BROWSETEROIDS

Drag this button to your bookmarks bar — in Firefox you can also right-click it and choose Bookmark Link… Then on any page that's playing audio (YouTube, SoundCloud…), click it: the game hooks that page's sound. Click it again to quit. Or click it right here to try it on this very page.
🕹️ BROWSETEROIDS
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javascript:(function(global){'use%20strict';const%20VERSION='1.1.0';const%20TAU=Math.PI*2;const%20rand=(a,b)=%3Ea+Math.random()*(b-a);const%20randInt=(a,b)=%3EMath.floor(a+Math.random()*(b-a+1));const%20choice=(arr)=%3Earr[(Math.random()*arr.length)%7C0];const%20clamp=(v,a,b)=%3E(v%3Ca%3Fa:v%3Eb%3Fb:v);const%20lerp=(a,b,t)=%3Ea+(b-a)*t;const%20dist2=(ax,ay,bx,by)=%3E{const%20dx=ax-bx,dy=ay-by;return%20dx*dx+dy*dy;};const%20hit=(a,b,ra,rb)=%3Edist2(a.x,a.y,b.x,b.y)%3C(ra+rb)*(ra+rb);const%20pad=(n,w)=%3EString(n%7C0).padStart(w,'0');function%20wrapEntity(e,w,h,m){if(e.x%3C-m)e.x+=w+m*2;else%20if(e.x%3Ew+m)e.x-=w+m*2;if(e.y%3C-m)e.y+=h+m*2;else%20if(e.y%3Eh+m)e.y-=h+m*2;}function%20createAnalyserAdapter(audioCtx,sourceNode){const%20analyser=audioCtx.createAnalyser();analyser.fftSize=2048;analyser.smoothingTimeConstant=0.5;sourceNode.connect(analyser);const%20bins=analyser.frequencyBinCount;const%20freq=new%20Uint8Array(bins);const%20wave=new%20Uint8Array(analyser.fftSize);const%20hzPerBin=audioCtx.sampleRate/analyser.fftSize;const%20bLo=Math.max(1,Math.round(20/hzPerBin));const%20bHi=Math.round(250/hzPerBin);const%20mHi=Math.round(2000/hzPerBin);const%20tHi=Math.min(bins-1,Math.round(8000/hzPerBin));function%20band(lo,hi){let%20s=0;for(let%20i=lo;i%3C=hi;i++)s+=freq[i];return%20s/((hi-lo+1)*255);}return{getFrame(){analyser.getByteFrequencyData(freq);analyser.getByteTimeDomainData(wave);let%20sum=0,n=0;for(let%20i=0;i%3Cwave.length;i+=4){const%20d=(wave[i]-128)/128;sum+=d*d;n++;}let%20num=0,den=0;for(let%20i=bLo;i%3C=tHi;i+=2){num+=i*freq[i];den+=freq[i];}return{t:(typeof%20performance!=='undefined'%3Fperformance.now():Date.now()),bass:clamp(band(bLo,bHi)*1.05,0,1),mid:clamp(band(bHi+1,mHi)*1.3,0,1),treble:clamp(band(mHi+1,tHi)*1.7,0,1),rms:clamp(Math.sqrt(sum/Math.max(1,n))*1.5,0,1),centroid:den%3E0%3Fclamp((num/den-bLo)/(tHi-bLo),0,1):0,};},destroy(){try{sourceNode.disconnect(analyser);}catch(e){}},};}class%20BeatDetector{constructor(){this.hist=[];this.lastBeat=0;}reset(){this.hist.length=0;this.lastBeat=0;}push(f){const%20now=f.t;this.hist.push({t:now,e:f.bass});while(this.hist.length%26%26now-this.hist[0].t%3E1100)this.hist.shift();if(this.hist.length%3C8)return%20null;let%20s=0;for(let%20i=0;i%3Cthis.hist.length;i++)s+=this.hist[i].e;const%20avg=s/this.hist.length;if(f.bass%3E0.075%26%26f.bass%3Eavg*1.32%26%26now-this.lastBeat%3E170){this.lastBeat=now;return{strength:avg%3E0.02%3Ff.bass/avg:1.5,energy:f.bass};}return%20null;}}const%20T={ship:'%235ef1ff',thrust:'%23ffb066',bullet:'%23eaffff',ebullet:'%23ff6ea9',ufo:'%23ff5ce1',text:'%23c9f2ff',dim:'rgba(150,215,255,0.6)',gold:'%23ffd76a',danger:'%23ff5c7a',rockHue:(centroid)=%3E185+centroid*120,rock:(centroid,l)=%3E%60hsl(${185%20+%20centroid%20*%20120}%2095%25%20${l%20%7C%7C%2068}%25)%60,};const%20POWERUPS={shield:{weight:24,color:'%2354e8ff',glyph:'S',name:'SHIELD'},triple:{weight:21,color:'%23c07bff',glyph:'T',name:'TRIPLE%20SHOT'},rapid:{weight:21,color:'%23ffb347',glyph:'R',name:'RAPID%20FIRE'},bomb:{weight:17,color:'%23ff5c7a',glyph:'B',name:'BOMB'},life:{weight:9,color:'%236dff9c',glyph:'+',name:'EXTRA%20LIFE'},};const%20ROCK={3:{r:46,score:20,verts:[10,13]},2:{r:26,score:50,verts:[9,11]},1:{r:13,score:100,verts:[7,9]},};const%20CFG={shipAccel:275,shipTurn:3.9,shipMaxSpeed:430,shipDamping:0.45,fireRate:0.16,fireRateRapid:0.075,bulletSpeed:570,bulletLife:0.85,ebulletSpeed:235,respawnDelay:1.4,invulnTime:2.6,startLives:3,maxLives:5,hyperCooldown:2.5,comboWindow:2.2,comboMax:8,diffRampSec:40,powerupTTL:9,bombRadius:300,magnetRadius:110,};class%20Starfield{constructor(){this.stars=[];this.w=0;this.h=0;}resize(w,h){this.w=w;this.h=h;const%20n=clamp(Math.round((w*h)/9000),60,220);this.stars.length=0;for(let%20i=0;i%3Cn;i++){this.stars.push({x:rand(0,w),y:rand(0,h),z:rand(0.25,1),tw:rand(0,TAU),});}}update(dt,shipVx,shipVy){for(const%20s%20of%20this.stars){s.x-=shipVx*s.z*0.05*dt;s.y-=shipVy*s.z*0.05*dt;s.y+=s.z*6*dt;s.tw+=dt*(1.2+s.z);if(s.x%3C0)s.x+=this.w;else%20if(s.x%3Ethis.w)s.x-=this.w;if(s.y%3C0)s.y+=this.h;else%20if(s.y%3Ethis.h)s.y-=this.h;}}draw(ctx,au,beatFlash){const%20hue=195+au.centroid*90;for(const%20s%20of%20this.stars){const%20twinkle=0.55+0.45*Math.sin(s.tw);const%20a=clamp(s.z*(0.28+au.rms*0.55+beatFlash*0.35*s.z)*twinkle,0.04,0.95);const%20r=s.z*(1.1+beatFlash*0.9);ctx.fillStyle=%60hsla(${hue}%2090%25%2080%25%20/%20${a})%60;ctx.fillRect(s.x-r/2,s.y-r/2,r,r);}}}class%20Particles{constructor(max){this.pool=[];this.max=max%7C%7C420;}spawn(x,y,opts){const%20o=opts%7C%7C{};const%20n=o.n%7C%7C12;for(let%20i=0;i%3Cn;i++){if(this.pool.length%3E=this.max)this.pool.shift();const%20a=o.angle!