characterglitch/my-heart-is-a-hexadecimal-code-waiting-to-be-corrupted.html at main · willbearfruits/characterglitch · GitHub

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,viewport-fit=cover">
<title>my heart is a hexadecimal code waiting to be corrupted</title>
<style>
*{margin:0;padding:0}
body{background:#0a0406;overflow:hidden;touch-action:none;cursor:none}
canvas{display:block}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script>
const cv=document.getElementById('c');
const ctx=cv.getContext('2d');
const CELL=10;
const PCELL=18; // poetry font size
let W,H,cols,rows;
let t=0,mx=0.5,my=0.5,pmx=0.5,pmy=0.5;
let corruption=0;
let shake={x:0,y:0};
let trail,trailAge,trailChar,trailIsPo,localCorr,glow;
let playTime=0,beatClock=0,beatPeriod=1.15,beatIntensity=1,beatDropped=false;
let heartMinC=0,heartMaxC=0,heartMinR=0,heartMaxR=0;
let frameParity=0;
let sortShift;
let scaffoldCanvas,scaffoldCtx;

const AB=['\u0300','\u0301','\u0302','\u0303','\u0307','\u0308','\u030A','\u030C','\u0311','\u0310'];
const BL=['\u0323','\u0324','\u0325','\u0330','\u0331','\u0332','\u0347','\u0348'];
const ST=['\u0334','\u0335','\u0336','\u0338'];
const HX='0123456789ABCDEF';

const POEMS=[
  "my heart is a hexadecimal code waiting to be corrupted",
  "every beat overwrites the last",
  "you are the buffer overflow i never caught",
  "corrupted sector chest left of center",
  "memory leak in the organ that remembers everything",
  "she exists in read only memory",
  "the stack trace leads back to you",
  "null pointer to where you used to be",
  "still beating still beating still beating",
  "garbage collection will not free this",
  "unhandled exception still alive",
  "fatal error heart not found",
  "orphaned process still listening",
  "checksum mismatch between what i feel and what i show",
];

const HS=1.35;
const STAGE_NAMES=['stable','irregular','infected','failing','corrupted'];

function hTest(fx,fy){
  const nx=(fx-0.5)*60/HS,ny=(0.44-fy)*60/HS;
  const px=nx/16,py=ny/13;
  const imp=(px*px+py*py-1);
  return imp*imp*imp-px*px*py*py*py;
}

function getDev(){
  const p=Math.min(1,playTime/165);
  const stage=p<0.16?0:p<0.36?1:p<0.58?2:p<0.8?3:4;
  return{
    p,stage,name:STAGE_NAMES[stage],
    jitter:0.006+p*0.095,
    accel:p*0.09,
    weakChance:Math.max(0,p-0.18)*0.7,
    dropChance:Math.max(0,p-0.6)*0.33,
    glitchChance:0.08+p*0.78,
    ambientCorruption:p*0.54,
    sensorNoise:p*0.65,
    turbulence:p*0.9,
    escapeBoost:p*1.5,
    rainBoost:p*1.4,
    voidness:Math.max(0,p-0.45)*0.4,
    blueShift:Math.floor(Math.max(0,p-0.28)*120),
    outlineWarp:p*0.18,
    glowSpread:1+p*1.3
  };
}
function scheduleBeat(dev){
  beatPeriod=Math.max(0.84,1.15-dev.accel+(Math.random()-0.5)*dev.jitter);
  beatDropped=Math.random()<dev.dropChance;
  beatIntensity=beatDropped?0.08:(Math.random()<dev.weakChance?0.58:1);
}
function beatVal(phase,intensity=1){
  if(phase<0.122)return Math.sin(phase/0.122*Math.PI)*0.12*intensity;
  if(phase>0.157&&phase<0.191)return-0.08*intensity;
  if(phase>=0.191&&phase<0.226)return(-0.08+1.1*((phase-0.191)/0.035))*intensity;
  if(phase>=0.226&&phase<0.278)return(1.02-1.2*((phase-0.226)/0.052))*intensity;
  if(phase>0.348&&phase<0.504)return Math.sin((phase-0.348)/0.156*Math.PI)*0.2*intensity;
  return 0;
}
function sqz(phase,intensity=1){
  return(phase>0.191&&phase<0.452)?Math.sin((phase-0.191)/0.261*Math.PI)*0.16*intensity:0;
}

// escaped fragments - poetry chars that escape the heart
let escaped=[];

// hex rain
let rain=[];

