+        }
+    });
+
+    /**
+     * @param {Internal.LivingEntityUseItemEvent$Finish} event
+     */
+    // ForgeEvents.onEvent(
+    //     "net.minecraftforge.event.entity.living.LivingEntityUseItemEvent$Finish",
+    //     (event) => {
+    //         const { item: itemStack, entity } = event;
+    //         if (!entity.isPlayer()) return;
+    //         const player = Utils.server.getPlayer(entity.stringUuid);
+    //         if (player === undefined || player === null) return;
+
+    //         const item = itemStack.getItem();
+    //         const itemsCooldowns = player.getCooldowns();
+
+    //         if (
+    //             shouldApplyItemCooldown(player) &&
+    //             !itemsCooldowns.isOnCooldown(item)
+    //         ) {
+    //             itemsCooldowns.addCooldown(item, config.cooldownSecs);
+    //         }
+    //     },
+    // );
+}
+
+/**
+ * Register command system
+ * @returns {void}
+ */
+function registerCommands() {
+    /**
+     * @param {Internal.ServerCommandEvent} event
+     */
+    ServerEvents.commandRegistry((event) => {
+        const { commands, arguments: Arguments } = event;
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const statusCommand = (ctx) => {
+            const source = ctx.source;
+            source.sendSuccess("§6[AreaControl] Current Status:", false);
+            source.sendSuccess(`§e- Enabled: ${String(config.enabled)}`, false);
+            source.sendSuccess(
+                `§e- Center: (${String(config.center.x)}, ${String(config.center.y)}, ${String(config.center.z)})`,
+                false,
+            );
+            source.sendSuccess(`§e- Radius: ${String(config.radius)}`, false);
+            source.sendSuccess(`§e- Mode: ${config.mode}`, false);
+            source.sendSuccess(
+                `§e- Whitelist: ${String(config.whitelist.length)} players`,
+                false,
+            );
+            source.sendSuccess(
+                `§e- Cooldown: ${String(config.cooldownSecs)} Ticks (${String(config.cooldownSecs / SECOND_TICKS)}s)`,
+                false,
+            );
+            source.sendSuccess(
+                `§e- Active players: ${String(Object.keys(playerStates).length)}`,
+                false,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const toggleCommand = (ctx) => {
+            config.enabled = !config.enabled;
+            saveConfiguration();
+            ctx.source.sendSuccess(
+                config.enabled
+                    ? "§6[AreaControl] §aEnabled"
+                    : "§6[AreaControl] §cDisabled",
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const setCenterCommand = (ctx) => {
+            const source = ctx.source;
+            if (!source.player) {
+                source.sendFailure("§cThis command must be run by a player");
+                return 0;
+            }
+            const pos = source.player.blockPosition();
+            config.center = { x: pos.x, y: pos.y, z: pos.z };
+            updateBounds(config.center, config.radius);
+            saveConfiguration();
+            source.sendSuccess(
+                `§6[AreaControl] §eCenter set to (${String(pos.x)}, ${String(pos.y)}, ${String(pos.z)})`,
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const setRadiusCommand = (ctx) => {
+            const radius = Arguments.INTEGER.getResult(ctx, "radius");
+            if (radius < 1 || radius > 1000) {
+                ctx.source.sendFailure("§cRadius must be between 1 and 1000");
+                return 0;
+            }
+            config.radius = radius;
+            updateBounds(config.center, config.radius);
+            saveConfiguration();
+            ctx.source.sendSuccess(
+                `§6[AreaControl] §eRadius set to ${String(radius)}`,
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const setModeCommand = (ctx) => {
+            const mode = Arguments.STRING.getResult(ctx, "mode");
+            if (mode !== "adventure" && mode !== "spectator") {
+                ctx.source.sendFailure(
+                    '§cMode must be either "adventure" or "spectator"',
+                );
+                return 0;
+            }
+            config.mode = mode;
+            saveConfiguration();
+            ctx.source.sendSuccess(
+                `§6[AreaControl] §eArea mode set to ${mode}`,
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const setCooldownCommand = (ctx) => {
+            const cooldown = Arguments.INTEGER.getResult(ctx, "cooldown");
+            if (cooldown < 0) {
+                ctx.source.sendFailure(
+                    "§cCooldown must be a non-negative number",
+                );
+                return 0;
+            }
+            config.cooldownSecs = cooldown;
+            saveConfiguration();
+            ctx.source.sendSuccess(
+                `§6[AreaControl] §eItem cooldown set to ${String(cooldown)} ticks (${String(cooldown / 20)}s)`,
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const whitelistAddCommand = (ctx) => {
+            const playerName = Arguments.STRING.getResult(ctx, "player");
+            if (config.whitelist.indexOf(playerName) === -1) {
+                config.whitelist.push(playerName);
+                saveConfiguration();
+                ctx.source.sendSuccess(
+                    `§6[AreaControl] §eAdded ${playerName} to whitelist`,
+                    true,
+                );
+            } else {
+                ctx.source.sendFailure(
+                    `§c${playerName} is already whitelisted`,
+                );
+            }
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const whitelistRemoveCommand = (ctx) => {
+            const playerName = Arguments.STRING.getResult(ctx, "player");
+            const index = config.whitelist.indexOf(playerName);
+            if (index !== -1) {
+                config.whitelist.splice(index, 1);
+                // Clean up player state if they're removed
+                const server = ctx.source.server;
+                const onlinePlayer = server.players.find(
+                    /**
+                     * @param {Internal.Player} p
+                     * @returns {boolean}
+                     */
+                    (p) => p.username === playerName,
+                );
+                if (onlinePlayer) {
+                    delete playerStates[onlinePlayer.stringUUID];
+                    delete playerCooldowns[onlinePlayer.stringUUID];
+                }
+                saveConfiguration();
+                ctx.source.sendSuccess(
+                    `§6[AreaControl] §eRemoved ${playerName} from whitelist`,
+                    true,
+                );
+            } else {
+                ctx.source.sendFailure(`§c${playerName} is not whitelisted`);
+            }
