Развивающаяся лента на HTML5 Canvas
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<canvas id='canv'></canvas> |
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<script> var c = document.getElementById('canv'); var $ = c.getContext('2d'); var w = c.width = window.innerWidth; var h = c.height = window.innerHeight; var txt = function() { var _t = "IMAPO.RU".split("").join(String.fromCharCode(0x2004)); $.font = "4em Poiret One"; $.fillStyle = 'hsla(277, 90%, 50%, .8)'; $.fillText(_t, (c.width - $.measureText(_t).width) * 0.5, c.height * 0.5); return _t; } var draw = function(a, b, t) { $.lineWidth = 0.8; $.fillStyle = 'hsla(277, 95%, 55%, 1)'; $.fillRect(0, 0, w, h); for (var i = -60; i < 60; i += 1) { $.strokeStyle = 'hsla(277, 95%, 15%, .15)'; $.beginPath(); $.moveTo(0, h / 2); for (var j = 0; j < w; j += 10) { $.lineTo(10 * Math.sin(i / 10) + j + 0.008 * j * j, Math.floor( h / 2 + j / 2 * Math.sin(j / 50 - t / 50 - i / 118) + (i * 0.9) * Math.sin(j / 25 - (i + t) / 65))); }; $.stroke(); } } var t = 0; window.addEventListener('resize', function() { c.width = w = window.innerWidth; c.height = h = window.innerHeight; $.fillStyle = 'hsla(277, 95%, 55%, 1)'; }, false); var run = function() { window.requestAnimationFrame(run); t += 5; draw(33, 52 * Math.sin(t / 2400), t); txt(); }; run(); </script> |
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