=null%3Fo.angle+rand(-(o.spread%7C%7CTAU),o.spread%7C%7CTAU):rand(0,TAU);const%20sp=rand(o.minSpeed%7C%7C30,o.maxSpeed%7C%7C220);this.pool.push({x,y,vx:Math.cos(a)*sp+(o.vx%7C%7C0),vy:Math.sin(a)*sp+(o.vy%7C%7C0),life:0,max:rand(o.minLife%7C%7C0.25,o.maxLife%7C%7C0.8),size:rand(o.minSize%7C%7C1,o.maxSize%7C%7C2.6),color:o.color%7C%7C'%239ff',});}}update(dt){const%20p=this.pool;for(let%20i=p.length-1;i%3E=0;i--){const%20q=p[i];q.life+=dt;if(q.life%3E=q.max){p.splice(i,1);continue;}q.x+=q.vx*dt;q.y+=q.vy*dt;q.vx*=1-1.6*dt;q.vy*=1-1.6*dt;}}draw(ctx){for(const%20q%20of%20this.pool){const%20k=1-q.life/q.max;ctx.globalAlpha=k*0.9;ctx.fillStyle=q.color;const%20s=q.size*(0.5+k*0.7);ctx.fillRect(q.x-s/2,q.y-s/2,s,s);}ctx.globalAlpha=1;}}class%20Game{constructor(host){this.host=host;this.canvas=host.canvas;this.ctx=this.canvas.getContext('2d');this.running=true;this.state='title';this.paused=false;this.score=0;this.high=0;this.highIsNew=false;this.lives=CFG.startLives;this.combo=1;this.lastKillAt=-1e9;this.tPlay=0;this.level=1;this.ship=null;this.asteroids=[];this.bullets=[];this.ebullets=[];this.ufos=[];this.powerups=[];this.toasts=[];this.shocks=[];this.effects={shield:0,triple:0,rapid:0};this.stars=new%20Starfield();this.parts=new%20Particles(420);this.beatDet=new%20BeatDetector();this.au={bass:0,mid:0,treble:0,rms:0,centroid:0,live:false};this.beatFlash=0;this.shake=0;this.ufoMeter=0;this.nextDrift=2;this.sourceToast=0;this._lastFrameT=-1;this._lastFrameAt=-1e9;this._injQ=[];this.stats={frames:0,beats:0,beatSpawns:0,ufosSpawned:0,drops:0};this.keys=new%20Set();this._onKeyDown=(e)=%3Ethis.handleKey(e,true);this._onKeyUp=(e)=%3Ethis.handleKey(e,false);this._onResize=()=%3Ethis.resize();this._onVis=()=%3E{if(document.hidden%26%26this.state==='playing')this.paused=true;};window.addEventListener('keydown',this._onKeyDown,true);window.addEventListener('keyup',this._onKeyUp,true);window.addEventListener('resize',this._onResize);document.addEventListener('visibilitychange',this._onVis);this.resize();this.resetShip();this.seedAmbient();try{Promise.resolve(host.storage%26%26host.storage.get%3Fhost.storage.get():0).then((v)=%3E{this.high=Math.max(this.high,(v%7C0)%7C%7C0);}).catch(()=%3E{});}catch(e){}this._lastNow=0;this._raf=requestAnimationFrame((n)=%3Ethis.loop(n));}resize(){const%20rect=this.canvas.getBoundingClientRect();const%20w=Math.max(200,Math.round(rect.width%7C%7Cwindow.innerWidth));const%20h=Math.max(200,Math.round(rect.height%7C%7Cwindow.innerHeight));const%20dpr=clamp(window.devicePixelRatio%7C%7C1,1,2);this.w=w;this.h=h;this.dpr=dpr;this.canvas.width=Math.round(w*dpr);this.canvas.height=Math.round(h*dpr);this.stars.resize(w,h);}destroy(){this.running=false;cancelAnimationFrame(this._raf);window.removeEventListener('keydown',this._onKeyDown,true);window.removeEventListener('keyup',this._onKeyUp,true);window.removeEventListener('resize',this._onResize);document.removeEventListener('visibilitychange',this._onVis);this.saveHigh();}saveHigh(){try{if(this.host.storage%26%26this.host.storage.set)this.host.storage.set(this.high%7C0);}catch(e){}}handleKey(e,down){if(!this.running)return;if(e.metaKey%7C%7Ce.ctrlKey%7C%7Ce.altKey)return;const%20k=e.code;const%20MOVE=['ArrowLeft','ArrowRight','ArrowUp','ArrowDown','KeyA','KeyD','KeyW','KeyS','Space','ShiftLeft','ShiftRight'];const%20ACT=['Enter','NumpadEnter','KeyP','KeyM','Escape'];if(!MOVE.includes(k)%26%26!ACT.includes(k))return;e.preventDefault();e.stopImmediatePropagation();if(down)this.keys.add(k);else%20this.keys.delete(k);if(!down)return;if(e.repeat)return;if(k==='Enter'%7C%7Ck==='NumpadEnter'){if(this.state==='title')this.startRun();else%20if(this.state==='gameover')this.startRun();else%20if(this.state==='playing'%26%26this.paused)this.paused=false;}else%20if(k==='Space'%26%26this.state==='title'){this.startRun();}else%20if(k==='KeyP'%26%26this.state==='playing'){this.paused=!this.paused;}else%20if(k==='KeyM'%26%26this.host.cycleSource){Promise.resolve(this.host.cycleSource()).then(()=%3E{this.toast(this.audioLabel(),this.w/2,this.h*0.72,T.dim,15);}).catch(()=%3E{});}else%20if(k==='Escape'){if(this.state==='playing'){this.saveHigh();this.state='title';this.paused=false;this.seedAmbient();}else%20if(this.state==='gameover'){this.state='title';this.seedAmbient();}else%20if(this.host.onQuit){this.host.onQuit();}}else%20if((k==='ShiftLeft'%7C%7Ck==='ShiftRight')%26%26this.state==='playing'%26%26!this.paused){this.hyperspace();}}audioLabel(){try{return(this.host.audio%26%26this.host.audio.label%26%26this.host.audio.label())%7C%7C'NO%20AUDIO';}catch(e){return'NO%20AUDIO';}}resetShip(){this.ship={x:this.w/2,y:this.h/2,vx:0,vy:0,angle:-TAU/4,cooldown:0,invuln:CFG.invulnTime,dead:false,respawn:0,hyperCd:0,};}seedAmbient(){this.asteroids.length=0;this.bullets.length=0;this.ebullets.length=0;this.ufos.length=0;this.powerups.length=0;this.shocks.length=0;for(let%20i=0;i%3C4;i++)this.spawnAsteroidEdge(randInt(2,3),0.15,true);}startRun(){this.state='playing';this.paused=false;this.score=0;this.highIsNew=false;this.lives=CFG.startLives;this.combo=1;this.lastKillAt=-1e9;this.tPlay=0;this.level=1;this.ufoMeter=0;this.nextDrift=1.5;this.effects.shield=this.effects.triple=this.effects.rapid=0;this.asteroids.length=0;this.bullets.length=0;this.ebullets.length=0;this.ufos.length=0;this.
