"""把某个 game 的产物打包成「可直接拖进 Cocos 的整合包」。

被 server.py 的 /api/export 调用，也可命令行单独跑：
    python exporter.py jelly-candy-slot

产物在  out/<game>/cocos-pack/ ，结构：
    把素材接进Cocos-零基础教程.md
    assets/
      resources/characters/*.json|.atlas|.png
      resources/vfx/*.json + particle.png
      scripts/JellyDemo.ts  ParticleConfig.ts  TweenPresets.ts
"""

import json
import math
import os
import shutil

HERE = os.path.dirname(os.path.abspath(__file__))


def _symbol_fit_from_library(lib):
    slot_config = lib.get("slot_config") or {}
    symbol_cfg = (slot_config.get("layout") or {}).get("symbols") or {}
    fill = float(symbol_cfg.get("targetCellFill", 0.92) or 0.92)
    default_s = float(symbol_cfg.get("defaultScalePerCell", 0.00093) or 0.00093)
    default_oyf = float(symbol_cfg.get("defaultOriginYOffsetPerCell", 0.5) or 0.5)
    fits = {}
    for item in lib.get("characters", []):
        cid = item.get("id")
        w = float(item.get("w") or 0)
        h = float(item.get("h") or 0)
        if not cid or w <= 0 or h <= 0:
            continue
        max_dim = max(w, h)
        s = fill / max_dim
        # Spine 原点在素材底部中心，节点要下移半个实际显示高度才会视觉居中。
        oyf = (h * s) / 2.0
        fits[cid] = {"s": round(s, 6), "oyf": round(oyf, 4)}
    return fits, {"s": round(default_s, 6), "oyf": round(default_oyf, 4)}


def _math_report_md(slot_config):
    model = slot_config.get("mathModel") or {}
    sim = model.get("simulation") or {}
    rng = model.get("rng") or {}
    reels = model.get("reelStrips") or []
    lines = [
        "# Slot Math Report",
        "",
        "This is a certification-candidate math package, not a third-party lab certificate.",
        "",
        "## Identity",
        f"- Game: `{slot_config.get('game', {}).get('id', '')}`",
        f"- Model hash: `{model.get('modelHash', '')}`",
        f"- Status: `{model.get('status', '')}`",
        "",
        "## RTP Summary",
        f"- Target RTP: `{sim.get('targetRtp', '')}`",
        f"- Estimated RTP: `{sim.get('estimatedRtp', '')}`",
        f"- Payout scale: `{model.get('payoutScale', '')}`",
        f"- Hit frequency: `{sim.get('hitFrequency', '')}`",
        f"- Std dev per spin: `{sim.get('stdDevPerSpin', '')}`",
        f"- Base spins: `{sim.get('baseSpins', '')}`",
        f"- Total resolved spins: `{sim.get('totalResolvedSpins', '')}`",
        "",
        "## RNG",
        f"- Simulation RNG: `{rng.get('algorithm', '')}`",
        f"- Seed: `{rng.get('seed', '')}`",
        f"- Production requirement: `{rng.get('productionRequirement', '')}`",
        "",
        "## Reel Strips",
    ]
    for i, reel in enumerate(reels):
        lines.append(f"- Reel {i + 1} ({len(reel)} stops): `{','.join(reel)}`")
    lines.extend([
        "",
        "## Required Before Real Certification",
        "- Freeze source code and generated math config.",
        "- Replace prototype random calls with approved production RNG integration.",
        "- Run lab-required long simulation volume and edge-case tests.",
        "- Submit PAR sheet, reel strips, paytable, feature rules, RNG proof, and game binary.",
    ])
    return "\n".join(lines) + "\n"


# ---------------------------------------------------------------- 粒子贴图
def _write_particle_png(path):
    """生成一张柔光圆点透明 PNG（粒子配置引用的 particle.png）。"""
    try:
        from PIL import Image
    except ImportError:
        return False
    S = 64
    im = Image.new("RGBA", (S, S), (0, 0, 0, 0))
    px = im.load()
    c = (S - 1) / 2.0
    r = c
    for y in range(S):
        for x in range(S):
            d = math.hypot(x - c, y - c) / r
            a = max(0.0, 1.0 - d)
            a = a * a
            px[x, y] = (255, 255, 255, int(255 * a))
    im.save(path)
    return True