// audio
let actx,mGain,hBus,airBus,masterComp,masterDrive,audioReady=false;
let rumbleOsc,rumbleGain,flutterOsc,flutterGain;
function mkCurve(amount=80){
  const n=2048,curve=new Float32Array(n);
  for(let i=0;i<n;i++){
    const x=i*2/n-1;
    curve[i]=Math.tanh(x*(1+amount*0.03));
  }
  return curve;
}
function initAudio(){
  actx=new(window.AudioContext||window.webkitAudioContext)();
  mGain=actx.createGain();mGain.gain.value=0.62;
  masterComp=actx.createDynamicsCompressor();
  masterComp.threshold.value=-20;
  masterComp.knee.value=18;
  masterComp.ratio.value=4.5;
  masterComp.attack.value=0.004;
  masterComp.release.value=0.18;
  masterDrive=actx.createWaveShaper();
  masterDrive.curve=mkCurve(52);
  masterDrive.oversample='4x';
  hBus=actx.createGain();hBus.gain.value=0.94;
  airBus=actx.createGain();airBus.gain.value=0.18;
  hBus.connect(masterDrive);airBus.connect(masterDrive);
  masterDrive.connect(masterComp);masterComp.connect(mGain);mGain.connect(actx.destination);

  rumbleOsc=actx.createOscillator();rumbleOsc.type='sine';rumbleOsc.frequency.value=28;
  const rumbleLP=actx.createBiquadFilter();rumbleLP.type='lowpass';rumbleLP.frequency.value=58;
  rumbleGain=actx.createGain();rumbleGain.gain.value=0.018;
  rumbleOsc.connect(rumbleLP);rumbleLP.connect(rumbleGain);rumbleGain.connect(hBus);rumbleOsc.start();

  flutterOsc=actx.createOscillator();flutterOsc.type='sine';flutterOsc.frequency.value=0.11;
  flutterGain=actx.createGain();flutterGain.gain.value=8;
  flutterOsc.connect(flutterGain);flutterGain.connect(rumbleOsc.frequency);flutterOsc.start();
  audioReady=true;
}
function bootAudio(){
  if(audioReady)return;
  initAudio();
  playTime=0;
  beatClock=beatPeriod;
  beatIntensity=1;
  beatDropped=false;
  scheduleBeat(getDev());
}
function thump(at,f0,f1,amp,len,grit){
  const body=actx.createOscillator();body.type='triangle';
  body.frequency.setValueAtTime(f0,at);
  body.frequency.exponentialRampToValueAtTime(f1,at+len);
  const bodyGain=actx.createGain();
  bodyGain.gain.setValueAtTime(0.0001,at);
  bodyGain.gain.exponentialRampToValueAtTime(amp,at+0.012);
  bodyGain.gain.exponentialRampToValueAtTime(0.001,at+len);
  const bodyLP=actx.createBiquadFilter();bodyLP.type='lowpass';
  bodyLP.frequency.setValueAtTime(170+grit*80,at);
  bodyLP.Q.value=0.8+grit*2;
  body.connect(bodyLP);bodyLP.connect(bodyGain);bodyGain.connect(hBus);
  body.start(at);body.stop(at+len+0.04);

  const sub=actx.createOscillator();sub.type='sine';
  sub.frequency.setValueAtTime(f0*0.52,at);
  sub.frequency.exponentialRampToValueAtTime(Math.max(18,f1*0.58),at+len*1.15);
  const subGain=actx.createGain();
  subGain.gain.setValueAtTime(0.0001,at);
  subGain.gain.exponentialRampToValueAtTime(amp*0.9,at+0.018);
  subGain.gain.exponentialRampToValueAtTime(0.001,at+len*1.2);
  sub.connect(subGain);subGain.connect(hBus);
  sub.start(at);sub.stop(at+len*1.25);

  const click=actx.createOscillator();click.type='square';
  click.frequency.setValueAtTime(950+grit*900,at);
  click.frequency.exponentialRampToValueAtTime(180+grit*160,at+0.016);
  const clickHP=actx.createBiquadFilter();clickHP.type='highpass';clickHP.frequency.value=420;
  const clickGain=actx.createGain();
  clickGain.gain.setValueAtTime(0.0001,at);
  clickGain.gain.linearRampToValueAtTime(0.05+grit*0.045,at+0.002);
  clickGain.gain.exponentialRampToValueAtTime(0.001,at+0.02);
  click.connect(clickHP);clickHP.connect(clickGain);clickGain.connect(airBus);
  click.start(at);click.stop(at+0.025);

