57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
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let inactivityTime = function() {
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let time;
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window.onload = resetTimer;
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document.onmousemove = resetTimer;
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document.onkeypress = resetTimer;
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function resetTimer() {
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clearTimeout(time);
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time = setTimeout(matrix, 2000)
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}
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};
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window.onload = function() {
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inactivityTime();
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}
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function matrix(){
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let canvasnodecreation = document.createElement('canvas')
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document.body.innerHTML=''
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document.body.appendChild(canvasnodecreation)
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var canvas = document.querySelector('canvas'),
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ctx = canvas.getContext('2d');
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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var letters = '010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101';
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letters = letters.split('');
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var fontSize = 10,
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columns = canvas.width / fontSize;
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var drops = [];
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for (var i = 0; i < columns; i++) {
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drops[i] = 1;
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}
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function draw() {
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ctx.fillStyle = 'rgba(0, 0, 0, .1)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < drops.length; i++) {
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var text = letters[Math.floor(Math.random() * letters.length)];
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ctx.fillStyle = '#0f0';
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ctx.fillText(text, i * fontSize, drops[i] * fontSize);
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drops[i]++;
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if (drops[i] * fontSize > canvas.height && Math.random() > .95) {
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drops[i] = 0;
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}
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}
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}
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setInterval(draw, 33);
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}
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