"use strict";
/* ================= 界面流转 ================= */
const OVLS=["o-auth","o-home","o-title","o-setup","o-hangar","o-cards","o-pause","o-over","o-codex","o-demo","o-rush","o-slot","o-unsaved"];
function show(id){for(const o of OVLS)$(o).classList.toggle("hide",o!==id);}
const SETUP={mode:"endless",ship:"falcon",diff:0};   // 出击默认无尽模式
function bestLine(){
  const b=SAVE.best;
  $("best-line").textContent=`无尽纪录 ${Math.max(b.e0,b.e1)} · 闯关进度 ${b.stage}/6`;
}
$("b-go").onclick=()=>{AU.init();show("o-setup");refreshRunSave();};
$("b-back1").onclick=()=>show("o-title");
$("b-back2").onclick=()=>show("o-title");
$("b-hangar").onclick=()=>{AU.init();buildShop();show("o-hangar");};
$("b-codex").onclick=()=>{AU.init();buildCodex();show("o-codex");};
$("b-rush").onclick=()=>{AU.init();buildRush();show("o-rush");};
$("b-back6").onclick=()=>{UI="title";show("o-title");};
$("b-back4").onclick=()=>{UI="title";bestLine();show("o-title");};
$("b-back5").onclick=exitDemoSim;
/* 图鉴测试模式（隐藏入口）：连点图鉴标题“军”字10次开关。
   纯内存开关——不动 SAVE.codex（persist/结算上报都读它，动了会污染后端），刷新页面即失效 */
let codexTestAll=false,cxClicks=0,cxLastClick=0;
$("cx-secret").onclick=()=>{
  const now=Date.now();
  if(now-cxLastClick>2000)cxClicks=0;   // 间隔超2秒重新计数
  cxLastClick=now;
  if(++cxClicks<10)return;
  cxClicks=0;codexTestAll=!codexTestAll;
  SFX.pick();buildCodex();
};
/* 开始出击：新开无尽对局（不分难度）前，若云端有未完成对局，先弹结算确认 */
$("b-start").onclick=async()=>{
  if(SETUP.mode==="endless"&&typeof NET!=="undefined"&&NET.user){
    if(NET.runSave===undefined)await NET.fetchRunSave();
    if(NET.runSave){showUnsaved(NET.runSave);return;}
  }
  startGame();
};

/* ================= 无尽模式：断点续玩（波次检查点） =================
   每波开始拍快照上传（startWave 调用）；中途退出=从当前波开头重打，
   该波内的得分/击杀不保留，build与层数完整保留 */
function takeRunSnapshot(){
  return {v:1,mode:"endless",diff:G.diff,ship:G.ship,
    wave:G.wave,score:Math.round(G.score),coins:Math.round(G.coins),kills:G.kills,
    level:G.level,xp:Math.round(G.xp),xpNeed:G.xpNeed,luck:G.luck,
    weapons:Object.assign({},G.weapons),loadout:G.loadout.slice(),
    subs:Object.assign({},G.subs),subLoadout:G.subLoadout.slice(),
    drones:Object.assign({},G.drones),droneLoadout:G.droneLoadout.slice(),
    u:Object.assign({},G.u),
    lives:G.lives,maxHp:G.maxHp,hp:Math.round(G.hp),
    shield:G.shield,od:Math.round(G.od),
    bossN:G.bossN,bossKills:G.bossKills||0,time:G.time};
}
/* startWave 开头调用：仅无尽模式实战（演示/主页模拟/未登录跳过） */
function maybeSaveRun(){
  if(!G||G.mode!=="endless"||G.demoSim)return;
  if(typeof NET==="undefined"||!NET.user)return;
  NET.saveRunSnapshot(takeRunSnapshot());
}
/* 出击页：拉取云端存档并渲染“继续对局”卡片 */
async function refreshRunSave(){
  if(typeof NET==="undefined"||!NET.user){buildResumeSlot();return;}
  await NET.fetchRunSave();