  const bl=actx.sampleRate*Math.max(0.03,len*0.7);
  const bf=actx.createBuffer(1,bl,actx.sampleRate),bd=bf.getChannelData(0);
  for(let i=0;i<bl;i++){
    const env=Math.exp(-i/bl*(10-grit*3));
    bd[i]=(Math.random()*2-1)*env;
  }
  const ns=actx.createBufferSource();ns.buffer=bf;
  const nf=actx.createBiquadFilter();nf.type='bandpass';
  nf.frequency.value=85+grit*180;
  nf.Q.value=0.7+grit*2.2;
  const ng=actx.createGain();
  ng.gain.setValueAtTime(0.12+grit*0.08,at);
  ng.gain.exponentialRampToValueAtTime(0.001,at+len*0.8);
  ns.connect(nf);nf.connect(ng);ng.connect(hBus);ns.start(at);
}
function corruptionBurst(at,cr){
  if(cr<0.18)return;
  const burst=actx.createOscillator();burst.type=cr>0.55?'square':'sawtooth';
  burst.frequency.setValueAtTime(210+cr*420,at);
  burst.frequency.exponentialRampToValueAtTime(62+cr*140,at+0.08+cr*0.06);
  const burstGain=actx.createGain();
  burstGain.gain.setValueAtTime(0.0001,at);
  burstGain.gain.linearRampToValueAtTime(0.02+cr*0.045,at+0.006);
  burstGain.gain.exponentialRampToValueAtTime(0.001,at+0.09+cr*0.07);
  const burstHP=actx.createBiquadFilter();burstHP.type='bandpass';
  burstHP.frequency.value=480+cr*1200;
  burstHP.Q.value=1.5+cr*4;
  burst.connect(burstHP);burstHP.connect(burstGain);burstGain.connect(airBus);
  burst.start(at);burst.stop(at+0.12+cr*0.08);
}
function playBeat(dev=getDev()){
  if(!audioReady)return;
  const n=actx.currentTime,cr=corruption;
  const heartRate=1+cr*0.12+dev.accel*0.45;
  rumbleGain.gain.cancelScheduledValues(n);
  rumbleGain.gain.setValueAtTime(0.018+cr*0.01+dev.p*0.008,n);
  rumbleGain.gain.linearRampToValueAtTime(0.055+cr*0.03+dev.p*0.018,n+0.03);
  rumbleGain.gain.exponentialRampToValueAtTime(0.017+cr*0.012+dev.p*0.005,n+0.34);
  if(!beatDropped){
    thump(n,58+cr*5-dev.p*4,31+cr*2-dev.p*2,0.5*beatIntensity+cr*0.14,0.16/heartRate,cr*0.55+dev.p*0.18);
    thump(n+0.17/heartRate,76+cr*12+dev.p*8,39+cr*5+dev.p*4,0.34*beatIntensity+cr*0.1,0.11/heartRate,0.2+cr*0.9+dev.p*0.25);
  }else{
    thump(n,48,24,0.18,0.09,0.2+dev.p*0.2);
  }
  corruptionBurst(n+0.19/heartRate,cr+dev.p*0.25);
  if(cr>0.5||dev.stage>=2)corruptionBurst(n+0.27/heartRate,cr*0.8+dev.p*0.2);
}

// agents
let NA=1800;
let ax,ay,ah,aType,aPoem,aPi,aEn;
const SD=5,SA=0.5,TN=0.4;

function initA(){
  ax=new Float32Array(NA);ay=new Float32Array(NA);ah=new Float32Array(NA);
  aType=new Uint8Array(NA);aPoem=new Int16Array(NA);aPi=new Int16Array(NA);
  aEn=new Float32Array(NA); // energy for escape
  for(let i=0;i<NA;i++)rsp(i,true);
}

function rsp(i,init){
  const a=Math.random()*Math.PI*2;
  const hx=16*Math.pow(Math.sin(a),3);
  const hy=13*Math.cos(a)-5*Math.cos(2*a)-2*Math.cos(3*a)-Math.cos(4*a);
  const inward=0.08+Math.random()*0.88;
  ax[i]=(0.5+(hx/60*HS)*inward)*cols;
  ay[i]=(0.44-(hy/60*HS)*inward)*rows;
  ah[i]=Math.random()*Math.PI*2;
  aEn[i]=0;
  if(Math.random()<0.18){
    aType[i]=1;aPoem[i]=Math.floor(Math.random()*POEMS.length);
    aPi[i]=init?Math.floor(Math.random()*POEMS[aPoem[i]].length):0;
  }else{aType[i]=0;aPoem[i]=-1;aPi[i]=0;}
}

