import { _decorator, BoxCollider2D, Collider2D, Component, Mat4, PolygonCollider2D, tween, Tween, UITransform, Vec2, Vec3, Node } from 'cc';
import { GEvent } from '../../mx/module/event/GEvent';
import { playTetriBlockSpine, TetriBlockSpineState } from './tetriBlockSpine';
import { tetriNode } from './tetriNode';
const { ccclass } = _decorator;
/**无重力方块，墙体。接触到其他方块会立马停住做为底板使用 
 * 
 * grouo == floor
 * 如果rigidbody2d组件存在，设置group为floor
 * 如果polygoncollider2d组件存在，设置group为floor
 * 不可升级
 *
 * 注意：地板 Collider2D 不要勾 Sensor。Sensor 只发事件不产生接触约束，动态刚体会穿透。
 * 去回弹请用 restitution=0，并由 tetriMap 里 PRE_SOLVE / 物理解算后收尾处理。
*/
@ccclass('tetriFloorNode')
export class tetriFloorNode extends Component {
    private _settled = false;
    /** 杀区销毁已进入流程，避免重复 skill 叠 tween / 双扣雷电爱心 */
    private _killSkillDispatched = false;
    _curentWeaponId: number = 0;
    /**方块配置（BattleCube 表） */
    public config: ITableBattleCube | null = null;

    /**落稳/钉住时回调（由外部注入，例如 UItetriGame 监听第一块） */
    public onSettled: (() => void) | null = null;

    /**脚本模拟下落中（floor 使用 Static，不走 Dynamic 物理） */
    private _simFallActive = false;
    private _simVy = 0;
    private _simVx = 0;
    // 掉落速度：按需求整体放慢 15 倍
    private _simGravity = -3200 / 15; // px/s^2（手感参数）
    private _simMaxFallSpeed = 1600 / 15; // px/s
    /** 钉住前相对支撑体的竖直安全间隙（px）：略抬高以减少与 Box2D 分离冲量不一致导致的“弹一下” */
    private _simSkin = 0.5;
    /**下落期：自身 PolygonCollider2D（可 disabled）用于几何检测 */
    private _selfPolyCols: PolygonCollider2D[] = [];
    /**
     * 脚本下落「阻挡」容差：纯多边形在共边/近邻时 ox/oy=0 常判成不重叠，导致贴不上边且竖直方向仍当空闲继续掉。
     * 用 AABB 在 X/Y 方向允许微小负重叠（缝隙）仍视为接触，便于侧贴与落底。
     */
    private static readonly _SIM_CONTACT_SKIN_X = 1.35;
    private static readonly _SIM_CONTACT_SKIN_Y = 0.5;
    /** 脚本下落「接触」判定时：向上少扩，减轻上方倾斜块真实多边形与膨胀盒误交（侧向/落底仍用 _SIM_CONTACT_SKIN_*） */
    private static readonly _FALL_CONTACT_UP_PAD = 0.12;
    /** 钉住前为消除穿插而微抬：上限过小会叠模，过大易与「地面」子树装饰体严格重叠后一路抬成悬空 */
    private static readonly _PIN_SEPARATE_MAX_RISE_PX = 10;

    /** onLoad 前已请求脚本下落（inactive 入树时 onLoad 晚于 beginPlacementFall） */
    private _placementFallPending = false;
    private _stackSupportStable = false;

    public setConfig(cfg: ITableBattleCube | null) {
        this.config = cfg;
        this._curentWeaponId = cfg?.weaponid ?? 0;
    }

    protected onLoad(): void {
        if (this._placementFallPending) {
            this._settled = false;
            this._simFallActive = true;
            this._simVy = 0;
            this._simVx = 0;
        } else {
            // 默认视为“已稳定”（例如卡牌展示态）；放置到地图时由 beginPlacementFall() 解锁并开始下落
            this._settled = true;
            this._simFallActive = false;
            this._simVy = 0;
            this._simVx = 0;
        }
        this._ensureFloorCollidersSolidNoBounce();
        this.scheduleOnce(() => {
            if (!this.node?.isValid) return;
            if (!this._settled || this._simFallActive) return;
            playTetriBlockSpine(this.node, TetriBlockSpineState.Shop);
        }, 0);
    }

    /** 实体地板：必须可阻挡 Dynamic 刚体；回弹由 restitution + 地图侧逻辑处理，不能用 Sensor 代替 */
    private _ensureFloorCollidersSolidNoBounce(): void {
        if (!this.node?.isValid) return;
        const cols = this.node.getComponentsInChildren(Collider2D) ?? [];
        for (const c of cols) {
            if (!c?.isValid) continue;
            c.sensor = false;
            c.restitution = 0;
        }
    }

    setView(){
        //let conf = gg.data.project.getWeaponData(this._curentWeaponId)
        // console.log('tetriFloorNode conf',conf)
        
        
    }

    get isSettled(): boolean { return this._settled; }
    public hasStackSupportStable(): boolean { return this._stackSupportStable; }
    /**是否正在脚本下落（用于 tetriMap 在 contact 时判定立即钉住） */
    public get isSimFalling(): boolean { return this._simFallActive && !this._settled; }