powerups.length=0;this.toasts.length=0;this.shocks.length=0;this.resetShip();for(let%20i=0;i%3C3;i++)this.spawnAsteroidEdge(randInt(2,3),0.2,true);}gameOver(){this.state='gameover';this.goAt=this.tPlay;this.saveHigh();}get%20diff(){return%201+this.tPlay/CFG.diffRampSec;}updateAudio(now,dt){let%20f=null;if(this._injQ.length){f=this._injQ.shift();if(f%26%26f.t==null)f.t=now;}else%20if(this.host.audio%26%26this.host.audio.getFrame){try{f=this.host.audio.getFrame();}catch(e){f=null;}}if(f%26%26f.t!==this._lastFrameT){this._lastFrameT=f.t;this._lastFrameAt=now;this.stats.frames++;this.au.bass=f.bass;this.au.mid=f.mid;this.au.treble=f.treble;this.au.rms=f.rms;this.au.centroid=lerp(this.au.centroid,f.centroid,0.25);this.au.live=true;const%20b=this.beatDet.push(f);if(b)this.onBeat(b);}else%20if(now-this._lastFrameAt%3E600){const%20k=Math.exp(-dt*3);this.au.bass*=k;this.au.mid*=k;this.au.treble*=k;this.au.rms*=k;this.au.live=false;}this.beatFlash=Math.max(0,this.beatFlash-dt*3.2);}onBeat(b){this.stats.beats++;this.beatFlash=1;if(this.state!=='playing'%7C%7Cthis.paused)return;if(this.asteroids.length%3E=this.asteroidCap())return;const%20au=this.au;let%20size;if(au.treble%3Eau.bass%26%26au.treble%3E0.28)size=1;else%20if(b.strength%3E1.75%26%26au.bass%3E0.42)size=3;else%20size=Math.random()%3C0.42%3F3:2;this.spawnAsteroidEdge(size,b.energy);this.stats.beatSpawns++;}asteroidCap(){return%20Math.min(16,4+Math.floor(this.diff*2.2));}spawnAsteroidEdge(size,energy,gentle){const%20m=ROCK[size].r;let%20x,y;for(let%20attempt=0;attempt%3C5;attempt++){const%20side=randInt(0,3);if(side===0){x=-m;y=rand(0,this.h);}else%20if(side===1){x=this.w+m;y=rand(0,this.h);}else%20if(side===2){x=rand(0,this.w);y=-m;}else{x=rand(0,this.w);y=this.h+m;}if(!this.ship%7C%7Cthis.ship.dead%7C%7Cdist2(x,y,this.ship.x,this.ship.y)%3E180*180)break;}const%20tx=rand(this.w*0.2,this.w*0.8);const%20ty=rand(this.h*0.2,this.h*0.8);const%20a=Math.atan2(ty-y,tx-x)+rand(-0.35,0.35);let%20speed=(46+105*clamp(energy%7C%7C0,0,1))*(0.9+0.12*(this.diff-1));if(gentle)speed=rand(18,42);speed=clamp(speed,14,270);this.asteroids.push(this.makeAsteroid(x,y,Math.cos(a)*speed,Math.sin(a)*speed,size));}makeAsteroid(x,y,vx,vy,size){const%20def=ROCK[size];const%20n=randInt(def.verts[0],def.verts[1]);const%20verts=[];for(let%20i=0;i%3Cn;i++){verts.push({a:(i/n)*TAU+rand(-0.12,0.12),m:rand(0.72,1.18)});}return{x,y,vx,vy,size,r:def.r*rand(0.9,1.1),rot:rand(0,TAU),spin:rand(-1.4,1.4),verts,seed:rand(0,TAU),};}splitAsteroid(a){if(a.size%3C=1)return;const%20sp=Math.hypot(a.vx,a.vy);for(let%20i=0;i%3C2;i++){const%20ang=Math.atan2(a.vy,a.vx)+(i===0%3F1:-1)*rand(0.5,1.35);const%20s=clamp(sp*1.28+rand(15,45),40,320);this.asteroids.push(this.makeAsteroid(a.x,a.y,Math.cos(ang)*s,Math.sin(ang)*s,a.size-1));}}destroyAsteroid(idx,opts){const%20o=opts%7C%7C{};const%20a=this.asteroids[idx];if(!a)return;this.asteroids.splice(idx,1);const%20color=T.rock(this.au.centroid);this.parts.spawn(a.x,a.y,{n:6+a.size*6,color,minSpeed:40,maxSpeed:90+a.size*60,maxLife:0.5+a.size*0.16,maxSize:2.6,});if(o.byPlayer)this.addScore(ROCK[a.size].score,a.x,a.y);if(!o.bomb)this.splitAsteroid(a);if(o.byPlayer%7C%7Co.bomb){let%20chance=(0.055+0.012*Math.min(this.diff,6))*(a.size===3%3F1.4:a.size===2%3F1:0.7);this.maybeDrop(a.x,a.y,chance);}this.shake=Math.min(14,this.shake+a.size*1.1);}spawnUfo(){const%20fromLeft=Math.random()%3C0.5;const%20d=this.diff;this.ufos.push({x:fromLeft%3F-30:this.w+30,y:rand(this.h*0.12,this.h*0.88),dir:fromLeft%3F1:-1,speed:rand(62,110)*(0.9+0.13*(d-1)),phase:rand(0,TAU),fire:rand(0.8,1.6),hp:1+(d%3E=4%3F1:0)+(d%3E=7%3F1:0),r:17,});this.stats.ufosSpawned++;}maybeDrop(x,y,chance){if(Math.random()%3Echance)return;let%20total=0;for(const%20k%20in%20POWERUPS)total+=POWERUPS[k].weight;let%20r=Math.random()*total,type='shield';for(const%20k%20in%20POWERUPS){r-=POWERUPS[k].weight;if(r%3C=0){type=k;break;}}if(type==='life'%26%26this.lives%3E=CFG.maxLives)type='bomb';this.powerups.push({x,y,vx:rand(-26,26),vy:rand(-26,26),type,ttl:CFG.powerupTTL,phase:rand(0,TAU),r:13,});this.stats.drops++;}fire(){const%20s=this.ship;if(s.cooldown%3E0%7C%7Cs.dead)return;s.cooldown=this.effects.rapid%3E0%3FCFG.fireRateRapid:CFG.fireRate;const%20angles=this.effects.triple%3E0%3F[-0.24,0,0.24]:[0];for(const%20off%20of%20angles){const%20a=s.angle+off;this.bullets.push({x:s.x+Math.cos(s.angle)*14,y:s.y+Math.sin(s.angle)*14,vx:Math.cos(a)*CFG.bulletSpeed+s.vx*0.55,vy:Math.sin(a)*CFG.bulletSpeed+s.vy*0.55,life:CFG.bulletLife,r:2.4,});}this.parts.spawn(s.x+Math.cos(s.angle)*15,s.y+Math.sin(s.angle)*15,{n:2,color:T.bullet,angle:s.angle,spread:0.5,minSpeed:60,maxSpeed:130,maxLife:0.2,});}hyperspace(){const%20s=this.ship;if(s.dead%7C%7Cs.hyperCd%3E0)return;this.parts.spawn(s.x,s.y,{n:18,color:T.ship,maxSpeed:260,maxLife:0.5});s.x=rand(this.w*0.12,this.w*0.88);s.y=rand(this.h*0.12,this.h*0.88);s.vx*=0.3;s.vy*=0.3;s.invuln=Math.max(s.invuln,0.7);s.hyperCd=CFG.hyperCooldown;this.parts.spawn(s.x,s.y,{n:18,color:T.ship,maxSpeed:200,maxLife:0.45});}bomb(x,y){this.shocks.push({x,y,r:10,max:CFG.bombRadius,life:0.55,t:0});for(let%20i=this.asteroids.length-1;i%3E=0;i--){const%20a=this.asteroids[i];if(dist2(x,y,a.x,a.y)%3CCFG.bombRadius*CFG.bombRadius){this.addScore(ROCK[a.size].score,a.x,a.y);this.destroyAsteroid(i,{bomb:true});}}for(let%20i=this.ufos.length-1;i%3E=0;i--){