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}

Speed Coded Mouse Toy

  1. d = document
  2. b = d.body
  3. b.style.margin = 0
  4. with (b.appendChild(
  5.   Object.assign(d.createElement`canvas`, {
  6.     width: innerWidth,
  7.     height: innerHeight,
  8.   })
  9. ).getContext`2d`) {
  10.   mx = 0
  11.   my = 0
  12.  
  13.   onresize = _ => {
  14.     canvas.width = innerWidth
  15.     canvas.height = innerHeight
  16.   }
  17.  
  18.   onpointermove = e => {
  19.     mx = e.clientX, 
  20.     my = e.clientY
  21.   }
  22.  
  23.   r = 0
  24.   loop = () => {
  25.     save()
  26.     globalCompositeOperation = 'hard-light'
  27.     translate(innerWidth / 2, innerHeight / 2)
  28.  
  29.     rotate(r += .02)
  30.     translate(-innerWidth / 2, -innerHeight / 2)
  31.  
  32.     fillStyle = 'rgba(55, 55, 55, .01)'
  33.     fillRect(0, 0, innerWidth, innerHeight)
  34.  
  35.     fillStyle = 'rgba(116, 196, 221, .02)'
  36.     fillRect(0, my, innerWidth, 20);
  37.  
  38.     fillStyle = 'rgba(255, 255, 255, .02)'
  39.     fillRect(mx, 0, 20, innerHeight);
  40.  
  41.     fillStyle = 'rgba(0, 0, 0, .03)'
  42.     fillRect(0, innerHeight - my, innerWidth, 20);
  43.  
  44.     fillStyle = 'rgba(116, 196, 221, .02)'
  45.     fillRect(innerWidth - mx, 0, 20, innerHeight);
  46.     restore()
  47.     requestAnimationFrame(loop)
  48.   }
  49.   loop()
  50. }

Speed coded mouse toy…

snippet.zone ~ 2021-22 /// {s/z}