Created
July 17, 2025 08:48
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Representation of mobile nodes' wireless mesh network. Used as background animation of vyasdev.net
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<meta name="viewport" content="width=device-width,initial-scale=1.0"> | |
<title>Mobile node mesh network</title> | |
<style> | |
html,body{margin:0;padding:0;overflow:hidden;height:100%;font-family:sans-serif} | |
canvas{position:fixed;top:0;left:0;left:0;right:0;/*z-index:-1*/} | |
</style> | |
</head> | |
<body> | |
<canvas id="bg"></canvas> | |
<script> | |
const c=document.getElementById("bg"),ctx=c.getContext("2d"); | |
let w,h,ants=[]; | |
function resize(){w=window.innerWidth;h=window.innerHeight;c.width=w;c.height=h} | |
window.addEventListener("resize",resize); | |
resize(); | |
function getRandomHexColor() { | |
const randomColor = Math.floor(Math.random() * 16777215).toString(16); | |
return `#${randomColor.padStart(6, '0')}`; | |
} | |
for(let i=0;i<150;i++)ants.push({x:Math.random()*w,y:Math.random()*h,vx:(Math.random()-.5)*1,vy:(Math.random()-.5)*1, color: getRandomHexColor()}); | |
function draw(){ | |
ctx.clearRect(0,0,w,h); | |
for(let i=0;i<ants.length;i++){ | |
let a=ants[i]; | |
a.x+=a.vx; | |
a.y+=a.vy; | |
if(a.x<0||a.x>w)a.vx*=-1; | |
if(a.y<0||a.y>h)a.vy*=-1; | |
ctx.beginPath(); | |
ctx.arc(a.x,a.y,5,0,2*Math.PI); | |
ctx.fillStyle=a.color; | |
ctx.fill(); | |
for(let j=i+1;j<ants.length;j++){ | |
let b=ants[j],dx=a.x-b.x,dy=a.y-b.y,dist=Math.sqrt(dx*dx+dy*dy); | |
if(dist<100){ | |
ctx.beginPath(); | |
ctx.moveTo(a.x,a.y); | |
ctx.lineTo(b.x,b.y); | |
ctx.strokeStyle="rgba(0,0,0,"+(1-dist/100)+")"; | |
ctx.stroke() | |
ants[j].color = ants[i].color; | |
ctx.arc(a.x,a.y,5,0,2*Math.PI); | |
ctx.fillStyle=ants[j].color; | |
} | |
} | |
} | |
requestAnimationFrame(draw) | |
} | |
draw(); | |
</script> | |
</body> | |
</html> |
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