    /**开始脚本模拟下落：下落期间禁用 collider，命中支撑后启用并钉住 */
    public startSimulatedFall(): void {
        if (!this.node?.isValid) return;
        if (this._settled) return;
        this._simFallActive = true;
        this._simVy = 0;
        this._simVx = 0;
        // 下落期：floor 不进入物理世界（避免移动静态 collider 造成其他动态体“提前 contact”）
        // 但我们仍用 polygon points 做几何重叠检测，因此缓存 collider 并禁用 enabled
        this._selfPolyCols = this.node.getComponentsInChildren(PolygonCollider2D) ?? [];
        for (const c of this._selfPolyCols) {
            if (c?.isValid) c.enabled = false;
        }
    }

    /**放置到地图：解锁“未企稳”并开始脚本下落 */
    public beginPlacementFall(): void {
        if (!this.node?.isValid) return;
        this._placementFallPending = true;
        this._settled = false;
        playTetriBlockSpine(this.node, TetriBlockSpineState.Falling);
        this.startSimulatedFall();
    }

    /**
     * 已在 TetrisTable 上摆好、但尚未 beginPlacementFall（如章1引导：镜头动画后再下落）。
     * onLoad 默认 _settled=true 会给“卡牌展示”用，摆在桌上时若不调用本方法，堆高/白线会把悬空地块算进塔高。
     */
    public markAwaitingScriptFallStart(): void {
        this._settled = false;
        this._simFallActive = false;
        this._simVy = 0;
        this._simVx = 0;
    }

    private _isSelfColliderNode(n: Node | null): boolean {
        let cur: Node | null = n;
        while (cur) {
            if (cur === this.node) return true;
            cur = cur.parent;
        }
        return false;
    }

    /**
     * 在已几何分离的位置基础上，尽量向上取一点余量（不超过 _simSkin），
     * 使启用物理碰撞体时不易与下方动态块产生“穿透→分离”的上顶冲量。
     */
    private _applyVerticalSlackAboveSupport(baseWorldY: number, anchorWorldX: number): void {
        const maxExtra = Math.max(0, this._simSkin);
        let chosen = 0;
        for (let extra = maxExtra; extra >= 0; extra -= 0.5) {
            this.node.setWorldPosition(new Vec3(anchorWorldX, baseWorldY + extra, this.node.worldPosition.z));
            if (!this._isOverlappingAnyOtherCollider()) {
                chosen = extra;
                break;
            }
        }
        this.node.setWorldPosition(new Vec3(anchorWorldX, baseWorldY + chosen, this.node.worldPosition.z));
    }

    private _pinNow(): void {
        if (this._settled) return;
        this._settled = true;
        this._placementFallPending = false;
        this._simFallActive = false;
        this._simVy = 0;
        this._simVx = 0;
        playTetriBlockSpine(this.node, TetriBlockSpineState.Settled);
        if (this._isOverlappingSupportOnTaizi()) {
            this._stackSupportStable = true;
        } else {
            this._inheritStackSupportFromTableOverlap();
        }
        if (this._stackSupportStable) {
            const map = (gg as any)?.game?.CurentBattle?.TetraMap;
            map?.invalidateStackTopCache?.();
            map?._updateHighLine?.();
        }

        this.scheduleOnce(() => {
            if (!this.node?.isValid) return;
            const map = (gg as any)?.game?.CurentBattle?.TetraMap;
            if (map?.pinFloor) {
                map.pinFloor(this.node);
            } else {
                this.enablePhysicsColliders();
                try { this.onSettled?.(); } catch (e) { console.error(e); }
            }
        }, 0);
    }

    /** 由 tetriMap.pinFloor 在邻域消冲完成后再调用，避免碰撞体 cold-enable 嵌入 Dynamic 塔 */
    public enablePhysicsColliders(): void {
        if (!this.node?.isValid) return;
        this._ensureFloorCollidersSolidNoBounce();
        const cols = this.node.getComponentsInChildren(PolygonCollider2D) ?? [];
        for (const c of cols) {
            if (c?.isValid) c.enabled = true;
        }
    }

    /**触摸推动：仅在脚本下落期生效（与 tetriMap 的触摸控制配合） */
    public applySimTouchPush(dir: number, deltaVelX: number, maxVelX: number): void {
        if (!this.isSimFalling) return;
        const d = dir < 0 ? -1 : 1;
        const next = this._simVx + d * deltaVelX;
        const hardMax = Math.abs(maxVelX);
        this._simVx = Math.max(-hardMax, Math.min(hardMax, next));
    }

    /**点击式横移：每次触发立刻横向挪动一段距离（更符合“点一下就动一下”的手感） */
    public nudgeSimX(dir: number, stepPx: number): void {
        if (!this.isSimFalling) return;
        const d = dir < 0 ? -1 : 1;
        const step = Math.abs(stepPx);
        if (!(step > 0)) return;
        this.applySimDeltaXWithCollision(d * step);
    }

