tanqiu/assets/scripts/CombatSystem/BallController.ts

import { _decorator, Component, Node, Vec2, Vec3, UITransform, Collider2D, Contact2DType, IPhysics2DContact, RigidBody2D, Prefab, instantiate, find, CircleCollider2D, JsonAsset, ERigidBody2DType } from 'cc';
import { PhysicsManager } from '../Core/PhysicsManager';
import { WeaponBullet, BulletInitData } from './WeaponBullet';
import { WeaponConfig } from '../Core/ConfigManager';
import EventBus, { GameEvents } from '../Core/EventBus';
import { PersistentSkillManager } from '../FourUI/SkillSystem/PersistentSkillManager';
import { BallControllerConfig } from '../Core/ConfigManager';
import { WeaponInfo } from './BlockSelection/WeaponInfo';
import { BlockInfo } from './BlockSelection/BlockInfo';
import { BallAni } from '../Animations/BallAni';
import { JsonConfigLoader } from '../Core/JsonConfigLoader';
const { ccclass, property } = _decorator;

@ccclass('BallController')
export class BallController extends Component {
    // 球的预制体
    @property({
        type: Prefab,
        tooltip: '拖拽Ball预制体到这里'
    })
    public ballPrefab: Prefab = null;

    // 已放置方块容器节点
    @property({
        type: Node,
        tooltip: '拖拽PlacedBlocks节点到这里（Canvas/GameLevelUI/GameArea/PlacedBlocks）'
    })
    public placedBlocksContainer: Node = null;

    // 球控制器配置文件
    // @property({
    //     type: JsonAsset,
    //     tooltip: '拖拽ballController.json配置文件到这里'
    // })
    // public ballControllerConfig: JsonAsset = null;  // 已改为动态加载

    // 球的移动速度（从配置文件加载）
    public baseSpeed: number = 60; 
    public currentSpeed: number = 60;
    
    // 反弹随机偏移最大角度（弧度）（从配置文件加载）
    public maxReflectionRandomness: number = 0.2;
    
    // 当前活动的球
    private activeBall: Node = null;

    // 球的方向向量
    private direction: Vec2 = new Vec2();
    
    // GameArea区域边界
    private gameBounds = {
        left: 0,
        right: 0,
        top: 0,
        bottom: 0
    };

    // 球的半径
    private radius: number = 0;

    // 配置数据
    private config: BallControllerConfig = null;

    // 是否已初始化
    private initialized: boolean = false;
    
    // 子弹预制体
    @property({
        type: Prefab,
        tooltip: '拖拽子弹预制体到这里'
    })
    public bulletPrefab: Prefab = null;

    // 小球是否已开始运动
    private ballStarted: boolean = false;

    // 小球暂停时记录的速度
    private pausedVelocity: Vec2 = new Vec2();

    // 所有小球暂停时记录的速度（包括主球和额外球）
    private allBallsPausedVelocities: Map<Node, Vec2> = new Map();

    // 标记是否处于暂停状态
    private isPaused: boolean = false;

    // 在类字段区添加
    private blockFireCooldown: Map<string, number> = new Map();
    private FIRE_COOLDOWN = 0.05;

    // 防围困机制配置（从配置文件加载）
    public antiTrapTimeWindow: number = 5.0;
    public antiTrapHitThreshold: number = 5;
    public deflectionAttemptThreshold: number = 3;
    public antiTrapDeflectionMultiplier: number = 3.0;
    
    // 增强防围困机制配置
    @property({
        tooltip: '振荡检测时间窗口（秒）：检测小球往复运动的时间范围'
    })
    public oscillationTimeWindow: number = 3.0;
    
    @property({
        tooltip: '方向改变阈值：触发振荡检测的方向改变次数'
    })
    public directionChangeThreshold: number = 4;
    
    @property({
        tooltip: '位置历史记录数量：用于检测往复运动的位置样本数'
    })
    public positionHistorySize: number = 20;
    
    @property({
        tooltip: '振荡距离阈值：判定为往复运动的最小距离范围'
    })
    public oscillationDistanceThreshold: number = 100;
    
    // 测试模式开关
    @property({
        tooltip: '启用测试模式：小球只会向上/下/左/右四个基本方向移动，便于测试防围困机制'
    })
    public testMode: boolean = true;

    // 小球位置检查配置
    @property({
        tooltip: '启用小球位置检查：定期检查小球是否在游戏区域内，如果不在则找回'
    })
    public enableBallPositionCheck: boolean = true;
    
    @property({
        tooltip: '位置检查间隔（秒）：多久检查一次小球位置'
    })
    public positionCheckInterval: number = 2.0;
    
    @property({
        tooltip: '位置检查边界扩展（像素）：检查边界比游戏区域稍大，避免误判'
    })
    public positionCheckBoundaryExtension: number = 50;

    // 防围困机制状态
    private ballHitHistory: Map<string, number[]> = new Map(); // 记录每个球的撞击时间历史
    private ballPhaseThrough: Map<string, number> = new Map(); // 记录每个球的穿透结束时间
    private ballDeflectionAttempts: Map<string, number> = new Map(); // 记录每个球的偏移尝试次数
    
    // 增强防围困机制：运动模式检测
    private ballPositionHistory: Map<string, Vec2[]> = new Map(); // 记录小球位置历史
    private ballDirectionHistory: Map<string, Vec2[]> = new Map(); // 记录小球方向历史
    private ballOscillationDetection: Map<string, {
        lastDirectionChange: number,
        directionChangeCount: number,
        oscillationAxis: 'horizontal' | 'vertical' | 'none',
        oscillationStartTime: number
    }> = new Map(); // 振荡检测数据

    // 带尾部特效的子弹容器预制体
    @property({
        type: Prefab,
        tooltip: '拖拽带尾部特效的子弹容器预制体到这里（例如 PelletContainer）'
    })
    public bulletContainerPrefab: Prefab = null;



    // 正在被拖拽的方块集合
    private draggingBlocks: Set<Node> = new Set();

    // 小球位置检查相关变量
    private lastPositionCheckTime: number = 0; // 上次位置检查的时间

    async start() {
        // 如果没有指定placedBlocksContainer，尝试找到它
        if (!this.placedBlocksContainer) {
            this.placedBlocksContainer = find('Canvas/GameLevelUI/GameArea/PlacedBlocks');
            if (!this.placedBlocksContainer) {
                // 找不到PlacedBlocks节点，某些功能可能无法正常工作
            }
        }
        

        
        // 加载配置
        await this.loadConfig();
        
        // 只进行初始设置，不创建小球
        this.calculateGameBounds();

        // 监听游戏事件
        this.setupEventListeners();
        
        // 监听球速技能变化并更新球速
        this.updateBallSpeed();
    }



    /**
     * 设置事件监听器
     */

    // 加载配置
    private async loadConfig(): Promise<void> {
        try {
            this.config = await JsonConfigLoader.getInstance().loadConfig('ballController') as BallControllerConfig;
            this.applyConfig();
            console.log('[BallController] ✅ 配置文件通过JsonConfigLoader加载成功:', this.config);
        } catch (error) {
            console.error('[BallController] 加载配置文件失败:', error);
            this.useDefaultConfig();
        }
    }

    private useDefaultConfig(): void {
        // 使用默认配置
        this.config = {
            baseSpeed: 60,
            maxReflectionRandomness: 0.2,
            antiTrapTimeWindow: 5.0,
            antiTrapHitThreshold: 5,
            deflectionAttemptThreshold: 3,
            antiTrapDeflectionMultiplier: 3.0,
            FIRE_COOLDOWN: 0.05,
            ballRadius: 10,
            gravityScale: 0,
            linearDamping: 0,
            angularDamping: 0,
            colliderGroup: 1,
            colliderTag: 1,
            friction: 0,
            restitution: 1,
            safeDistance: 50,
            edgeOffset: 20,
            sensor: false,
            maxAttempts: 50
        };
        this.applyConfig();
    }

    // 应用配置
    private applyConfig() {
        if (!this.config) return;
        
        this.baseSpeed = this.config.baseSpeed;
        this.currentSpeed = this.config.baseSpeed;
        this.maxReflectionRandomness = this.config.maxReflectionRandomness;
        this.antiTrapTimeWindow = this.config.antiTrapTimeWindow;
        this.antiTrapHitThreshold = this.config.antiTrapHitThreshold;
        this.deflectionAttemptThreshold = this.config.deflectionAttemptThreshold;
        this.antiTrapDeflectionMultiplier = this.config.antiTrapDeflectionMultiplier;
        this.FIRE_COOLDOWN = this.config.FIRE_COOLDOWN;
        
        console.log('BallController配置已应用:', this.config);
    }

    // 从配置中获取参数值的辅助方法
    private getConfigValue<T>(key: keyof BallControllerConfig, defaultValue: T): T {
        return this.config && this.config[key] !== undefined ? this.config[key] as T : defaultValue;
    }

    // 配置参数的getter方法
    private get ballRadius(): number {
        return this.getConfigValue('ballRadius', 10);
    }

    private get gravityScale(): number {
        return this.getConfigValue('gravityScale', 0);
    }

    private get linearDamping(): number {
        return this.getConfigValue('linearDamping', 0);
    }

    private get angularDamping(): number {
        return this.getConfigValue('angularDamping', 0);
    }

    private get colliderGroup(): number {
        return this.getConfigValue('colliderGroup', 2);
    }

    private get colliderTag(): number {
        return this.getConfigValue('colliderTag', 1);
    }

    private get friction(): number {
        return this.getConfigValue('friction', 0);
    }

    private get restitution(): number {
        return this.getConfigValue('restitution', 1);
    }

    private get safeDistance(): number {
        return this.getConfigValue('safeDistance', 50);
    }

    private get edgeOffset(): number {
        return this.getConfigValue('edgeOffset', 20);
    }

    private get sensor(): boolean {
        return this.getConfigValue('sensor', false);
    }

    private get maxAttempts(): number {
        return this.getConfigValue('maxAttempts', 50);
    }

    private setupEventListeners() {
        const eventBus = EventBus.getInstance();
        
        // 监听暂停事件
        eventBus.on(GameEvents.GAME_PAUSE, this.onGamePauseEvent, this);
        eventBus.on(GameEvents.GAME_PAUSE_SKILL_SELECTION, this.onGamePauseSkillSelectionEvent, this);
        eventBus.on(GameEvents.GAME_PAUSE_BLOCK_SELECTION, this.onGamePauseBlockSelectionEvent, this);
        