function senseT(x,y,h,off){
  const sx=Math.floor(x+Math.cos(h+off)*SD),sy=Math.floor(y+Math.sin(h+off)*SD);
  if(sx<0||sx>=cols||sy<0||sy>=rows)return 0;
  return trail[sy*cols+sx];
}

function stepA(dev=getDev(),s=0){
  const CX=0.5*cols,CY=0.44*rows;
  for(let i=0;i<NA;i++){
    const sL=senseT(ax[i],ay[i],ah[i],-SA);
    const sC=senseT(ax[i],ay[i],ah[i],0);
    const sR=senseT(ax[i],ay[i],ah[i],SA);
    if(sC>=sL&&sC>=sR)ah[i]+=(Math.random()-0.5)*(0.15+dev.sensorNoise*0.24);
    else if(sL>sR)ah[i]-=TN+Math.random()*(0.1+dev.sensorNoise*0.2);
    else if(sR>sL)ah[i]+=TN+Math.random()*(0.1+dev.sensorNoise*0.2);
    else ah[i]+=(Math.random()-0.5)*TN*(2+dev.sensorNoise*2.2);

    // heartbeat turbulence
    if(s>0.05)ah[i]+=(Math.random()-0.5)*s*(1.5+dev.turbulence*2.4);

    // boundary
    const nfx=(ax[i]+Math.cos(ah[i])*3)/cols;
    const nfy=(ay[i]+Math.sin(ah[i])*3)/rows;
    const nsdf=hTest(nfx,nfy);
    if(nsdf>-0.01+s*(0.02+dev.outlineWarp*0.08)){
      const dx=CX-ax[i],dy=CY-ay[i];
      ah[i]=Math.atan2(dy,dx)+(Math.random()-0.5)*(1.0+dev.sensorNoise*1.5);
      aEn[i]+=0.3+dev.escapeBoost*0.12; // energy builds at boundary
    }

    const spd=0.8+s*(2.0+dev.turbulence*1.5)+dev.p*0.12;
    ax[i]+=Math.cos(ah[i])*spd;ay[i]+=Math.sin(ah[i])*spd;

    const cfx=ax[i]/cols,cfy=ay[i]/rows;
    const csdf=hTest(cfx,cfy);

    // escape mechanic: high energy agents on beat can break through
    if(csdf>0){
      if(aEn[i]>2-dev.escapeBoost*0.55&&s>0.04){
        // ESCAPE! spawn floating fragment
        const ch=aType[i]===1&&aPoem[i]>=0?
          POEMS[aPoem[i]][aPi[i]%POEMS[aPoem[i]].length]:
          HX[Math.floor(Math.random()*16)];
        escaped.push({
          x:cfx*W,y:cfy*H,
          vx:Math.cos(ah[i])*(1.5+dev.escapeBoost*0.8),vy:Math.sin(ah[i])*(1.5+dev.escapeBoost*0.9),
          ch:ch,life:1,isPo:aType[i]===1,
          size:aType[i]===1?PCELL+4+dev.stage:CELL+Math.floor(dev.stage*0.5)
        });
      }
      rsp(i,false);continue;
    }

    aEn[i]*=0.98;

    const gc=Math.floor(ax[i]),gr=Math.floor(ay[i]);
    if(gc<0||gc>=cols||gr<0||gr>=rows){rsp(i,false);continue;}
    const idx=gr*cols+gc;
    trail[idx]+=0.65;trailAge[idx]=0;

    if(aType[i]===1&&aPoem[i]>=0){
      const p=POEMS[aPoem[i]];
      const cc=p.charCodeAt(aPi[i]%p.length);
      trailChar[idx]=cc;
      trailIsPo[idx]=1;
      aPi[i]++;
    }else{
      trailChar[idx]=HX.charCodeAt(Math.floor(Math.random()*16));
      trailIsPo[idx]=0;
    }
  }
}

let pw=-1;

function initRain(){
  rain=[];
  for(let i=0;i<Math.floor(cols*0.12);i++){
    rain.push({x:Math.floor(Math.random()*cols),y:Math.random()*rows,
      speed:0.12+Math.random()*0.3,len:3+Math.floor(Math.random()*8),
      chars:Array.from({length:12},()=>HX[Math.floor(Math.random()*16)])});
  }
}