    /**
     * 横向位移：按小步推进，碰到其它已启用碰撞体则停在贴边位置（脚本下落期自身 collider 禁用，用多边形几何判断）。
     * 供 tetriMap 做「与放置相同的网格横移」等自定义位移。
     */
    public applySimDeltaXWithCollision(deltaX: number): void {
        if (!this.node?.isValid || !(Math.abs(deltaX) > 1e-6)) return;
        const sign = deltaX > 0 ? 1 : -1;
        let remaining = Math.abs(deltaX);
        const maxStep = 0.5;
        while (remaining > 1e-6) {
            const step = Math.min(maxStep, remaining);
            const wp = this.node.worldPosition;
            const tryX = wp.x + sign * step;
            this.node.setWorldPosition(new Vec3(tryX, wp.y, wp.z));
            if (this._isSimFallGeomBlocked()) {
                this.node.setWorldPosition(wp);
                break;
            }
            remaining -= step;
        }
    }

    /**
     * 仅与台子/堆叠子树做严格重叠（钉住前微抬用）。
     * 若并入 _groundTable，易与「地面」装饰多边形严格相交，为分离会大幅上抬 → floorNode 悬空。
     */
    private _overlapStrictSupportStackOnly(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const roots: Node[] = [];
        if (map?._tetrisTable?.isValid) roots.push(map._tetrisTable);
        if (map?._floorTaizi?.isValid) roots.push(map._floorTaizi);
        return roots.length ? this._overlapCollidersUnderRoots(roots, 0, 0) : false;
    }

    /**
     * 落稳前：若与台子/堆叠仍严格重叠，沿竖直微抬直到分离（上限很小，避免为躲地面子树碰撞体被抬飞）。
     */
    private _separateVerticallyIfOverlapping(maxRisePx: number = tetriFloorNode._PIN_SEPARATE_MAX_RISE_PX): void {
        if (!this.node?.isValid) return;
        const step = 0.25;
        let risen = 0;
        while (risen < maxRisePx && this._overlapStrictSupportStackOnly()) {
            const w = this.node.worldPosition;
            this.node.setWorldPosition(new Vec3(w.x, w.y + step, w.z));
            risen += step;
        }
    }

    /**松手：清空水平速度，避免持续横移 */
    public endSimTouchPush(): void {
        if (!this.isSimFalling) return;
        this._simVx = 0;
    }

    private _isSelfNodeOrChild(n: Node | null): boolean {
        let cur: Node | null = n;
        while (cur) {
            if (cur === this.node) return true;
            cur = cur.parent;
        }
        return false;
    }

    private _cross(ax: number, ay: number, bx: number, by: number): number {
        return ax * by - ay * bx;
    }

    private _segmentsIntersect(a1: Vec2, a2: Vec2, b1: Vec2, b2: Vec2): boolean {
        const abx = a2.x - a1.x;
        const aby = a2.y - a1.y;
        const acx = b1.x - a1.x;
        const acy = b1.y - a1.y;
        const adx = b2.x - a1.x;
        const ady = b2.y - a1.y;
        const cdx = b2.x - b1.x;
        const cdy = b2.y - b1.y;
        const cax = a1.x - b1.x;
        const cay = a1.y - b1.y;
        const cbx = a2.x - b1.x;
        const cby = a2.y - b1.y;
        const d1 = this._cross(abx, aby, acx, acy);
        const d2 = this._cross(abx, aby, adx, ady);
        const d3 = this._cross(cdx, cdy, cax, cay);
        const d4 = this._cross(cdx, cdy, cbx, cby);
        return d1 * d2 <= 0 && d3 * d4 <= 0;
    }

    private _pointInPolygon(pt: Vec2, poly: Vec2[]): boolean {
        let inside = false;
        for (let i = 0, j = poly.length - 1; i < poly.length; j = i++) {
            const xi = poly[i].x;
            const yi = poly[i].y;
            const xj = poly[j].x;
            const yj = poly[j].y;
            const intersect = ((yi > pt.y) !== (yj > pt.y))
                && (pt.x < (xj - xi) * (pt.y - yi) / ((yj - yi) || 1e-6) + xi);
            if (intersect) inside = !inside;
        }
        return inside;
    }

    private _getPolyWorldPoints(col: PolygonCollider2D): Vec2[] | null {
        if (!col?.node?.isValid) return null;
        const pts = col.points ?? [];
        if (pts.length < 3) return null;
        const wm = new Mat4();
        col.node.getWorldMatrix(wm);
        const out: Vec2[] = [];
        const wp = new Vec3();
        for (const p of pts) {
            Vec3.transformMat4(wp, new Vec3(p.x, p.y, 0), wm);
            out.push(new Vec2(wp.x, wp.y));
        }
        return out.length >= 3 ? out : null;
    }

    private _getBoxWorldPoints(col: BoxCollider2D): Vec2[] | null {
        if (!col?.node?.isValid) return null;
        // Cocos Creator BoxCollider2D：offset + size（本地坐标），再用节点 worldMatrix 转到世界坐标
        const size = (col as any).size as { x: number; y: number } | null;
        if (!size) return null;
        const hx = (size.x ?? 0) / 2;
        const hy = (size.y ?? 0) / 2;
        if (!(hx > 0) || !(hy > 0)) return null;
        const off = (col as any).offset as { x: number; y: number } | null;
        const ox = off?.x ?? 0;
        const oy = off?.y ?? 0;