        // 监听恢复事件
        eventBus.on(GameEvents.GAME_RESUME, this.onGameResumeEvent, this);
        eventBus.on(GameEvents.GAME_RESUME_SKILL_SELECTION, this.onGameResumeSkillSelectionEvent, this);
        eventBus.on(GameEvents.GAME_RESUME_BLOCK_SELECTION, this.onGameResumeBlockSelectionEvent, this);
        
        // 监听重置球控制器事件
        eventBus.on(GameEvents.RESET_BALL_CONTROLLER, this.onResetBallControllerEvent, this);
        
        // 监听球创建事件
        eventBus.on(GameEvents.BALL_CREATE, this.onBallCreateEvent, this);
        
        // 监听球启动事件
        eventBus.on(GameEvents.BALL_START, this.onBallStartEvent, this);
        
        // 监听创建额外球事件
        eventBus.on(GameEvents.BALL_CREATE_ADDITIONAL, this.onBallCreateAdditionalEvent, this);
        
        // 监听子弹发射检查事件
        eventBus.on(GameEvents.BALL_FIRE_BULLET, this.onBallFireBulletEvent, this);
        
        // 监听方块拖拽开始事件
        eventBus.on(GameEvents.BLOCK_DRAG_START, this.onBlockDragStartEvent, this);
        
        // 监听方块拖拽结束事件
        eventBus.on(GameEvents.BLOCK_DRAG_END, this.onBlockDragEndEvent, this);
    }

    /**
     * 处理游戏暂停事件
     */
    private onGamePauseEvent() {
        console.log('[BallController] 接收到游戏暂停事件，暂停小球运动');
        this.pauseBall();
    }

    /**
     * 处理技能选择暂停事件（所有小球完全停止）
     */
    private onGamePauseSkillSelectionEvent() {
        console.log('[BallController] 接收到技能选择暂停事件，暂停所有小球运动');
        this.pauseAllBalls();
    }

    /**
     * 处理底板选择暂停事件（所有小球继续运动）
     */
    private onGamePauseBlockSelectionEvent() {
        console.log('[BallController] 接收到底板选择暂停事件，小球继续运动');
        // 底板选择时不暂停小球运动，只是标记游戏状态为暂停
        this.isPaused = true;
    }

    /**
     * 处理游戏恢复事件
     */
    private onGameResumeEvent() {
        console.log('[BallController] 接收到游戏恢复事件，恢复小球运动');
        this.resumeAllBalls();
    }
    
    /**
     * 处理技能选择恢复事件
     */
    private onGameResumeSkillSelectionEvent() {
        console.log('[BallController] 接收到技能选择恢复事件，恢复小球运动');
        this.resumeAllBalls();
    }
    
    /**
     * 处理底板选择恢复事件
     */
    private onGameResumeBlockSelectionEvent() {
        console.log('[BallController] 接收到底板选择恢复事件，恢复小球运动');
        this.resumeAllBalls();
    }
    
    /**
     * 处理重置球控制器事件
     */
    private onResetBallControllerEvent() {
        console.log('[BallController] 接收到重置球控制器事件');
        this.resetBallController();
    }
    
    /**
     * 处理球创建事件
     */
    private onBallCreateEvent() {
        console.log('[BallController] 接收到球创建事件');
        this.createBall();
    }
    
    /**
     * 处理球启动事件
     */
    private onBallStartEvent() {
        console.log('[BallController] 接收到球启动事件');
        this.startBall();
    }
    
    /**
     * 处理创建额外球事件
     */
    private onBallCreateAdditionalEvent() {
        console.log('[BallController] 接收到创建额外球事件');
        this.createAdditionalBall();
    }
    
    /**
     * 处理子弹发射检查事件
     */
    private onBallFireBulletEvent(blockNode: Node, fireWorldPos: Vec3) {
        // 如果游戏暂停，则不允许发射子弹
        if (this.isPaused) {
            console.log('[BallController] 游戏暂停中，阻止子弹发射');
            return;
        }
        
        // 如果游戏未暂停，则继续执行子弹发射逻辑
        this.fireBulletAt(blockNode, fireWorldPos);
    }
    
    /**
     * 处理方块拖拽开始事件
     */
    private onBlockDragStartEvent(data: { block: Node }) {
        if (data && data.block) {
            console.log('[BallController] 方块开始拖拽:', data.block.name, '路径:', this.getNodePath(data.block));
            this.draggingBlocks.add(data.block);
            console.log('[BallController] 当前拖拽方块数量:', this.draggingBlocks.size);
        }
    }
    
    /**
     * 处理方块拖拽结束事件
     */
    private onBlockDragEndEvent(data: { block: Node }) {
        if (data && data.block) {
            console.log('[BallController] 方块结束拖拽:', data.block.name, '路径:', this.getNodePath(data.block));
            const wasDeleted = this.draggingBlocks.delete(data.block);
            console.log('[BallController] 删除成功:', wasDeleted, '当前拖拽方块数量:', this.draggingBlocks.size);
        }
    }
    
    /**
     * 调试方法：显示当前拖拽的方块
     */
    private debugDraggingBlocks() {
        console.log('[BallController] 当前拖拽方块列表:');
        this.draggingBlocks.forEach((block, index) => {
           // console.log(`  ${index + 1}. ${block.name} - 路径: ${this.getNodePath(block)} - 有效: ${block.isValid}`);
        });
    }

    // 计算游戏边界（使用GameArea节点）
    calculateGameBounds() {
        // 获取GameArea节点
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (!gameArea) {
            return;
        }

        const gameAreaUI = gameArea.getComponent(UITransform);
        if (!gameAreaUI) {
            return;
        }

        // 获取GameArea的尺寸
        const areaWidth = gameAreaUI.width;
        const areaHeight = gameAreaUI.height;
        
        // 获取GameArea的世界坐标位置
        const worldPos = gameArea.worldPosition;

        // 计算GameArea的世界坐标边界
        this.gameBounds.left = worldPos.x - areaWidth / 2;
        this.gameBounds.right = worldPos.x + areaWidth / 2;
        this.gameBounds.bottom = worldPos.y - areaHeight / 2;
        this.gameBounds.top = worldPos.y + areaHeight / 2;
        
    }

    // 创建小球
    createBall() {
        if (!this.ballPrefab) {
            console.error('[BallController] ballPrefab 未设置，无法创建小球');
            return;
        }

        // 实例化小球
        this.activeBall = instantiate(this.ballPrefab);
        
        if (!this.activeBall) {
            console.error('[BallController] 小球实例化失败');
            return;
        }
        
        // 将小球添加到GameArea中
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (gameArea) {
            gameArea.addChild(this.activeBall);
        } else {
            console.warn('[BallController] 未找到GameArea，将小球添加到当前节点');
            this.node.addChild(this.activeBall);
        }

        // 随机位置小球
        this.positionBallRandomly();

        // 设置球的半径
        const transform = this.activeBall.getComponent(UITransform);
        if (transform) {
            this.radius = transform.width / 2;
        } else {
            this.radius = 25; // 默认半径
        }

        // 确保有碰撞组件
        this.setupCollider();

        // 注意：不在这里初始化方向，等待 startBall() 调用

        this.initialized = true;
    }
    
    // 创建额外的小球（不替换现有的小球）
    public createAdditionalBall() {
        if (!this.ballPrefab) {
            console.error('无法创建额外小球：ballPrefab 未设置');
            return;
        }

        // 实例化新的小球
        const newBall = instantiate(this.ballPrefab);
        newBall.name = 'AdditionalBall';
        
        // 将小球添加到GameArea中
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (gameArea) {
            gameArea.addChild(newBall);
        } else {
            this.node.addChild(newBall);
        }

        // 随机位置小球
        this.positionAdditionalBall(newBall);

        // 设置球的碰撞组件
        this.setupBallCollider(newBall);
        
        // 设置初始方向和速度
        this.initializeBallDirection(newBall);
        
        console.log('创建了额外的小球');
        return newBall;
    }

    // 为额外小球设置随机位置
    private positionAdditionalBall(ball: Node) {
        if (!ball) return;

        const transform = ball.getComponent(UITransform);
        const ballRadius = transform ? transform.width / 2 : this.ballRadius;
        
        // 计算可生成的范围（考虑小球半径，避免生成在边缘）
        const minX = this.gameBounds.left + ballRadius + this.edgeOffset;
        const maxX = this.gameBounds.right - ballRadius - this.edgeOffset;
        const minY = this.gameBounds.bottom + ballRadius + this.edgeOffset;
        const maxY = this.gameBounds.top - ballRadius - this.edgeOffset;

        // 获取GameArea节点
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (!gameArea) {
            return;
        }
        
        // 随机生成位置
        const randomX = Math.random() * (maxX - minX) + minX;
        const randomY = Math.random() * (maxY - minY) + minY;
        
        // 将世界坐标转换为相对于GameArea的本地坐标
        const localPos = gameArea.getComponent(UITransform).convertToNodeSpaceAR(new Vec3(randomX, randomY, 0));
        ball.position = localPos;
    }

    // 为额外小球设置碰撞组件
    private setupBallCollider(ball: Node) {
        // 确保有碰撞组件
        let collider = ball.getComponent(CircleCollider2D);
        if (!collider) {
            collider = ball.addComponent(CircleCollider2D);
        }
        
        // 设置碰撞属性（使用配置值）
        collider.radius = this.ballRadius;
        collider.group = this.colliderGroup;
        collider.tag = this.colliderTag;
        collider.sensor = this.sensor;
        collider.friction = this.friction;
        collider.restitution = this.restitution;
        
        // 添加刚体组件
        let rigidBody = ball.getComponent(RigidBody2D);
        if (!rigidBody) {
            rigidBody = ball.addComponent(RigidBody2D);
        }
        
        // 设置刚体属性（使用配置值）
        rigidBody.type = ERigidBody2DType.Dynamic; // 动态刚体
        rigidBody.allowSleep = false;
        rigidBody.gravityScale = this.gravityScale;
        rigidBody.linearDamping = this.linearDamping;
        rigidBody.angularDamping = this.angularDamping;
        rigidBody.fixedRotation = true;
        rigidBody.enabledContactListener = true; // 启用碰撞监听
        
        // 注意：不需要为每个小球单独添加碰撞回调，
        // 因为我们使用的是全局物理系统回调
    }

    // 为额外小球初始化方向和速度
    private initializeBallDirection(ball: Node) {
        // 随机初始方向
        const angle = Math.random() * Math.PI * 2; // 0-2π之间的随机角度
        const direction = new Vec2(Math.cos(angle), Math.sin(angle)).normalize();
        
        // 设置初始速度
        const rigidBody = ball.getComponent(RigidBody2D);
        if (rigidBody) {
            rigidBody.linearVelocity = new Vec2(
                direction.x * this.currentSpeed,
                direction.y * this.currentSpeed
            );
        }
    }

