Created
July 27, 2021 18:48
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Creates a grid, filled with squares of random color
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>random pattern generator</title> | |
| <!--<link rel="stylesheet" href="style.css" /> --> | |
| </head> | |
| <body id="home"> | |
| <canvas id="canvas" width="1000px" height="1000px"></canvas> | |
| </body> | |
| <script> | |
| const canvas = document.getElementById('canvas') | |
| .getContext('2d'); | |
| canvas.fillStyle = 'green'; | |
| canvas.fillRect(0, 0, 100, 100); | |
| const size = 50; | |
| const fillGrid = (rows) => { | |
| rows.forEach((row, verticalIndex) => { | |
| row.forEach((blockColor, horizontalIndex) => { | |
| canvas.fillStyle = blockColor; | |
| canvas.fillRect(horizontalIndex * size, verticalIndex * size , size, size); | |
| }); | |
| }); | |
| }; | |
| /* | |
| fillGrid([ | |
| ['green', 'blue', 'white'], | |
| ['blue', 'white', 'green'], | |
| ['white', 'blue', 'green'], | |
| ]) | |
| */ | |
| const getRandomInt = (max) => { | |
| return Math.floor(Math.random() * Math.floor(max)); | |
| } | |
| const pick = (options) => options[getRandomInt(options.length)]; | |
| const generateGrid = (colors, width, height) => | |
| Array(width).fill().map(() => Array(height).fill().map(() => pick(colors))) | |
| fillGrid(generateGrid(['green', 'blue', 'white', 'yellow'], 1000/size, 1000/size)); | |
| </script> | |
| </html> |
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