        const wm = new Mat4();
        col.node.getWorldMatrix(wm);
        const wp = new Vec3();
        const out: Vec2[] = [];
        const corners = [
            new Vec3(ox - hx, oy - hy, 0),
            new Vec3(ox + hx, oy - hy, 0),
            new Vec3(ox + hx, oy + hy, 0),
            new Vec3(ox - hx, oy + hy, 0),
        ];
        for (const c of corners) {
            Vec3.transformMat4(wp, c, wm);
            out.push(new Vec2(wp.x, wp.y));
        }
        return out;
    }

    private _polygonsOverlap(a: Vec2[], b: Vec2[]): boolean {
        if (a.length < 3 || b.length < 3) return false;
        // 轴对齐粗测：分离则不可能相交，避免边测试在共线/浮点下的误判牵连远处形状
        const aa = this._aabbFromPoly(a);
        const ab = this._aabbFromPoly(b);
        if (aa.maxX < ab.minX || ab.maxX < aa.minX || aa.maxY < ab.minY || ab.maxY < aa.minY) return false;
        // 边相交
        for (let i = 0; i < a.length; i++) {
            const a1 = a[i];
            const a2 = a[(i + 1) % a.length];
            for (let j = 0; j < b.length; j++) {
                const b1 = b[j];
                const b2 = b[(j + 1) % b.length];
                if (this._segmentsIntersect(a1, a2, b1, b2)) return true;
            }
        }
        // 包含
        if (this._pointInPolygon(a[0], b)) return true;
        if (this._pointInPolygon(b[0], a)) return true;
        return false;
    }

    private _aabbFromPoly(poly: Vec2[]): { minX: number; minY: number; maxX: number; maxY: number } {
        let minX = poly[0].x;
        let maxX = poly[0].x;
        let minY = poly[0].y;
        let maxY = poly[0].y;
        for (let i = 1; i < poly.length; i++) {
            const p = poly[i];
            if (p.x < minX) minX = p.x;
            if (p.x > maxX) maxX = p.x;
            if (p.y < minY) minY = p.y;
            if (p.y > maxY) maxY = p.y;
        }
        return { minX, minY, maxX, maxY };
    }

    /** 多边形在「y <= yMax」半平面内的部分（Sutherland–Hodgman 单边裁剪），用于取下沿真实占地，避免凹形整体 AABB 角点误触地 */
    private _clipPolygonHalfPlaneYMax(poly: Vec2[], yMax: number): Vec2[] {
        if (poly.length < 2) return [];
        const inside = (p: Vec2) => p.y <= yMax;
        const intersectY = (a: Vec2, b: Vec2): Vec2 => {
            const dy = b.y - a.y;
            if (Math.abs(dy) < 1e-9) return new Vec2(b.x, yMax);
            const t = (yMax - a.y) / dy;
            return new Vec2(a.x + (b.x - a.x) * t, yMax);
        };
        const out: Vec2[] = [];
        let prev = poly[poly.length - 1];
        let prevIn = inside(prev);
        for (let i = 0; i < poly.length; i++) {
            const cur = poly[i];
            const curIn = inside(cur);
            if (curIn) {
                if (!prevIn) out.push(intersectY(prev, cur));
                out.push(cur);
            } else if (prevIn) {
                out.push(intersectY(prev, cur));
            }
            prev = cur;
            prevIn = curIn;
        }
        return out;
    }

    /**
     * 竖直方向「容差接触」用的 AABB：取自多边形最下一小段真实形状，而不是整体外接矩形（T/L 形角上无砖处不会伸到地面）。
     */
    private _fallContactSkinAabbFromPoly(selfPoly: Vec2[], skinX: number, skinY: number, upPad: number): { minX: number; minY: number; maxX: number; maxY: number } | null {
        if (selfPoly.length < 3) return null;
        let minY = selfPoly[0].y;
        for (let i = 1; i < selfPoly.length; i++) {
            const y = selfPoly[i].y;
            if (y < minY) minY = y;
        }
        const band = Math.max(skinY, tetriFloorNode._SIM_CONTACT_SKIN_Y) + 2;
        const clipped = this._clipPolygonHalfPlaneYMax(selfPoly, minY + band);
        if (clipped.length < 2) return null;
        const a = this._aabbFromPoly(clipped);
        if (!(a.maxX >= a.minX && a.maxY >= a.minY)) return null;
        return {
            minX: a.minX - skinX,
            maxX: a.maxX + skinX,
            minY: a.minY - skinY,
            maxY: a.maxY + upPad,
        };
    }