 
  
    // 检查所有已放置方块的碰撞体组件
    private checkBlockColliders() {
        
        if (!this.placedBlocksContainer) {
            return;
        }
        
        if (!this.placedBlocksContainer.isValid) {
            return;
        }
        
        const blocks = [];
        for (let i = 0; i < this.placedBlocksContainer.children.length; i++) {
            const block = this.placedBlocksContainer.children[i];
            if (block.name.includes('Block') || block.getChildByName('B1')) {
                blocks.push(block);
            }
        }
        
        let fixedCount = 0;
        
        for (let i = 0; i < blocks.length; i++) {
            const block = blocks[i];
            
            // 检查方块本身的碰撞体
            const blockCollider = block.getComponent(Collider2D);
            if (blockCollider) {
                // 🔧 自动修复碰撞组设置
                if (blockCollider.group !== 2) {
                    blockCollider.group = 2; // 设置为Block组
                    fixedCount++;
                }
                
                // 确保不是传感器
                if (blockCollider.sensor) {
                    blockCollider.sensor = false;
                }
            }
            
            // 检查B1子节点的碰撞体
            const b1Node = block.getChildByName('B1');
            if (b1Node) {
                const b1Collider = b1Node.getComponent(Collider2D);
                if (b1Collider) {
                    // 🔧 修复B1子节点的碰撞设置
                    if (b1Collider.group !== 2) {
                        b1Collider.group = 2; // 设置为Block组
                        fixedCount++;
                    }
                    
                    // 确保B1不是传感器（需要实际碰撞）
                    if (b1Collider.sensor) {
                        b1Collider.sensor = false;
                    }
                }
            }
            
            // 检查Weapon子节点
            const weaponNode = this.findWeaponNode(block);
            if (weaponNode) {
                // 武器节点存在
            }
        }
    }

    // 随机位置小球
    positionBallRandomly() {
        if (!this.activeBall) return;

        const transform = this.activeBall.getComponent(UITransform);
        const ballRadius = transform ? transform.width / 2 : this.ballRadius;
        
        // 计算可生成的范围（考虑小球半径，避免生成在边缘）
        const minX = this.gameBounds.left + ballRadius + this.edgeOffset; // 额外偏移，避免生成在边缘
        const maxX = this.gameBounds.right - ballRadius - this.edgeOffset;
        const minY = this.gameBounds.bottom + ballRadius + this.edgeOffset;
        const maxY = this.gameBounds.top - ballRadius - this.edgeOffset;

        // 获取GameArea节点
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (!gameArea) {
            return;
        }
        
        // 查找PlacedBlocks节点，它包含所有放置的方块
        if (!this.placedBlocksContainer) {
            this.setRandomPositionDefault(this.activeBall, minX, maxX, minY, maxY);
            return;
        }
    
        
        // 获取所有已放置的方块
        const placedBlocks = [];
        for (let i = 0; i < this.placedBlocksContainer.children.length; i++) {
            const block = this.placedBlocksContainer.children[i];
            // 检查是否是方块节点（通常以Block命名或有特定标识）
            if (block.name.includes('Block') || block.getChildByName('B1')) {
                placedBlocks.push(block);
            }
        }
        
        // 如果没有方块，使用默认随机位置
        if (placedBlocks.length === 0) {
            this.setRandomPositionDefault(this.activeBall, minX, maxX, minY, maxY);
            return;
        }
        
        // 尝试找到一个不与任何方块重叠的位置
        let validPosition = false;
        let attempts = 0;
        const maxAttempts = this.maxAttempts; // 从配置中获取最大尝试次数
        let randomX, randomY;
        
        while (!validPosition && attempts < maxAttempts) {
            // 随机生成位置
            randomX = Math.random() * (maxX - minX) + minX;
            randomY = Math.random() * (maxY - minY) + minY;
            
            // 检查是否与任何方块重叠
            let overlapping = false;
            for (const block of placedBlocks) {
                // 获取方块的世界坐标
                const blockWorldPos = block.worldPosition;
                
                // 计算小球与方块的距离
                const distance = Math.sqrt(
                    Math.pow(randomX - blockWorldPos.x, 2) + 
                    Math.pow(randomY - blockWorldPos.y, 2)
                );
                
                // 获取方块的尺寸
                const blockTransform = block.getComponent(UITransform);
                const blockSize = blockTransform ? 
                    Math.max(blockTransform.width, blockTransform.height) / 2 : this.safeDistance;
                
                // 如果距离小于小球半径+方块尺寸的一半+安全距离，认为重叠
                if (distance < ballRadius + blockSize + this.safeDistance) {
                    overlapping = true;
                    break;
                }
            }
            
            // 如果没有重叠，找到了有效位置
            if (!overlapping) {
                validPosition = true;
            }
            
            attempts++;
        }
        
        // 如果找不到有效位置，使用默认位置（游戏区域底部中心）
        if (!validPosition) {
            randomX = (this.gameBounds.left + this.gameBounds.right) / 2;
            randomY = this.gameBounds.bottom + ballRadius + this.safeDistance; // 底部上方安全距离单位
        }
        
        // 将世界坐标转换为相对于GameArea的本地坐标
        const localPos = gameArea.getComponent(UITransform).convertToNodeSpaceAR(new Vec3(randomX, randomY, 0));
        this.activeBall.position = localPos;
    }


    // 设置碰撞组件
    setupCollider() {
        if (!this.activeBall) return;

        // 确保小球有刚体组件
        let rigidBody = this.activeBall.getComponent(RigidBody2D);
        if (!rigidBody) {
            rigidBody = this.activeBall.addComponent(RigidBody2D);
            rigidBody.type = ERigidBody2DType.Dynamic; // Dynamic
            rigidBody.gravityScale = this.gravityScale; // 从配置获取重力缩放
            rigidBody.enabledContactListener = true; // 启用碰撞监听
            rigidBody.fixedRotation = true; // 固定旋转
            rigidBody.allowSleep = false; // 不允许休眠
            rigidBody.linearDamping = this.linearDamping; // 从配置获取线性阻尼
            rigidBody.angularDamping = this.angularDamping; // 从配置获取角阻尼
        } else {
            // 确保已有的刚体组件设置正确
            rigidBody.enabledContactListener = true;
            rigidBody.gravityScale = this.gravityScale;
            rigidBody.linearDamping = this.linearDamping; // 从配置获取线性阻尼
            rigidBody.angularDamping = this.angularDamping; // 从配置获取角阻尼
            rigidBody.allowSleep = false; // 不允许休眠
        }

        // 确保小球有碰撞组件
        let collider = this.activeBall.getComponent(CircleCollider2D);
        if (!collider) {
            collider = this.activeBall.addComponent(CircleCollider2D);
            collider.radius = this.radius || this.ballRadius; // 使用已计算的半径或配置值
            collider.tag = this.colliderTag; // 从配置获取小球标签
            collider.group = this.colliderGroup; // 从配置获取碰撞组
            collider.sensor = this.sensor; // 从配置获取传感器设置
            collider.friction = this.friction; // 从配置获取摩擦系数
            collider.restitution = this.restitution; // 从配置获取恢复系数
        } else {
            // 确保已有的碰撞组件设置正确
            collider.sensor = this.sensor;
            collider.restitution = this.restitution;
            collider.group = this.colliderGroup; // 从配置获取碰撞组
            collider.tag = this.colliderTag; // 从配置获取标签
        }

        // === 使用全局回调监听器 ===
        const physics = PhysicsManager.getInstance()?.getSystem();
        if (physics) {
            // 先移除旧监听，避免重复注册
            physics.off(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);

            // 只注册实际需要的碰撞开始事件
            physics.on(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
        }
    }

    // 碰撞回调 - 处理小球与方块以及小球之间的碰撞
    onBeginContact(selfCollider: Collider2D, otherCollider: Collider2D, contact: IPhysics2DContact | null) {
        // 检查是否为小球之间的碰撞
        if (selfCollider.group === 1 && otherCollider.group === 1) {
            // 小球之间的碰撞 - 防止速度改变
            this.handleBallToBallCollision(selfCollider, otherCollider, contact);
            return;
        }
        
        // 判断哪个是小球，哪个是碰撞对象
        let ballNode: Node = null;
        let otherNode: Node = null;
        
        // 检查self是否为小球（组1）
        if (selfCollider.group === 1) {
            ballNode = selfCollider.node;
            otherNode = otherCollider.node;
        } 
        // 检查other是否为小球（组1）
        else if (otherCollider.group === 1) {
            ballNode = otherCollider.node;
            otherNode = selfCollider.node;
        }
        
        // 如果没有找到小球，跳过处理
        if (!ballNode || !otherNode) {
            return;
        }

        // 检查是否为方块碰撞
        const nodeName = otherNode.name;
        const nodePath = this.getNodePath(otherNode);
        // 根据新的预制体结构，检查B1/Weapon路径
        const b1Node = otherNode.getChildByName('B1');
        const hasWeaponChild = b1Node ? b1Node.getChildByName('Weapon') !== null : otherNode.getChildByName('Weapon') !== null;
        const isBlock = 
            nodeName.includes('Block') || 
            nodePath.includes('Block') ||
            hasWeaponChild;

        // 如果是方块碰撞，检查防围困机制
        if (isBlock) {
            // 检查方块是否正在被拖拽，如果是则忽略碰撞
            // 需要检查碰撞节点本身或其父节点是否在拖拽列表中
            let isDragging = false;
            let currentNode = otherNode;
            
            // 向上遍历节点树，检查是否有父节点在拖拽列表中
            while (currentNode && !isDragging) {
                if (this.draggingBlocks.has(currentNode)) {
                    isDragging = true;
                    console.log('[BallController] 发现拖拽方块，忽略碰撞:', currentNode.name, '碰撞节点:', otherNode.name, '路径:', nodePath);
                    break;
                }
                currentNode = currentNode.parent;
            }
            
            if (isDragging) {
                console.log('[BallController] 当前拖拽方块数量:', this.draggingBlocks.size);
                if (contact) {
                    contact.disabled = true;
                }
                return;
            }
            
            const ballId = ballNode.uuid;
            const currentTime = performance.now() / 1000; // 转换为秒