  buildResumeSlot();
}
function buildResumeSlot(){
  const box=$("resume-slot");if(!box)return;box.innerHTML="";
  const s=typeof NET!=="undefined"?NET.runSave:null;
  if(!s||!NET.user)return;
  const d=document.createElement("div");d.className="panel";
  d.style.cssText="border-color:var(--gold);margin-bottom:8px;padding:8px 10px";
  d.innerHTML=`<div class="h3" style="color:var(--gold)">⏸ 未完成的无尽对局</div>
    <div class="small" style="margin:2px 0 6px">WAVE ${s.wave} · ${s.diff?"困难":"普通"} · 得分 ${s.score} · ${SHIPS[s.ship]?SHIPS[s.ship].name:"猎鹰"}</div>`;
  const b=document.createElement("button");
  b.className="btn primary";b.style.minWidth="min(56vw,200px)";
  b.textContent="▶ 继续对局";
  b.onclick=()=>{SFX.pick();resumeSavedRun(s);};
  d.appendChild(b);box.appendChild(d);
}
/* 从波次检查点重建对局：该波从头重打 */
function resumeSavedRun(s){
  AU.init();if(AU.ctx&&AU.ctx.state==="suspended")AU.ctx.resume();
  newRun("endless",s.ship,s.diff);
  G.score=s.score;G.coins=s.coins;G.kills=s.kills;
  G.level=s.level;G.xp=s.xp;G.xpNeed=s.xpNeed;G.luck=s.luck;
  G.weapons=Object.assign({},s.weapons);G.loadout=s.loadout.slice();
  G.subs=Object.assign({},s.subs);G.subLoadout=s.subLoadout.slice();
  G.drones=Object.assign({},s.drones);G.droneLoadout=s.droneLoadout.slice();
  G.u=Object.assign({fire:0,crit:0,shield:0,nano:0,mag:0,bounty:0,odcore:0,ghost:0},s.u);
  G.lives=s.lives;G.maxHp=s.maxHp;G.hp=Math.min(s.hp,s.maxHp);
  G.shield=Math.min(s.shield,shieldCap());G.od=s.od;
  G.bossN=s.bossN;G.bossKills=s.bossKills;G.time=s.time;
  G.wave=s.wave-1;   // startWave 会 ++ 回这一波：整波重打，Boss波则重抽Boss（bossN未预增，不偏移）
  UI="play";show("");acc=0;
  MUS.start(false);
  banner("继续对局 — WAVE "+s.wave,"#41e6ff",130);
  startWave();
}
/* 结算未完成对局：星币入账+本地纪录+排行榜上报，返回删除云档的 Promise */
function settleSavedRun(s){
  SAVE.coins+=s.coins;
  SAVE.best["e"+s.diff]=Math.max(SAVE.best["e"+s.diff]||0,s.score);
  persist();
  if(typeof NET!=="undefined"&&NET.user){
    NET.submitRun({mode:"endless",diff:s.diff,score:s.score,wave:s.wave,stage:1,
      timeSec:Math.round((s.time||0)/60),bossKills:s.bossKills||0,win:false,
      codex:Object.keys(SAVE.codex)});
    return NET.deleteRunSave();
  }
  return Promise.resolve();
}
/* “将直接结算未完成的对局”确认弹窗 */
function showUnsaved(s){
  $("unsaved-info").innerHTML=
    `<span>抵达波次</span><b>WAVE ${s.wave}</b>
     <span>难度</span><b>${s.diff?"困难":"普通"}</b>
     <span>当前得分</span><b>${s.score}</b>
     <span>持有星币</span><b>✦ ${s.coins}</b>`;
  show("o-unsaved");
}
$("b-settle-go").onclick=async()=>{   // 结算旧档（等删除完成再开新局，防队列外竞态已由 NET 队列兜底）
  const s=typeof NET!=="undefined"?NET.runSave:null;
  if(s)await settleSavedRun(s);
  startGame();
};
$("b-unsaved-resume").onclick=()=>{
  const s=typeof NET!=="undefined"?NET.runSave:null;