const%20u=this.ufos[i];if(dist2(x,y,u.x,u.y)%3CCFG.bombRadius*CFG.bombRadius){u.hp-=2;if(u.hp%3C=0)this.destroyUfo(i,true);}}for(let%20i=this.ebullets.length-1;i%3E=0;i--){const%20b=this.ebullets[i];if(dist2(x,y,b.x,b.y)%3CCFG.bombRadius*CFG.bombRadius)this.ebullets.splice(i,1);}this.shake=20;}destroyUfo(idx,silent){const%20u=this.ufos[idx];if(!u)return;this.ufos.splice(idx,1);this.parts.spawn(u.x,u.y,{n:26,color:T.ufo,maxSpeed:300,maxLife:0.8,maxSize:3});if(!silent)this.addScore(200+30*(this.level-1),u.x,u.y);this.maybeDrop(u.x,u.y,0.45);this.shake=Math.min(18,this.shake+6);}applyPowerup(p){const%20s=this.ship;const%20def=POWERUPS[p.type];this.addScore(50,p.x,p.y,true);if(p.type==='shield')this.effects.shield=Math.min(this.effects.shield+7,12);else%20if(p.type==='triple')this.effects.triple=Math.min(this.effects.triple+12,20);else%20if(p.type==='rapid')this.effects.rapid=Math.min(this.effects.rapid+12,20);else%20if(p.type==='bomb')this.bomb(s.x,s.y);else%20if(p.type==='life'){if(this.lives%3CCFG.maxLives)this.lives++;else%20this.addScore(500,p.x,p.y);}this.toast(def.name,s.x,s.y-34,def.color,15);this.parts.spawn(p.x,p.y,{n:14,color:def.color,maxSpeed:160,maxLife:0.5});}addScore(base,x,y,quiet){let%20pts=base;if(!quiet){const%20now=this.tPlay;this.combo=(now-this.lastKillAt%3CCFG.comboWindow)%3FMath.min(this.combo+1,CFG.comboMax):1;this.lastKillAt=now;pts=base*this.combo;if(this.combo%3E=2%26%26x!=null){this.toast('+'+pts+'%20%20%C3%97'+this.combo,x+rand(-16,16),y+rand(-10,10),T.gold,12);}}this.score+=pts;if(this.score%3Ethis.high){if(!this.highIsNew%26%26this.high%3E0){this.toast('NEW%20HIGH%20SCORE',this.w/2,this.h*0.2,T.gold,20);}this.highIsNew=true;this.high=this.score;}}toast(text,x,y,color,size){for(const%20t%20of%20this.toasts){if(Math.abs(t.x-x)%3C100%26%26Math.abs(t.y-y)%3C18)y=t.y-22;}this.toasts.push({text,x,y,vy:-26,life:0,max:1.5,color:color%7C%7CT.text,size:size%7C%7C14});}killShip(){const%20s=this.ship;if(s.dead%7C%7Cs.invuln%3E0)return;s.dead=true;s.respawn=CFG.respawnDelay;this.lives--;this.combo=1;this.effects.triple=0;this.effects.rapid=0;this.parts.spawn(s.x,s.y,{n:46,color:T.ship,minSpeed:40,maxSpeed:340,maxLife:1.1,maxSize:3.2});this.parts.spawn(s.x,s.y,{n:20,color:T.thrust,maxSpeed:220,maxLife:0.8});this.shake=22;if(this.lives%3C=0)this.gameOver();}update(dt){const%20inPlay=this.state==='playing';if(inPlay)this.tPlay+=dt;if(inPlay){const%20lvl=Math.floor(this.diff);if(lvl%3Ethis.level){this.level=lvl;this.toast('LEVEL%20'+lvl,this.w/2,this.h*0.3,T.danger,22);}}const%20s=this.ship;if(inPlay%26%26!s.dead){const%20left=this.keys.has('ArrowLeft')%7C%7Cthis.keys.has('KeyA');const%20right=this.keys.has('ArrowRight')%7C%7Cthis.keys.has('KeyD');const%20up=this.keys.has('ArrowUp')%7C%7Cthis.keys.has('KeyW');if(left)s.angle-=CFG.shipTurn*dt;if(right)s.angle+=CFG.shipTurn*dt;s.thrusting=up;if(up){s.vx+=Math.cos(s.angle)*CFG.shipAccel*dt;s.vy+=Math.sin(s.angle)*CFG.shipAccel*dt;const%20sp=Math.hypot(s.vx,s.vy);if(sp%3ECFG.shipMaxSpeed){s.vx*=CFG.shipMaxSpeed/sp;s.vy*=CFG.shipMaxSpeed/sp;}if(Math.random()%3C0.7){this.parts.spawn(s.x-Math.cos(s.angle)*12,s.y-Math.sin(s.angle)*12,{n:1,color:T.thrust,angle:s.angle+Math.PI,spread:0.4,minSpeed:60,maxSpeed:140+this.au.rms*120,maxLife:0.3,maxSize:2.2,});}}if(this.keys.has('Space'))this.fire();}if(!s.dead){const%20damp=Math.exp(-CFG.shipDamping*dt);s.vx*=damp;s.vy*=damp;s.x+=s.vx*dt;s.y+=s.vy*dt;wrapEntity(s,this.w,this.h,14);s.cooldown=Math.max(0,s.cooldown-dt);s.invuln=Math.max(0,s.invuln-dt);s.hyperCd=Math.max(0,s.hyperCd-dt);}else%20if(inPlay){s.respawn-=dt;if(s.respawn%3C=0%26%26this.lives%3E0){this.resetShip();for(const%20a%20of%20this.asteroids){const%20d2=dist2(a.x,a.y,s.x,s.y);if(d2%3C150*150){const%20d=Math.max(20,Math.sqrt(d2));a.vx+=((a.x-s.x)/d)*130;a.vy+=((a.y-s.y)/d)*130;}}}}for(const%20k%20in%20this.effects)this.effects[k]=Math.max(0,this.effects[k]-dt);for(const%20a%20of%20this.asteroids){a.x+=a.vx*dt;a.y+=a.vy*dt;a.rot+=a.spin*dt;wrapEntity(a,this.w,this.h,a.r+4);}for(let%20i=this.bullets.length-1;i%3E=0;i--){const%20b=this.bullets[i];b.life-=dt;if(b.life%3C=0){this.bullets.splice(i,1);continue;}b.x+=b.vx*dt;b.y+=b.vy*dt;wrapEntity(b,this.w,this.h,4);}for(let%20i=this.ebullets.length-1;i%3E=0;i--){const%20b=this.ebullets[i];b.life-=dt;if(b.life%3C=0){this.ebullets.splice(i,1);continue;}b.x+=b.vx*dt;b.y+=b.vy*dt;wrapEntity(b,this.w,this.h,4);}for(let%20i=this.ufos.length-1;i%3E=0;i--){const%20u=this.ufos[i];u.phase+=dt*1.7;u.x+=u.dir*u.speed*dt;u.y+=Math.sin(u.phase)*46*dt;if((u.dir%3E0%26%26u.x%3Ethis.w+60)%7C%7C(u.dir%3C0%26%26u.x%3C-60)){this.ufos.splice(i,1);continue;}if(inPlay%26%26!s.dead){u.fire-