            // 检查是否处于穿透状态
            const phaseThroughEndTime = this.ballPhaseThrough.get(ballId);
            if (phaseThroughEndTime && currentTime < phaseThroughEndTime) {
                // 处于穿透状态，忽略碰撞但仍播放特效
                const ballAni = BallAni.getInstance();
                if (ballAni) {
                    let contactPos: Vec3 = null;
                    if (contact && (contact as any).getWorldManifold) {
                        const wm = (contact as any).getWorldManifold();
                        if (wm && wm.points && wm.points.length > 0) {
                            contactPos = new Vec3(wm.points[0].x, wm.points[0].y, 0);
                        }
                    }
                    if (!contactPos) {
                        contactPos = otherNode.worldPosition.clone();
                    }
                    ballAni.playImpactEffect(contactPos);
                }
                // 禁用碰撞
                if (contact) {
                    contact.disabled = true;
                }
                return;
            }

            // 记录撞击历史
            if (!this.ballHitHistory.has(ballId)) {
                this.ballHitHistory.set(ballId, []);
            }
            const hitHistory = this.ballHitHistory.get(ballId);
            hitHistory.push(currentTime);

            // 清理过期的撞击记录
            const timeThreshold = currentTime - this.antiTrapTimeWindow;
            while (hitHistory.length > 0 && hitHistory[0] < timeThreshold) {
                hitHistory.shift();
            }

            // 测试模式：显示详细的防围困信息
           // console.log(`[BallController] 测试模式 - 小球撞击统计: 撞击次数=${hitHistory.length}/${this.antiTrapHitThreshold}, 时间窗口=${this.antiTrapTimeWindow}秒, 方块=${otherNode.name}`);

            // 检查是否达到防围困条件
            if (hitHistory.length >= this.antiTrapHitThreshold) {
                //console.log(`[BallController] 测试模式 - 触发防围困机制! 撞击次数已达到阈值 ${this.antiTrapHitThreshold}`);
                // 获取当前偏移尝试次数
                const deflectionAttempts = this.ballDeflectionAttempts.get(ballId) || 0;
                
                if (deflectionAttempts < this.deflectionAttemptThreshold) {
                    // 优先使用偏移方式
                    this.ballDeflectionAttempts.set(ballId, deflectionAttempts + 1);
                    //console.log(`[BallController] 测试模式 - 应用防围困偏移 (第${deflectionAttempts + 1}/${this.deflectionAttemptThreshold}次尝试)`);
                    
                    // 应用增强偏移反弹
                    const rigidBody = ballNode.getComponent(RigidBody2D);
                    if (rigidBody && contact) {
                        // 获取碰撞法线
                        let normal = new Vec2(0, 1);
                        if ((contact as any).getWorldManifold) {
                            const wm = (contact as any).getWorldManifold();
                            if (wm && wm.normal) {
                                normal = new Vec2(wm.normal.x, wm.normal.y);
                            }
                        }
                        
                        // 计算增强偏移反弹方向
                        const currentVelocity = rigidBody.linearVelocity;
                        const currentDirection = new Vec2(currentVelocity.x, currentVelocity.y).normalize();
                        const oldDirection = `(${currentDirection.x.toFixed(2)}, ${currentDirection.y.toFixed(2)})`;
                        const newDirection = this.calculateAntiTrapReflection(currentDirection, normal);
                        const newDirectionStr = `(${newDirection.x.toFixed(2)}, ${newDirection.y.toFixed(2)})`;
                        
                        console.log(`[BallController] 测试模式 - 方向改变: ${oldDirection} -> ${newDirectionStr}`);
                        
                        // 应用新的速度方向
                        const speed = currentVelocity.length();
                        rigidBody.linearVelocity = new Vec2(newDirection.x * speed, newDirection.y * speed);
                        
                    }
                    
                    // 清空撞击历史，给偏移一个机会
                    hitHistory.length = 0;
                } else {
                    // 偏移尝试次数已达上限，使用穿透
                    console.log(`[BallController] 测试模式 - 偏移尝试已达上限，启用穿透模式 (0.5秒)`);
                    this.ballPhaseThrough.set(ballId, currentTime + 0.5);
                    // 重置偏移尝试次数
                    this.ballDeflectionAttempts.set(ballId, 0);
                    // 清空撞击历史
                    hitHistory.length = 0;
                    // 禁用当前碰撞
                    if (contact) {
                        contact.disabled = true;
                    }
                    return;
                }
            }
        }
        
        // 计算碰撞世界坐标
        let contactPos: Vec3 = null;
        if (contact && (contact as any).getWorldManifold) {
            const wm = (contact as any).getWorldManifold();
            if (wm && wm.points && wm.points.length > 0) {
                contactPos = new Vec3(wm.points[0].x, wm.points[0].y, 0);
            }
        }
        if (!contactPos) {
            contactPos = otherNode.worldPosition.clone();
        }

        // 播放撞击特效 - 对所有碰撞都播放特效
        const ballAni = BallAni.getInstance();
        if (ballAni) {
            ballAni.playImpactEffect(contactPos);
        }
            
        if (isBlock) {
            // 播放方块撞击动画
            if (ballAni) {
                ballAni.playBlockHitAnimation(otherNode);
            }
            // 通过事件检查是否可以发射子弹
            const eventBus = EventBus.getInstance();
            let canFire = true;
            
            // 发送检查事件，如果有监听器返回false则不发射
            eventBus.emit(GameEvents.BALL_FIRE_BULLET, { canFire: (value: boolean) => { canFire = value; } });
            
            if (canFire) {
                
                const now = performance.now();
                const lastTime = this.blockFireCooldown.get(otherNode.uuid) || 0;
                if (now - lastTime > this.FIRE_COOLDOWN * 1000) {
                    this.blockFireCooldown.set(otherNode.uuid, now);
                    this.fireBulletAt(otherNode, contactPos);
                }
            }
        }
    }

    /**
     * 处理小球之间的碰撞 - 保持恒定速度
     */
    private handleBallToBallCollision(selfCollider: Collider2D, otherCollider: Collider2D, contact: IPhysics2DContact | null) {
        const ball1 = selfCollider.node;
        const ball2 = otherCollider.node;
        
        const rigidBody1 = ball1.getComponent(RigidBody2D);
        const rigidBody2 = ball2.getComponent(RigidBody2D);
        
        if (!rigidBody1 || !rigidBody2) {
            return;
        }
        
        // 计算碰撞位置并播放撞击特效
        let contactPos: Vec3 = null;
        if (contact && (contact as any).getWorldManifold) {
            const wm = (contact as any).getWorldManifold();
            if (wm && wm.points && wm.points.length > 0) {
                contactPos = new Vec3(wm.points[0].x, wm.points[0].y, 0);
            }
        }
        if (!contactPos) {
            // 使用两个小球位置的中点作为碰撞位置
            const pos1 = ball1.worldPosition;
            const pos2 = ball2.worldPosition;
            contactPos = new Vec3(
                (pos1.x + pos2.x) / 2,
                (pos1.y + pos2.y) / 2,
                0
            );
        }
        
        // 播放撞击特效
        const ballAni = BallAni.getInstance();
        if (ballAni) {
            ballAni.playImpactEffect(contactPos);
        }
        
        // 获取碰撞前的速度
        const velocity1 = rigidBody1.linearVelocity.clone();
        const velocity2 = rigidBody2.linearVelocity.clone();
        
        // 计算速度大小
        const speed1 = Math.sqrt(velocity1.x * velocity1.x + velocity1.y * velocity1.y);
        const speed2 = Math.sqrt(velocity2.x * velocity2.x + velocity2.y * velocity2.y);
        
        // 延迟一帧后恢复正确的速度，避免物理引擎的速度改变
        this.scheduleOnce(() => {
            if (ball1.isValid && rigidBody1.isValid) {
                const currentVel1 = rigidBody1.linearVelocity;
                const currentSpeed1 = Math.sqrt(currentVel1.x * currentVel1.x + currentVel1.y * currentVel1.y);
                
                // 如果速度发生了显著变化，恢复到目标速度
                if (Math.abs(currentSpeed1 - this.currentSpeed) > 5) {
                    const normalizedVel1 = currentVel1.clone().normalize();
                    rigidBody1.linearVelocity = new Vec2(
                        normalizedVel1.x * this.currentSpeed,
                        normalizedVel1.y * this.currentSpeed
                    );
                }
            }
            
            if (ball2.isValid && rigidBody2.isValid) {
                const currentVel2 = rigidBody2.linearVelocity;
                const currentSpeed2 = Math.sqrt(currentVel2.x * currentVel2.x + currentVel2.y * currentVel2.y);
                
                // 如果速度发生了显著变化，恢复到目标速度
                if (Math.abs(currentSpeed2 - this.currentSpeed) > 5) {
                    const normalizedVel2 = currentVel2.clone().normalize();
                    rigidBody2.linearVelocity = new Vec2(
                        normalizedVel2.x * this.currentSpeed,
                        normalizedVel2.y * this.currentSpeed
                    );
                }
            }
        }, 0.016); // 约一帧的时间
    }
    
    // 计算反射向量
    calculateReflection(direction: Vec2, normal: Vec2): Vec2 {
        // 使用反射公式: R = V - 2(V·N)N
        const dot = direction.x * normal.x + direction.y * normal.y;
        const reflection = new Vec2(
            direction.x - 2 * dot * normal.x,
            direction.y - 2 * dot * normal.y
        );
        reflection.normalize();
        
        // 添加一些随机性，避免重复的反弹路径
        const randomAngle = (Math.random() - 0.5) * this.maxReflectionRandomness; // 随机角度
        const cos = Math.cos(randomAngle);
        const sin = Math.sin(randomAngle);
        
        // 应用随机旋转
        const randomizedReflection = new Vec2(
            reflection.x * cos - reflection.y * sin,
            reflection.x * sin + reflection.y * cos
        );
        
        // 更强的防水平/垂直往复运动机制
        // 增大最小角度阈值，并添加更强的随机偏移
        const minAngleFromAxis = 0.5; // 从0.3增加到0.5，约28.6度
        const strongRandomOffset = 0.2; // 增加随机偏移范围
        
        // 检查是否接近水平方向（y分量过小）
        if (Math.abs(randomizedReflection.y) < minAngleFromAxis) {
            // 调整y分量，使其远离水平方向，并添加更大的随机偏移
            const sign = randomizedReflection.y >= 0 ? 1 : -1;
            randomizedReflection.y = sign * (minAngleFromAxis + Math.random() * strongRandomOffset);
            // 重新归一化
            randomizedReflection.normalize();
        }
        
        // 检查是否接近垂直方向（x分量过小）
        if (Math.abs(randomizedReflection.x) < minAngleFromAxis) {
            // 调整x分量，使其远离垂直方向，并添加更大的随机偏移
            const sign = randomizedReflection.x >= 0 ? 1 : -1;
            randomizedReflection.x = sign * (minAngleFromAxis + Math.random() * strongRandomOffset);
            // 重新归一化
            randomizedReflection.normalize();
        }
        