  if(s)resumeSavedRun(s);else show("o-setup");
};
$("b-unsaved-cancel").onclick=()=>show("o-setup");
if("ontouchstart" in window){const pb=$("tb-pause");pb.style.display="block";pb.onclick=()=>togglePause();}
$("b-resume").onclick=()=>togglePause();
$("b-restart").onclick=()=>{show("");restartSameRun();};
/* 放弃任务：无尽模式且已有云端断点存档时【不结算】——星币/分数留在波次快照里，回基地可续玩；其余情况照旧结算 */
$("b-quit").onclick=()=>{
  const keep=G&&G.mode==="endless"&&!G.demoSim&&typeof NET!=="undefined"&&NET.user&&NET.runSave;
  if(!keep)bank();
  G=null;MUS.stop();UI="title";bestLine();show("o-title");
};
/* 再来一局：按刚结束那一局自己的 mode/ship/diff 重开（修复 SETUP 漂移导致进错模式，如 rush/闯关死后进了无尽） */
function restartSameRun(){
  if(!G){startGame();return;}
  if(G.mode==="rush"){startRush(G.rushIdx);return;}
  SETUP.mode=G.mode;SETUP.ship=G.ship;SETUP.diff=G.diff;
  startGame();
}
$("b-again").onclick=()=>restartSameRun();
$("b-home").onclick=()=>{G=null;UI="title";bestLine();show("o-title");};
$("mode-pick").addEventListener("click",e=>{
  const c=e.target.closest(".pcard");if(!c)return;
  SETUP.mode=c.dataset.m;
  for(const el of $("mode-pick").children)el.classList.toggle("sel",el===c);
});
$("diff-pick").addEventListener("click",e=>{
  const b=e.target.closest("button");if(!b)return;
  SETUP.diff=+b.dataset.d;
  for(const el of $("diff-pick").children)el.classList.toggle("primary",el===b);
});
/* 机体选择/购买（机库内）：购买后整店刷新（星币/按钮态变化），选择只刷新机体卡 */
function buildShips(){
  const box=$("ship-pick");box.innerHTML="";
  for(const k in SHIPS){
    const s=SHIPS[k],owned=SAVE.ships.includes(k);
    const d=document.createElement("div");
    d.className="pcard"+(owned?"":" lock")+(SETUP.ship===k?" sel":"");
    const c=document.createElement("canvas");c.width=52;c.height=64;
    const g=c.getContext("2d");g.imageSmoothingEnabled=false;
    const spr=SPR[s.spr];g.drawImage(spr,(52-spr.width*3)/2,(64-spr.height*3)/2,spr.width*3,spr.height*3);
    d.appendChild(c);
    d.insertAdjacentHTML("beforeend",`<div class="nm">${s.name}</div><div class="ds">${s.trait}</div>`+(owned?"":`<div class="cost">✦ ${s.cost} 解锁</div>`));
    d.onclick=()=>{
      if(!SAVE.ships.includes(k)){
        if(SAVE.coins>=s.cost){SAVE.coins-=s.cost;SAVE.ships.push(k);persist();SFX.level();buildShop();}
        else SFX.hurt();
        return;
      }
      SETUP.ship=k;persist();buildShips();   // persist 触发云端同步选中机体
    };
    box.appendChild(d);
  }
}
/* ================= 机库商店 ================= */
const META=[
 {key:"weapon",name:"主武器校准",ds:"出击时主武器等级 +1",max:2,costs:[300,800]},
 {key:"armor",name:"强化装甲",ds:"出击时生命上限 +1",max:2,costs:[400,1000]},
 {key:"hpup",name:"结构强化",ds:"出击时结构值 +15",max:2,costs:[250,700]},
 {key:"luck",name:"幸运币",ds:"高品质强化概率提升",max:2,costs:[350,900]},
 {key:"wallet",name:"收藏家协议",ds:"星币获取 +15%",max:3,costs:[300,800,2000]},
