Created
November 20, 2015 16:39
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reaction game
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| function getRandomColor() { | |
| var letters = '0123456789ABCDEF'.split(''); | |
| var color = '#'; | |
| for (var i = 0; i < 6; i++ ) { | |
| color += letters[Math.round(Math.random() * 15)]; | |
| } | |
| return color; | |
| } | |
| var clickedTime; var createdTime; var reactionTime; | |
| document.getElementById("box").onclick = function() { | |
| clickedTime = Date.now(); | |
| reactionTime = (clickedTime - createdTime) / 1000; | |
| document.getElementById("yourTime").innerHTML = reactionTime | |
| this.style.display = "none"; | |
| reset(); | |
| } | |
| function reset() { | |
| var time = Math.random() * 5000 | |
| setTimeout(function() { | |
| if (Math.random() < 0.5) { | |
| document.getElementById("box").style.borderRadius = "50%"; | |
| } else { | |
| document.getElementById("box").style.borderRadius = "0"; | |
| } | |
| var top = Math.random(); | |
| top = top * 300; | |
| var left = Math.random(); | |
| left = left * 300; | |
| document.getElementById("box").style.top = top + "px"; | |
| document.getElementById("box").style.left = left + "px"; | |
| document.getElementById("box").style.backgroundColor = getRandomColor(); | |
| document.getElementById("box").style.display = "block"; | |
| createdTime = Date.now(); | |
| }, time); | |
| } | |
| reset(); | |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Reaction Tester - The Game</title> | |
| <meta charset="utf-8" /> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
| <link rel="stylesheet" type="text/css" href="style.css"> | |
| </head> | |
| <body> | |
| <h1>Test your Reflexes!</h1> | |
| <p>Click on the boxes and circles as quickly as you can!</p> | |
| <p class = "bold">Your time: <span id="yourTime">0</span>s</p> | |
| <div id="box"></div> | |
| <script type="text/javascript" src="script.js"></script> | |
| </body> | |
| </html> |
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| body { | |
| font-family:Verdana, Geneva, sans-serif; | |
| } | |
| #box { | |
| width:200px; | |
| height:200px; | |
| background-color:red; | |
| display:none; | |
| position:relative; | |
| } | |
| .bold { | |
| font-weight:bold; | |
| } |
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