# ---------------------------------------------------------------- 静态脚本：ParticleConfig.ts
PARTICLE_CONFIG_TS = r"""// 自动生成 by anim_studio —— 把 *.json 粒子配置应用到 Cocos ParticleSystem2D
// 这个文件你不用改。
import { ParticleSystem2D, Color, Vec2, SpriteFrame, gfx } from 'cc';

function toBlend(gl: number): number {
  switch (gl) {
    case 0:    return gfx.BlendFactor.ZERO;
    case 1:    return gfx.BlendFactor.ONE;
    case 768:  return gfx.BlendFactor.SRC_COLOR;
    case 769:  return gfx.BlendFactor.ONE_MINUS_SRC_COLOR;
    case 770:  return gfx.BlendFactor.SRC_ALPHA;
    case 771:  return gfx.BlendFactor.ONE_MINUS_SRC_ALPHA;
    case 772:  return gfx.BlendFactor.DST_ALPHA;
    case 773:  return gfx.BlendFactor.ONE_MINUS_DST_ALPHA;
    default:   return gfx.BlendFactor.ONE;
  }
}

function col(arr: number[] | undefined, def: number[]): Color {
  const a = arr && arr.length >= 3 ? arr : def;
  return new Color(a[0] | 0, a[1] | 0, a[2] | 0, a.length > 3 ? (a[3] | 0) : 255);
}

export function applyParticleConfig(ps: ParticleSystem2D, c: any, spriteFrame: SpriteFrame) {
  ps.spriteFrame = spriteFrame;
  ps.emitterMode = ParticleSystem2D.EmitterMode.GRAVITY;

  ps.duration       = c.duration       ?? -1;
  ps.totalParticles = c.totalParticles ?? 200;
  ps.emissionRate   = c.emissionRate   ?? 60;

  ps.life    = c.life    ?? 2;
  ps.lifeVar = c.lifeVar ?? 0;

  ps.angle    = c.angle    ?? 90;
  ps.angleVar = c.angleVar ?? 0;

  ps.speed    = c.speed    ?? 100;
  ps.speedVar = c.speedVar ?? 0;

  ps.gravity = new Vec2(c.gravityX ?? 0, c.gravityY ?? 0);
  ps.posVar  = new Vec2(c.posVarX ?? 0, c.posVarY ?? 0);

  ps.startSize    = c.startSize    ?? 30;
  ps.startSizeVar = c.startSizeVar ?? 0;
  ps.endSize      = c.endSize      ?? -1;

  ps.startSpin    = c.startSpin    ?? 0;
  ps.startSpinVar = c.startSpinVar ?? 0;
  ps.endSpin      = c.endSpin      ?? 0;
  ps.endSpinVar   = c.endSpinVar   ?? 0;

  ps.startColor    = col(c.startColor,    [255, 255, 255, 255]);
  ps.startColorVar = col(c.startColorVar, [0, 0, 0, 0]);
  ps.endColor      = col(c.endColor,      [255, 255, 255, 0]);
  ps.endColorVar   = col(c.endColorVar,   [0, 0, 0, 0]);

  if (c.blendFunc) {
    ps.srcBlendFactor = toBlend(c.blendFunc.src);
    ps.dstBlendFactor = toBlend(c.blendFunc.dst);
  }

  ps.resetSystem();
}
"""


# ---------------------------------------------------------------- 模板脚本：JellyDemo.ts
# __CHARACTERS__ / __VFX__ 会被替换成该 game 真实的资源 id 列表
JELLY_DEMO_TS = r"""// =============================================================
//  JellyDemo.ts —— 一键演示：加载全部角色 + 按钮触发 WIN / 特效
//  by anim_studio（按本 game 的资源自动生成）
//  用法：把本脚本拖到场景里一个空节点上，点播放。
// =============================================================
import {
  _decorator, Component, Node, sp, resources, JsonAsset, SpriteFrame,
  ParticleSystem2D, UITransform, Label, Graphics, Button, Color,
  view, EventTouch,
} from 'cc';
import { applyParticleConfig } from './ParticleConfig';
// 需要 UI 动效时：import { TweenPresets } from './TweenPresets';
//   TweenPresets.play('scale_bounce', someNode).start();

const { ccclass } = _decorator;

const CHARACTERS = __CHARACTERS__;
const VFX = __VFX__;

const CHAR_SCALE = 0.11;

