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232 lines
7.3 KiB
232 lines
7.3 KiB
5 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0">
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<title>Leon Sans - Morphing PIXI</title>
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<style>
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html,
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body {
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width: 100%;
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height: 100%;
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overflow: hidden;
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outline: 0;
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margin: 0;
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padding: 0;
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cursor: move;
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}
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</style>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/hammer.js/2.0.8/hammer.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/2.1.3/TweenMax.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/5.0.4/pixi.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/pixi-filters@latest/dist/pixi-filters.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.js"></script>
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</head>
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<body>
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<script src="../dist/leon.js"></script>
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<script src="js/util.js"></script>
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<script>
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let container, texture, particleCon;
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let leon, controll;
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const particleTotal = 5000;
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let particles = [];
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let myText = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789?!$^&*(){}[]<>~:;,.\'"+=-_@#%'.split('');
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const textTotal = myText.length;
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let curText = -1;
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let DELAY_TIME = 0.8;
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function init() {
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generatePixi(0xfec82e);
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myText = shuffle(myText);
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texture = PIXI.Texture.from('data/drop-alpha.png');
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particleCon = new PIXI.ParticleContainer(particleTotal, {
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vertices: false,
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scale: true,
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position: true,
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rotation: false,
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uvs: false,
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alpha: false
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});
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stage.addChild(particleCon);
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let p, i;
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for (i = 0; i < particleTotal; i++) {
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p = new PIXI.Sprite(texture);
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p.x = sw / 2;
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p.y = sh / 2;
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p.anchor.set(0.5);
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p.scale.x = p.scale.y = 0;
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particleCon.addChild(p);
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particles.push(p);
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}
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const blurFilter = new PIXI.filters.BlurFilter();
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blurFilter.blur = 10;
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blurFilter.autoFit = true;
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const fragSource = [
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'precision mediump float;',
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'varying vec2 vTextureCoord;',
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'uniform sampler2D uSampler;',
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'uniform float threshold;',
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'uniform float mr;',
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'uniform float mg;',
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'uniform float mb;',
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'void main(void)',
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'{',
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' vec4 color = texture2D(uSampler, vTextureCoord);',
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' vec3 mcolor = vec3(mr, mg, mb);',
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' if (color.a > threshold) {',
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' gl_FragColor = vec4(mcolor, 1.0);',
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' } else {',
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' gl_FragColor = vec4(vec3(0.0), 0.0);',
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' }',
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'}'
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].join('\n');
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const uniformsData = {
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threshold: 0.5,
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mr: 255.0/255.0,
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mg: 255.0/255.0,
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mb: 255.0/255.0,
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};
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const thresholdFilter = new PIXI.Filter(null, fragSource, uniformsData );
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const outlineFilterBlue = new PIXI.filters.OutlineFilter(1, 0x000000);
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stage.filters = [blurFilter, thresholdFilter, outlineFilterBlue];
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stage.filterArea = renderer.screen;
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controll = {
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weight: 6,
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outline: true
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};
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leon = new LeonSans({
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text: '',
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size: 600,
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weight: 700,
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pathGap: -1,
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isPath: true
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});
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leon.on('update', (data) => {
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update(data);
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});
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const gui = new dat.GUI();
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gui.add(leon, 'size', 400, 1000);
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gui.add(controll, 'weight', 3, 9);
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const otControll = gui.add(controll, 'outline');
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otControll.onChange((value) => {
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if (value) {
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stage.filters = [blurFilter, thresholdFilter, outlineFilterBlue];
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} else {
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stage.filters = [blurFilter, thresholdFilter];
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}
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});
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requestAnimationFrame(animate);
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showText();
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}
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function nextText() {
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TweenMax.killDelayedCallsTo(showText);
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TweenMax.delayedCall(DELAY_TIME, showText);
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}
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function showText() {
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curText += 1;
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if (curText == textTotal) curText = 0;
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leon.text = myText[curText];
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nextText();
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}
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function shuffle(oldArray) {
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var newArray = oldArray.slice(),
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len = newArray.length,
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i = len, p, t;
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while (i--) {
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p = (Math.random()*len) | 0;
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t = newArray[i];
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newArray[i] = newArray[p];
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newArray[p] = t;
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}
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return newArray;
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}
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function update(model) {
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const total = model.paths.length;
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const sw2 = sw / 2;
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const sh2 = sh / 2;
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let i, p, pos, scale;
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for (i = 0; i < particleTotal; i++) {
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p = particles[i];
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TweenMax.killTweensOf(p);
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if (i < total) {
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pos = model.paths[i];
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if (pos.type == 'a') {
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scale = controll.weight * 0.02* leon.scale;
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} else {
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scale = controll.weight * 0.01* leon.scale;
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}
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TweenMax.to(p, 0.4, {
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x: sw2,
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y: sh2,
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ease: Sine.easeIn
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});
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TweenMax.to(p, 0.5, {
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delay: 0.3,
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x: pos.x,
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y: pos.y,
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ease: Expo.easeOut
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});
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TweenMax.to(p.scale, 0.5, {
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delay: 0.3,
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x: scale,
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y: scale,
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ease: Expo.easeOut
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});
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} else {
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TweenMax.to(p, 0.3, {
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x: sw2,
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y: sh2,
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ease: Sine.easeIn
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});
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TweenMax.to(p.scale, 0.3, {
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x: 0,
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y: 0,
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ease: Sine.easeIn
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});
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}
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}
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}
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function animate(t) {
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requestAnimationFrame(animate);
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const x = (sw - leon.rect.w) / 2;
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const y = (sh - leon.rect.h) / 2;
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leon.position(x, y);
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renderer.render(stage);
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}
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window.onload = () => {
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init();
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};
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</script>
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</body>
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</html>
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