    /** 轴对齐矩形与凸多边形是否相交（含边相交、顶点在内） */
    private _aabbIntersectsPolygon(aabb: { minX: number; minY: number; maxX: number; maxY: number }, poly: Vec2[]): boolean {
        if (poly.length < 3) return false;
        const { minX, minY, maxX, maxY } = aabb;
        for (const p of poly) {
            if (p.x >= minX && p.x <= maxX && p.y >= minY && p.y <= maxY) return true;
        }
        const ax = [
            new Vec2(minX, minY),
            new Vec2(maxX, minY),
            new Vec2(maxX, maxY),
            new Vec2(minX, maxY),
        ];
        for (let k = 0; k < 4; k++) {
            if (this._pointInPolygon(ax[k], poly)) return true;
        }
        for (let i = 0; i < poly.length; i++) {
            const p1 = poly[i];
            const p2 = poly[(i + 1) % poly.length];
            for (let j = 0; j < 4; j++) {
                if (this._segmentsIntersect(p1, p2, ax[j], ax[(j + 1) % 4])) return true;
            }
        }
        return false;
    }

    /**
     * 多边形真实重叠，或「self 的 AABB 按 skin 外扩」与对方真实多边形相交（共边/近邻容差）。
     * 旧实现用双方 AABB 做容差：倾斜块的世界 AABB 远大于外形，会把远处下落的 floor 误挡停。
     * fallContactTightUp：竖直下落时少扩「顶边」，避免与堆叠上方斜块的多边形误交；支撑面侧贴仍用对称外扩。
     */
    private _pairGeomBlockReason(
        selfPoly: Vec2[],
        otherPoly: Vec2[],
        skinX: number,
        skinY: number,
        fallContactTightUp = false,
        skinBottomFootprint = false,
    ): 'polygonsStrictOverlap' | 'skinBottomFootprintAabb' | 'skinExpandedSelfAabb' | null {
        if (this._polygonsOverlap(selfPoly, otherPoly)) return 'polygonsStrictOverlap';
        if (!(skinX > 0 || skinY > 0)) return null;
        const upPad = fallContactTightUp ? tetriFloorNode._FALL_CONTACT_UP_PAD : skinY;
        if (fallContactTightUp && skinBottomFootprint) {
            const exp = this._fallContactSkinAabbFromPoly(selfPoly, skinX, skinY, upPad);
            if (exp && this._aabbIntersectsPolygon(exp, otherPoly)) return 'skinBottomFootprintAabb';
            return null;
        }
        const a = this._aabbFromPoly(selfPoly);
        const exp = {
            minX: a.minX - skinX,
            maxX: a.maxX + skinX,
            minY: a.minY - skinY,
            maxY: a.maxY + upPad,
        };
        if (this._aabbIntersectsPolygon(exp, otherPoly)) return 'skinExpandedSelfAabb';
        return null;
    }

    private _pairGeomBlocking(
        selfPoly: Vec2[],
        otherPoly: Vec2[],
        skinX: number,
        skinY: number,
        fallContactTightUp = false,
        skinBottomFootprint = false,
    ): boolean {
        return this._pairGeomBlockReason(selfPoly, otherPoly, skinX, skinY, fallContactTightUp, skinBottomFootprint) !== null;
    }

    /**
     * 部分地图「地面」节点仅有 UITransform+Sprite，子树无 Collider2D；脚本下落只扫碰撞体会漏掉宽阔地表，方块会从视觉地面穿下去。
     * 在允许时，用地面 UITransform 的世界轴对齐盒当作额外挡板（仅用于下落/支撑判定，不用于击杀区严格重叠）。
     */
    private _getGroundTableUiWorldPolygon(): Vec2[] | null {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const gt = map?._groundTable;
        if (!gt?.isValid) return null;
        const gut = gt.getComponent(UITransform);
        if (!gut?.isValid) return null;
        const bb = gut.getBoundingBoxToWorld();
        const x0 = bb.xMin;
        const x1 = bb.xMax;
        const y0 = bb.yMin;
        const y1 = bb.yMax;
        if (!(x1 > x0) || !(y1 > y0)) return null;
        return [
            new Vec2(x0, y0),
            new Vec2(x1, y0),
            new Vec2(x1, y1),
            new Vec2(x0, y1),
        ];
    }

    /**
     * 与指定根节点子树内已启用的 2D 碰撞体是否阻挡（不含自身）。
     * skin 为 0 时仅多边形重叠；大于 0 时额外用 AABB 接触容差。
     * fallContactTightUp 为 true 时仅用于「竖直下落挡停」：顶边少扩，减轻斜块误挡。
     * skinBottomFootprint 为 true 时（与 fallContactTightUp 同时使用）：容差盒取自最下沿带状真实形状，避免 T/L 形整体 AABB 空角误触地；横向推动应传 false 以保留侧向 skin。
     * allowGroundUiFootprint：对 TetraMap._groundTable 额外用 UITransform 世界盒参与阻挡（见 _getGroundTableUiWorldPolygon）。
     */
    private _overlapCollidersUnderRoots(
        roots: Node[],
        skinX = 0,
        skinY = 0,
        fallContactTightUp = false,
        skinBottomFootprint = false,
        allowGroundUiFootprint = false,
    ): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const selfCols = this._selfPolyCols?.length ? this._selfPolyCols : (this.node.getComponentsInChildren(PolygonCollider2D) ?? []);
        const selfPolys: Vec2[][] = [];
        for (const c of selfCols) {
            if (!c?.isValid) continue;
            const p = this._getPolyWorldPoints(c);
            if (p) selfPolys.push(p);
        }
        if (!selfPolys.length) {
            for (const bc of this.node.getComponentsInChildren(BoxCollider2D) ?? []) {
                if (!bc?.isValid) continue;
                const bp = this._getBoxWorldPoints(bc);
                if (bp) selfPolys.push(bp);
            }
        }
        if (!selfPolys.length) return false;