function buildScaffold(){
  scaffoldCanvas=document.createElement('canvas');
  scaffoldCanvas.width=W;
  scaffoldCanvas.height=H;
  scaffoldCtx=scaffoldCanvas.getContext('2d');
  scaffoldCtx.textBaseline='top';
  scaffoldCtx.font=CELL+'px Courier New';
  const cw=CELL*0.56;
  for(let r=heartMinR;r<heartMaxR;r++){
    for(let c=heartMinC;c<heartMaxC;c++){
      const fx=c/cols,fy=r/rows;
      const sdf=hTest(fx,fy);
      if(sdf>0.055)continue;
      const shell=Math.max(0,1-Math.max(0,sdf+0.14)/0.195);
      if(shell<0.08)continue;
      if(shell<0.34&&((c+r)&1))continue;
      const seed=(c*19+r*23)%11;
      let ch=seed<2?HX[(c+r)%16]:(seed<6?'·':':');
      const base=10+shell*18;
      const rr=Math.floor(base);
      const gg=Math.floor(2+shell*2);
      const bb=Math.floor(6+shell*8);
      scaffoldCtx.fillStyle=`rgb(${rr},${gg},${bb})`;
      scaffoldCtx.fillText(ch,c*cw,r*CELL);
    }
  }
}

function resize(){
  W=window.innerWidth;H=window.innerHeight;cv.width=W;cv.height=H;
  cols=Math.floor(W/(CELL*0.56));rows=Math.floor(H/CELL);
  heartMinC=Math.max(1,Math.floor(cols*0.12));
  heartMaxC=Math.min(cols-1,Math.ceil(cols*0.88));
  heartMinR=Math.max(1,Math.floor(rows*0.08));
  heartMaxR=Math.min(rows-1,Math.ceil(rows*0.82));
  NA=Math.max(700,Math.min(1400,Math.floor(cols*rows*0.032)));
  const sz=cols*rows;
  trail=new Float32Array(sz);trailAge=new Float32Array(sz);
  trailChar=new Uint16Array(sz);trailIsPo=new Uint8Array(sz);
  localCorr=new Float32Array(sz);glow=new Float32Array(sz);
  sortShift=new Int16Array(rows);
  ctx.textBaseline='top';buildScaffold();initA();initRain();
}

function frame(){
  const dt=0.016;
  frameParity^=1;
  t+=dt;
  if(audioReady)playTime+=dt;
  const dev=getDev();
  pmx+=(mx-pmx)*0.05;pmy+=(my-pmy)*0.05;

  beatClock+=dt;
  while(beatClock>=beatPeriod){
    beatClock-=beatPeriod;
    scheduleBeat(dev);
    pw=0;playBeat(dev);
    shake.x=(Math.random()-0.5)*(3+corruption*6+dev.stage*2.4);
    shake.y=(Math.random()-0.5)*(2+corruption*4+dev.stage*1.6);
  }
  const cyc=beatClock/beatPeriod;
  shake.x*=0.84;shake.y*=0.84;
  if(pw>=0)pw+=0.022;if(pw>1.5)pw=-1;

  const msdf=hTest(pmx,pmy);
  if(msdf<0.05)corruption=Math.min(0.95,corruption+0.00025+dev.p*0.00022);
  corruption=Math.min(0.95,Math.max(dev.ambientCorruption,corruption+0.00002+dev.p*0.00006));

  const mgc=Math.floor(pmx*cols),mgr=Math.floor(pmy*rows);
  for(let dy=-3;dy<=3;dy++){for(let dx=-3;dx<=3;dx++){
    const r2=mgr+dy,c2=mgc+dx;
    if(r2>=0&&r2<rows&&c2>=0&&c2<cols&&Math.sqrt(dx*dx+dy*dy)<3.5)
      localCorr[r2*cols+c2]=Math.min(1,localCorr[r2*cols+c2]+0.008);
  }}

  const bt=beatVal(cyc,beatIntensity),sq=Math.abs(sqz(cyc,beatIntensity));
  stepA(dev,sq);

  // diffuse + decay
  for(let r=Math.max(1,heartMinR-1);r<Math.min(rows-1,heartMaxR+1);r++){for(let c=Math.max(1,heartMinC-1);c<Math.min(cols-1,heartMaxC+1);c++){
    const i=r*cols+c;
    trail[i]=(trail[i]*(0.8-dev.p*0.06)+(trail[i-1]+trail[i+1]+trail[i-cols]+trail[i+cols])*(0.05+dev.p*0.01))* (0.994-dev.voidness*0.01);
    trailAge[i]+=0.005+dev.p*0.002;
    localCorr[i]*=(0.998-dev.p*0.0015);
    glow[i]*=(0.93-dev.p*0.025);
  }}

