296 lines
7.2 KiB
JavaScript
296 lines
7.2 KiB
JavaScript
var firstInit = true;
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function mobileConditions() {
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return !(window.innerWidth > 900 && window.innerHeight < window.innerWidth);
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}
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function tag(name, classes, id) {
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const el = document.createElement(name);
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if(classes) {
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for(let c of classes) {
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el.classList.add(c);
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}
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}
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if(id) {
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el.id = id;
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}
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return el;
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}
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function bgInit(useCSSbg) {
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document.querySelectorAll('.works-card').forEach((el) => {
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const styles = getComputedStyle(el);
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if(firstInit) {
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let bg = styles['background-image'];
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if(bg === 'none') bg = styles['background-color'];
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el.setAttribute('data-bg', bg);
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const bgEl = tag('div', ['bg']);
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bgEl.style.background = bg;
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document.querySelector('.bg-scroller').appendChild(bgEl);
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}
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if(useCSSbg) {
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el.style.background = el.getAttribute('data-bg');
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el.querySelector('.text-container').styles.opacity = '1';
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}
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else {
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el.style.background = '';
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}
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});
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firstInit = false;
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}
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bgInit(false);
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function calculateBg() {
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if(!mobileConditions()) {
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bgInit(false);
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let backgrounds = document.querySelector('.bg-scroller').querySelectorAll('.bg');
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let bgOps = new Array(backgrounds.length).fill(0);
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let textOps = new Array(backgrounds.length).fill(0);
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let scrolledWindows = (window.scrollY - window.innerHeight) / window.innerHeight;
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if(scrolledWindows < 0) scrolledWindows = 0;
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let minBg = Math.floor(scrolledWindows);
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let maxBg = minBg + 1;
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let delta = scrolledWindows - minBg;
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if(delta < 0.3) {
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delta = 0;
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}
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else if(delta < 0.7) {
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delta = 2.5*(delta-0.3);
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}
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else {
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delta = 1;
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}
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//delta = -1 * Math.cos(delta/1 * (Math.PI/2)) + 1;
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bgOps[minBg] = 1;
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bgOps[maxBg] = delta;
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backgrounds.forEach(function(el, i) {
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el.style.opacity = bgOps[i];
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});
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textOps[minBg] = 1-delta;
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textOps[maxBg] = delta;
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document.querySelectorAll('.works-card .text-container').forEach(function(el, i) {
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el.style.opacity = textOps[i];
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});
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}
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else {
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bgInit(true);
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}
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}
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calculateBg();
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function scrollAnimations() {
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calculateBg();
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if(!mobileConditions()) {
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document.querySelectorAll('.main h1, .main h3').forEach(function(el) {
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var scrolledFrac = window.scrollY / window.innerHeight;
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el.style.opacity = Math.min(1, 1.2 - 1.5*scrolledFrac).toString();
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el.style.position = 'relative';
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el.style.top = (scrolledFrac * window.innerHeight / 2).toString() + 'px';
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});
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}
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}
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//window.addEventListener('scroll', scrollAnimations);
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function scrollLoop() {
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scrollAnimations();
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requestAnimationFrame(scrollLoop);
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}
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scrollLoop();
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var canvas = document.querySelector('canvas#bg');
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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var ctx = canvas.getContext('2d');
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window.addEventListener('resize', () => {
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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})
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function Point() {
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var p = this;
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var r = 8;
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// progress below 0 is neglected, negative initial
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// progress serves to introduce random delays -
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// at 0.05 progress points per second, for example
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// a dot with initial progress -0.15 will run 2 frames
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// after a dot with initial progress -0.05
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var initialProgress = -4 * Math.random();
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// moves point to a random location and
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// resets its progress
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this.init = function() {
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p.x = Math.random() * canvas.width;
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p.y = Math.random() * canvas.height;
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p.progress = initialProgress;
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}
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this.draw = function() {
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if(p.progress >= 0) {
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// opacity of of dot changes with progress
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const isDarkMode = document.body.classList.contains('dark-mode');
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let color = isDarkMode ? 255 : 0;
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let multiplier = isDarkMode ? 0.05 : 0.005;
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ctx.fillStyle = `rgba(${color}, ${color}, ${color}, ${Math.sqrt(p.progress*multiplier)})`;