@ccclass('JellyDemo')
export class JellyDemo extends Component {
  private skeletons: sp.Skeleton[] = [];
  private particleTex: SpriteFrame | null = null;

  onLoad() {
    const ut = this.node.getComponent(UITransform) || this.node.addComponent(UITransform);
    const size = view.getVisibleSize();
    ut.setContentSize(size.width, size.height);
    this.loadParticleTexture(() => { this.buildCharacterGrid(); this.buildButtons(); });
  }

  private loadParticleTexture(done: () => void) {
    resources.load('vfx/particle/spriteFrame', SpriteFrame, (err, sf) => {
      if (!err) this.particleTex = sf;
      else console.warn('[JellyDemo] 粒子贴图未加载到:', err);
      done();
    });
  }

  private buildCharacterGrid() {
    const cols = 5, cellW = 175, cellH = 200;
    const rows = Math.ceil(CHARACTERS.length / cols);
    const startX = -((cols - 1) * cellW) / 2;
    const startY = ((rows - 1) * cellH) / 2 + 40;
    CHARACTERS.forEach((id, i) => {
      resources.load(`characters/${id}`, sp.SkeletonData, (err, data) => {
        if (err) { console.error('[JellyDemo] 角色加载失败:', id, err); return; }
        const node = new Node(id); node.parent = this.node;
        const sk = node.addComponent(sp.Skeleton);
        sk.skeletonData = data;
        sk.premultipliedAlpha = false;
        sk.setAnimation(0, 'idle', true);
        node.setScale(CHAR_SCALE, CHAR_SCALE, 1);
        const c = i % cols, r = Math.floor(i / cols);
        node.setPosition(startX + c * cellW, startY - r * cellH, 0);
        this.skeletons.push(sk);
        this.makeLabel(this.node, id, startX + c * cellW, startY - r * cellH - 70, 16);
      });
    });
  }

  private buildButtons() {
    const y = -view.getVisibleSize().height / 2 + 60;
    this.makeButton('▶ 全部 WIN', -300, y, new Color(255, 120, 60, 255), () => {
      this.skeletons.forEach((sk) => { sk.setAnimation(0, 'win', false); sk.addAnimation(0, 'idle', true, 0); });
    });
    VFX.forEach((id, i) => {
      const x = -90 + i * 165;
      this.makeButton(id, x, y, new Color(80, 150, 255, 255), () => this.playVfx(id));
    });
  }

  private playVfx(id: string) {
    resources.load(`vfx/${id}`, JsonAsset, (err, asset) => {
      if (err) { console.error('[JellyDemo] 特效配置加载失败:', id, err); return; }
      const node = new Node('vfx_' + id); node.parent = this.node; node.setPosition(0, 80, 0);
      const ps = node.addComponent(ParticleSystem2D);
      applyParticleConfig(ps, asset.json, this.particleTex as SpriteFrame);
      this.scheduleOnce(() => { ps.stopSystem(); }, 1.5);
      this.scheduleOnce(() => { node.destroy(); }, 5);
    });
  }

  private makeButton(text: string, x: number, y: number, color: Color, onClick: () => void) {
    const node = new Node('btn_' + text); node.parent = this.node; node.setPosition(x, y, 0);
    const w = 150, h = 52;
    const ut = node.addComponent(UITransform); ut.setContentSize(w, h);
    const g = node.addComponent(Graphics); g.fillColor = color;
    this.roundRect(g, -w / 2, -h / 2, w, h, 12); g.fill();
    this.makeLabel(node, text, 0, 0, 22, new Color(255, 255, 255, 255));
    const btn = node.addComponent(Button);
    btn.transition = Button.Transition.SCALE; btn.zoomScale = 0.92;
    node.on(Node.EventType.TOUCH_END, (_e: EventTouch) => onClick());
  }