        const useRoots = roots.filter((n) => n?.isValid);
        if (!useRoots.length) return false;

        for (const r of useRoots) {
            const polyOthers = r.getComponentsInChildren(PolygonCollider2D) ?? [];
            for (const oc of polyOthers) {
                if (!oc?.isValid || !oc.enabled || oc.sensor) continue;
                if (this._isSelfNodeOrChild(oc.node)) continue;
                const op = this._getPolyWorldPoints(oc);
                if (!op) continue;
                for (const sp of selfPolys) {
                    if (this._pairGeomBlocking(sp, op, skinX, skinY, fallContactTightUp, skinBottomFootprint)) return true;
                }
            }
            const boxOthers = r.getComponentsInChildren(BoxCollider2D) ?? [];
            for (const bc of boxOthers) {
                if (!bc?.isValid || !(bc as any).enabled || (bc as any).sensor) continue;
                if (this._isSelfNodeOrChild(bc.node)) continue;
                const bp = this._getBoxWorldPoints(bc);
                if (!bp) continue;
                for (const sp of selfPolys) {
                    if (this._pairGeomBlocking(sp, bp, skinX, skinY, fallContactTightUp, skinBottomFootprint)) return true;
                }
            }
            if (allowGroundUiFootprint && r === map?._groundTable) {
                const gp = this._getGroundTableUiWorldPolygon();
                if (gp) {
                    for (const sp of selfPolys) {
                        if (this._pairGeomBlocking(sp, gp, skinX, skinY, fallContactTightUp, skinBottomFootprint)) return true;
                    }
                }
            }
        }
        return false;
    }

    /**
     * 脚本下落几何检测根节点：只用「玩法碰撞」子树。
     * 不要挂整棵 GameRoot（含 UI/特效/无关 Box），否则会误挡后走 _pinNow 悬空钉住。
     */
    private _simFallStrictRoots(): Node[] {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const roots: Node[] = [];
        if (map?._groundTable?.isValid) roots.push(map._groundTable);
        if (map?._tetrisTable?.isValid) roots.push(map._tetrisTable);
        if (map?._floorTaizi?.isValid) roots.push(map._floorTaizi);
        if (!roots.length) {
            const scene = this.node.scene;
            if (scene?.isValid) roots.push(scene);
        }
        return roots;
    }

    /** 自身多边形在世界坐标的最小 Y（用于判断是否与地面尚无可信接触） */
    private _getSelfPolyWorldMinY(): number | null {
        const cols = this._selfPolyCols?.length ? this._selfPolyCols : (this.node.getComponentsInChildren(PolygonCollider2D) ?? []);
        let best = Number.POSITIVE_INFINITY;
        for (const c of cols) {
            if (!c?.isValid) continue;
            const pts = this._getPolyWorldPoints(c);
            if (!pts) continue;
            for (let i = 0; i < pts.length; i++) {
                const y = pts[i].y;
                if (y < best) best = y;
            }
        }
        for (const bc of this.node.getComponentsInChildren(BoxCollider2D) ?? []) {
            if (!bc?.isValid) continue;
            const pts = this._getBoxWorldPoints(bc);
            if (!pts) continue;
            for (let i = 0; i < pts.length; i++) {
                const y = pts[i].y;
                if (y < best) best = y;
            }
        }
        return Number.isFinite(best) ? best : null;
    }

    /**
     * 方块整体明显高于「地面上沿」时，不参与地面相关的几何挡停/容差检测。
     * 否则地面碰撞体 + skin 可能在空中误挡；竖直分支若又判不成 stack 支撑且非 kill，会整帧 return 导致卡住（松手后连点左右更明显）。
     */
    private _shouldIncludeGroundInGeomQueries(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const gt = map?._groundTable;
        if (!gt?.isValid) return true;
        let groundTop = gt.worldPosition.y;
        const gut = gt.getComponent(UITransform);
        if (gut?.isValid) {
            groundTop = gut.getBoundingBoxToWorld().yMax;
        }
        const minY = this._getSelfPolyWorldMinY();
        if (minY == null) return true;
        const cell = map?.blockHeight ?? 36;
        return minY <= groundTop + cell * 4;
    }

    /** 脚本下落用的几何根：可能剔除地面，避免高空误挡 */
    private _simFallGeomRoots(): Node[] {
        const raw = this._simFallStrictRoots();
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const gt = map?._groundTable;
        if (!gt?.isValid || !this._shouldIncludeGroundInGeomQueries()) {
            return raw.filter((n) => n?.isValid && n !== gt);
        }
        return raw;
    }