  // pulse deposits glow
  if(pw>=0){
    const ring=0.3*pw;
    const spread=0.035*dev.glowSpread;
    const minC=Math.max(heartMinC,Math.floor((0.5-ring-spread)*cols));
    const maxC=Math.min(heartMaxC,Math.ceil((0.5+ring+spread)*cols));
    const minR=Math.max(heartMinR,Math.floor((0.44-ring-spread)*rows));
    const maxR=Math.min(heartMaxR,Math.ceil((0.44+ring+spread)*rows));
    for(let r=minR;r<maxR;r++){for(let c=minC;c<maxC;c++){
      const fx=c/cols,fy=r/rows;
      const dc=Math.sqrt((fx-0.5)**2+(fy-0.44)**2);
      const wd=Math.abs(dc-ring);
      if(wd<spread&&trail[r*cols+c]>0.2)
        glow[r*cols+c]=Math.max(glow[r*cols+c],1-wd/spread);
    }}
  }

  // update rain
  if(frameParity===0){
    for(const r of rain){
      r.y+=r.speed;if(r.y>rows+r.len){r.y=-r.len;r.x=Math.floor(Math.random()*cols);}
      if(Math.random()<0.03)r.chars[Math.floor(Math.random()*r.len)]=HX[Math.floor(Math.random()*16)];
    }
  }

  // update escaped fragments
  escaped=escaped.filter(e=>{
    e.x+=e.vx;e.y+=e.vy;e.vy+=0.03;e.vx*=0.995;e.life-=0.006;
    return e.life>0&&e.y<H+20;
  });

  if(frameParity===0){
    const sortAmt=dev.stage>=1?(2+Math.floor(dev.p*30+corruption*14)):0;
    for(let r=heartMinR;r<heartMaxR;r++){
      if(sortAmt<=0||((r+dev.stage)%2!==0)){sortShift[r]=0;continue;}
      const wave=Math.sin(r*0.23+t*0.9)+Math.sin(r*0.07-t*0.4)*0.5;
      sortShift[r]=Math.round(wave*sortAmt);
    }
  }

  ctx.save();ctx.translate(shake.x,shake.y);
  ctx.fillStyle='#0a0406';ctx.fillRect(-10,-10,W+20,H+20);

  // beat flash
  if(cyc>0.191&&cyc<0.25){
    ctx.fillStyle=`rgba(${45+dev.blueShift*0.2},3,${8+dev.blueShift*0.25},${(0.25-cyc)/0.059*(0.4+dev.p*0.18)})`;
    ctx.fillRect(-10,-10,W+20,H+20);
  }

  const cw=CELL*0.56;

  // RAIN outside heart
  ctx.font=CELL+'px Courier New';
  for(const r of rain){
    for(let j=0;j<r.len;j++){
      const ry=Math.floor(r.y-j);if(ry<0||ry>=rows)continue;
      const fx=r.x/cols,fy=ry/rows;
      if(hTest(fx,fy)<0.03)continue;
      const fade=j===0?1:Math.max(0.08,1-j/r.len);
      const bright=fade*(0.1+corruption*0.15+dev.rainBoost*0.08);
      const rr=Math.floor(50*bright+corruption*30*bright);
      const gg=Math.floor(8*bright);
      const bb=Math.floor(15*bright+corruption*15*bright+dev.blueShift*0.2*bright);
      if(rr>2){
        ctx.fillStyle=`rgb(${rr},${gg},${bb})`;
        ctx.fillText(r.chars[j%r.chars.length],r.x*cw,ry*CELL);
      }
    }
  }

  // BACKGROUND HEART SCAFFOLD
  if(scaffoldCanvas){
      ctx.globalAlpha=0.72;
      ctx.drawImage(scaffoldCanvas,0,0);
      ctx.globalAlpha=1;
  }

  // HEART TISSUE
  for(let r=heartMinR;r<heartMaxR;r++){
    const rowShift=sortShift[r]||0;
    for(let c=heartMinC;c<heartMaxC;c++){
      const srcC=rowShift?Math.max(heartMinC,Math.min(heartMaxC-1,c+rowShift)):c;
      const idx=r*cols+srcC;
      const v=trail[idx];if(v<0.1)continue;
      const age=trailAge[idx],lc=localCorr[idx];
      const tc=Math.min(1,corruption+lc);
      const norm=Math.min(v/4,1);
      const gl=glow[idx];
      const fx=c/cols,fy=r/rows;
      const isPo=trailIsPo[idx]===1;
      if(dev.voidness>0.02&&Math.random()<dev.voidness*(0.08+0.18*(1-norm)))continue;

      let ch=String.fromCharCode(trailChar[idx]||46);
      if(tc>0.2&&Math.random()<tc*(0.1+dev.glitchChance*0.08))ch=HX[Math.floor(Math.random()*16)];
      if(tc>0.5&&Math.random()<tc*(0.05+dev.glitchChance*0.05))ch=String.fromCharCode(0x2580+Math.floor(Math.random()*32));
      const sortHot=rowShift!==0&&!isPo&&dev.stage>=1&&norm>0.16;