  private makeLabel(parent: Node, text: string, x: number, y: number, size: number, color?: Color) {
    const n = new Node('label'); n.parent = parent; n.setPosition(x, y, 0);
    const lab = n.addComponent(Label);
    lab.string = text; lab.fontSize = size; lab.lineHeight = size + 2;
    lab.color = color || new Color(60, 60, 60, 255);
    const ps = parent.scale;
    if (ps.x !== 0 && ps.x !== 1) n.setScale(1 / ps.x, 1 / ps.y, 1);
  }

  private roundRect(g: Graphics, x: number, y: number, w: number, h: number, r: number) {
    g.moveTo(x + r, y); g.lineTo(x + w - r, y);
    g.arc(x + w - r, y + r, r, -Math.PI / 2, 0, false);
    g.lineTo(x + w, y + h - r); g.arc(x + w - r, y + h - r, r, 0, Math.PI / 2, false);
    g.lineTo(x + r, y + h); g.arc(x + r, y + h - r, r, Math.PI / 2, Math.PI, false);
    g.lineTo(x, y + r); g.arc(x + r, y + r, r, Math.PI, Math.PI * 1.5, false); g.close();
  }
}
"""


# ---------------------------------------------------------------- 模板脚本：SlotGame.ts
# __SYMBOLS__ 会被替换成本 game 的符号列表
SLOT_GAME_TS = r"""// =============================================================
//  SlotGame.ts —— 果冻老虎机（可玩原型）by anim_studio（按本 game 资源生成）
//  用法：把本脚本挂到 Canvas 下的一个空节点上，点播放。
// =============================================================
import {
  _decorator, Component, Node, sp, resources, JsonAsset, SpriteFrame,
  ParticleSystem2D, UITransform, Label, Graphics, Button, Color, Vec3,
  view, EventTouch, tween, profiler,
} from 'cc';
import { applyParticleConfig } from './ParticleConfig';

const { ccclass } = _decorator;

const SYMBOLS = __SYMBOLS__;

const COLS = 5, ROWS = 3;
const CELL = 118;
const SYM_SCALE = 0.085;
const BET = 50;
const START_BALANCE = 1000;

@ccclass('SlotGame')
export class SlotGame extends Component {
  private dataMap: Record<string, sp.SkeletonData> = {};
  private cells: sp.Skeleton[][] = [];
  private cur: string[][] = [];
  private finalGrid: string[][] = [];

  private spinning = false;
  private elapsed = 0;
  private colStopAt: number[] = [];
  private colStopped: boolean[] = [];
  private swapTimer: number[] = [];

  private balance = START_BALANCE;
  private displayBalance = START_BALANCE;
  private balanceLabel!: Label;
  private winLabel!: Label;
  private spinBtn!: Node;
  private particleTex: SpriteFrame | null = null;

  private gridY = 30;
  private startX = -((COLS - 1) * CELL) / 2;

  onLoad() {
    profiler && profiler.hideStats();
    this.node.setPosition(0, 0, 0);
    const ut = this.node.getComponent(UITransform) || this.node.addComponent(UITransform);
    ut.setAnchorPoint(0.5, 0.5);
    const s = view.getVisibleSize();
    ut.setContentSize(s.width, s.height);
    this.buildBackground(s.width, s.height);
    this.buildPanel();
    this.buildHud(s.width, s.height);
    this.buildSpinButton(s.height);
    let left = SYMBOLS.length;
    resources.load('vfx/particle/spriteFrame', SpriteFrame, (_e, sf) => { if (sf) this.particleTex = sf; });
    SYMBOLS.forEach((id) => {
      resources.load(`characters/${id}`, sp.SkeletonData, (err, data) => {
        if (!err) this.dataMap[id] = data;
        if (--left === 0) this.buildGrid();
      });
    });
  }

  private buildBackground(W: number, H: number) {
    const n = new Node('bg'); n.parent = this.node; n.setSiblingIndex(0);
    const g = n.addComponent(Graphics);
    g.fillColor = new Color(40, 24, 64, 255);
    g.rect(-W / 2, -H / 2, W, H); g.fill();
    g.fillColor = new Color(58, 34, 92, 255);
    g.rect(-W / 2, H / 2 - 90, W, 90); g.fill();
    const t = new Node('title'); t.parent = this.node; t.setPosition(0, H / 2 - 45, 0);
    const lab = t.addComponent(Label);
    lab.string = '🍬 JELLY SLOT 🍬'; lab.fontSize = 34; lab.lineHeight = 38;
    lab.color = new Color(255, 235, 160, 255);
  }

