Created
December 16, 2019 10:14
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Bouncing balls // source https://jsbin.com/gocubije
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<title>Bouncing balls</title> | |
<link rel="stylesheet" href="style.css"> | |
<style id="jsbin-css"> | |
html, body { | |
margin: 0; | |
} | |
html { | |
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; | |
height: 100%; | |
} | |
body { | |
overflow: hidden; | |
height: inherit; | |
} | |
h1 { | |
font-size: 2rem; | |
letter-spacing: -1px; | |
position: absolute; | |
margin: 0; | |
top: -4px; | |
right: 5px; | |
color: transparent; | |
text-shadow: 0 0 4px white; | |
} | |
</style> | |
</head> | |
<body> | |
<h1>bouncing balls</h1> | |
<canvas></canvas> | |
<script src="main.js"></script> | |
<script id="jsbin-javascript"> | |
// setup canvas | |
const canvas = document.querySelector('canvas'); | |
const ctx = canvas.getContext('2d'); | |
const width = canvas.width = window.innerWidth; | |
const height = canvas.height = window.innerHeight; | |
// function to generate random number | |
function random(min,max) { | |
const num = Math.floor(Math.random()*(max-min)) + min; | |
return num; | |
} | |
function Ball(x, y, velX, velY, color, size) { | |
this.x = x; | |
this.y = y; | |
this.velX = velX; | |
this.velY = velY; | |
this.color = color; | |
this.size = size; | |
} | |
Ball.prototype.draw = function() { | |
ctx.beginPath(); | |
ctx.fillStyle = this.color; | |
ctx.arc(this.x, this.y, this.size, 0, 2 * Math.PI); | |
ctx.fill(); | |
} | |
</script> | |
<script id="jsbin-source-css" type="text/css">html, body { | |
margin: 0; | |
} | |
html { | |
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; | |
height: 100%; | |
} | |
body { | |
overflow: hidden; | |
height: inherit; | |
} | |
h1 { | |
font-size: 2rem; | |
letter-spacing: -1px; | |
position: absolute; | |
margin: 0; | |
top: -4px; | |
right: 5px; | |
color: transparent; | |
text-shadow: 0 0 4px white; | |
}</script> | |
<script id="jsbin-source-javascript" type="text/javascript">// setup canvas | |
const canvas = document.querySelector('canvas'); | |
const ctx = canvas.getContext('2d'); | |
const width = canvas.width = window.innerWidth; | |
const height = canvas.height = window.innerHeight; | |
// function to generate random number | |
function random(min,max) { | |
const num = Math.floor(Math.random()*(max-min)) + min; | |
return num; | |
} | |
function Ball(x, y, velX, velY, color, size) { | |
this.x = x; | |
this.y = y; | |
this.velX = velX; | |
this.velY = velY; | |
this.color = color; | |
this.size = size; | |
} | |
Ball.prototype.draw = function() { | |
ctx.beginPath(); | |
ctx.fillStyle = this.color; | |
ctx.arc(this.x, this.y, this.size, 0, 2 * Math.PI); | |
ctx.fill(); | |
}</script></body> | |
</html> |
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html, body { | |
margin: 0; | |
} | |
html { | |
font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; | |
height: 100%; | |
} | |
body { | |
overflow: hidden; | |
height: inherit; | |
} | |
h1 { | |
font-size: 2rem; | |
letter-spacing: -1px; | |
position: absolute; | |
margin: 0; | |
top: -4px; | |
right: 5px; | |
color: transparent; | |
text-shadow: 0 0 4px white; | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// setup canvas | |
const canvas = document.querySelector('canvas'); | |
const ctx = canvas.getContext('2d'); | |
const width = canvas.width = window.innerWidth; | |
const height = canvas.height = window.innerHeight; | |
// function to generate random number | |
function random(min,max) { | |
const num = Math.floor(Math.random()*(max-min)) + min; | |
return num; | |
} | |
function Ball(x, y, velX, velY, color, size) { | |
this.x = x; | |
this.y = y; | |
this.velX = velX; | |
this.velY = velY; | |
this.color = color; | |
this.size = size; | |
} | |
Ball.prototype.draw = function() { | |
ctx.beginPath(); | |
ctx.fillStyle = this.color; | |
ctx.arc(this.x, this.y, this.size, 0, 2 * Math.PI); | |
ctx.fill(); | |
} |
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