      // zalgo
      let stack=Math.min(7,Math.floor(sq*8)+Math.floor(tc*3)+Math.floor(gl*2)+(age<0.02?1:0)+dev.stage);
      let g2=ch;
      const sd=c*71+r*131;
      if(stack>=1)g2+=AB[(sd+Math.floor(t*3))%AB.length];
      if(stack>=2)g2+=BL[(sd*3+Math.floor(t*2.5))%BL.length];
      if(stack>=3)g2+=AB[(sd*7+Math.floor(t*4))%AB.length];
      if(stack>=4)g2+=BL[(sd*11+Math.floor(t*3.5))%BL.length];
      if(stack>=5)g2+=ST[(sd+Math.floor(t*5))%ST.length];
      if(stack>=6)g2+=AB[(sd*13+Math.floor(t*6))%AB.length];
      if(stack>=7)g2+=ST[(sd*17+Math.floor(t*7))%ST.length];

      const pump=0.4+sq*2.5;
      const af=Math.max(0.2,1-age*0.25);

      let cr2,cg2,cb2;
      if(isPo){
        // poetry: warm bright rose-red, stands out
        cr2=Math.floor((170+norm*85)*pump*af+gl*80+tc*15);
        cg2=Math.floor((30+norm*22)*pump*af+gl*30-tc*12);
        cb2=Math.floor((22+norm*15)*pump*af+gl*20+tc*18+dev.blueShift*(0.22+dev.p*0.08));
      }else{
        // hex: deep blood red
        cr2=Math.floor((90+norm*90)*pump*af+gl*55+tc*25);
        cg2=Math.floor((4+norm*5)*pump*af+gl*10-tc*3);
        cb2=Math.floor((6+norm*7)*pump*af+gl*14+tc*18+dev.blueShift*(0.35+dev.p*0.1));
      }
      if(sortHot){
        cr2=Math.max(0,cr2-18);
        cg2=Math.min(255,cg2+46+dev.stage*14);
        cb2=Math.min(255,cb2+88+Math.abs(rowShift)*5);
      }
      if(tc>0.3){cb2=Math.min(255,cb2+Math.floor(tc*25));}
      if(age<0.015){cr2+=50;cg2+=15;cb2+=10;}
      if(gl>0.3){cr2+=Math.floor(gl*60);cg2+=Math.floor(gl*20);cb2+=Math.floor(gl*15);}
      cr2=Math.max(0,Math.min(255,cr2));cg2=Math.max(0,Math.min(255,cg2));cb2=Math.max(0,Math.min(255,cb2));
      if(cr2<3&&cg2<3&&cb2<3)continue;

      // RENDER - poetry gets big font
      if(isPo){
        ctx.font=PCELL+'px Courier New';
        ctx.fillStyle=`rgb(${cr2},${cg2},${cb2})`;
        ctx.fillText(g2,c*cw-2,r*CELL-4);
        ctx.font=CELL+'px Courier New';
      }else{
        if(sortHot&&Math.random()<0.28+dev.p*0.16){
          g2='≋'+g2.slice(1);
        }else if(rowShift&&dev.stage>=1&&Math.random()<0.22+dev.p*0.12){
          g2=HX[(srcC+r+Math.floor(t*6))%16]+g2.slice(1);
        }
        ctx.fillStyle=`rgb(${cr2},${cg2},${cb2})`;
        ctx.fillText(g2,c*cw,r*CELL);
      }
    }
  }

  // ESCAPED FRAGMENTS floating outside
  for(const e of escaped){
    const alpha=Math.min(1,e.life*1.5);
    let ch=e.ch;
    if(corruption>0.3&&Math.random()<corruption*0.2)
      ch+=AB[Math.floor(Math.random()*AB.length)];
    if(corruption>0.5&&Math.random()<0.3)
      ch+=BL[Math.floor(Math.random()*BL.length)];
    ctx.font=(e.isPo?PCELL+2:CELL)+'px Courier New';
    const r3=Math.min(255,Math.floor(200*alpha));
    const g3=Math.floor(40*alpha);
    const b3=Math.floor(30*alpha+corruption*40*alpha+dev.blueShift*0.45*alpha);
    ctx.fillStyle=`rgb(${r3},${g3},${b3})`;
    ctx.fillText(ch,e.x,e.y);
  }