        // 额外检查：如果仍然太接近轴向，强制添加对角分量
        const finalCheck = 0.4;
        if (Math.abs(randomizedReflection.y) < finalCheck || Math.abs(randomizedReflection.x) < finalCheck) {
            // 强制添加对角分量，确保既有x又有y的显著分量
            const angle = Math.PI / 4 + (Math.random() - 0.5) * Math.PI / 6; // 45度±15度
            const signX = randomizedReflection.x >= 0 ? 1 : -1;
            const signY = randomizedReflection.y >= 0 ? 1 : -1;
            randomizedReflection.x = signX * Math.cos(angle);
            randomizedReflection.y = signY * Math.sin(angle);
        }
        
        randomizedReflection.normalize();
        
        return randomizedReflection;
    }

    /**
     * 计算防围困增强偏移反弹方向
     * @param direction 当前方向
     * @param normal 碰撞法线
     * @returns 增强偏移后的反弹方向
     */
    calculateAntiTrapReflection(direction: Vec2, normal: Vec2): Vec2 {
        // 使用反射公式: R = V - 2(V·N)N
        const dot = direction.x * normal.x + direction.y * normal.y;
        const reflection = new Vec2(
            direction.x - 2 * dot * normal.x,
            direction.y - 2 * dot * normal.y
        );
        reflection.normalize();
        
        // 应用更强的随机偏移来帮助脱困
        const enhancedRandomness = this.maxReflectionRandomness * this.antiTrapDeflectionMultiplier;
        const randomAngle = (Math.random() - 0.5) * enhancedRandomness;
        const cos = Math.cos(randomAngle);
        const sin = Math.sin(randomAngle);
        
        // 应用随机旋转
        const randomizedReflection = new Vec2(
            reflection.x * cos - reflection.y * sin,
            reflection.x * sin + reflection.y * cos
        );
        
        // 更强的轴向偏移避免
        const minAngleFromAxis = 0.3; // 约17度，比普通反弹更大的偏移
        
        // 检查是否接近水平方向
        if (Math.abs(randomizedReflection.y) < minAngleFromAxis) {
            const sign = randomizedReflection.y >= 0 ? 1 : -1;
            randomizedReflection.y = sign * (minAngleFromAxis + Math.random() * 0.2);
            randomizedReflection.normalize();
        }
        
        // 检查是否接近垂直方向
        if (Math.abs(randomizedReflection.x) < minAngleFromAxis) {
            const sign = randomizedReflection.x >= 0 ? 1 : -1;
            randomizedReflection.x = sign * (minAngleFromAxis + Math.random() * 0.2);
            randomizedReflection.normalize();
        }
        
        randomizedReflection.normalize();
        console.log(`Applied anti-trap enhanced deflection with angle: ${randomAngle}`);
        
        return randomizedReflection;
    }

    /**
     * 从方块武器发射子弹攻击敌人 - 重构版本
     * 现在直接创建子弹实例并使用BulletController的实例方法
     * @param blockNode 激活的方块节点
     */
    fireBullet(blockNode: Node) {     
        // 检查子弹预制体是否存在
        if (!this.bulletPrefab) {
            return;
        }        
        
        // 查找方块中的Weapon节点
        const weaponNode = this.findWeaponNode(blockNode);
        let firePosition: Vec3;
        
        if (!weaponNode) {
            firePosition = blockNode.worldPosition;
        } else {
            // 获取武器的世界坐标作为发射位置
            try {
                firePosition = weaponNode.worldPosition;
            } catch (error) {
                // 备用方案：使用方块坐标
                firePosition = blockNode.worldPosition;
            }
        }
        
        // 通过事件系统发射子弹，这样可以被暂停检查拦截
        EventBus.getInstance().emit(GameEvents.BALL_FIRE_BULLET, blockNode, firePosition);
    }
    
    /**
     * 创建并发射子弹 - 使用新的WeaponBullet系统
     * @param firePosition 发射位置（世界坐标）
     * @param weaponNode 武器节点（包含WeaponInfo组件）
     * @param sourceBlock 发射源方块节点（用于回旋镖返回）
     */
    private createAndFireBullet(firePosition: Vec3, weaponNode: Node | null, sourceBlock?: Node) {
        
        // 确保武器配置加载
        WeaponBullet.loadWeaponsData().then(() => {
            let finalConfig: WeaponConfig | null = null;
            
            // 优先从武器节点的WeaponInfo组件获取配置
            if (weaponNode && weaponNode.isValid) {
                const weaponInfo = weaponNode.getComponent(WeaponInfo);
                if (weaponInfo) {
                    finalConfig = weaponInfo.getWeaponConfig();
                    console.log(`[BallController] 从武器节点获取武器配置: ${finalConfig?.name || '未知'}`);
                    
                    // 检查武器是否可以开火
                    if (!weaponInfo.canFire()) {
                        console.log(`[BallController] 武器 ${finalConfig?.name || '未知'} 冷却中，无法开火`);
                        return;
                    }
                    
                    // 记录开火时间
                    weaponInfo.recordFireTime();
                }
            }
            
            // 如果没有从武器节点获取到配置，使用默认配置
            if (!finalConfig) {
                const defaultWeaponId = 'pea_shooter';
                finalConfig = WeaponBullet.getWeaponConfig(defaultWeaponId);
                console.log(`[BallController] 使用默认武器配置: ${defaultWeaponId}`);
            }
            
            if (!finalConfig) {
                console.warn(`[BallController] 无法获取武器配置，取消发射`);
                return;
            }
            
            // 获取WeaponInfo组件（如果有的话）
            let weaponInfoComponent: WeaponInfo | null = null;
            if (weaponNode && weaponNode.isValid) {
                weaponInfoComponent = weaponNode.getComponent(WeaponInfo);
            }
            
            // 获取BlockInfo组件（如果有的话）
            // BlockInfo组件位于方块的Node子节点上，而不是Weapon子节点上
            let blockInfoComponent: BlockInfo | null = null;
            if (weaponNode && weaponNode.isValid && weaponNode.parent) {
                // 从weaponNode的父节点（方块根节点）查找Node子节点
                const blockRootNode = weaponNode.parent;
                const nodeChild = blockRootNode.getChildByName('Node');
                if (nodeChild) {
                    blockInfoComponent = nodeChild.getComponent(BlockInfo);
                    if (blockInfoComponent) {
                        console.log(`[BallController] 找到BlockInfo组件，稀有度等级: ${blockInfoComponent.rarity}, 稀有度名称: ${blockInfoComponent.getRarityName()}`);
                    } else {
                        console.log(`[BallController] Node子节点上未找到BlockInfo组件`);
                    }
                } else {
                    console.log(`[BallController] 未找到Node子节点`);
                }
                
                // 如果还是没找到，尝试直接从weaponNode上获取（兼容旧结构）
                if (!blockInfoComponent) {
                    blockInfoComponent = weaponNode.getComponent(BlockInfo);
                    if (blockInfoComponent) {
                        console.log(`[BallController] 从weaponNode上找到BlockInfo组件，稀有度等级: ${blockInfoComponent.rarity}, 稀有度名称: ${blockInfoComponent.getRarityName()}`);
                    } else {
                        console.log(`[BallController] 未找到BlockInfo组件，将使用JSON配置中的稀有度`);
                    }
                }
            }
            
            // 创建子弹初始化数据
            const initData: BulletInitData = {
                weaponId: finalConfig.id,
                firePosition: firePosition,
                autoTarget: true,
                weaponConfig: finalConfig,
                weaponInfo: weaponInfoComponent,
                blockInfo: blockInfoComponent,
                sourceBlock: sourceBlock  // 传递发射源方块节点
            };
            
            // 验证初始化数据
            if (!WeaponBullet.validateInitData(initData)) {
                console.warn(`[BallController] 子弹初始化数据验证失败`);
                return;
            }
            
            // 查找GameArea（子弹统一添加到此节点）
            const gameArea = find('Canvas/GameLevelUI/GameArea');
            if (!gameArea) {
                console.warn(`[BallController] 未找到GameArea节点，无法发射子弹`);
                return;
            }

            // === 根据武器配置选择合适的预制体 ===
            const trailEffect = finalConfig.bulletConfig?.visual?.trailEffect;
            const needsContainerPrefab = Boolean(trailEffect);
            const prefabToUse: Prefab = (needsContainerPrefab && this.bulletContainerPrefab) ? this.bulletContainerPrefab : this.bulletPrefab;
            if (!prefabToUse) {
                console.warn(`[BallController] 没有可用的子弹预制体`);
                return;
            }

            // 使用批量创建逻辑
            console.log(`[BallController] 开始创建子弹 - 武器: ${finalConfig.name}, 预制体: ${prefabToUse ? prefabToUse.name : 'null'}`);
            const bullets = WeaponBullet.createBullets(initData, prefabToUse as any);
            console.log(`[BallController] WeaponBullet.createBullets 返回了 ${bullets.length} 个子弹`);
            
            bullets.forEach((b, index) => {
                console.log(`[BallController] 添加第 ${index + 1} 个子弹到场景 - 子弹节点: ${b ? b.name : 'null'}, 是否有效: ${b ? b.isValid : 'false'}`);
                if (b && b.isValid) {
                    gameArea.addChild(b);
                    console.log(`[BallController] 子弹 ${index + 1} 成功添加到场景，世界坐标: ${b.worldPosition}`);
                } else {
                    console.error(`[BallController] 子弹 ${index + 1} 无效，无法添加到场景`);
                }
            });
            
            console.log(`[BallController] 成功发射 ${bullets.length} 发子弹，武器: ${finalConfig.name}`);
            
        }).catch(error => {
            console.error(`[BallController] 武器配置加载失败:`, error);
        });
    }
    
    // 递归查找Weapon节点
    private findWeaponNode(node: Node): Node | null {
        // 检查节点是否有效
        if (!node || !node.isValid) {
            console.warn('[BallController] findWeaponNode: 传入的节点无效');
            return null;
        }
        
        // 根据新的预制体结构，武器节点直接位于方块根节点下
        // 首先检查当前节点是否有Weapon子节点
        const weaponNode = node.getChildByName('Weapon');
        if (weaponNode) {
            return weaponNode;
        }
        
        // 如果当前节点没有Weapon子节点，检查父节点（可能传入的是Node子节点而不是预制体根节点）
        if (node.parent) {
            const parentWeaponNode = node.parent.getChildByName('Weapon');
            if (parentWeaponNode) {
                return parentWeaponNode;
            }
        }
        