=dt;if(u.fire%3C=0){u.fire=clamp(2.1-(this.diff-1)*0.13,0.85,2.1);const%20spread=clamp(0.45-(this.diff-1)*0.035,0.07,0.45);const%20a=Math.atan2(s.y-u.y,s.x-u.x)+rand(-spread,spread);const%20sp=CFG.ebulletSpeed*(0.95+0.06*(this.diff-1));this.ebullets.push({x:u.x,y:u.y+6,vx:Math.cos(a)*sp,vy:Math.sin(a)*sp,life:2.6,r:3,});}}}for(let%20i=this.powerups.length-1;i%3E=0;i--){const%20p=this.powerups[i];p.ttl-=dt;if(p.ttl%3C=0){this.powerups.splice(i,1);continue;}p.phase+=dt*3;if(!s.dead){const%20d2=dist2(p.x,p.y,s.x,s.y);if(d2%3CCFG.magnetRadius*CFG.magnetRadius){const%20d=Math.max(12,Math.sqrt(d2));const%20pull=300*(1-d/CFG.magnetRadius);p.vx+=((s.x-p.x)/d)*pull*dt*4;p.vy+=((s.y-p.y)/d)*pull*dt*4;}}p.vx*=1-0.5*dt;p.vy*=1-0.5*dt;p.x+=p.vx*dt;p.y+=p.vy*dt;wrapEntity(p,this.w,this.h,14);}for(let%20i=this.shocks.length-1;i%3E=0;i--){const%20sh=this.shocks[i];sh.t+=dt;sh.r=(sh.t/sh.life)*sh.max;if(sh.t%3E=sh.life)this.shocks.splice(i,1);}for(let%20i=this.toasts.length-1;i%3E=0;i--){const%20t=this.toasts[i];t.life+=dt;t.y+=t.vy*dt;if(t.life%3E=t.max)this.toasts.splice(i,1);}this.parts.update(dt);this.stars.update(dt,s.dead%3F0:s.vx,s.dead%3F0:s.vy);this.shake=Math.max(0,this.shake-dt*42);if(inPlay){this.driftSpawner(dt);this.ufoLogic(dt);this.collide();}}driftSpawner(dt){this.nextDrift-=dt;const%20minRocks=this.au.live%3F2:3;const%20target=Math.max(minRocks,Math.floor(this.asteroidCap()*0.4));if(this.nextDrift%3C=0%26%26this.asteroids.length%3Ctarget){this.spawnAsteroidEdge(randInt(2,3),this.au.live%3Fthis.au.rms:0.3);this.nextDrift=clamp(5.5-this.diff*0.45,2,5.5)*(this.au.live%3F1.6:1);}}ufoLogic(dt){this.ufoMeter+=dt*(0.25+(this.au.mid*0.8+this.au.treble*1.2)*1.05)*(0.75+0.25*this.diff);const%20maxU=Math.min(3,1+Math.floor((this.diff-1)/2.5));if(this.ufoMeter%3E=14%26%26this.ufos.length%3CmaxU){this.ufoMeter=0;this.spawnUfo();}}collide(){const%20s=this.ship;outer:for(let%20i=this.bullets.length-1;i%3E=0;i--){const%20b=this.bullets[i];for(let%20j=this.asteroids.length-1;j%3E=0;j--){const%20a=this.asteroids[j];if(hit(b,a,b.r,a.r*0.92)){this.bullets.splice(i,1);this.destroyAsteroid(j,{byPlayer:true});continue%20outer;}}for(let%20j=this.ufos.length-1;j%3E=0;j--){const%20u=this.ufos[j];if(hit(b,u,b.r,u.r)){this.bullets.splice(i,1);u.hp--;this.parts.spawn(b.x,b.y,{n:6,color:T.ufo,maxSpeed:120,maxLife:0.3});if(u.hp%3C=0)this.destroyUfo(j);continue%20outer;}}}eouter:for(let%20i=this.ebullets.length-1;i%3E=0;i--){const%20b=this.ebullets[i];for(let%20j=this.asteroids.length-1;j%3E=0;j--){const%20a=this.asteroids[j];if(hit(b,a,b.r,a.r*0.92)){this.ebullets.splice(i,1);this.destroyAsteroid(j,{});continue%20eouter;}}}if(s.dead)return;for(let%20i=this.powerups.length-1;i%3E=0;i--){const%20p=this.powerups[i];if(hit(p,s,p.r+6,10)){this.powerups.splice(i,1);this.applyPowerup(p);}}const%20shielded=this.effects.shield%3E0;for(let%20j=this.asteroids.length-1;j%3E=0;j--){const%20a=this.asteroids[j];if(hit(a,s,a.r*0.9,10)){if(shielded){this.destroyAsteroid(j,{byPlayer:true});this.effects.shield=Math.max(0,this.effects.shield-1.5);const%20d=Math.max(10,Math.hypot(s.x-a.x,s.y-a.y));s.vx+=((s.x-a.x)/d)*160;s.vy+=((s.y-a.y)/d)*160;}else{this.killShip();return;}}}for(let%20i=this.ebullets.length-1;i%3E=0;i--){const%20b=this.ebullets[i];if(hit(b,s,b.r+2,9)){this.ebullets.splice(i,1);if(shielded){this.effects.shield=Math.max(0,this.effects.shield-1);this.parts.spawn(b.x,b.y,{n:8,color:'%2354e8ff',maxSpeed:140,maxLife:0.3});}else{this.killShip();return;}}}for(let%20j=this.ufos.length-1;j%3E=0;j--){const%20u=this.ufos[j];if(hit(u,s,u.r,10)){if(shielded){u.hp-=1;this.effects.shield=Math.max(0,this.effects.shield-2);if(u.hp%3C=0)this.destroyUfo(j);const%20d=Math.max(10,Math.hypot(s.x-u.x,s.y-u.y));s.vx+=((s.x-u.x)/d)*220;s.vy+=((s.y-u.y)/d)*220;}else{this.killShip();return;}}}}loop(now){if(!this.running)return;const%20dt=clamp((now-(this._lastNow%7C%7Cnow))/1000,0,0.05);this._lastNow=now;this.dt=dt;this.updateAudio(now,dt);if(!this.paused)this.update(dt);this.render();this._raf=requestAnimationFrame((n)=%3Ethis.loop(n));}font(size,weight){return%60${weight%20%7C%7C%20600}%20${Math.round(size)}px%20Menlo,%20Consolas,%20%22Courier%20New%22,%20monospace%60;}render(){const%20ctx=this.ctx;const%20now=this._lastNow%7C%7C0;ctx.setTransform(this.dpr,0,0,this.dpr,0,0);ctx.globalCompositeOperation='source-over';ctx.globalAlpha=1;ctx.clearRect(0,0,this.w,this.h);if(this.host.overlay){ctx.fillStyle='rgba(4,7,19,0.9)';ctx.fillRect(0,0,this.w,this.h);}else{const%20g=ctx.createLinearGradient(0,0,0,this.h);g.addColorStop(0,'%2305071a');g.addColorStop(1,%60hsl(${222%20+%20this.au.centroid%20*%2030}%2055%25%20${7%20+%20this.au.rms%20*%203}%25)%60);ctx.fillStyle=g;ctx.fillRect(0,0,this.w,this.h);}let%20sx=0,sy=0;if(this.shake%3E0.5){sx=rand(-1,1)*this.shake*0.4;sy=rand(-1,1)*this.shake*0.4;}ctx.save();ctx.translate(sx,sy);this.stars.draw(ctx,this.au,this.beatFlash);ctx.globalCompositeOperation='lighter';const%20boost=1+this.beatFlash*0.4+this.au.rms*0.25;this.parts.draw(ctx);for(const%20sh%20of%20this.shocks)this.drawShock(ctx,sh);for(const%20p%20of%20this.powerups)this.drawPowerup(ctx,p,now);for(const%20a%20of%20this.asteroids)this.drawAsteroid(ctx,a,boost);for(const%20u%20of%20this.ufos)this.drawUfo(ctx,u,boost);this.drawBullets(ctx);if(this.ship%26%26!this.ship.dead%26%26(this.state==='playing'%7C%7Cthis.state==='gameover')){this.drawShip(ctx,boost,now);}ctx.globalCompositeOperation='source-over';ctx.restore();if(this.state==='title')this.drawTitle(ctx,now);else{this.drawHUD(ctx,now);if(this.state==='gameover')this.drawGameOver(ctx,now);if(this.paused%26%26this.state==='playing')this.drawPaused(ctx);}this.drawToasts(ctx);ctx.globalAlpha=1;}neon(ctx,path,color,w,alpha,boost){const%20b=boost%7C%7C1;ctx.strokeStyle=color;ctx.lineJoin='round';ctx.lineCap='round';ctx.globalAlpha=alpha*0.13*b;ctx.lineWidth=w*5.5*b;ctx.stroke(path);ctx.globalAlpha=alpha*0.3;ctx.lineWidth=w*2.2;ctx.stroke(path);ctx.globalAlpha=alpha;ctx.lineWidth=w;ctx.stroke(path);ctx.globalAlpha=1;}drawShip(