  private buildPanel() {
    const w = COLS * CELL + 30, h = ROWS * CELL + 30;
    const n = new Node('panel'); n.parent = this.node; n.setPosition(0, this.gridY, 0);
    const g = n.addComponent(Graphics);
    g.fillColor = new Color(24, 14, 38, 255);
    this.roundRect(g, -w / 2, -h / 2, w, h, 18); g.fill();
    const tile = CELL - 12;
    for (let c = 0; c < COLS; c++) {
      for (let r = 0; r < ROWS; r++) {
        const cx = this.startX + c * CELL;
        const cy = (1 - r) * CELL;
        g.fillColor = new Color(247, 243, 252, 255);
        this.roundRect(g, cx - tile / 2, cy - tile / 2, tile, tile, 14); g.fill();
        g.lineWidth = 3; g.strokeColor = new Color(255, 205, 110, 200);
        this.roundRect(g, cx - tile / 2, cy - tile / 2, tile, tile, 14); g.stroke();
      }
    }
    g.lineWidth = 6; g.strokeColor = new Color(255, 200, 90, 255);
    this.roundRect(g, -w / 2, -h / 2, w, h, 18); g.stroke();
  }

  private buildHud(W: number, H: number) {
    const b = new Node('balance'); b.parent = this.node; b.setPosition(-W / 2 + 130, H / 2 - 130, 0);
    this.balanceLabel = b.addComponent(Label);
    this.balanceLabel.fontSize = 26; this.balanceLabel.color = new Color(180, 240, 255, 255);
    const w = new Node('win'); w.parent = this.node; w.setPosition(0, H / 2 - 130, 0);
    this.winLabel = w.addComponent(Label);
    this.winLabel.fontSize = 30; this.winLabel.color = new Color(255, 220, 120, 255);
    this.winLabel.string = '';
    this.refreshBalance();
  }

  private refreshBalance() { this.balanceLabel.string = `💰 ${Math.floor(this.displayBalance)}`; }

  private buildSpinButton(H: number) {
    const node = new Node('spin'); node.parent = this.node;
    node.setPosition(0, -H / 2 + 70, 0);
    const w = 210, h = 64;
    node.addComponent(UITransform).setContentSize(w, h);
    const g = node.addComponent(Graphics);
    g.fillColor = new Color(255, 110, 70, 255);
    this.roundRect(g, -w / 2, -h / 2, w, h, 16); g.fill();
    const ln = new Node('t'); ln.parent = node;
    const lab = ln.addComponent(Label);
    lab.string = '▶ SPIN'; lab.fontSize = 30; lab.color = new Color(255, 255, 255, 255);
    const btn = node.addComponent(Button);
    btn.transition = Button.Transition.SCALE; btn.zoomScale = 0.93;
    node.on(Node.EventType.TOUCH_END, (_e: EventTouch) => this.spin());
    this.spinBtn = node;
  }

  private buildGrid() {
    for (let c = 0; c < COLS; c++) {
      this.cells[c] = []; this.cur[c] = []; this.finalGrid[c] = [];
      for (let r = 0; r < ROWS; r++) {
        const id = this.rand();
        const node = new Node(`cell_${c}_${r}`); node.parent = this.node;
        node.setPosition(this.startX + c * CELL, this.cellY(r), 0);
        node.setScale(SYM_SCALE, SYM_SCALE, 1);
        const sk = node.addComponent(sp.Skeleton);
        sk.skeletonData = this.dataMap[id];
        sk.premultipliedAlpha = false;
        sk.setAnimation(0, 'idle', true);
        this.cells[c][r] = sk; this.cur[c][r] = id;
      }
    }
  }

  private cellY(r: number) { return this.gridY + (1 - r) * CELL; }

  private spin() {
    if (this.spinning) return;
    if (this.balance < BET) { this.flashWin('余额不足！'); return; }
    this.balance -= BET; this.displayBalance = this.balance; this.refreshBalance();
    this.winLabel.string = '';
    this.decideResult();
    this.spinning = true; this.elapsed = 0;
    for (let c = 0; c < COLS; c++) { this.colStopped[c] = false; this.colStopAt[c] = 0.6 + c * 0.28; this.swapTimer[c] = 0; }
    this.setSpinEnabled(false);
  }