        // 最后使用递归方式查找（兼容其他可能的结构）
        for (let i = 0; i < node.children.length; i++) {
            const child = node.children[i];
            const foundWeapon = this.findWeaponNode(child);
            if (foundWeapon) {
                return foundWeapon;
            }
        }
        
        // 如果都没找到，返回null
        console.warn('[BallController] 方块', node.name, '中未找到武器节点');
        return null;
    }

    // 获取节点的完整路径
    private getNodePath(node: Node): string {
        let path = node.name;
        let current = node;
        
        while (current.parent) {
            current = current.parent;
            path = current.name + '/' + path;
        }
        
        return path;
    }

    private debugDragCounter = 0;
    
    update(dt: number) {
        // 只有当小球已启动时才执行运动逻辑
        if (!this.ballStarted || !this.initialized) {
            return;
        }
        
        // 维持所有小球的恒定速度
        this.maintainAllBallsSpeed();
        
        // 更新小球运动历史数据（用于检测振荡模式）
        this.updateBallMovementHistory();
        
        // 清理过期的防围困状态
        this.cleanupExpiredAntiTrapStates();
        
        // 定期检查小球位置，防止小球被挤出游戏区域
        this.lastPositionCheckTime += dt;
        if (this.lastPositionCheckTime >= this.positionCheckInterval) {
            this.checkAndRescueAllBalls();
            this.lastPositionCheckTime = 0;
        }
        
        // 定期检查小球是否接近方块但没有触发碰撞（调试用）
        if (this.activeBall && this.activeBall.isValid) {
            this.debugCheckNearBlocks();
        }
        
        // 定期调试拖拽状态（每5秒一次）
        this.debugDragCounter += dt;
        if (this.debugDragCounter >= 5.0 && this.draggingBlocks.size > 0) {
            console.log('[BallController] 定期调试 - 当前拖拽状态:');
            this.debugDraggingBlocks();
            this.debugDragCounter = 0;
        }
    }
    
    /**
     * 更新小球运动历史数据（用于检测振荡模式）
     */
    private updateBallMovementHistory() {
        if (!this.activeBall || !this.activeBall.isValid) {
            return;
        }

        const ballId = this.activeBall.uuid;
        const currentTime = Date.now() / 1000; // 转换为秒
        const currentPos = this.activeBall.getWorldPosition();
        const rigidBody = this.activeBall.getComponent(RigidBody2D);
        
        if (!rigidBody) {
            return;
        }

        const currentVelocity = rigidBody.linearVelocity;
        const currentDirection = new Vec2(currentVelocity.x, currentVelocity.y).normalize();

        // 初始化历史记录
        if (!this.ballPositionHistory.has(ballId)) {
            this.ballPositionHistory.set(ballId, []);
            this.ballDirectionHistory.set(ballId, []);
            this.ballOscillationDetection.set(ballId, {
                lastDirectionChange: currentTime,
                directionChangeCount: 0,
                oscillationAxis: 'none',
                oscillationStartTime: 0
            });
        }

        const posHistory = this.ballPositionHistory.get(ballId);
        const dirHistory = this.ballDirectionHistory.get(ballId);
        const oscillationData = this.ballOscillationDetection.get(ballId);

        // 更新位置历史
        posHistory.push(new Vec2(currentPos.x, currentPos.y));
        if (posHistory.length > this.positionHistorySize) {
            posHistory.shift();
        }

        // 更新方向历史
        dirHistory.push(currentDirection.clone());
        if (dirHistory.length > this.positionHistorySize) {
            dirHistory.shift();
        }

        // 检测方向改变
        if (dirHistory.length >= 2) {
            const prevDirection = dirHistory[dirHistory.length - 2];
            const dotProduct = Vec2.dot(prevDirection, currentDirection);
            
            // 如果方向改变超过90度（点积小于0），认为是显著的方向改变
            if (dotProduct < 0) {
                oscillationData.directionChangeCount++;
                oscillationData.lastDirectionChange = currentTime;
                
                if (this.testMode) {
                    //console.log(`[防围困] 小球 ${ballId.substring(0, 8)} 方向改变，累计次数: ${oscillationData.directionChangeCount}`);
                }
            }
        }

        // 检测振荡模式
        this.detectOscillationPattern(ballId, currentTime);
    }

    /**
     * 检测振荡模式
     */
    private detectOscillationPattern(ballId: string, currentTime: number) {
        const oscillationData = this.ballOscillationDetection.get(ballId);
        const posHistory = this.ballPositionHistory.get(ballId);
        
        if (!oscillationData || !posHistory || posHistory.length < 10) {
            return;
        }

        // 检查是否在时间窗口内有足够的方向改变
        const timeSinceLastChange = currentTime - oscillationData.lastDirectionChange;
        if (timeSinceLastChange > this.oscillationTimeWindow) {
            // 重置计数器
            oscillationData.directionChangeCount = 0;
            oscillationData.oscillationAxis = 'none';
            return;
        }

        // 如果方向改变次数超过阈值，分析振荡轴向
        if (oscillationData.directionChangeCount >= this.directionChangeThreshold) {
            const axis = this.analyzeOscillationAxis(posHistory);
            
            if (axis !== 'none' && oscillationData.oscillationAxis === 'none') {
                // 开始振荡检测
                oscillationData.oscillationAxis = axis;
                oscillationData.oscillationStartTime = currentTime;
                
                if (this.testMode) {
                    console.log(`[防围困] 检测到小球 ${ballId.substring(0, 8)} 在${axis === 'horizontal' ? '水平' : '垂直'}方向振荡`);
                }
                
                // 触发增强防围困机制
                this.triggerEnhancedAntiTrap(ballId, axis);
            }
        }
    }

    /**
     * 分析振荡轴向
     */
    private analyzeOscillationAxis(posHistory: Vec2[]): 'horizontal' | 'vertical' | 'none' {
        if (posHistory.length < 10) {
            return 'none';
        }

        const recentPositions = posHistory.slice(-10);
        let minX = recentPositions[0].x, maxX = recentPositions[0].x;
        let minY = recentPositions[0].y, maxY = recentPositions[0].y;

        for (const pos of recentPositions) {
            minX = Math.min(minX, pos.x);
            maxX = Math.max(maxX, pos.x);
            minY = Math.min(minY, pos.y);
            maxY = Math.max(maxY, pos.y);
        }

        const xRange = maxX - minX;
        const yRange = maxY - minY;

        // 判断主要运动方向
        if (xRange > this.oscillationDistanceThreshold && yRange < this.oscillationDistanceThreshold / 2) {
            return 'horizontal';
        } else if (yRange > this.oscillationDistanceThreshold && xRange < this.oscillationDistanceThreshold / 2) {
            return 'vertical';
        }

        return 'none';
    }

    /**
     * 触发增强防围困机制
     */
    private triggerEnhancedAntiTrap(ballId: string, oscillationAxis: 'horizontal' | 'vertical') {
        const ball = this.activeBall;
        if (!ball || !ball.isValid || ball.uuid !== ballId) {
            return;
        }

        const rigidBody = ball.getComponent(RigidBody2D);
        if (!rigidBody) {
            return;
        }

        if (this.testMode) {
            console.log(`[防围困] 触发增强防围困机制 - 小球 ${ballId.substring(0, 8)}，轴向: ${oscillationAxis}`);
        }

        // 根据振荡轴向应用不同的策略
        if (oscillationAxis === 'horizontal') {
            // 水平振荡：给予垂直方向的随机冲量
            const verticalImpulse = (Math.random() - 0.5) * this.baseSpeed * 0.8;
            const newVelocity = new Vec2(rigidBody.linearVelocity.x * 0.3, verticalImpulse);
            rigidBody.linearVelocity = newVelocity;
            
            if (this.testMode) {
                console.log(`[防围困] 水平振荡处理 - 应用垂直冲量: ${verticalImpulse.toFixed(2)}`);
            }
        } else if (oscillationAxis === 'vertical') {
            // 垂直振荡：给予水平方向的随机冲量
            const horizontalImpulse = (Math.random() - 0.5) * this.baseSpeed * 0.8;
            const newVelocity = new Vec2(horizontalImpulse, rigidBody.linearVelocity.y * 0.3);
            rigidBody.linearVelocity = newVelocity;
            
            if (this.testMode) {
                console.log(`[防围困] 垂直振荡处理 - 应用水平冲量: ${horizontalImpulse.toFixed(2)}`);
            }
        }

        // 重置振荡检测数据
        const oscillationData = this.ballOscillationDetection.get(ballId);
        if (oscillationData) {
            oscillationData.directionChangeCount = 0;
            oscillationData.oscillationAxis = 'none';
        }
    }

    /**
     * 维持所有小球的恒定速度
     */
    private maintainAllBallsSpeed() {
        const balls = this.getAllActiveBalls();
        for (const ball of balls) {
            this.maintainBallSpeed(ball);
        }
    }
    
    /**
     * 维持单个小球的恒定速度
     */
    private maintainBallSpeed(ball: Node) {
        const rigidBody = ball.getComponent(RigidBody2D);
        if (!rigidBody) return;
        
        // 获取当前速度
        const currentVelocity = rigidBody.linearVelocity;
        const speed = Math.sqrt(currentVelocity.x * currentVelocity.x + currentVelocity.y * currentVelocity.y);
        
        // 如果速度过低或过高，重新设置速度以维持恒定运动
        if (speed < this.currentSpeed * 0.85 || speed > this.currentSpeed * 1.15) {
            // 保持当前方向，但调整速度大小
            if (speed > 0.1) {
                const normalizedVelocity = currentVelocity.clone().normalize();
                rigidBody.linearVelocity = new Vec2(
                    normalizedVelocity.x * this.currentSpeed,
                    normalizedVelocity.y * this.currentSpeed
                );
            } else {
                // 如果速度几乎为0，给一个随机方向
                const angle = Math.random() * Math.PI * 2;
                rigidBody.linearVelocity = new Vec2(
                    Math.cos(angle) * this.currentSpeed,
                    Math.sin(angle) * this.currentSpeed
                );
            }
        }
        
        // 更新主小球的方向向量（用于其他逻辑）
        if (ball === this.activeBall && speed > 1.0) {
            this.direction.x = currentVelocity.x / speed;
            this.direction.y = currentVelocity.y / speed;
        }
    }
    