ctx,boost,now){const%20s=this.ship;if(s.invuln%3E0%26%26Math.sin(now/45)%3E0%26%26this.state==='playing')return;const%20p=new%20Path2D();const%20c=Math.cos(s.angle),n=Math.sin(s.angle);const%20px=(dx,dy)=%3E[s.x+dx*c-dy*n,s.y+dx*n+dy*c];let[x1,y1]=px(15,0);const[x2,y2]=px(-11,-9.5);const[x3,y3]=px(-6.5,0);const[x4,y4]=px(-11,9.5);p.moveTo(x1,y1);p.lineTo(x2,y2);p.lineTo(x3,y3);p.lineTo(x4,y4);p.closePath();this.neon(ctx,p,T.ship,1.7,0.95,boost);if(s.thrusting%26%26Math.random()%3C0.85){const%20flame=new%20Path2D();const%20len=10+rand(0,7)+this.au.rms*10;const[fx1,fy1]=px(-8,-4.5);const[fx2,fy2]=px(-8-len,0);const[fx3,fy3]=px(-8,4.5);flame.moveTo(fx1,fy1);flame.lineTo(fx2,fy2);flame.lineTo(fx3,fy3);this.neon(ctx,flame,T.thrust,1.4,0.8,boost);}if(this.effects.shield%3E0){const%20ring=new%20Path2D();ring.arc(s.x,s.y,22+Math.sin(now/90)*1.5,0,TAU);const%20a=this.effects.shield%3C2%3F0.35+0.3*Math.sin(now/60):0.6;this.neon(ctx,ring,POWERUPS.shield.color,1.3,a,boost);}}drawAsteroid(ctx,a,boost){const%20p=new%20Path2D();const%20wob=1+this.au.rms*0.05;for(let%20i=0;i%3Ca.verts.length;i++){const%20v=a.verts[i];const%20m=v.m*wob*(1+0.03*Math.sin(a.seed+this._lastNow/300+i*2.1));const%20ang=v.a+a.rot;const%20x=a.x+Math.cos(ang)*a.r*m;const%20y=a.y+Math.sin(ang)*a.r*m;if(i===0)p.moveTo(x,y);else%20p.lineTo(x,y);}p.closePath();const%20light=a.size===3%3F62:a.size===2%3F68:74;this.neon(ctx,p,T.rock(this.au.centroid,light),a.size===1%3F1.4:1.7,0.9,boost);}drawUfo(ctx,u,boost){const%20p=new%20Path2D();p.ellipse(u.x,u.y,17,7.5,0,0,TAU);p.moveTo(u.x-9,u.y-4);p.arc(u.x,u.y-4,9,Math.PI,0);p.moveTo(u.x-17,u.y);p.lineTo(u.x+17,u.y);this.neon(ctx,p,T.ufo,1.6,0.95,boost);if(u.hp%3E1){ctx.fillStyle=T.ufo;ctx.globalAlpha=0.85;for(let%20i=0;i%3Cu.hp;i++)ctx.fillRect(u.x-8+i*6,u.y-18,3.5,3.5);ctx.globalAlpha=1;}}drawPowerup(ctx,p,now){const%20def=POWERUPS[p.type];const%20blink=p.ttl%3C2.5%26%26Math.sin(now/70)%3E0;if(blink)return;const%20bob=Math.sin(p.phase)*2;const%20ring=new%20Path2D();ring.arc(p.x,p.y+bob,p.r,0,TAU);this.neon(ctx,ring,def.color,1.4,0.9);ctx.fillStyle=def.color;ctx.font=this.font(13,800);ctx.textAlign='center';ctx.textBaseline='middle';ctx.globalAlpha=0.95;ctx.fillText(def.glyph,p.x,p.y+bob+0.5);ctx.globalAlpha=1;}drawBullets(ctx){for(const%20b%20of%20this.bullets){const%20p=new%20Path2D();const%20k=6/Math.max(1,Math.hypot(b.vx,b.vy));p.moveTo(b.x-b.vx*k,b.y-b.vy*k);p.lineTo(b.x,b.y);this.neon(ctx,p,T.bullet,2,0.95);}for(const%20b%20of%20this.ebullets){const%20p=new%20Path2D();p.arc(b.x,b.y,b.r,0,TAU);this.neon(ctx,p,T.ebullet,1.6,0.95);}}drawShock(ctx,sh){const%20k=1-sh.t/sh.life;const%20p=new%20Path2D();p.arc(sh.x,sh.y,sh.r,0,TAU);this.neon(ctx,p,T.danger,2.5,k*0.9,1.4);}drawHUD(ctx,now){ctx.textAlign='left';ctx.textBaseline='top';ctx.font=this.font(10);ctx.fillStyle=T.dim;ctx.fillText('SCORE',16,14);ctx.font=this.font(26,700);ctx.fillStyle=T.text;ctx.fillText(pad(this.score,7),16,26);ctx.font=this.font(11);ctx.fillStyle=this.highIsNew%3FT.gold:T.dim;ctx.fillText('HIGH%20%20'+pad(this.high,7),16,58);if(this.combo%3E=2%26%26this.state==='playing'){const%20pulse=1+0.12*Math.sin(now/80);ctx.font=this.font(15*pulse,800);ctx.fillStyle=T.gold;ctx.fillText('%C3%97'+this.combo,16,76);}for(let%20i=0;i%3Cthis.lives;i++){const%20lx=this.w-26-i*24,ly=26;const%20p=new%20Path2D();p.moveTo(lx,ly-9);p.lineTo(lx-6.5,ly+7);p.lineTo(lx,ly+3.5);p.lineTo(lx+6.5,ly+7);p.closePath();this.neon(ctx,p,T.ship,1.3,0.85);}ctx.textAlign='center';ctx.font=this.font(11);ctx.fillStyle=T.dim;ctx.fillText('LVL%20'+this.level,this.w/2,14);const%20bx=18,base=this.h-20;const%20bands=[[this.au.bass,'%2345d7ff'],[this.au.mid,'%238f7bff'],[this.au.treble,'%23ff7bd5'],];for(let%20i=0;i%3C3;i++){const[v,col]=bands[i];const%20bh=3+v*42;ctx.globalAlpha=0.28;ctx.fillStyle=col;ctx.fillRect(bx+i*15,base-45,10,45);ctx.globalAlpha=0.95;ctx.fillRect(bx+i*15,base-bh,10,bh);}if(this.beatFlash%3E0.02){const%20p=new%20Path2D();p.arc(bx+58,base-22,4+this.beatFlash*
9,0,TAU);this.neon(ctx,p,'%2345d7ff',1.4,this.beatFlash*0.9);}ctx.globalAlpha=0.8;ctx.textAlign='left';ctx.font=this.font(10);ctx.fillStyle=this.au.live%3FT.text:T.dim;ctx.fillText(this.audioLabel(),bx,base+6);ctx.globalAlpha=1;let%20cx=this.w-16;const%20chips=[['rapid'],['triple'],['shield']];for(const[key]of%20chips){const%20tLeft=this.effects[key];if(tLeft%3C=0)continue;const%20def=POWERUPS[key];const%20label=def.glyph+'%20'+Math.ceil(tLeft);ctx.font=this.font(12,700);const%20wCh=ctx.measureText(label).width+18;cx-=wCh+8;ctx.globalAlpha=tLeft%3C2%3F0.45+0.4*Math.sin(now/70):0.85;ctx.strokeStyle=def.color;ctx.lineWidth=1.2;ctx.strokeRect(cx,this.h-44,wCh,22);ctx.fillStyle=def.color;ctx.textAlign='left';ctx.textBaseline='middle';ctx.fillText(label,cx+9,this.h-33);ctx.globalAlpha=1;}ctx.textBaseline='top';}drawToasts(ctx){ctx.textAlign='center';ctx.textBaseline='middle';for(const%20t%20of%20this.toasts){const%20k=1-t.life/t.max;ctx.globalAlpha=clamp(k*1.4,0,1);ctx.font=this.font(t.size,800);ctx.fillStyle=t.color;ctx.fillText(t.text,t.x,t.y);}ctx.globalAlpha=1;}eqBars(ctx,cx,cy,width,now){const%20n=26;const%20bw=width/n;ctx.save();ctx.globalCompositeOperation='lighter';for(let%20i=0;i%3Cn;i++){const%20t=i/(n-1);let%20v;if(t%3C0.5)v=lerp(this.au.bass,this.au.mid,t*2);else%20v=lerp(this.au.mid,this.au.treble,(t-0.5)*2);v=clamp(v*(0.75+0.3*Math.