Created
April 5, 2019 04:24
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A Random Walk in JavaScript
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| <html> | |
| <head> | |
| <style> | |
| body { | |
| padding: 0; | |
| margin: 0; | |
| height: 100%; | |
| width: 100%; | |
| display: flex; | |
| justify-content: center; | |
| align-items: center; | |
| } | |
| #canvas { | |
| border: 1px solid whiteSmoke; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <canvas id="canvas" height="500" width="750"></canvas> | |
| </body> | |
| <script> | |
| let x = random(0, 750); | |
| let y = random(0, 500); | |
| function random(min, max) { | |
| return Math.random() * (max - min) + min; | |
| } | |
| function init() { | |
| window.requestAnimationFrame(draw); | |
| } | |
| function draw() { | |
| const canvas = document.getElementById('canvas'); | |
| const ctx = canvas.getContext('2d'); | |
| const nextX = random(-5, 5); | |
| const nextY = random(-5, 5); | |
| ctx.beginPath(); | |
| ctx.moveTo(x, y); | |
| x += random(-5, 5); | |
| y += random(-5, 5); | |
| ctx.lineWidth = 5; | |
| ctx.lineTo(x, y); | |
| ctx.stroke(); | |
| window.requestAnimationFrame(draw); | |
| } | |
| init(); | |
| </script> | |
| </html> |
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https://jsfiddle.net/zhew5ns9/