Last active
August 28, 2016 21:14
-
-
Save kentliau/4916b5f9a8958cc2cc45e0dd1755aa95 to your computer and use it in GitHub Desktop.
Quick and dirty LCD screen color test
This file contains hidden or 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
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Screen test</title> | |
| <style> | |
| html, body { | |
| width: 100%; | |
| height: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body onclick="changeColor()" ondblclick="autoChangeColor()"> | |
| <script> | |
| var colors = [ | |
| "rgb(0,0,0)", // Black | |
| "rgb(255,255,255)", // White | |
| "rgb(127,127,127)", // Gray | |
| "rgb(255,0,0)", // Red | |
| "rgb(0,255,0)", // Green | |
| "rgb(0,0,255)", // Blue | |
| "rgb(0,255,255)", // Cyan | |
| "rgb(255,255,0)", // Yellow | |
| "rgb(255,0,255)" // Magenta | |
| ]; | |
| var count = colors.length; | |
| var current = 0; | |
| var intervalId; | |
| function changeColor() { | |
| document.body.style.backgroundColor = colors[current]; | |
| current++; | |
| if (current >= count) { | |
| current = 0; | |
| } | |
| } | |
| function autoChangeColor() { | |
| if (intervalId == undefined) { | |
| intervalId = setInterval(function() { | |
| changeColor() | |
| }, 500); | |
| } else { | |
| clearInterval(intervalId); | |
| intervalId = undefined; | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment