Created
December 25, 2018 13:36
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JS Bin // source https://jsbin.com/zabexec
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| <style id="jsbin-css"> | |
| body { | |
| margin: 0px; | |
| padding: 0px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="myCanvas"></canvas> | |
| <div></div> | |
| <script id="jsbin-javascript"> | |
| window.onload = function (){ | |
| var canvas = document.getElementById('myCanvas'); | |
| canvas.width = window.innerWidth; | |
| canvas.height = window.innerHeight; | |
| var context = canvas.getContext('2d'); | |
| var centerX = canvas.width / 2; | |
| var centerY = canvas.height / 2; | |
| var radius = 50; | |
| function circle(x, y){ | |
| context.beginPath(); | |
| context.arc(x, y, radius, 0, 2 * Math.PI, false); | |
| context.fillStyle = 'green'; | |
| context.fill(); | |
| context.lineWidth = 5; | |
| context.strokeStyle = '#003300'; | |
| context.stroke(); | |
| } | |
| function rect(x, y){ | |
| context.clearRect(0,0,canvas.width,canvas.height) | |
| context.fillStyle = "blue"; | |
| context.fillRect(x, y, 50, 50); | |
| } | |
| var walk = true; | |
| var walkY = true; | |
| var x = 0; | |
| var y = 0; | |
| function update(){ | |
| if( walkY ) { | |
| y+=5 | |
| } else { | |
| y-=5 | |
| } | |
| if( walk ) { | |
| x+=5 | |
| } else { | |
| x-=5 | |
| } | |
| if( x+50 >= canvas.width || x <= 0 ) { | |
| walk = !walk; | |
| } | |
| if ( y+50 >= canvas.height || y <= 0 ) { | |
| walkY = !walkY; | |
| } | |
| document.querySelector("div").innerHTML = x | |
| rect(x, y); | |
| requestAnimationFrame(update) | |
| }; | |
| update() | |
| } | |
| </script> | |
| <script id="jsbin-source-css" type="text/css">body { | |
| margin: 0px; | |
| padding: 0px; | |
| }</script> | |
| <script id="jsbin-source-javascript" type="text/javascript">window.onload = function (){ | |
| var canvas = document.getElementById('myCanvas'); | |
| canvas.width = window.innerWidth; | |
| canvas.height = window.innerHeight; | |
| var context = canvas.getContext('2d'); | |
| var centerX = canvas.width / 2; | |
| var centerY = canvas.height / 2; | |
| var radius = 50; | |
| function circle(x, y){ | |
| context.beginPath(); | |
| context.arc(x, y, radius, 0, 2 * Math.PI, false); | |
| context.fillStyle = 'green'; | |
| context.fill(); | |
| context.lineWidth = 5; | |
| context.strokeStyle = '#003300'; | |
| context.stroke(); | |
| } | |
| function rect(x, y){ | |
| context.clearRect(0,0,canvas.width,canvas.height) | |
| context.fillStyle = "blue"; | |
| context.fillRect(x, y, 50, 50); | |
| } | |
| var walk = true; | |
| var walkY = true; | |
| var x = 0; | |
| var y = 0; | |
| function update(){ | |
| if( walkY ) { | |
| y+=5 | |
| } else { | |
| y-=5 | |
| } | |
| if( walk ) { | |
| x+=5 | |
| } else { | |
| x-=5 | |
| } | |
| if( x+50 >= canvas.width || x <= 0 ) { | |
| walk = !walk; | |
| } | |
| if ( y+50 >= canvas.height || y <= 0 ) { | |
| walkY = !walkY; | |
| } | |
| document.querySelector("div").innerHTML = x | |
| rect(x, y); | |
| requestAnimationFrame(update) | |
| }; | |
| update() | |
| } </script></body> | |
| </html> |
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| body { | |
| margin: 0px; | |
| padding: 0px; | |
| } |
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
| window.onload = function (){ | |
| var canvas = document.getElementById('myCanvas'); | |
| canvas.width = window.innerWidth; | |
| canvas.height = window.innerHeight; | |
| var context = canvas.getContext('2d'); | |
| var centerX = canvas.width / 2; | |
| var centerY = canvas.height / 2; | |
| var radius = 50; | |
| function circle(x, y){ | |
| context.beginPath(); | |
| context.arc(x, y, radius, 0, 2 * Math.PI, false); | |
| context.fillStyle = 'green'; | |
| context.fill(); | |
| context.lineWidth = 5; | |
| context.strokeStyle = '#003300'; | |
| context.stroke(); | |
| } | |
| function rect(x, y){ | |
| context.clearRect(0,0,canvas.width,canvas.height) | |
| context.fillStyle = "blue"; | |
| context.fillRect(x, y, 50, 50); | |
| } | |
| var walk = true; | |
| var walkY = true; | |
| var x = 0; | |
| var y = 0; | |
| function update(){ | |
| if( walkY ) { | |
| y+=5 | |
| } else { | |
| y-=5 | |
| } | |
| if( walk ) { | |
| x+=5 | |
| } else { | |
| x-=5 | |
| } | |
| if( x+50 >= canvas.width || x <= 0 ) { | |
| walk = !walk; | |
| } | |
| if ( y+50 >= canvas.height || y <= 0 ) { | |
| walkY = !walkY; | |
| } | |
| document.querySelector("div").innerHTML = x | |
| rect(x, y); | |
| requestAnimationFrame(update) | |
| }; | |
| update() | |
| } |
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