  private decideResult() {
    for (let c = 0; c < COLS; c++) for (let r = 0; r < ROWS; r++) this.finalGrid[c][r] = this.rand();
    if (Math.random() < 0.4) {
      const r = Math.floor(Math.random() * ROWS);
      const sym = this.rand();
      const len = Math.random() < 0.4 ? 4 : 3;
      for (let c = 0; c < len && c < COLS; c++) this.finalGrid[c][r] = sym;
    }
  }

  update(dt: number) {
    if (!this.spinning) {
      if (Math.abs(this.displayBalance - this.balance) > 0.5) {
        this.displayBalance += (this.balance - this.displayBalance) * Math.min(1, dt * 6);
        this.refreshBalance();
      }
      return;
    }
    this.elapsed += dt;
    let allStopped = true;
    for (let c = 0; c < COLS; c++) {
      if (this.colStopped[c]) continue;
      if (this.elapsed >= this.colStopAt[c]) {
        for (let r = 0; r < ROWS; r++) this.setSymbol(c, r, this.finalGrid[c][r]);
        this.colStopped[c] = true; this.popColumn(c);
      } else {
        this.swapTimer[c] -= dt;
        if (this.swapTimer[c] <= 0) { this.swapTimer[c] = 0.06; for (let r = 0; r < ROWS; r++) this.setSymbol(c, r, this.rand()); }
        allStopped = false;
      }
    }
    if (allStopped) { this.spinning = false; this.evaluate(); this.setSpinEnabled(true); }
  }

  private setSymbol(c: number, r: number, id: string) {
    const sk = this.cells[c][r];
    if (this.cur[c][r] !== id) { sk.skeletonData = this.dataMap[id]; sk.premultipliedAlpha = false; this.cur[c][r] = id; }
    sk.setAnimation(0, 'idle', true);
  }

  private popColumn(c: number) {
    for (let r = 0; r < ROWS; r++) {
      const n = this.cells[c][r].node;
      n.setScale(SYM_SCALE * 1.25, SYM_SCALE * 1.25, 1);
      tween(n).to(0.12, { scale: new Vec3(SYM_SCALE, SYM_SCALE, 1) }, { easing: 'backOut' }).start();
    }
  }

  private evaluate() {
    let totalWin = 0; const winners: sp.Skeleton[] = [];
    for (let r = 0; r < ROWS; r++) {
      const first = this.finalGrid[0][r]; let count = 1;
      while (count < COLS && this.finalGrid[count][r] === first) count++;
      if (count >= 3) {
        totalWin += BET * (count - 2) * 2;
        for (let c = 0; c < count; c++) winners.push(this.cells[c][r]);
      }
    }
    if (totalWin > 0) {
      this.balance += totalWin; this.flashWin(`WIN +${totalWin}`);
      winners.forEach((sk) => { sk.setAnimation(0, 'win', false); sk.addAnimation(0, 'idle', true, 0); });
      this.playCoinRain();
    } else { this.winLabel.string = ''; }
  }

  private flashWin(text: string) {
    this.winLabel.string = text;
    const n = this.winLabel.node; n.setScale(0.6, 0.6, 1);
    tween(n).to(0.35, { scale: new Vec3(1, 1, 1) }, { easing: 'elasticOut' }).start();
  }

  private playCoinRain() {
    resources.load('vfx/coin_rain', JsonAsset, (err, asset) => {
      if (err) return;
      const n = new Node('coins'); n.parent = this.node; n.setPosition(0, 120, 0);
      const ps = n.addComponent(ParticleSystem2D);
      applyParticleConfig(ps, asset.json, this.particleTex as SpriteFrame);
      this.scheduleOnce(() => ps.stopSystem(), 1.6);
      this.scheduleOnce(() => n.destroy(), 5);
    });
  }

  private rand() { return SYMBOLS[Math.floor(Math.random() * SYMBOLS.length)]; }

  private setSpinEnabled(on: boolean) {
    const btn = this.spinBtn.getComponent(Button); if (btn) btn.interactable = on;
    this.spinBtn.getChildByName('t')!.getComponent(Label)!.string = on ? '▶ SPIN' : '转动中…';
  }