 {key:"mag2",name:"引力透镜",ds:"拾取范围 +15%",max:2,costs:[200,600]},
 {key:"odstart",name:"超频预载",ds:"出击时超频已充能 50%",max:1,costs:[500]}
];
function buildShop(){
  $("wallet").textContent=SAVE.coins;
  buildShips();
  const box=$("shop");box.innerHTML="";
  for(const m of META){
    const lv=SAVE.m[m.key]||0,maxed=lv>=m.max,cost=maxed?0:m.costs[lv];
    const d=document.createElement("div");d.className="sitem";
    d.innerHTML=`<div class="inf"><div class="nm">${m.name}</div><div class="ds">${m.ds}</div>
      <div class="pips">${"■".repeat(lv)}${"□".repeat(m.max-lv)}</div></div>
      <button ${maxed||SAVE.coins<cost?"disabled":""}>${maxed?"MAX":"✦ "+cost}</button>`;
    if(!maxed)d.querySelector("button").onclick=()=>{
      if(SAVE.coins<cost)return;
      SAVE.coins-=cost;SAVE.m[m.key]=lv+1;persist();SFX.coin();buildShop();
    };
    box.appendChild(d);
  }
}
/* ================= 开局 / 暂停 / 结算 ================= */
function startGame(){
  AU.init();if(AU.ctx&&AU.ctx.state==="suspended")AU.ctx.resume();
  newRun(SETUP.mode,SETUP.ship,SETUP.diff);
  UI="play";show("");acc=0;
  MUS.start(false);
  banner(SETUP.mode==="stage"?"STAGE 1 — "+STAGE_NAMES[0]:"无尽模式 — 生存到底！","#41e6ff",130);
  startWave();
}
function togglePause(){
  if(!G)return;
  if(UI==="play"){UI="pause";buildLoadoutUI();show("o-pause");}
  else if(UI==="pause"){UI="play";show("");}
}
/* ================= 换装面板 ================= */
function buildLoadoutUI(){
  const box=$("loadout");if(!box||!G)return;box.innerHTML="";
  const mk=(title,dict,owned,active,max)=>{
    const sec=document.createElement("div");
    sec.innerHTML=`<div class="h3" style="margin:6px 0 2px">${title}（${active.length}/${max}）· 点击切换装备</div>`;
    const row=document.createElement("div");
    for(const k in owned){
      const d=document.createElement("span");
      const on=active.includes(k);
      d.className="litem"+(on?" on":"");
      d.textContent=`${dict[k].name} Lv${owned[k]}`;
      d.onclick=()=>{
        const i=active.indexOf(k);
        if(i>=0){if(active===G.loadout&&active.length===1){SFX.hurt();return;}active.splice(i,1);}
        else{if(active.length>=max){SFX.hurt();return;}active.push(k);}
        SFX.pick();buildLoadoutUI();
      };
      row.appendChild(d);
    }
    if(Object.keys(owned).length===0)row.innerHTML='<span class="small">尚未获得</span>';
    sec.appendChild(row);box.appendChild(sec);
  };
  mk("主武器",WEAPONS,G.weapons,G.loadout,5);
  mk("副武器",SUBS,G.subs,G.subLoadout,5);
  mk("僚机",DRONES,G.drones,G.droneLoadout,3);
}
/* ================= 图鉴 ================= */
function iconCanvas(img,size,sil){
  const c=document.createElement("canvas");c.width=c.height=size;
  const g=c.getContext("2d");g.imageSmoothingEnabled=false;