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ctx.beginPath();
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// radius calculation: maps progress from [0, 1] to [0, pi],
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// then takes sine of that to get an increase, then decrease
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// in radius. absolute value to prevent floating point errors
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// accidentally causing negative sine values which cause ctx.arc
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// to throw errors
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ctx.arc(p.x, p.y, Math.abs(Math.sin(Math.PI*p.progress)*r), 0, 2*Math.PI);
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ctx.fill();
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}
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};
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this.render = function() {
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// stars come faster than they go
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// so user can look at them longer
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// i guess? idk this just looked pretty
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if(p.progress > 0.5)
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p.progress += 0.005;
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else
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p.progress += 0.05;
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p.draw();
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if(p.progress >= 1) p.init();
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}
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}
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var dots = [];
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var n = 20;
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for(var i = 0; i < n; i++) {
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dots[i] = new Point();
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dots[i].init();
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}
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function loop() {
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if(window.scrollY <= window.innerHeight) {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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for(var i = 0; i < n; i++) {
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dots[i].render();
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}
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}
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requestAnimationFrame(loop);
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}
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loop();
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var sentences = [
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'Semicolons optional.',
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'Best viewed in Visual Studio Code.',
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'sh -c "$(curl -sL https://nsood.in/randomscript.sh)"',
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'This text is subject to change.',
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'Alliteration alert!',
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'Boolean logic jokes are funny, whether you laugh xor not.',
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];
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var counter = 1;
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var ticker = document.querySelector("footer .ticker");
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function changeText() {
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var el = ticker,
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text = sentences[counter],
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oldText = el.textContent;
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var x = setInterval(function() {
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if(oldText.length != 0) {
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oldText = oldText.slice(0, -1);
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el.textContent = oldText;
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}
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else {
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setTimeout(function() {
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var y = setInterval(function() {
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if(el.textContent.length != text.length) {
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el.textContent = text.slice(0, el.textContent.length+1);
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}
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else {
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setTimeout(function() {
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if(counter >= sentences.length - 1)
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counter = 0;
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else
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counter++;
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changeText();
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}, 5000);
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clearInterval(y);
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}
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}, 60);
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}, 60);
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clearInterval(x);
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}
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}, 60);
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}
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ticker.textContent = sentences[0];
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setTimeout(changeText, 5000);
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// slight convenience: fix the header section with my correct age automatically
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const birthday = {
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date: 19,
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month: 1,
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year: 2001,
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}
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let today = new Date();
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let age = today.getFullYear() - birthday.year;
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if(today.getMonth() <= birthday.month && today.getDate() < birthday.date) {
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--age;
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}
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const tens = ['', ' ten plus', ' twenty', ' thirty', ' forty', ' fifty', ' sixty', ' seventy', 'n eighty', ' ninety'];
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const ones = ['', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine'];
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document.querySelector('.age').textContent = `${tens[Math.floor(age / 10)]} ${ones[age % 10]}`;
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// easter egg
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var sequences = [
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[ 99, 108, 97, 112, 111, 102, 102 ],
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[ 99, 108, 97, 112, 111, 110 ],
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];
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var mode = 0;
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var eei = 0;
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window.addEventListener('keypress', e => {
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const clapper = document.querySelector('.clapper');
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var sequence = sequences[mode];
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if(e.keyCode == sequence[eei]) {
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eei++;
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}
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else {
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eei = 0;
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}
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if(eei == sequence.length) {
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clapper.classList.toggle('clapping');
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setTimeout(() => {
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if(mode === 1) {
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document.body.classList.remove('dark-mode');
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mode = 0;
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}
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else {
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document.body.classList.add('dark-mode');
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mode = 1;
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}
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eei = 0;
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setTimeout(() => clapper.classList.toggle('clapping'), 500);
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}, 500);
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}
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})
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