  private roundRect(g: Graphics, x: number, y: number, w: number, h: number, r: number) {
    g.moveTo(x + r, y); g.lineTo(x + w - r, y);
    g.arc(x + w - r, y + r, r, -Math.PI / 2, 0, false);
    g.lineTo(x + w, y + h - r); g.arc(x + w - r, y + h - r, r, 0, Math.PI / 2, false);
    g.lineTo(x + r, y + h); g.arc(x + r, y + h - r, r, Math.PI / 2, Math.PI, false);
    g.lineTo(x, y + r); g.arc(x + r, y + r, r, Math.PI, Math.PI * 1.5, false); g.close();
  }
}
"""


# ---------------------------------------------------------------- 教程
def _tutorial_md(game):
    return f"""# 把「{game}」素材接进 Cocos —— 零基础教程

这个文件夹是你点「导出 Cocos 整合包」自动生成的，可以直接进 Cocos Creator。
全程不用写代码：装软件 → 新建项目 → 拖文件 → 挂一个脚本 → 点播放。

## 包里有什么
```
cocos-pack/
├─ 本教程.md
└─ assets/                         ← 整个拖进 Cocos
   ├─ resources/characters/  角色三件套（.json/.atlas/.png）
   ├─ resources/vfx/         粒子配置 .json + particle.png
   └─ scripts/  JellyDemo.ts / ParticleConfig.ts / TweenPresets.ts
```
> `resources` 文件夹名不能改，Cocos 靠它动态加载资源。

## 步骤
1. 装 **Cocos Creator 3.8.x**：https://www.cocos.com/creator-download
2. 新建一个 **空项目（Empty / 2D）** 并打开。
3. 把本包 `assets/` 里的 **resources、scripts 两个文件夹**一起拖进 Cocos 资源管理器的 `assets` 上，等导入进度条走完。
4. 在 `assets` 右键 → 新建 Scene，双击打开；确保有个 **Canvas** 节点，在它下面新建一个**空节点**。
5. 把 `scripts/JellyDemo.ts` 拖到那个空节点的属性检查器上（或「添加组件 → JellyDemo」）。
6. 点正上方 **▶ 播放**：角色排队果冻抖动，底部按钮可触发「全部 WIN」和各粒子特效。

## 常见问题
- 角色没出来：多半素材没导完或 resources 被改名；确认能在资源管理器把角色展开成 SkeletonData。
- 角色发黑/白边：脚本已设 premultipliedAlpha=false；仍有则在贴图设置关掉 PremultiplyAlpha 重新导入。
- 太大/太小：改 `JellyDemo.ts` 顶部 `CHAR_SCALE`。
- 特效看不见：确认 `resources/vfx/particle.png` 在。
"""


# ---------------------------------------------------------------- 主函数
def export(game, out_root, log=print):
    base = os.path.join(out_root, game)
    if not os.path.isfile(os.path.join(base, "library.json")):
        raise FileNotFoundError(f"找不到 game「{game}」的 library.json")

    lib = json.load(open(os.path.join(base, "library.json"), encoding="utf-8"))
    pack = os.path.join(base, "cocos-pack")
    if os.path.exists(pack):
        shutil.rmtree(pack)
    res_ch = os.path.join(pack, "assets", "resources", "characters")
    res_vfx = os.path.join(pack, "assets", "resources", "vfx")
    scripts = os.path.join(pack, "assets", "scripts")
    for d in (res_ch, res_vfx, scripts):
        os.makedirs(d, exist_ok=True)

    # 角色三件套
    char_ids = []
    src_ch = os.path.join(base, "characters")
    if os.path.isdir(src_ch):
        for f in sorted(os.listdir(src_ch)):
            shutil.copy2(os.path.join(src_ch, f), os.path.join(res_ch, f))
            if f.endswith(".json"):
                char_ids.append(f[:-5])
    log(f"📦 角色 {len(char_ids)} 个")