    // 调试方法：检查小球是否接近方块但没有触发物理碰撞
    private debugCheckCounter = 0;
    private debugCheckNearBlocks() {
        this.debugCheckCounter++;
        // 每60帧（约1秒）检查一次
        if (this.debugCheckCounter % 60 !== 0) return;
        
        const ballPos = this.activeBall.worldPosition;
        if (!this.placedBlocksContainer || !this.placedBlocksContainer.isValid) return;
        
        let nearestDistance = Infinity;
        let nearestBlock = null;
        
        for (let i = 0; i < this.placedBlocksContainer.children.length; i++) {
            const block = this.placedBlocksContainer.children[i];
            if (block.name.includes('Block') || block.getChildByName('B1')) {
                const blockPos = block.worldPosition;
                const distance = Math.sqrt(
                    Math.pow(ballPos.x - blockPos.x, 2) + 
                    Math.pow(ballPos.y - blockPos.y, 2)
                );
                
                if (distance < nearestDistance) {
                    nearestDistance = distance;
                    nearestBlock = block;
                }
            }
        }
        
        if (nearestBlock && nearestDistance < 100) {
            // 检查小球的碰撞体状态
            const ballCollider = this.activeBall.getComponent(Collider2D);
            if (ballCollider) {
                if (ballCollider instanceof CircleCollider2D) {
                    // 小球碰撞半径检查
                }
            }
            
            // 检查小球的刚体状态
            const ballRigidBody = this.activeBall.getComponent(RigidBody2D);
            if (ballRigidBody) {
                // 刚体状态检查
            }
            
            // 检查最近的方块碰撞体
            const blockCollider = nearestBlock.getComponent(Collider2D);
            if (blockCollider) {
                // 方块碰撞体检查
            }
        }
    }


    // 初始化方向
    initializeDirection() {
        // 测试模式：使用完全垂直或水平方向来测试防围困机制
        if (this.testMode) {
            // 四个基本方向：上、下、左、右
            const directions = [
                { x: 0, y: 1 },   // 向上
                { x: 0, y: -1 },  // 向下
                { x: 1, y: 0 },   // 向右
                { x: -1, y: 0 }   // 向左
            ];
            
            // 随机选择一个基本方向
            const randomIndex = Math.floor(Math.random() * directions.length);
            const selectedDirection = directions[randomIndex];
            
            this.direction.x = selectedDirection.x;
            this.direction.y = selectedDirection.y;
            this.direction.normalize();
            
            console.log(`[BallController] 测试模式 - 小球初始方向: ${randomIndex === 0 ? '向上' : randomIndex === 1 ? '向下' : randomIndex === 2 ? '向右' : '向左'}`);
        } else {
            // 原始随机方向模式
            const angle = Math.random() * Math.PI * 2; // 0-2π之间的随机角度
            this.direction.x = Math.cos(angle);
            this.direction.y = Math.sin(angle);
            this.direction.normalize();
        }
        
        // 设置初始速度
        if (this.activeBall) {
            const rigidBody = this.activeBall.getComponent(RigidBody2D);
            if (rigidBody) {
                rigidBody.linearVelocity = new Vec2(
                    this.direction.x * this.currentSpeed,
                    this.direction.y * this.currentSpeed
                );
            }
        }
    }

    // 初始化球的参数 - 公开方法，供GameManager调用
    public initialize() {
        this.calculateGameBounds();
        this.createBall();
        
        // 检查方块碰撞体（延迟执行，确保方块已放置）
        this.scheduleOnce(() => {
            this.checkBlockColliders();
        }, 0.5);
    }
    
    // 启动小球 - 公开方法，在确定按钮点击后调用
    public startBall() {
        // 检查ballPrefab是否设置
        if (!this.ballPrefab) {
            console.error('[BallController] ballPrefab 未设置，无法创建小球');
            return;
        }
        
        // 如果还没有初始化，先初始化
        if (!this.initialized) {
            this.initialize();
        }
        
        // 确保小球存在且有效
        if (!this.activeBall || !this.activeBall.isValid) {
            this.createBall();
        }
        
        // 检查小球是否成功创建
        if (!this.activeBall) {
            console.error('[BallController] 小球创建失败');
            return;
        }
        
        // 重新定位小球，避免与方块重叠
        this.positionBallRandomly();
        
        // 确保物理组件设置正确
        this.setupCollider();
        
        // 初始化运动方向并开始运动
        this.initializeDirection();
        
        // 设置运动状态
        this.ballStarted = true;
        
        console.log('[BallController] 小球启动完成');
    }

    /**
     * 暂停小球运动：记录当前速度并停止刚体
     */
    public pauseBall() {
        if (this.isPaused) return;
        this.isPaused = true;
        this.ballStarted = false;

        if (this.activeBall && this.activeBall.isValid) {
            const rb = this.activeBall.getComponent(RigidBody2D);
            if (rb) {
                this.pausedVelocity = rb.linearVelocity.clone();
                rb.linearVelocity = new Vec2(0, 0);
                rb.sleep();
            }
        }
    }

    /**
     * 恢复小球运动：恢复暂停前的速度
     */
    public resumeBall() {
        if (!this.isPaused) return;
        this.isPaused = false;
        this.ballStarted = true;
        console.log('恢复小球运动');
        if (this.activeBall && this.activeBall.isValid) {
            const rb = this.activeBall.getComponent(RigidBody2D);
            if (rb) {
                rb.wakeUp();
                const hasPrevVelocity = this.pausedVelocity && (this.pausedVelocity.x !== 0 || this.pausedVelocity.y !== 0);
                if (hasPrevVelocity) {
                    rb.linearVelocity = this.pausedVelocity.clone();
                } else {
                    // 若没有记录速度，则重新初始化方向
                    this.initializeDirection();
                }
            }
        }
    }

    /**
     * 暂停所有小球运动：记录当前速度并停止所有刚体
     */
    public pauseAllBalls() {
        if (this.isPaused) return;
        this.isPaused = true;
        this.ballStarted = false;

        // 清空之前的暂停速度记录
        this.allBallsPausedVelocities.clear();

        // 暂停所有活跃小球（包括主球和任何复制/新增的小球）
        const balls = this.getAllActiveBalls();
        for (const ball of balls) {
            const rb = ball.getComponent(RigidBody2D);
            if (rb) {
                this.allBallsPausedVelocities.set(ball, rb.linearVelocity.clone());
                rb.linearVelocity = new Vec2(0, 0);
                rb.sleep();
            }
        }

        console.log(`[BallController] 已暂停 ${this.allBallsPausedVelocities.size} 个小球`);
    }

    /**
     * 恢复所有小球运动：恢复暂停前的速度
     */
    public resumeAllBalls() {
        if (!this.isPaused) return;
        this.isPaused = false;
        this.ballStarted = true;
        
        console.log(`[BallController] 恢复 ${this.allBallsPausedVelocities.size} 个小球运动`);
        
        // 恢复所有记录的小球
        for (const [ball, velocity] of this.allBallsPausedVelocities) {
            if (ball && ball.isValid) {
                const rb = ball.getComponent(RigidBody2D);
                if (rb) {
                    rb.wakeUp();
                    const hasVelocity = velocity && (velocity.x !== 0 || velocity.y !== 0);
                    if (hasVelocity) {
                        rb.linearVelocity = velocity.clone();
                    } else {
                        // 如果没有记录速度，给一个默认方向
                        if (ball === this.activeBall) {
                            this.initializeDirection();
                        } else {
                            // 额外球给一个随机方向
                            const angle = Math.random() * Math.PI * 2;
                            const speed = this.currentSpeed;
                            rb.linearVelocity = new Vec2(Math.cos(angle) * speed, Math.sin(angle) * speed);
                        }
                    }
                }
            }
        }
        
        // 清空暂停速度记录
        this.allBallsPausedVelocities.clear();
    }

    /**
     * 从给定世界坐标发射子弹
     */
    private fireBulletAt(blockNode: Node, fireWorldPos: Vec3) {
        // 检查方块节点是否有效
        if (!blockNode || !blockNode.isValid) {
            return;
        }
        
        // 检查子弹预制体是否存在
        if (!this.bulletPrefab) {
            console.warn(`[BallController] 子弹预制体未设置，无法发射`);
            return;
        }        
        
        // 查找方块中的武器节点
        const weaponNode = this.findWeaponNode(blockNode);
        if (!weaponNode) {
            const blockName = blockNode && blockNode.isValid ? blockNode.name : 'unknown';
            console.warn(`[BallController] 方块 ${blockName} 中未找到武器节点`);
        }
        
        // 传递武器节点和方块节点给createAndFireBullet方法
        this.createAndFireBullet(fireWorldPos, weaponNode, blockNode);
    }

    /**
     * 重置球控制器状态 - 游戏重置时调用
     */
    public resetBallController() {
        console.log('[BallController] 重置球控制器状态');
        
        // 停止球的运动
        this.ballStarted = false;
        this.isPaused = false;
        
        // 清理暂停状态
        this.pausedVelocity = new Vec2();
        this.allBallsPausedVelocities.clear();
        
        // 销毁当前活动的球
        if (this.activeBall && this.activeBall.isValid) {
            console.log('[BallController] 销毁当前活动的球');
            this.activeBall.destroy();
        }
        this.activeBall = null;
        
        // 销毁所有额外创建的球
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (gameArea) {
            const additionalBalls = gameArea.children.filter(child => 
                child.name === 'AdditionalBall' && child.isValid
            );
            
            for (const ball of additionalBalls) {
                console.log('[BallController] 销毁额外球:', ball.name);
                ball.destroy();
            }
            
            if (additionalBalls.length > 0) {
                console.log(`[BallController] 已清理 ${additionalBalls.length} 个额外球`);
            }
        }
        
        // 重置初始化状态
        this.initialized = false;
        
        // 清理冷却时间
        this.blockFireCooldown.clear();
        
        // 清理防围困状态数据
        this.ballHitHistory.clear();
        this.ballPhaseThrough.clear();
        this.ballDeflectionAttempts.clear();
        
        // 清理增强防围困机制的历史数据
        this.ballPositionHistory.clear();
        this.ballDirectionHistory.clear();
        this.ballOscillationDetection.clear();
        
        // 清理拖拽方块集合
        this.draggingBlocks.clear();
        
        // 重置球速
        this.updateBallSpeed();
        
        console.log('[BallController] 球控制器重置完成');
    }

    /**
     * 清理过期的防围困状态
     */
    private cleanupExpiredAntiTrapStates() {
        const currentTime = performance.now() / 1000;
        
        // 清理过期的穿透状态
        for (const [ballId, endTime] of this.ballPhaseThrough.entries()) {
            if (currentTime >= endTime) {
                this.ballPhaseThrough.delete(ballId);
            }
        }
        