sin(now/300+i*1.7)),0.02,1);const%20bh=4+v*58;const%20hue=190+t*110;ctx.fillStyle=%60hsla(${hue}%2095%25%2065%25%20/%20${0.16%20+%20v%20*%200.3})%60;ctx.fillRect(cx-width/2+i*bw,cy-bh,bw*0.62,bh*2);}ctx.restore();}drawTitle(ctx,now){const%20cx=this.w/2;this.eqBars(ctx,cx,this.h*0.27,Math.min(600,this.w*0.75),now);ctx.textAlign='center';ctx.textBaseline='middle';try{ctx.letterSpacing='6px';}catch(e){}ctx.save();ctx.shadowColor=T.ship;ctx.shadowBlur=22+this.beatFlash*26;ctx.font=this.font(clamp(this.w*0.055,30,58),800);ctx.fillStyle='%23d9fbff';ctx.fillText('BROWSETEROIDS',cx,this.h*0.27);ctx.restore();try{ctx.letterSpacing='3px';}catch(e){}ctx.font=this.font(12);ctx.fillStyle=T.dim;ctx.fillText('A%20U%20D%20I%20O%20%E2%80%94%20R%20E%20A%20C%20T%20I%20V%20E%20%20%20A%20S%20T%20E%20R%20O%20I%20D%20S',cx,this.h*0.27+44);try{ctx.letterSpacing='0px';}catch(e){}const%20live=this.au.live;ctx.font=this.font(13,700);ctx.fillStyle=live%3F'%237dffca':T.dim;const%20dot=live%3F'%E2%97%8F%20':'%E2%97%8B%20';ctx.fillText(dot+this.audioLabel(),cx,this.h*0.42);ctx.font=this.font(11);ctx.fillStyle=T.dim;ctx.fillText(live%3F'the%20beat%20drops%20the%20rocks%20%E2%80%94%20play%20something%20loud':'no%20signal%20%E2%80%94%20rocks%20will%20drift%20on%20their%20own%20(M%20to%20change%20source)',cx,this.h*0.42+20);if(this.high%3E0){ctx.font=this.font(13,700);ctx.fillStyle=T.gold;ctx.fillText('HIGH%20SCORE%20%20'+pad(this.high,7),cx,this.h*0.52);}ctx.font=this.font(12);ctx.fillStyle=T.text;const%20lines=['%E2%86%90%20%E2%86%92%20/%20A%20D%20%20%20rotate%20%20%20%20%20%20%20%20%E2%86%91%20/%20W%20%20%20thrust','SPACE%20%20fire%20%20%20%20%20%20%20%20SHIFT%20%20hyperspace','P%20%20pause%20%20%20%20%20%20%20%20M%20%20audio%20source%20%20%20%20%20%20%20%20ESC%20%20quit',];for(let%20i=0;i%3Clines.length;i++){ctx.globalAlpha=0.75;ctx.fillText(lines[i],cx,this.h*0.6+i*22);}ctx.globalAlpha=1;ctx.font=this.font(15,800);ctx.fillStyle=T.ship;ctx.globalAlpha=0.55+0.45*Math.sin(now/260);ctx.fillText('PRESS%20%20ENTER%20%20TO%20%20LAUNCH',cx,this.h*0.78);ctx.globalAlpha=1;ctx.font=this.font(10);ctx.fillStyle='rgba(150,215,255,0.4)';ctx.fillText('v'+VERSION+'%20%E2%80%94%20powerups%20drop%20from%20the%20rocks%20%C2%B7%20it%20gets%20harder%20the%20longer%20you%20last',cx,this.h-18);}drawGameOver(ctx,now){ctx.fillStyle='rgba(4,7,19,0.55)';ctx.fillRect(0,0,this.w,this.h);const%20cx=this.w/2;ctx.textAlign='center';ctx.textBaseline='middle';ctx.save();ctx.shadowColor=T.danger;ctx.shadowBlur=26;ctx.font=this.font(clamp(this.w*0.05,28,50),800);ctx.fillStyle='%23ffd9e2';ctx.fillText('GAME%20OVER',cx,this.h*0.34);ctx.restore();ctx.font=this.font(18,700);ctx.fillStyle=T.text;ctx.fillText('SCORE%20%20'+pad(this.score,7),cx,this.h*0.46);if(this.highIsNew%26%26this.score%3E0){ctx.font=this.font(14,800);ctx.fillStyle=T.gold;ctx.globalAlpha=0.6+0.4*Math.sin(now/180);ctx.fillText('%E2%98%85%20%20NEW%20HIGH%20SCORE%20%20%E2%98%85',cx,this.h*0.52);ctx.globalAlpha=1;}else{ctx.font=this.font(12);ctx.fillStyle=T.dim;ctx.fillText('HIGH%20%20'+pad(this.high,7),cx,this.h*0.52);}ctx.font=this.font(13);ctx.fillStyle=T.text;ctx.globalAlpha=0.55+0.45*Math.sin(now/260);ctx.fillText('ENTER%20%E2%80%94%20fly%20again%20%20%20%20%20%20%20%20ESC%20%E2%80%94%20menu',cx,this.h*0.62);ctx.globalAlpha=1;}drawPaused(ctx){ctx.fillStyle='rgba(4,7,19,0.5)';ctx.fillRect(0,0,this.w,this.h);ctx.textAlign='center';ctx.textBaseline='middle';ctx.font=this.font(30,800);ctx.fillStyle=T.text;ctx.fillText('PAUSED',this.w/2,this.h*0.45);ctx.font=this.font(12);ctx.fillStyle=T.dim;ctx.fillText('P%20%E2%80%94%20resume%20%20%20%20%20%20%20%20ESC%20%E2%80%94%20menu',this.w/2,this.h*0.45+34);}}function%20mount(host){if(!host%7C%7C!host.canvas)throw%20new%20Error('Browseteroids.mount:%20host.canvas%20is%20required');const%20game=new%20Game(host);const%20handle={stop(){game.destroy();},get%20running(){return%20game.running;},game,};if(host.debug){const%20dbg={version:VERSION,state(){const%20g=game;return{state:g.state,paused:g.paused,score:g.score,high:g.high,lives:g.lives,combo:g.combo,level:g.level,diff:+g.diff.toFixed(2),asteroids:g.asteroids.length,ufos:g.ufos.length,bullets:g.bullets.length,ebullets:g.ebullets.length,powerups:g.powerups.map((p)=%3Ep.type),effects:{shield:+g.effects.shield.toFixed(2),triple:+g.effects.triple.toFixed(2),rapid:+g.effects.rapid.toFixed(2)},shipAngle:g.ship%3F+g.ship.angle.toFixed(3):0,shipSpeed:g.ship%3FMath.round(Math.hypot(g.ship.vx,g.ship.vy)):0,shipDead:g.ship%3Fg.ship.dead:true,audioLive:g.au.live,au:{bass:+g.au.bass.toFixed(3),mid:+g.au.mid.toFixed(3),treble:+g.au.treble.toFixed(3),rms:+g.au.rms.toFixed(3)},stats:Object.assign({},g.stats),sourceLabel:g.audioLabel(),w:g.w,h:g.h,};},pushFrame(f){game._injQ.push(Object.assign({bass:0,mid:0,treble:0,rms:0,centroid:0.5},f));},start(){if(game.state!=='playing')game.startRun();},spawnAsteroid(size,x,y){game.asteroids.push(game.makeAsteroid(x!=null%3Fx:game.w*0.25,y!=null%3Fy:game.h*0.25,34,22,size%7C%7C2));},destroyFirst(){if(game.asteroids.length)game.destroyAsteroid(0,{byPlayer:true});return%20game.score;},dropPowerup(type,x,y){const%20s=game.ship;game.powerups.push({x:x!=null%3Fx:s.x,y:y!=null%3Fy:s.y,vx:0,vy:0,type:type%7C%7C'shield',ttl:9,phase:0,r:13,});},forceUfo(){game.spawnUfo();},setLives(n){game.lives=n;},killShip(){game.ship.invuln=0;game.effects.shield=0;game.killShip();},addScore(n){game.addScore(n,null,null,true);},saveHigh(){game.saveHigh();},};global.