  const sc=Math.min(size/img.width,size/img.height);
  g.drawImage(img,(size-img.width*sc)/2,(size-img.height*sc)/2,img.width*sc,img.height*sc);
  if(sil){g.globalCompositeOperation="source-atop";g.fillStyle="#232f52";g.fillRect(0,0,size,size);g.globalCompositeOperation="source-over";}
  return c;
}
function buildCodex(){
  const box=$("codex");box.innerHTML="";
  const total=MAINS.length+SUB_KEYS.length+DRONE_KEYS.length+PAS_KEYS.length;
  $("codex-t").textContent=total;
  $("codex-n").textContent=codexCount();   // 计数永远显示真实收集数，测试模式不影响
  $("codex-test").style.display=codexTestAll?"":"none";
  $("cx-secret").style.color=codexTestAll?"var(--gold)":"";   // 开启后“军”字变金
  const mk=(title,keys,dict,kind)=>{
    const h=document.createElement("div");h.className="cx-sec";h.textContent=title;box.appendChild(h);
    const grid=document.createElement("div");grid.className="cx-grid";
    for(const k of keys){
      const def=dict[k],owned=!!SAVE.codex[k]||codexTestAll;   // 测试模式：全部可见可演示
      const d=document.createElement("div");
      d.className="cx-item"+(owned?"":" lock");   // 未收集：剪影+???，不可演示
      const img=def.icon?ICONS[def.icon]:SPR[def.spr];
      d.appendChild(iconCanvas(img,28,!owned));
      d.insertAdjacentHTML("beforeend",`<div class="nm">${owned?def.name:"???"}</div>`);
      if(owned)d.onclick=()=>{SFX.pick();startDemoSim(kind,k);};
      grid.appendChild(d);
    }
    box.appendChild(grid);
  };
  mk("主武器",MAINS,WEAPONS,"m");
  mk("副武器",SUB_KEYS,SUBS,"s");
  mk("僚机",DRONE_KEYS,DRONES,"d");
  mk("被动强化",PAS_KEYS,PASSIVES,"p");
}
document.addEventListener("visibilitychange",()=>{if(document.hidden&&UI==="play")togglePause();});
function bank(){
  if(!G||G.banked)return;G.banked=true;
  SAVE.coins+=G.coins;
  if(G.mode!=="rush"){const bk=(G.mode==="endless"?"e":"s")+G.diff;
    SAVE.best[bk]=Math.max(SAVE.best[bk]||0,G.score);}
  persist();
}
/* ---- Boss 挑战模式 ---- */
function buildRush(){
  G=null;   // 清掉上一局残留（rush胜利后G仍在），防背景卡残影
  SAVE.rush=SAVE.rush||{};
  const ra=$("rush-anim");   // 老虎机开关（持久化）
  if(ra){ra.checked=!!SAVE.rushAnim;ra.onchange=()=>{SAVE.rushAnim=ra.checked?1:0;persist();};}
  const el=$("rush-pick");el.innerHTML="";
  BOSSES.forEach((b,i)=>{
    const best=SAVE.rush[i];
    const d=document.createElement("div");d.className="pcard";
    d.innerHTML=`<div class="nm" style="margin-top:2px;color:${b.col}">${b.name}${best?" ✓":""}</div>
      <div class="ds">${b.sub}<br>${best?("最快 "+Math.floor(best/60)+":"+("0"+best%60).slice(-2)):"未击破"}</div>`;
    d.onclick=()=>startRush(i);
    el.appendChild(d);
  });
}
function rollRushBuild(){   // 随机武装：3主武Lv3 + 3副武Lv3 + 2僚机Lv2
  const sh=a=>{const x=a.slice();for(let i=x.length-1;i>0;i--){const j=rndi(0,i),t2=x[i];x[i]=x[j];x[j]=t2;}return x;};