    /**
     * 脚本下落：应被地形/方块挡住的判定（严格多边形 或 与方块/台子的接触容差）。
     * @param verticalFallStep 为 true 时竖直子步：skin 用底部真实占地，避免凹形整体 AABB 悬停。
     */
    private _isSimFallGeomBlocked(verticalFallStep = false): boolean {
        const roots = this._simFallGeomRoots();
        if (!roots.length) return false;
        if (this._overlapCollidersUnderRoots(roots, 0, 0, false, false, true)) return true;
        const sx = tetriFloorNode._SIM_CONTACT_SKIN_X;
        const sy = tetriFloorNode._SIM_CONTACT_SKIN_Y;
        return this._overlapCollidersUnderRoots(roots, sx, sy, true, verticalFallStep, true);
    }

    /** 严格多边形重叠（钉住后分离、旧逻辑兼容） */
    private _isOverlappingAnyOtherCollider(): boolean {
        const roots = this._simFallGeomRoots();
        if (!roots.length) return false;
        return this._overlapCollidersUnderRoots(roots, 0, 0);
    }

    /**
     * 与堆叠区 / 台子：重叠或接触容差 → 钉住当底板。
     * 不含「地面」：碰到地面与动态块一样销毁（见 _isOverlappingKillSurfaces）。
     */
    private _isOverlappingSupportSurfaces(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const roots: Node[] = [];
        if (map?._tetrisTable?.isValid) roots.push(map._tetrisTable);
        if (map?._floorTaizi?.isValid) roots.push(map._floorTaizi);
        const sx = tetriFloorNode._SIM_CONTACT_SKIN_X;
        const sy = tetriFloorNode._SIM_CONTACT_SKIN_Y;
        return roots.length ? this._overlapCollidersUnderRoots(roots, sx, sy, true, true) : false;
    }

    private _isOverlappingSupportOnTaizi(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        if (!map?._floorTaizi?.isValid) return false;
        const sx = tetriFloorNode._SIM_CONTACT_SKIN_X;
        const sy = tetriFloorNode._SIM_CONTACT_SKIN_Y;
        return this._overlapCollidersUnderRoots([map._floorTaizi], sx, sy, true, true);
    }

    /** 钉在已有稳定塔顶的无重力板才计入堆高 */
    private _inheritStackSupportFromTableOverlap(): void {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        const table = map?._tetrisTable;
        if (!table?.isValid) return;
        for (const child of table.children) {
            if (!child?.isValid || child === this.node) continue;
            const t = child.getComponent(tetriNode) ?? child.getComponentInChildren(tetriNode);
            if (t?.hasStackSupportStable()) {
                this._stackSupportStable = true;
                return;
            }
            const f = child.getComponent(tetriFloorNode) ?? child.getComponentInChildren(tetriFloorNode);
            if (f && f !== this && f.hasStackSupportStable()) {
                this._stackSupportStable = true;
                return;
            }
        }
    }

    /**
     * 销毁区：地面（与脚本挡停同一套：真实碰撞体 + UI 合成地表 + skin）→ 与 tetriMap 里普通块碰地面一致，红闪 + skill。
     * 怪物/落出区：仍仅严格重叠，避免容差误触杀区。
     */
    private _isOverlappingKillSurfaces(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        if (map?._monsterTable?.isValid) {
            if (this._overlapCollidersUnderRoots([map._monsterTable], 0, 0)) return true;
        }
        if (map?._groundTable?.isValid && this._shouldIncludeGroundInGeomQueries()) {
            const sx = tetriFloorNode._SIM_CONTACT_SKIN_X;
            const sy = tetriFloorNode._SIM_CONTACT_SKIN_Y;
            if (this._overlapCollidersUnderRoots([map._groundTable], sx, sy, true, true, true)) return true;
        }
        return false;
    }

    /** 仅与「移除用地面」重叠（不含怪物区），用于雷电副本爱心 */
    private _isOverlappingRemovalGroundOnly(): boolean {
        const map = (gg as any)?.game?.CurentBattle?.TetraMap;
        if (!map?._groundTable?.isValid || !this._shouldIncludeGroundInGeomQueries()) return false;
        const sx = tetriFloorNode._SIM_CONTACT_SKIN_X;
        const sy = tetriFloorNode._SIM_CONTACT_SKIN_Y;
        return this._overlapCollidersUnderRoots([map._groundTable], sx, sy, true, true, true);
    }
    
    protected onEnable(): void {
        // 锤子点选改由 UItetriGame 遮罩拾取；不再挂节点 TOUCH
    }

    protected onDisable(): void {
        this.unregisterTouchEvent();
    }

    //注册触摸事件（空实现，避免旧事件）
    registerTouchEvent(){
        this.unregisterTouchEvent();
    }
    unregisterTouchEvent(){
        this.node.off(Node.EventType.TOUCH_END, this.click_btnEnd, this);
    }


    /** 供锤子遮罩命中后调用 */
    click_btnEnd(){
        if(!gg.game.CurentBattle.IsUseShovel){
            return
        }


