126 lines
2.8 KiB
HTML
126 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="chrome=1">
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<title>BinBin</title>
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<link rel="icon" href="./assets/favicon.ico?v=2">
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<link href="https://fonts.googleapis.com/css?family=Roboto+Slab:700" rel="stylesheet">
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<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
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</head>
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<style>
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html, body {
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min-height: 100%;
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height: 100%;
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margin: 0;
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font-family: 'Roboto Slab', sans-serif;
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-webkit-tap-highlight-color: rgba(0,0,0,0);
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-webkit-tap-highlight-color: transparent;
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overflow: hidden;
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}
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body {
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display: grid;
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background-color: #0e0e0e;
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}
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h1 {
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margin: auto;
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font-family: 'Roboto Slab', sans-serif;
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font-size: 50vh;
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}
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#front {
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margin: 0;
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width: 100%;
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height: 100%;
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top: 0;
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left: 0;
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position: absolute;
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background: rgba(0,0,0,0.85);
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line-height: 100vh;
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text-align: center;
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z-index: 5;
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color: #fff;
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mix-blend-mode: overlay;
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}
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#canvas {
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top: 0;
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left: 0;
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position: absolute;
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mix-blend-mode: screen;
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}
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</style>
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<body>
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<canvas id="canvas" width=window.innerHeight></canvas>
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<h1 id='front'>404</h1>
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</body>
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<script src="./js/tools.js"></script>
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<script>
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var t = 0;
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function drawCanvas() {
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var el = get("canvas")
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var c = el.getContext("2d")
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var block = 10, space = 2, size = block+space;
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var period = 100, freq = 2*Math.PI/period, step = 1.4, base = 0.05;
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var col = randColor();
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var dir = randDir();
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function animCanvas(t, col) {
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// To update when window changes.
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var w = window.innerWidth, h = window.innerHeight;
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var x = w/size, y = h/size;
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var offX = -(w-Math.floor(x)*size)/2, offY = -(h-Math.floor(y)*size)/2;
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el.width = w, el.height = h;
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c.fillStyle = "#0e0e0e";
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c.fillRect(0, 0, w, h);
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for(var i = 0; i < x+1; i++) {
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for(var j = 0; j < y+1; j++) {
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var intes = Math.round(step*Math.cos((i+j*dir[0]+t*dir[1])*freq)+step)*0.2/step+base
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c.fillStyle = `rgba(${col[0]},${col[1]},${col[2]},${intes})`;
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c.fillRect(i*size+offX, j*size+offY, block, block);
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}
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}
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return 1;
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}
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function randColor() {
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var arr = [
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128*Math.round(2*Math.random())-1,
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128*Math.round(2*Math.random())-1,
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128*Math.round(2*Math.random())-1
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];
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while(arr[0]+arr[1]+arr[2] < 382) arr = randColor();
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return arr;
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}
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function randDir() {
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return [
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(Math.round(Math.random())) ? -1 : 1,
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(Math.round(Math.random())) ? -1 : 1
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];
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}
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setInterval(function() {
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t += animCanvas(t, col);
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if(t == period) {
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t = 0;
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newCol = randColor();
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while(newCol === col) newCol == randColor();
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col = newCol;
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}
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}, 80);
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}
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drawCanvas();
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</script>
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</html>
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