__BT=dbg;}return%20handle;}global.Browseteroids={VERSION,mount,createAnalyserAdapter};})(typeof%20window!=='undefined'%3Fwindow:this);;(()=%3E{'use%20strict';if(window.__BT_BM){try{window.__BT_BM.teardown();}catch(e){}return;}if(!window.Browseteroids)return;let%20DEBUG=false;try{DEBUG=localStorage.getItem('bt_debug')==='1';}catch(e){}const%20root=document.createElement('div');root.id='__browseteroids_bm';root.style.cssText='position:fixed;inset:0;z-index:2147483647;margin:0;padding:0;border:0;background:transparent;pointer-events:auto;cursor:default;';root.tabIndex=-1;const%20canvas=document.createElement('canvas');canvas.style.cssText='position:absolute;inset:0;width:100%25;height:100%25;display:block;';root.appendChild(canvas);(document.documentElement%7C%7Cdocument.body).appendChild(root);root.addEventListener('mousedown',()=%3E{try{root.focus();}catch(e){}});try{root.focus();}catch(e){}let%20mode='none';let%20userChose=false;let%20mic=null;let%20mediaMix=null,mediaAdapter=null,mediaScan=null,autoTimer=null;function%20mediaRegistry(){let%20R=window.__BT_MEDIA;if(!R)R=window.__BT_MEDIA={ctx:null,hooked:new%20Map()};return%20R;}function%20taintSafe(el){const%20src=el.currentSrc%7C%7Cel.src%7C%7C'';if(!src)return!!el.srcObject;if(src.startsWith('blob:')%7C%7Csrc.startsWith('data:'))return%20true;try{if(new%20URL(src,location.href).origin===location.origin)return%20true;}catch(e){}return!!el.crossOrigin;}function%20findMedia(){let%20els;try{els=Array.from(document.querySelectorAll('audio,%20video'));}catch(e){return[];}return%20els.filter((el)=%3Eel.readyState%3E=2%26%26!el.ended%26%26taintSafe(el));}function%20startMedia(){const%20els=findMedia();if(!els.length)return%20false;const%20R=mediaRegistry();try{if(!R.ctx)R.ctx=new%20AudioContext();if(!mediaMix)mediaMix=R.ctx.createGain();}catch(e){return%20false;}let%20ok=false;for(const%20el%20of%20els){let%20node=R.hooked.get(el);if(!node){try{node=R.ctx.createMediaElementSource(el);node.connect(R.ctx.destination);R.hooked.set(el,node);}catch(e){continue;}}try{node.connect(mediaMix);ok=true;}catch(e){}}if(!ok)return%20false;if(!mediaAdapter)mediaAdapter=Browseteroids.createAnalyserAdapter(R.ctx,mediaMix);R.ctx.resume().catch(()=%3E{});if(!mediaScan){mediaScan=setInterval(()=%3E{if(mode==='media')startMedia();},2500);}return%20true;}function%20stopMedia(){if(mediaScan){clearInterval(mediaScan);mediaScan=null;}if(mediaAdapter){try{mediaAdapter.destroy();}catch(e){}mediaAdapter=null;}const%20R=window.__BT_MEDIA;if(mediaMix%26%26R){R.hooked.forEach((n)=%3E{try{n.disconnect(mediaMix);}catch(e){}});}mediaMix=null;}async%20function%20startMic(){if(mic)return%20true;try{const%20stream=await%20navigator.mediaDevices.getUserMedia({audio:{echoCancellation:false,noiseSuppression:false,autoGainControl:false},});const%20ctx=new%20AudioContext();const%20adapter=Browseteroids.createAnalyserAdapter(ctx,ctx.createMediaStreamSource(stream));try{await%20ctx.resume();}catch(e){}mic={ctx,adapter,stream};return%20true;}catch(e){return%20false;}}function%20stopMic(){if(!mic)return;try{mic.adapter.destroy();}catch(e){}try{mic.stream.getTracks().forEach((t)=%3Et.stop());}catch(e){}try{mic.ctx.close();}
catch(e){}mic=null;}function%20resumeContexts(){const%20R=window.__BT_MEDIA;if(R%26%26R.ctx%26%26R.ctx.state==='suspended')R.ctx.resume().catch(()=%3E{});if(mic%26%26mic.ctx%26%26mic.ctx.state==='suspended')mic.ctx.resume().catch(()=%3E{});}window.addEventListener('keydown',resumeContexts,true);const%20audio={getFrame(){if(mode==='media')return%20mediaAdapter%3FmediaAdapter.getFrame():null;if(mode==='mic'%26%26mic)return%20mic.adapter.getFrame();return%20null;},label(){if(mode==='media')return'PAGE%20AUDIO';if(mode==='mic')return'MICROPHONE';return%20findMedia().length%3F'AUDIO%20OFF%20%E2%80%94%20M%20FOR%20SOURCES':'AUDIO%20OFF%20%E2%80%94%20M%20FOR%20MIC';},};async%20function%20cycleSource(){userChose=true;const%20order=[];if(mode==='media'%7C%7CfindMedia().length)order.push('media');order.push('mic','none');const%20next=order[(order.indexOf(mode)+1)%25order.length];if(next==='mic'){const%20ok=await%20startMic();if(mode==='media')stopMedia();mode=ok%3F'mic':'none';}else%20if(next==='media'){if(mode==='mic')stopMic();mode=startMedia()%3F'media':'none';}else{if(mode==='mic')stopMic();if(mode==='media')stopMedia();mode=next;}}if(startMedia())mode='media';else{let%20tries=0;autoTimer=setInterval(()=%3E{if(userChose%7C%7Cmode!=='none'%7C%7C++tries%3E8){clearInterval(autoTimer);autoTimer=null;return;}if(startMedia())mode='media';},1200);}const%20storage={get(){try{return(parseInt(localStorage.getItem('bt_highscore'),10)%7C0)%7C%7C0;}catch(e){return%200;}},set(v){try{localStorage.setItem('bt_highscore',String(v%7C0));}catch(e){}},};let%20handle=null;function%20teardown(){if(!window.__BT_BM)return;try{delete%20window.__BT_BM;}catch(e){}try{if(handle)handle.stop();}catch(e){}try{root.remove();}catch(e){}stopMic();stopMedia();if(autoTimer){clearInterval(autoTimer);autoTimer=null;}window.removeEventListener('keydown',resumeContexts,true);try{delete%20window.__BT;}catch(e){}}handle=Browseteroids.mount({canvas,overlay:true,debug:DEBUG,storage,audio,cycleSource,onQuit(){teardown();},});window.__BT_BM={teardown};})();;void%200;