  // heart outline
  ctx.font=CELL+'px Courier New';
  ctx.strokeStyle=`rgba(${65+dev.blueShift*0.18},10,${18+dev.blueShift*0.34},${0.14+sq*0.1+dev.p*0.08})`;ctx.lineWidth=1;ctx.beginPath();
  for(let a=0;a<Math.PI*2;a+=0.015){
    const hx=16*Math.pow(Math.sin(a),3);
    const hy=13*Math.cos(a)-5*Math.cos(2*a)-2*Math.cos(3*a)-Math.cos(4*a);
    const warp=1+Math.sin(a*8+t*0.9)*dev.outlineWarp;
    const sx=W*0.5+hx*(W*0.015*HS)*(1-sq*0.3)*warp;
    const sy=H*0.44-hy*(H*0.015*HS)*(1+sq*0.15)*(1+Math.cos(a*6+t*0.7)*dev.outlineWarp*0.6);
    a<0.015?ctx.moveTo(sx,sy):ctx.lineTo(sx,sy);
  }
  ctx.closePath();ctx.stroke();

  // corruption meter
  const mH=H*0.2,mY2=(H-mH)/2;
  ctx.fillStyle='rgba(25,6,10,0.3)';ctx.fillRect(13,mY2,2,mH);
  ctx.fillStyle=`rgba(${140+Math.floor(corruption*80)},${12},${25+Math.floor(corruption*20)+Math.floor(dev.blueShift*0.4)},0.5)`;
  ctx.fillRect(13,mY2+mH*(1-corruption),2,mH*corruption);
  ctx.font='7px Courier New';ctx.fillStyle='rgba(70,20,28,0.35)';
  ctx.fillText(Math.floor(corruption*100)+'%',10,mY2+mH+10);
  ctx.fillText(STAGE_NAMES[dev.stage],10,mY2-4);

  // cursor
  const curX=pmx*W,curY=pmy*H,cp=0.3+Math.max(0,bt)*0.5;
  ctx.fillStyle=`rgba(190,50,60,${cp*0.45})`;
  ctx.font=`${12+Math.floor(sq*4)}px Courier New`;
  ctx.fillText('\u25CE',curX-5,curY-6);
  ctx.font='8px Courier New';ctx.fillStyle=`rgba(110,28,38,${0.25+sq*0.25})`;
  ctx.fillText('0x'+((Math.floor(pmx*255)<<8|Math.floor(pmy*255))&0xFFFF).toString(16).toUpperCase().padStart(4,'0'),curX+9,curY-2);

  ctx.font=CELL+'px Courier New';ctx.restore();
  requestAnimationFrame(frame);
}

document.addEventListener('mousemove',e=>{mx=e.clientX/W;my=e.clientY/H});
document.addEventListener('touchmove',e=>{e.preventDefault();mx=e.touches[0].clientX/W;my=e.touches[0].clientY/H},{passive:false});
document.addEventListener('click',()=>{
  bootAudio();
  const dev=getDev();
  beatDropped=false;beatIntensity=1;
  pw=0;playBeat(dev);
  shake.x=(Math.random()-0.5)*10;shake.y=(Math.random()-0.5)*7;
  corruption=Math.min(0.95,corruption+0.03);
  const gc=Math.floor(pmx*cols),gr=Math.floor(pmy*rows);
  for(let dy=-8;dy<=8;dy++){for(let dx=-8;dx<=8;dx++){
    const r2=gr+dy,c2=gc+dx;
    if(r2>=0&&r2<rows&&c2>=0&&c2<cols){
      const d=Math.sqrt(dx*dx+dy*dy);
      if(d<8)localCorr[r2*cols+c2]=Math.min(1,localCorr[r2*cols+c2]+0.3*(1-d/8));
    }
  }}
});
document.addEventListener('wheel',e=>{e.preventDefault();
  corruption=e.deltaY<0?Math.max(0,corruption-0.025):Math.min(0.95,corruption+0.015);
},{passive:false});
window.addEventListener('pointerdown',bootAudio,{once:true});
window.addEventListener('keydown',bootAudio,{once:true});
window.addEventListener('touchstart',bootAudio,{once:true,passive:true});
window.addEventListener('resize',resize);resize();frame();
</script>
</body>
</html>