  return {m:sh(Object.keys(WEAPONS)).slice(0,3),s:sh(Object.keys(SUBS)).slice(0,3),d:sh(Object.keys(DRONES)).slice(0,2)};
}
function startRush(i){
  AU.init();if(AU.ctx&&AU.ctx.state==="suspended")AU.ctx.resume();
  const build=rollRushBuild();
  if(SAVE.rushAnim)playSlot(build,()=>startRushGo(i,build));   // 老虎机动画抽取
  else startRushGo(i,build);                                    // 直接随机
}
function startRushGo(i,build){
  newRun("rush","falcon",0);
  G.weapons={};build.m.forEach(k=>G.weapons[k]=3);G.loadout=build.m.slice();
  G.subs={};build.s.forEach(k=>G.subs[k]=3);G.subLoadout=build.s.slice();
  G.drones={};build.d.forEach(k=>G.drones[k]=2);G.droneLoadout=build.d.slice();
  G.xpNeed=1e9;   // 挑战模式无升级打断
  G.rushIdx=i;G.rushT0=0;
  UI="play";show("");acc=0;
  MUS.start(true);
  banner("BOSS 挑战 — "+BOSSES[i].name,"#ff5566",130);
  G.rushT0=G.time;
  startBoss();
}
/* ---- 老虎机抽奖动画 ---- */
let slotTimers=[];
function playSlot(build,cb){
  UI="slot";show("o-slot");
  const row=$("slot-row");row.innerHTML="";
  $("slot-hint").textContent="　";
  const items=[
    ...build.m.map(k=>({cat:"主武器",pool:WEAPONS,key:k})),
    ...build.s.map(k=>({cat:"副武器",pool:SUBS,key:k})),
    ...build.d.map(k=>({cat:"僚机",pool:DRONES,key:k}))];
  let done=0;
  items.forEach((it,idx)=>{
    const d=document.createElement("div");d.className="slotbox";
    d.innerHTML=`<div class="sc">${it.cat}</div><div class="sn">???</div>`;
    row.appendChild(d);
    const sn=d.querySelector(".sn"),names=Object.values(it.pool).map(x=>x.name);
    const iv=setInterval(()=>{sn.textContent=names[rndi(0,names.length-1)];},60);
    slotTimers.push(iv);
    setTimeout(()=>{clearInterval(iv);
      sn.textContent=it.pool[it.key].name;sn.classList.add("hit");
      SFX.graze();done++;
      if(done>=items.length){$("slot-hint").textContent="— 出击 —";setTimeout(cb,700);}
    },700+idx*280);
  });
}
/* 结算上报服务端（每局一次，含rush胜利；图鉴演示除外） */
function submitRun(win){
  if(!G||G.submitted||G.demoSim)return;
  G.submitted=true;
  if(typeof NET==="undefined"||!NET.user)return;
  NET.submitRun({mode:G.mode,diff:G.diff,score:G.score,wave:G.wave,stage:G.stage,
    timeSec:Math.round(G.time/60),bossKills:G.bossKills||0,win:!!win,
    codex:Object.keys(SAVE.codex)});   // 注意：不上报 localStorage 历史最高分（SAVE.best 是浏览器级共享，会串号）
}
function endRun(win){
  if(UI==="over")return;
  bank();MUS.stop();
  submitRun(win);
  if(G.mode==="endless"&&typeof NET!=="undefined"&&NET.user)NET.deleteRunSave();   // 对局真正结束：清除云端断点存档
  UI="over";
  $("over-title").textContent=win?"★ 任务完成 ★":"任务失败";
  $("over-title").style.color=win?"#ffcf5c":"#ff5566";
  const mins=Math.floor(G.time/3600),secs=Math.floor(G.time/60)%60;
  $("over-stats").innerHTML=
    `<span>最终得分</span><b>${G.score}</b>