        // 检查并重置长时间未频繁撞击的球的偏移尝试次数
        for (const [ballId, hitHistory] of this.ballHitHistory.entries()) {
            // 如果撞击历史为空或最近一次撞击超过时间窗口的一半，重置偏移尝试次数
            if (hitHistory.length === 0 || 
                (hitHistory.length > 0 && currentTime - hitHistory[hitHistory.length - 1] > this.antiTrapTimeWindow / 2)) {
                if (this.ballDeflectionAttempts.has(ballId)) {
                    this.ballDeflectionAttempts.set(ballId, 0);
                }
            }
        }
    }
    
    /**
     * 清理单个小球的防围困状态数据
     * @param ballId 小球的唯一标识符
     */
    public cleanupBallAntiTrapState(ballId: string) {
        this.ballHitHistory.delete(ballId);
        this.ballPhaseThrough.delete(ballId);
        this.ballDeflectionAttempts.delete(ballId);
        console.log(`Cleaned up anti-trap state for ball ${ballId}`);
    }

    onDestroy() {
        // 清理事件监听
        const eventBus = EventBus.getInstance();
        eventBus.off(GameEvents.GAME_PAUSE, this.onGamePauseEvent, this);
        eventBus.off(GameEvents.GAME_PAUSE_SKILL_SELECTION, this.onGamePauseSkillSelectionEvent, this);
        eventBus.off(GameEvents.GAME_PAUSE_BLOCK_SELECTION, this.onGamePauseBlockSelectionEvent, this);
        eventBus.off(GameEvents.GAME_RESUME, this.onGameResumeEvent, this);
        eventBus.off(GameEvents.RESET_BALL_CONTROLLER, this.onResetBallControllerEvent, this);
        eventBus.off(GameEvents.BALL_CREATE, this.onBallCreateEvent, this);
        eventBus.off(GameEvents.BALL_START, this.onBallStartEvent, this);
        eventBus.off(GameEvents.BALL_CREATE_ADDITIONAL, this.onBallCreateAdditionalEvent, this);
        eventBus.off(GameEvents.BALL_FIRE_BULLET, this.onBallFireBulletEvent, this);
        eventBus.off(GameEvents.BLOCK_DRAG_START, this.onBlockDragStartEvent, this);
        eventBus.off(GameEvents.BLOCK_DRAG_END, this.onBlockDragEndEvent, this);
        
        // 清理物理事件监听器
        const physics = PhysicsManager.getInstance()?.getSystem();
        if (physics) {
            physics.off(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
        }
        
        // 清理防围困状态数据
        this.ballHitHistory.clear();
        this.ballPhaseThrough.clear();
        this.ballDeflectionAttempts.clear();
    }

    private updateBallSpeed() {
        const skillManager = PersistentSkillManager.getInstance();
        if (skillManager) {
            this.currentSpeed = skillManager.applyBallSpeedBonus(this.baseSpeed);
        } else {
            this.currentSpeed = this.baseSpeed;
        }
    }

    // ==================== 小球位置检查机制 ====================
    
    /**
     * 获取所有活跃的小球
     * @returns 返回所有活跃小球的数组
     */
    private getAllActiveBalls(): Node[] {
        const balls: Node[] = [];
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        
        // 主球优先加入
        if (this.activeBall && this.activeBall.isValid) {
            balls.push(this.activeBall);
        }
        
        // 包含所有处于球碰撞分组的节点（不依赖名称），避免遗漏复制出的主球
        if (gameArea) {
            for (const child of gameArea.children) {
                if (!child.isValid) continue;
                if (child === this.activeBall) continue;
                const collider = child.getComponent(CircleCollider2D);
                if (collider && collider.group === this.colliderGroup) {
                    balls.push(child);
                }
            }
        }
        return balls;
    }
    
    /**
     * 检查单个小球是否在游戏区域内
     * @param ball 要检查的小球节点
     * @returns 如果小球在游戏区域内返回true，否则返回false
     */
    private checkBallPosition(ball: Node): boolean {
        if (!ball || !ball.isValid) {
            return false;
        }
        
        // 获取小球的世界坐标
        const worldPos = ball.getWorldPosition();
        
        // 计算扩展后的边界（比游戏区域稍大，避免误判）
        const extension = this.positionCheckBoundaryExtension;
        const extendedBounds = {
            left: this.gameBounds.left - extension,
            right: this.gameBounds.right + extension,
            top: this.gameBounds.top + extension,
            bottom: this.gameBounds.bottom - extension
        };
        
        // 检查小球是否在扩展边界内
        const isInBounds = worldPos.x >= extendedBounds.left && 
                          worldPos.x <= extendedBounds.right && 
                          worldPos.y >= extendedBounds.bottom && 
                          worldPos.y <= extendedBounds.top;
        
        if (!isInBounds) {
            console.warn(`[BallController] 小球 ${ball.name} 超出游戏区域:`, {
                position: { x: worldPos.x, y: worldPos.y },
                bounds: extendedBounds
            });
        }
        
        return isInBounds;
    }
    
    /**
     * 将小球重置回游戏区域
     * @param ball 要重置的小球节点
     */
    private rescueBallToGameArea(ball: Node): void {
        if (!ball || !ball.isValid) {
            return;
        }
        
        console.log(`[BallController] 正在找回小球 ${ball.name}`);
        
        // 使用与小球生成相同的安全位置设置逻辑
        this.positionBallSafely(ball);
        
        // 重新设置小球的运动方向和速度
        const rigidBody = ball.getComponent(RigidBody2D);
        if (rigidBody) {
            // 随机新的运动方向
            const angle = Math.random() * Math.PI * 2;
            const direction = new Vec2(Math.cos(angle), Math.sin(angle)).normalize();
            
            // 设置新的速度
            rigidBody.linearVelocity = new Vec2(
                direction.x * this.currentSpeed,
                direction.y * this.currentSpeed
            );
        }
        
        console.log(`[BallController] 小球 ${ball.name} 已重置到安全位置`);
    }
    
    /**
     * 为小球设置安全位置（复用生成位置逻辑）
     * @param ball 要设置位置的小球节点
     */
    private positionBallSafely(ball: Node): void {
        if (!ball) return;

        const transform = ball.getComponent(UITransform);
        const ballRadius = transform ? transform.width / 2 : this.ballRadius;
        
        // 计算可生成的范围（考虑小球半径，避免生成在边缘）
        const minX = this.gameBounds.left + ballRadius + this.edgeOffset;
        const maxX = this.gameBounds.right - ballRadius - this.edgeOffset;
        const minY = this.gameBounds.bottom + ballRadius + this.edgeOffset;
        const maxY = this.gameBounds.top - ballRadius - this.edgeOffset;

        // 获取GameArea节点
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (!gameArea) {
            return;
        }
        
        // 查找PlacedBlocks节点，它包含所有放置的方块
        if (!this.placedBlocksContainer) {
            this.setRandomPositionDefault(ball, minX, maxX, minY, maxY);
            return;
        }
        
        if (!this.placedBlocksContainer.isValid) {
            this.setRandomPositionDefault(ball, minX, maxX, minY, maxY);
            return;
        }
        
        // 获取所有已放置的方块
        const placedBlocks = [];
        for (let i = 0; i < this.placedBlocksContainer.children.length; i++) {
            const block = this.placedBlocksContainer.children[i];
            // 检查是否是方块节点（通常以Block命名或有特定标识）
            if (block.name.includes('Block') || block.getChildByName('B1')) {
                placedBlocks.push(block);
            }
        }
        
        // 如果没有方块，使用默认随机位置
        if (placedBlocks.length === 0) {
            this.setRandomPositionDefault(ball, minX, maxX, minY, maxY);
            return;
        }
        
        // 尝试找到一个不与任何方块重叠的位置
        let validPosition = false;
        let attempts = 0;
        const maxAttempts = this.maxAttempts;
        let randomX, randomY;
        
        while (!validPosition && attempts < maxAttempts) {
            // 随机生成位置
            randomX = Math.random() * (maxX - minX) + minX;
            randomY = Math.random() * (maxY - minY) + minY;
            
            // 检查是否与任何方块重叠
            let overlapping = false;
            for (const block of placedBlocks) {
                // 获取方块的世界坐标
                const blockWorldPos = block.worldPosition;
                
                // 计算小球与方块的距离
                const distance = Math.sqrt(
                    Math.pow(randomX - blockWorldPos.x, 2) + 
                    Math.pow(randomY - blockWorldPos.y, 2)
                );
                
                // 获取方块的尺寸
                const blockTransform = block.getComponent(UITransform);
                const blockSize = blockTransform ? 
                    Math.max(blockTransform.width, blockTransform.height) / 2 : this.safeDistance;
                
                // 如果距离小于小球半径+方块尺寸的一半+安全距离，认为重叠
                if (distance < ballRadius + blockSize + this.safeDistance) {
                    overlapping = true;
                    break;
                }
            }
            
            // 如果没有重叠，找到了有效位置
            if (!overlapping) {
                validPosition = true;
            }
            
            attempts++;
        }
        
        // 如果找不到有效位置，使用默认位置（游戏区域底部中心）
        if (!validPosition) {
            randomX = (this.gameBounds.left + this.gameBounds.right) / 2;
            randomY = this.gameBounds.bottom + ballRadius + this.safeDistance;
        }
        
        // 将世界坐标转换为相对于GameArea的本地坐标
        const localPos = gameArea.getComponent(UITransform).convertToNodeSpaceAR(new Vec3(randomX, randomY, 0));
        ball.position = localPos;
    }
    
    /**
     * 设置小球默认位置
     * @param ball 小球节点
     * @param minX 最小X坐标
     * @param maxX 最大X坐标
     * @param minY 最小Y坐标
     * @param maxY 最大Y坐标
     */
    private setRandomPositionDefault(ball: Node, minX: number, maxX: number, minY: number, maxY: number): void {
        const gameArea = find('Canvas/GameLevelUI/GameArea');
        if (!gameArea) return;
        
        // 随机生成位置
        const randomX = Math.random() * (maxX - minX) + minX;
        const randomY = Math.random() * (maxY - minY) + minY;
        
        // 将世界坐标转换为相对于GameArea的本地坐标
        const localPos = gameArea.getComponent(UITransform).convertToNodeSpaceAR(new Vec3(randomX, randomY, 0));
        ball.position = localPos;
    }
    
    /**
     * 检查并找回所有超出游戏区域的小球
     */
    private checkAndRescueAllBalls(): void {
        if (!this.enableBallPositionCheck) {
            return;
        }
        
        const balls = this.getAllActiveBalls();
        let rescuedCount = 0;
        
        balls.forEach(ball => {
            if (!this.checkBallPosition(ball)) {
                this.rescueBallToGameArea(ball);
                rescuedCount++;
            }
        });
        
        if (rescuedCount > 0) {
            console.log(`[BallController] 本次检查找回了 ${rescuedCount} 个小球`);
        }
    }
}