        //播放动画节点销毁
        gg.game.CurentBattle.gameShovelNum--
        gg.game.CurentBattle.IsUseShovel = false
        gg.game.CurentBattle.subCoinNum(gg.game.CurentBattle.GameShovelCoin)
        gg.sdk.reportDY("inLevel", `章节${gg.game.CurentBattle.getReportDYChapterId()}_${gg.game.CurentBattle.CurentWaveNum}-使用锤子`)
        GEvent.Ins.emit(GEvent.TetriGameCancelUseShovel)
        const cutY = this.node?.worldPosition.y ?? Number.NEGATIVE_INFINITY;
        const map = gg.game.CurentBattle?.TetraMap;
        // 敲掉无重力板：解冻其下沿到「下一层无重力板」之间的普通块；更上层仍由剩余无重力板托住
        map?.wakeFrozenStackPhysics(cutY - 40, this.node);
        map?.invalidateStackTopCache?.();
        this.node.destroy();
        map?.refreshHighLineFromStack?.();
    }

    update(dt: number): void {
        if (!this._simFallActive || this._settled) return;
        if (!this.node?.isValid) return;
        if (dt <= 0) return;

        // 强制确保下落期自身 collider 不进入物理世界（防止外部误启用导致冲量）
        if (this._selfPolyCols?.length) {
            for (const c of this._selfPolyCols) {
                if (c?.isValid && c.enabled) c.enabled = false;
            }
        }

        // 水平移动：触摸推动（与普通块的 rb.linearVelocity 类似的“速度推进”手感），与其它方块/地形做几何阻挡
        if (this._simVx !== 0) {
            this.applySimDeltaXWithCollision(this._simVx * dt);
        }

        // 积分速度
        this._simVy += this._simGravity * dt;
        if (this._simVy < -this._simMaxFallSpeed) this._simVy = -this._simMaxFallSpeed;

        // 计算本帧下落位移（只往下）
        const dy = this._simVy * dt;
        if (dy >= 0) return;

        // 子步进下落：避免一次 dy 过大导致“启用 collider 时仍有穿插”，从而把其他刚体顶开形成冲量感
        const p0 = this.node.worldPosition;
        const total = -dy; // 向下距离（正数）
        const step = 2; // px，每步最大下落距离（越小越不容易与物理引擎判定不一致）
        const n = Math.max(1, Math.ceil(total / step));
        const per = total / n;

        let curY = p0.y;
        for (let i = 0; i < n; i++) {
            curY -= per;
            this.node.setWorldPosition(new Vec3(p0.x, curY, p0.z));
            if (this._isSimFallGeomBlocked(true)) {
                // 竖直子步：严格多边形 + 底部带状 skin（横向推动仍用整体 AABB skin 便于侧贴）
                // 区分：堆叠/台子 → 钉住；严格落入杀区 → 销毁
                const support = this._isOverlappingSupportSurfaces();
                const kill = this._isOverlappingKillSurfaces();
                this.node.setWorldPosition(new Vec3(p0.x, curY + per, p0.z));
                if (support) {
                    this._separateVerticallyIfOverlapping();
                    this._pinNow();
                    return;
                }
                if (kill) {
                    const map = (gg as any)?.game?.CurentBattle?.TetraMap;
                    const ln = this._isOverlappingRemovalGroundOnly() && map?._groundTable ? map._groundTable : null;
                    try { map?.showFloorRedFlash?.(ln); } catch (e) { console.error(e); }
                    this.skill();
                    return;
                }
                // 误挡（例如旧版地面 skin 高空误判）：勿 return 整帧 update，否则垂直速度一直累积却永不位移 → 悬空卡死
                break;
            }
        }

        // 安全兜底：掉出太远则直接销毁（与 _showFloorRedFlash 统一：雷电爱心）
        if (this.node.worldPosition.y < -2000) {
            const map = (gg as any)?.game?.CurentBattle?.TetraMap;
            try { map?.showFloorRedFlash?.(map?._groundTable ?? null); } catch (e) { console.error(e); }
            this.node.destroy();
        }
    }

    skill(){
        if (this._killSkillDispatched) return;
        this._killSkillDispatched = true;

        this._settled = true;
        
       
        this.scheduleOnce(()=>{
            if (!this.node?.isValid) return;
            let box = this.node.getComponent(PolygonCollider2D) ?? this.node.getComponentInChildren(PolygonCollider2D);
            if (box) {
                //取消碰撞
                box.enabled = false;
               
            }
            
            // floorNode 不使用刚体（RigidBody2D）
            if(this.node.isValid){
                Tween.stopAllByTarget(this.node);
                tween(this.node)
                //.to(0.5, { y: posy-100 })
                .to(0.5, { opacity: 50 })
                .call(() => {
                    if (!this.node?.isValid) return;
                    gg.game?.CurentBattle?.tryApplyLightningLoveOnRemovalGround();
                    const map = gg.game?.CurentBattle?.TetraMap;
                    map?.invalidateStackTopCache?.();
                    this.node.destroy();
                    map?.refreshHighLineFromStack?.();
                })
                .start();
            }

        },0)
    }
}