Created
February 11, 2018 17:33
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Jitter
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| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <canvas id="myCanvas" width="200" height="100" style="border:1px solid #d3d3d3;"> | |
| Your browser does not support the HTML5 canvas tag.</canvas> | |
| <script> | |
| var c = document.getElementById("myCanvas"); | |
| var ctx = c.getContext("2d"); | |
| var x = 95; | |
| var y = 50; | |
| var f = false; | |
| function gameLoop(){ | |
| var rand = Math.random(); | |
| f = !f; | |
| x = (f) ? x+rand : x-rand; | |
| y = (f) ? y+rand : y-rand; | |
| ctx.clearRect(0,0,200,100); | |
| ctx.rect(0,0,200,100); | |
| ctx.fillStyle = "black"; | |
| ctx.fill(); | |
| ctx.beginPath(); | |
| ctx.fillStyle = "red"; | |
| ctx.arc(x,y,10,0,2*Math.PI); | |
| ctx.fill(); | |
| } | |
| setInterval(gameLoop, 100); | |
| </script> | |
| </body> | |
| </html> |
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