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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="description" content="The Exterminator scans for the number 13 hidden within the patterns of your room so you can eliminate them. But you have to hurry or they will overload the device.">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Exterminator</title>
</head>
<body>
<script>
onload=()=>{
function element(e){return document.body.appendChild(document.createElement(e));}
element("style").textContent=`
*{margin:0;padding:0;position:fixed;box-sizing:border-box;touch-action:none;user-select:none;}
body {
background-color: rgba(255, 255, 255, 0.9);
}
`;
let W;
let H;
let abs=Math.abs,min=Math.min,sqrt=Math.sqrt,floor=Math.floor,random=Math.random,sin=Math.sin,cos=Math.cos,PI=Math.PI;
{
let start=Date.now();
(function waitforheight(){
if(innerHeight<screen.availHeight || Date.now()-start>3000){
W=innerWidth;
H=innerHeight;
// alert(W);
game();
}else{
requestAnimationFrame(waitforheight);
}
})();
}
function game(){
scope();
let CG=element('canvas');
CG.width=W;
CG.height=H;
let CV=element('canvas');
CV.width=W;
CV.height=H;
CV.style.display='none';
let G=CG.getContext('2d');
let V=CV.getContext('2d');
let threshold=100;
let frequency=10;
let delay=100;
let state=1;
let cnt=0;
let q=0;
let newby=0;
let scoperadius=W/2.5;
let enemies=[];
let running=false;
let overload=0;
let time;
let camera=document.createElement('video');
text("Click to Scan");
addEventListener('click',(event)=>{
if(state==1){
state=2;
detector();
}else if(state==2){
state=3;
if(cnt<1){
state=2;
return;
}
gameclick(event);
}else if(state==3){
gameclick(event);
}else if(state==4){
return;
}else if(state==5){
state=1;
G.clearRect(0,0,W,H);
text("Click to Scan");
}
});//end handler
function text(t,relax=false){
let lines=t.split('\n');
G.fillStyle="white";
//let font=20;
let font=W/30;
G.textAlign="center";G.textBaseline="middle";G.font="bold "+font+"px monospace";
if(relax){
G.fillText(lines.at(-1),W/2,H/2+lines.length*20);
}else{
for(let i=0;i<lines.length;i++){
G.fillText(lines[i],W/2,H/2+i*20);
}
}
}
navigator.mediaDevices.getUserMedia({video:{facingMode:"environment"}}).then((j)=>{
camera.width=W;
camera.height=H;
camera.srcObject=j;
camera.autoplay=true;
}).catch((error)=>{
if(error.name==="NotAllowedError"){
alert("Camera access denied. Please enable camera permissions in Chrome or Android settings.");
}else if(error.name==="NotFoundError"){
alert("No camera found on this device.");
}else{
alert("An error occurred while trying to access the camera: "+error.message);
}
});
function detector(){(function animation(){
if(state!=2){
return;
}
let m=new Date().getTime();
let n=window.o||0;
V.drawImage(camera,0,0,W,H);
let p=V.getImageData(0,0,W,H);
q=fake(p);
cnt=q.length;
G.clearRect(0,0,W,H);
if(q.length>0&&m-n>delay){
window.o=m;
q.forEach(({x:r,y:s})=>{
G.save();
G.translate(r,s);
// G.font='bold 20 px Arial';
G.font='bold '+(W/30)+'px Arial';
G.fillStyle='rgba(0,255,0,0.8)';
G.fillText('13',-15,10);
G.restore();
});
}
text("Click to Capture");
setTimeout(()=>animation(),1000/frequency);
})();}
function fake(p){
let w=p.width;
let x=p.height;
let y=p.data;
let z=[];
let A=floor(w/3);
let B=floor(2*w/3);
let C=floor(x/3);
let D=floor(2*x/3);
for(let E=C;E<D-1;E++){
for(let F=A;F<B-1;F++){
let G=(E*w+F)*4;
let H=(y[G]+y[G+1]+y[G+2])/3;
let I=((E)*w+(F+1))*4;
let J=((E+1)*w+F)*4;
let K=(y[I]+y[I+1]+y[I+2])/3;
let L=(y[J]+y[J+1]+y[J+2])/3;
if(abs(H-K)>threshold || abs(H-L)>threshold){
z.push({x:F,y:E});
}
}
}
return z;
}
class Enemy{
constructor(){
//this.radius=10;
this.radius=W/70;
let angle=random()*PI*2;
let distanceFromCenter=random()*(scoperadius-this.radius);
this.x=W/2+cos(angle)*distanceFromCenter;
this.y=H/2+sin(angle)*distanceFromCenter;
