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August 11, 2016 02:24
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Save JeffreyBPetersen/ecd62c39b01502a7c6655c555626e7cb to your computer and use it in GitHub Desktop.
I named this "noip" for no particular reason.
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| body { | |
| align-items: center; | |
| display: flex; | |
| justify-content: center; | |
| margin: 0; | |
| min-height: 100vh; | |
| } | |
| #noip { | |
| background-color: #000; | |
| border-radius: 25vmin; | |
| height: 50vmin; | |
| width: 50vmin; | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <link href='noip.css' rel='stylesheet'></link> | |
| <script src='noip.js' defer></script> | |
| <title>noip</title> | |
| <body> | |
| <div id='noip'></div> | |
| </body> | |
| </html> |
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| let position = { | |
| r: 0, | |
| g: 0, | |
| b: 0 | |
| }; | |
| let velocity = { | |
| r: 0, | |
| g: 0, | |
| b: 0 | |
| }; | |
| let charge = { | |
| r: 0, | |
| g: 0, | |
| b: 0 | |
| } | |
| noip = () => { | |
| let channel = ['r','g','b'][Math.floor(Math.random()*3)]; | |
| if(position[channel] == 0) velocity[channel]++; | |
| else if(position[channel] == 255) velocity[channel]--; | |
| else velocity[channel] += (Math.floor(Math.random()*2) - 1) * 2 + 1; | |
| charge.r += Math.abs(velocity.r); | |
| charge.g += Math.abs(velocity.g); | |
| charge.b += Math.abs(velocity.b); | |
| if(charge.r > charge.g && charge.r > charge.b) channel = 'r'; | |
| else if(charge.g > charge.b) channel = 'g'; | |
| else channel = 'b'; | |
| if(velocity[channel] > 0) position[channel]++; | |
| else if(velocity[channel] < 0) position[channel]--; | |
| if(position[channel] == 0 || position[channel] == 255) velocity[channel] = 0; | |
| charge[channel] = 0; | |
| document.getElementById('noip').style.backgroundColor = `rgb(${position.r},${position.g},${position.b})`; | |
| window.requestAnimationFrame(noip); | |
| } | |
| toggle = () => { | |
| document.body.style.backgroundColor = document.body.style.backgroundColor == 'rgb(0, 0, 0)' ? '#FFF' : '#000'; | |
| velocity.r *= -1; | |
| velocity.g *= -1; | |
| velocity.b *= -1; | |
| position.r = (position.r - 128) * -1 + 127; | |
| position.g = (position.g - 128) * -1 + 127; | |
| position.b = (position.b - 128) * -1 + 127; | |
| document.getElementById('noip').style.backgroundColor = `rgb(${position.r},${position.g},${position.b})`; | |
| } | |
| main = () => { | |
| document.getElementById('noip').addEventListener('click', toggle); | |
| noip(); | |
| } | |
| main(); |
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