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const whitelistListCommand = (ctx) => {
+            const source = ctx.source;
+            if (config.whitelist.length === 0) {
+                source.sendSuccess(
+                    "§6[AreaControl] §eWhitelist is empty",
+                    false,
+                );
+            } else {
+                source.sendSuccess(
+                    "§6[AreaControl] §eWhitelisted players:",
+                    false,
+                );
+                config.whitelist.forEach((playerName) => {
+                    source.sendSuccess(`§e- ${playerName}`, false);
+                });
+            }
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const reloadCommand = (ctx) => {
+            loadConfiguration();
+            ctx.source.sendSuccess(
+                "§6[AreaControl] §aConfiguration reloaded",
+                true,
+            );
+            return 1;
+        };
+
+        /**
+         * @param {any} ctx
+         * @returns {number}
+         */
+        const helpCommand = (ctx) => {
+            const source = ctx.source;
+            source.sendFailure("§cAvailable commands:");
+            source.sendFailure(
+                "§e- /areacontrol status - Show current configuration",
+            );
+            source.sendFailure(
+                "§e- /areacontrol toggle - Enable/disable the system",
+            );
+            source.sendFailure(
+                "§e- /areacontrol setcenter - Set area center to current position",
+            );
+            source.sendFailure(
+                "§e- /areacontrol setradius <radius> - Set area radius",
+            );
+            source.sendFailure(
+                "§e- /areacontrol setmode <adventure|spectator> - Set area game mode",
+            );
+            source.sendFailure(
+                "§e- /areacontrol setcooldown <ticks> - Set item cooldown",
+            );
+            source.sendFailure(
+                "§e- /areacontrol whitelist <add|remove|list> [player] - Manage whitelist",
+            );
+            source.sendFailure(
+                "§e- /areacontrol reload - Reload configuration",
+            );
+            return 1;
+        };
+
+        // Register the main command with all subcommands
+        event.register(
+            commands
+                .literal("areacontrol")
+                .requires((source) => source.hasPermission(2))
+                .executes(statusCommand) // Default to status when no args
+                .then(commands.literal("status").executes(statusCommand))
+                .then(commands.literal("toggle").executes(toggleCommand))
+                .then(commands.literal("setcenter").executes(setCenterCommand))
+                .then(
+                    commands
+                        .literal("setradius")
+                        .then(
+                            commands
+                                .argument(
+                                    "radius",
+                                    Arguments.INTEGER.create(event),
+                                )
+                                .executes(setRadiusCommand),
+                        ),
+                )
+                .then(
+                    commands
+                        .literal("setmode")
+                        .then(
+                            commands
+                                .argument(
+                                    "mode",
+                                    Arguments.STRING.create(event),
+                                )
+                                .executes(setModeCommand),
+                        ),
+                )
+                .then(
+                    commands
+                        .literal("setcooldown")
+                        .then(
+                            commands
+                                .argument(
+                                    "cooldown",
+                                    Arguments.INTEGER.create(event),
+                                )
+                                .executes(setCooldownCommand),
+                        ),
+                )
+                .then(
+                    commands
+                        .literal("whitelist")
+                        .then(
+                            commands
+                                .literal("add")
+                                .then(
+                                    commands
+                                        .argument(
+                                            "player",
+                                            Arguments.STRING.create(event),
+                                        )
+                                        .executes(whitelistAddCommand),
+                                ),
+                        )
+                        .then(
+                            commands
+                                .literal("remove")
+                                .then(
+                                    commands
+                                        .argument(
+                                            "player",
+                                            Arguments.STRING.create(event),
+                                        )
+                                        .executes(whitelistRemoveCommand),
+                                ),
+                        )
+                        .then(
+                            commands
+                                .literal("list")
+                                .executes(whitelistListCommand),
+                        ),
+                )
+                .then(commands.literal("reload").executes(reloadCommand))
+                .then(commands.literal("help").executes(helpCommand)),
+        );
+    });
+}
+
+// ==================== INITIALIZATION ====================
+
+/**
+ * Initialize the AreaControl system
+ * @returns {void}
+ */
+function initializeAreaControl() {
+    console.log("[AreaControl] Initializing area control system...");
+
+    // Load configuration
+    loadConfiguration();
+
+    // Register event handlers
+    registerEventHandlers();
+
+    // Register commands
+    registerCommands();
+
+    console.log("[AreaControl] System initialized successfully");
+    console.log(
+        `[AreaControl] Area: center(${String(config.center.x)}, ${String(config.center.z)}), radius: ${String(config.radius)}`,
+    );
+    console.log(
+        `[AreaControl] Mode: ${config.mode}, Enabled: ${String(config.enabled)}`,
+    );
+    console.log(
+        `[AreaControl] Whitelisted players: ${String(config.whitelist.length)}`,
+    );
+}
+
+// ==================== STARTUP EXECUTION ====================
+
+// Initialize the system when script loads
+initializeAreaControl();