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@lihsai0
Last active November 28, 2017 01:22
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[Little H5] some interesting h5 codes #H5
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!--
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
-->
<title>Matrix</title>
<style>
body {
margin: 0;
padding: 0;
background: black;
}
canvas {
display: block;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script>
var c = document.getElementById("c");
var ctx = c.getContext("2d");
c.height = window.innerHeight;
c.width = window.innerWidth;
var matrix = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789@#$%^&*()*&^%";
matrix = matrix.split("");
var font_size = 15;
var columns = c.width / font_size;
var drops = [];
for (var x = 0; x < columns; x++)
drops[x] = 1;
function draw() {
ctx.fillStyle = "rgba(0, 0, 0, 0.04)";
ctx.fillRect(0, 0, c.width, c.height);
ctx.fillStyle = "#3F3";
ctx.font = font_size + "px arial";
for (var i = 0; i < drops.length; i++) {
var text = matrix[Math.floor(Math.random() * matrix.length)];
ctx.fillText(text, i * font_size, drops[i] * font_size);
if (drops[i] * font_size > c.height && Math.random() > 0.975)
drops[i] = 0;
drops[i]++;
}
}
setInterval(draw, 35);
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!--
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
-->
<title>Snake</title>
</head>
<body>
<canvas id="can" width="400" height="400" style="background: Black"></canvas>
<script>
var sn = [42, 41], dz = 43, fx = 1, n, ctx = document.getElementById("can").getContext("2d");
function draw(t, c) {
ctx.fillStyle = c;
ctx.fillRect(t % 20 * 20 + 1, ~~(t / 20) * 20 + 1, 18, 18);
}
document.onkeydown = function (e) {
fx = sn[1] - sn[0] == (n = [-1, -20, 1, 20][(e || event).keyCode - 37] || fx) ? fx : n
};
!function () {
sn.unshift(n = sn[0] + fx);
if (sn.indexOf(n, 1) > 0 || n < 0 || n > 399 || fx == 1 && n % 20 == 0 || fx == -1 && n % 20 == 19)
return alert("GAME OVER");
draw(n, "Lime");
if (n == dz) {
while (sn.indexOf(dz = ~~(Math.random() * 400)) >= 0);
draw(dz, "Yellow");
} else
draw(sn.pop(), "Black");
setTimeout(arguments.callee, 130);
}();
</script>
</body>
</html>
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