     <span>${G.mode==="endless"?"抵达波次":G.mode==="rush"?"挑战目标":"抵达关卡"}</span><b>${G.mode==="endless"?G.wave:G.mode==="rush"?BOSSES[G.rushIdx].name:G.stage+"-"+G.wave}</b>
     <span>击坠数</span><b>${G.kills}</b>
     <span>强化等级</span><b>Lv.${G.level}</b>
     <span>存活时间</span><b>${mins}分${secs}秒</b>
     <span>持有军械</span><b>${Object.keys(G.weapons).length}主/${Object.keys(G.subs).length}副/${Object.keys(G.drones).length}机</b>`;
  $("over-coins").textContent=G.coins;
  setTimeout(()=>show("o-over"),win?400:900);
}
/* ================= 三选一卡片 ================= */
function offerCards(bossRare){
  if(!G||G.p.dead>0&&!bossRare)return;
  G.bossCard=!!bossRare;
  const opts=rollCards(bossRare);
  G.cardOpts=opts;
  const box=$("cards");box.innerHTML="";
  opts.forEach((c,i)=>{
    let nm,ds,rare,img;
    if(c.kind==="wlvl"){const w=WEAPONS[c.key],lv=G.weapons[c.key];nm=w.name;rare=w.rare;ds=`主武器强化 Lv.${lv} → Lv.${lv+1}`;img=w.icon?ICONS[w.icon]:SPR[w.spr];}
    else if(c.kind==="weapon"){const w=WEAPONS[c.key];nm="主武器·"+w.name;rare=w.rare;ds=w.ds;img=w.icon?ICONS[w.icon]:SPR[w.spr];}
    else if(c.kind==="slvl"){const u=SUBS[c.key],lv=G.subs[c.key];nm=u.name;rare=u.rare;ds=`副武器强化 Lv.${lv} → Lv.${lv+1}`;img=u.icon?ICONS[u.icon]:SPR[u.spr];}
    else if(c.kind==="sub"){const u=SUBS[c.key];nm="副武器·"+u.name;rare=u.rare;ds=typeof u.ds==="function"?u.ds(0):u.ds;img=u.icon?ICONS[u.icon]:SPR[u.spr];}
    else if(c.kind==="dlvl"){const u=DRONES[c.key],lv=G.drones[c.key];nm=u.name;rare=u.rare;ds=`僚机强化 Lv.${lv} → Lv.${lv+1}`;img=SPR[u.spr];}
    else if(c.kind==="drone"){const u=DRONES[c.key];nm="僚机·"+u.name;rare=u.rare;ds=typeof u.ds==="function"?u.ds(0):u.ds;img=SPR[u.spr];}
    else if(c.kind==="upg"){const u=PASSIVES[c.key];nm=u.name;rare=u.rare;ds=u.ds(G.u[c.key]);img=u.icon?ICONS[u.icon]:SPR[u.spr];}
    else{rare=0;
      if(c.key==="heal"){nm="紧急修复";ds="生命 +1";img=SPR.heart;}
      else if(c.key==="coins"){nm="星币补给";ds="星币 +50";img=SPR.coin;}
      else{nm="超频充能";ds="超频立即充满";img=SPR.odc;}}
    const d=document.createElement("div");
    d.className="ucard r"+rare;
    const cv2=document.createElement("canvas");cv2.width=40;cv2.height=40;
    const g=cv2.getContext("2d");g.imageSmoothingEnabled=false;
    const sc=Math.min(40/img.width,40/img.height);
    g.drawImage(img,(40-img.width*sc)/2,(40-img.height*sc)/2,img.width*sc,img.height*sc);
    d.appendChild(cv2);
    d.insertAdjacentHTML("beforeend",
      `<div class="key">${i+1}</div><div class="nm">${nm}</div>
       <div class="rtag">${["普通","稀有","史诗"][rare]}</div><div class="ds">${ds}</div>`);
    d.onclick=()=>pickCard(i);
    box.appendChild(d);
  });
  UI="cards";show("o-cards");SFX.level();
}
function pickCard(i){
  if(UI!=="cards"||!G.cardOpts||!G.cardOpts[i])return;