this.sx=(random()*1.5+0.5)*(random()<0.5?1:-1);
this.sy=(random()*1.5+0.5)*(random()<0.5?1:-1);
}
draw(){
G.save();
G.translate(this.x,this.y);
G.font='bold '+(W/30)+'px Arial';
G.fillStyle='lime';
G.fillText('13',-15,10);
G.restore();
}
move(){
let speed=sqrt(this.sx*this.sx+this.sy*this.sy);
overload=speed;
this.sx+=0.01*(this.sx/speed);
this.sy+=0.01*(this.sy/speed);
this.x+=this.sx;
this.y+=this.sy;
let dx=this.x-W/2;
let dy=this.y-H/2;
let distance=sqrt(dx*dx+dy*dy);
if(distance+this.radius>=scoperadius){
let normx=dx/distance;
let normy=dy/distance;
let dot=this.sx*normx+this.sy*normy;
this.sx-=2*dot*normx;
this.sy-=2*dot*normy;
}
}
hit(x,y){
let dx=this.x-x;
let dy=this.y-y;
let distance=sqrt(dx*dx+dy*dy);
//return distance<this.radius*10;
return distance<this.radius*8;
}
}//enemy
function spawnEnemies(){
enemies=[];
for(let i=0;i<cnt;i++){
//for(let i=0;i<1;i++){
enemies.push(new Enemy());
}
}
function updateGame(){
G.clearRect(0,0,W,H);
enemies.forEach((enemy)=>{
enemy.move();
enemy.draw();
});
}
function resetGame(){
spawnEnemies();
running=true;
newby++;
time=Date.now();
gameLoop();
}
function gameLoop(){
if(running){
if(overload>8){
overload=0;
running=false;
G.clearRect(0,0,W,H);
brokenglass(W/2, H/2, W/2.1)
text("Scanner Overload");
let b=0;
let a=setInterval(()=>{
text("Scanner Overload\n"+".".repeat(b++),true);
},500);
state=4; setTimeout(()=>{ clearInterval(a); state=5; },2000);
return;
}
updateGame();
if(newby<2 && Date.now()-time<2000){
text("HURRY and SMASH them\nbefore the circuits OVERLOAD");
}
requestAnimationFrame(gameLoop);
}
}
function gameclick(event){
if(!running){
resetGame();
return;
}
let rect=CV.getBoundingClientRect();
let x=event.clientX-rect.left;
let y=event.clientY-rect.top;
let hit=false;
enemies=enemies.filter(enemy=>{
if(enemy.hit(x,y)){
hit=true;
return false;
}
return true;
});
if(hit && enemies.length===0){
overload=0;
running=false;
G.clearRect(0,0,W,H);
let b=0;
text("EXTERMINATED");
let a=setInterval(()=>{
text("EXTERMINATED\n"+".".repeat(b++),true);
},500);
state=4; setTimeout(()=>{ clearInterval(a); state=5; },2000);
return;
}
}
function brokenglass(x,y,radius){
G.clearRect(0,0,W,H);
for(let i=0;i<10;i++){
let p1=rnd(x,y,radius);
let p2=rnd(x,y,radius);
let p3=rnd(x,y,radius);
shard(p1.x,p1.y,p2.x,p2.y,p3.x,p3.y);
}
function shard(x1,y1,x2,y2,x3,y3){
let gradientDirection=random()*2*PI;
let g=G.createLinearGradient(
(x1+x2+x3)/3,(y1+y2+y3)/3,
(x1+x2+x3)/3+cos(gradientDirection)*100,
(y1+y2+y3)/3+sin(gradientDirection)*100
);
g.addColorStop(0,'rgba(173,216,230,0.7)');
g.addColorStop(1,'rgba(255,255,255,0.1)');
G.beginPath();
G.moveTo(x1,y1);
G.lineTo(x2,y2);
G.lineTo(x3,y3);
G.closePath();
G.fillStyle=g;
G.fill();
G.strokeStyle='rgba(255,255,255,0.3)';
G.lineWidth=1;
G.stroke();
}
function rnd(x,y,radius){
let angle=random()*2*PI;
let r=radius*sqrt(random());
return{
x:x+r*cos(angle),
y:y+r*sin(angle)
};
}
}//brokenglass
function scope(){
let leac=element('canvas');
leac.width=W;
leac.height=H;
let lea=leac.getContext('2d');
let radius=min(W,H)/2;
let x=W/2;
let y=H/2;
let g=lea.createRadialGradient(x,y,0,x,y,radius);
g.addColorStop(0,'black');
g.addColorStop(0.93,'black');
g.addColorStop(0.95,'white');
g.addColorStop(1,'transparent');
lea.fillStyle=g;
lea.beginPath();
lea.arc(x,y,radius,0,2*PI);
lea.fill();
lea.strokeStyle='gold';
lea.lineWidth=2;
let z=0.9;
//let tickLength=10;
let tickLength=W/70;
let increment=radius*z/10;
for(let i=-radius*z;i<=radius*z+0.01;i+=increment){
lea.beginPath();
lea.moveTo(x-tickLength,y+i);
lea.lineTo(x+tickLength,y+i);
lea.stroke();
}
for(let i=-radius*z;i<=radius*z+0.01;i+=increment){
lea.beginPath();
lea.moveTo(x+i,y-tickLength);
lea.lineTo(x+i,y+tickLength);
lea.stroke();
}
}
}//end game
}//end onload
</script>
</body>
</html>