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A random letter appear and disappear on the screen..ALL
Developer User3011｜Date and time 23/6/15 11:51:40
Build time 30.401 sec｜Game capacity 2.193KB｜

Script

Dot Alphabet Game

Press the alphabet letters in order as fast as you can!

Level: 1

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Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
	<title>Dot Alphabet Game</title>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<style>
		body {
			font-size: 2em;
			text-align: center;
		}
		.dot {
			display: none;
			position: absolute;
			top: 50%;
			left: 50%;
			transform: translate(-50%, -50%);
			font-size: 1em;
			cursor: pointer;
		}
	</style>
</head>
<body>
	<h1>Dot Alphabet Game</h1>
	<p>Press the alphabet letters in order as fast as you can!</p>
	<p id="level">Level: 1</p>
	<div id="container"></div>
	<script>
		const alphabet = 'abcdefghijklmnopqrstuvwxyz';
		let level = 1;
		let count = 0;
		let order = 0;
		let dots = [];

function clearDots() {
			for(let i = 0; i < dots.length; i++) {
				dots[i].style.display = 'none';
			}
			dots = [];
		}

generateDots();

setInterval(function() {
			if(count === alphabet.length) {
				order = 0;
				count = 0;
				level++;
				document.getElementById('level').innerHTML = 'Level: ' + level;
				clearDots();
				generateDots();
			} else {
				let randomIndex = Math.floor(Math.random() * dots.length);
				dots[randomIndex].style.display = 'inline-block';
				setTimeout(function() {
					dots[randomIndex].style.display = 'none';
				}, 2000 - level * 100);
			}
		}, 2000 - level * 100);
	</script>
</body>
</html>