  const c=G.cardOpts[i];G.cardOpts=null;
  if(c.kind==="wlvl")G.weapons[c.key]++;
  else if(c.kind==="weapon"){G.weapons[c.key]=1;if(G.loadout.length<5)G.loadout.push(c.key);banner("获得 "+WEAPONS[c.key].name,"#b98cff",80);}
  else if(c.kind==="slvl")G.subs[c.key]++;
  else if(c.kind==="sub"){G.subs[c.key]=1;if(G.subLoadout.length<5)G.subLoadout.push(c.key);banner("获得 "+SUBS[c.key].name,"#b98cff",80);}
  else if(c.kind==="dlvl")G.drones[c.key]++;
  else if(c.kind==="drone"){G.drones[c.key]=1;if(G.droneLoadout.length<3)G.droneLoadout.push(c.key);banner("获得 "+DRONES[c.key].name,"#b98cff",80);}
  else if(c.kind==="upg"){
    G.u[c.key]++;
    if(c.key==="nano"){G.maxHp+=25;G.hp=Math.min(G.maxHp,G.hp+40);}
    if(c.key==="shield")G.shield=Math.min(shieldCap(),G.shield+1);
  }else{
    if(c.key==="heal")G.lives=Math.min(G.stat.maxLives,G.lives+1);
    if(c.key==="coins")addCoins(50);
    if(c.key==="od")G.od=100;
  }
  if(c.key&&c.kind!=="fill"){SAVE.codex[c.key]=true;persist();} // 图鉴收录
  SFX.pick();
  if(G.bossCard){G.bossCard=false;UI="play";show("");}
  else{G.cardQ=(G.cardQ||1)-1;
    if(G.cardQ>0)offerCards(false);
    else{UI="play";show("");}}
}
/* ================= 图鉴：全屏实战模拟 =================
   复用真实战斗引擎：只装备选定军械，杂兵+射手+精英持续来袭 */
function startDemoSim(kind,key){
  const def=kind==="m"?WEAPONS[key]:kind==="s"?SUBS[key]:kind==="p"?PASSIVES[key]:DRONES[key];
  newRun("stage","falcon",0);
  G.p.inv=0;   // 图鉴演示：取消出生保护闪烁
  const lv=3;
  G.demoSim={kind,key};
  if(kind==="m"){G.weapons={};G.weapons[key]=lv;G.loadout=[key];}
  else if(kind==="s"){G.weapons={vulcan:1};G.loadout=["vulcan"];G.subs={};G.subs[key]=lv;G.subLoadout=[key];}
  else if(kind==="d"){G.weapons={};G.loadout=[];G.drones={};G.drones[key]=lv;G.droneLoadout=[key];}
  else{G.weapons={vulcan:2};G.loadout=["vulcan"];G.u[key]=3;
    if(key==="nano"){G.maxHp+=75;G.hp=G.maxHp;}
    if(key==="shield")G.shield=shieldCap();}
  $("demo-name").textContent=def.name;
  const ds=typeof def.ds==="function"?def.ds(lv):def.ds;
  $("demo-ds").textContent=ds;   // 只显示介绍本身，单行不折行（nowrap 在 index.html 上）
  UI="demoSim";show("o-demo");acc=0;
  banner(def.name,"#41e6ff",90);
}
function exitDemoSim(){G=null;UI="codex";buildCodex();show("o-codex");}
function demoSpawn(){
  const D=G.demoSim;
  D.t=(D.t||0)-1;
  if(D.t>0||G.enemies.length>=10)return;
  D.t=Math.max(30,52-Math.floor(G.time/900));   // 渐进增密
  const r=Math.random();
  if(r<0.5)spawnEnemy(pick(["scout","scout","weaver","kami"]),rnd(20,W-20),-12,false);        // 杂兵为主
  else if(r<0.84)spawnEnemy(pick(["gunship","splitter","sniper","mine"]),rnd(20,W-20),-12,false); // 射手少数
  else spawnEnemy(pick(["gunship","weaver","splitter"]),rnd(20,W-20),-12,true);                 // 精英
}
bestLine();