    # 粒子配置：去掉 .particle 后缀，路径更干净
    vfx_ids = []
    src_vfx = os.path.join(base, "vfx")
    if os.path.isdir(src_vfx):
        for f in sorted(os.listdir(src_vfx)):
            if f.endswith(".particle.json"):
                vid = f[: -len(".particle.json")]
                shutil.copy2(os.path.join(src_vfx, f), os.path.join(res_vfx, vid + ".json"))
                vfx_ids.append(vid)
            elif f.endswith(".json"):
                shutil.copy2(os.path.join(src_vfx, f), os.path.join(res_vfx, f))
                vfx_ids.append(f[:-5])
    log(f"📦 特效 {len(vfx_ids)} 个")

    # UI 美术（背景 / 外框 / 按钮 / Logo 等整图）
    src_art = os.path.join(base, "ui_art")
    art_ids = []
    if os.path.isdir(src_art):
        res_art = os.path.join(pack, "assets", "resources", "ui_art")
        os.makedirs(res_art, exist_ok=True)
        for f in sorted(os.listdir(src_art)):
            if f.endswith(".png"):
                shutil.copy2(os.path.join(src_art, f), os.path.join(res_art, f))
                art_ids.append(f[:-4])
        log(f"📦 UI 美术 {len(art_ids)} 张" if art_ids else "📦 无 UI 美术")

    # 粒子贴图
    if _write_particle_png(os.path.join(res_vfx, "particle.png")):
        log("📦 粒子贴图 particle.png 已生成")
    else:
        log("⚠️  未装 Pillow，未能生成 particle.png（特效会发射但看不见）")

    # 脚本
    demo = (JELLY_DEMO_TS
            .replace("__CHARACTERS__", json.dumps(char_ids, ensure_ascii=False))
            .replace("__VFX__", json.dumps(vfx_ids, ensure_ascii=False)))
    open(os.path.join(scripts, "JellyDemo.ts"), "w", encoding="utf-8").write(demo)
    open(os.path.join(scripts, "ParticleConfig.ts"), "w", encoding="utf-8").write(PARTICLE_CONFIG_TS)
    slot_tmpl = os.path.join(HERE, "templates", "SlotGame.ts")
    slot_src = open(slot_tmpl, encoding="utf-8").read() if os.path.isfile(slot_tmpl) else SLOT_GAME_TS
    slot_config = lib.get("slot_config") or {}
    symbol_fit, symbol_fit_default = _symbol_fit_from_library(lib)
    game_config_ts = (
        "export const SLOT_CONFIG = "
        + json.dumps(slot_config, ensure_ascii=False, indent=2)
        + " as const;\n"
        + "export const SYMBOLS = "
        + json.dumps(char_ids, ensure_ascii=False, indent=2)
        + " as const;\n"
        + "export const SYMBOL_FIT = "
        + json.dumps(symbol_fit, ensure_ascii=False, indent=2)
        + " as const;\n"
    )
    open(os.path.join(scripts, "GameConfig.ts"), "w", encoding="utf-8").write(game_config_ts)
    open(os.path.join(pack, "SlotMathReport.md"), "w", encoding="utf-8").write(_math_report_md(slot_config))
    slot = (slot_src
            .replace("__SYMBOLS__", json.dumps(char_ids, ensure_ascii=False))
            .replace("__GAME_CONFIG__", json.dumps(slot_config, ensure_ascii=False))
            .replace("__SYMBOL_FIT__", json.dumps(symbol_fit, ensure_ascii=False))
            .replace("__SYMBOL_FIT_DEFAULT__", json.dumps(symbol_fit_default, ensure_ascii=False)))
    open(os.path.join(scripts, "SlotGame.ts"), "w", encoding="utf-8").write(slot)
    src_tween = os.path.join(base, "ui", "TweenPresets.ts")
    if os.path.isfile(src_tween):
        shutil.copy2(src_tween, os.path.join(scripts, "TweenPresets.ts"))
    log("📦 脚本 JellyDemo.ts / SlotGame.ts / GameConfig.ts / ParticleConfig.ts / TweenPresets.ts 已写入")

    # 教程
    open(os.path.join(pack, "把素材接进Cocos-零基础教程.md"), "w",
         encoding="utf-8").write(_tutorial_md(game))
    log(f"✅ 整合包完成：out/{game}/cocos-pack/")
    return pack


if __name__ == "__main__":
    import sys
    g = sys.argv[1] if len(sys.argv) > 1 else "game"
    export(g, os.path.join(HERE, "out"))