mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-08-28 20:12:41 +00:00
627 lines
17 KiB
JavaScript
627 lines
17 KiB
JavaScript
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(function main(global, module, isWorker, workerSize) {
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var canUseWorker = !!(
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global.Worker &&
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global.Blob &&
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global.Promise &&
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global.OffscreenCanvas &&
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global.OffscreenCanvasRenderingContext2D &&
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global.HTMLCanvasElement &&
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global.HTMLCanvasElement.prototype.transferControlToOffscreen &&
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global.URL &&
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global.URL.createObjectURL);
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function noop() {}
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// create a promise if it exists, otherwise, just
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// call the function directly
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function promise(func) {
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var ModulePromise = module.exports.Promise;
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var Prom = ModulePromise !== void 0 ? ModulePromise : global.Promise;
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if (typeof Prom === 'function') {
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return new Prom(func);
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}
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func(noop, noop);
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return null;
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}
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var raf = (function () {
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var TIME = Math.floor(1000 / 60);
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var frame, cancel;
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var frames = {};
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var lastFrameTime = 0;
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if (typeof requestAnimationFrame === 'function' && typeof cancelAnimationFrame === 'function') {
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frame = function (cb) {
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var id = Math.random();
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frames[id] = requestAnimationFrame(function onFrame(time) {
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if (lastFrameTime === time || lastFrameTime + TIME - 1 < time) {
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lastFrameTime = time;
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delete frames[id];
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cb();
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} else {
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frames[id] = requestAnimationFrame(onFrame);
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}
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});
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return id;
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};
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cancel = function (id) {
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if (frames[id]) {
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cancelAnimationFrame(frames[id]);
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}
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};
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} else {
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frame = function (cb) {
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return setTimeout(cb, TIME);
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};
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cancel = function (timer) {
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return clearTimeout(timer);
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};
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}
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return { frame: frame, cancel: cancel };
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}());
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var getWorker = (function () {
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var worker;
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var prom;
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var resolves = {};
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function decorate(worker) {
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function execute(options, callback) {
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worker.postMessage({ options: options || {}, callback: callback });
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}
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worker.init = function initWorker(canvas) {
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var offscreen = canvas.transferControlToOffscreen();
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worker.postMessage({ canvas: offscreen }, [offscreen]);
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};
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worker.fire = function fireWorker(options, size, done) {
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if (prom) {
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execute(options, null);
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return prom;
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}
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var id = Math.random().toString(36).slice(2);
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prom = promise(function (resolve) {
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function workerDone(msg) {
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if (msg.data.callback !== id) {
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return;
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}
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delete resolves[id];
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worker.removeEventListener('message', workerDone);
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prom = null;
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done();
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resolve();
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}
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worker.addEventListener('message', workerDone);
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execute(options, id);
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resolves[id] = workerDone.bind(null, { data: { callback: id }});
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});
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return prom;
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};
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worker.reset = function resetWorker() {
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worker.postMessage({ reset: true });
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for (var id in resolves) {
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resolves[id]();
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delete resolves[id];
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}
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};
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}
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return function () {
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if (worker) {
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return worker;
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}
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if (!isWorker && canUseWorker) {
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var code = [
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'var CONFETTI, SIZE = {}, module = {};',
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'(' + main.toString() + ')(this, module, true, SIZE);',
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'onmessage = function(msg) {',
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' if (msg.data.options) {',
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' CONFETTI(msg.data.options).then(function () {',
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' if (msg.data.callback) {',
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' postMessage({ callback: msg.data.callback });',
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' }',
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' });',
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' } else if (msg.data.reset) {',
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' CONFETTI && CONFETTI.reset();',
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' } else if (msg.data.resize) {',
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' SIZE.width = msg.data.resize.width;',
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' SIZE.height = msg.data.resize.height;',
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' } else if (msg.data.canvas) {',
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' SIZE.width = msg.data.canvas.width;',
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' SIZE.height = msg.data.canvas.height;',
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' CONFETTI = module.exports.create(msg.data.canvas);',
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' }',
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'}',
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].join('\n');
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try {
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worker = new Worker(URL.createObjectURL(new Blob([code])));
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} catch (e) {
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// eslint-disable-next-line no-console
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typeof console !== undefined && typeof console.warn === 'function' ? console.warn('🎊 Could not load worker', e) : null;
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return null;
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}
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decorate(worker);
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}
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return worker;
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};
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})();
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var defaults = {
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particleCount: 50,
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angle: 90,
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spread: 45,
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startVelocity: 45,
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decay: 0.9,
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gravity: 1,
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drift: 0,
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ticks: 200,
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x: 0.5,
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y: 0.5,
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shapes: ['square', 'circle'],
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zIndex: 100,
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colors: [
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'#26ccff',
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'#a25afd',
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'#ff5e7e',
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'#88ff5a',
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'#fcff42',
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'#ffa62d',
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'#ff36ff'
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],
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// probably should be true, but back-compat
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disableForReducedMotion: false,
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scalar: 1
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};
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function convert(val, transform) {
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return transform ? transform(val) : val;
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}
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function isOk(val) {
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return !(val === null || val === undefined);
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}
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function prop(options, name, transform) {
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return convert(
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options && isOk(options[name]) ? options[name] : defaults[name],
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transform
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);
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}
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function onlyPositiveInt(number){
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return number < 0 ? 0 : Math.floor(number);
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}
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function randomInt(min, max) {
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// [min, max)
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return Math.floor(Math.random() * (max - min)) + min;
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}
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function toDecimal(str) {
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return parseInt(str, 16);
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}
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function colorsToRgb(colors) {
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return colors.map(hexToRgb);
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}
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function hexToRgb(str) {
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var val = String(str).replace(/[^0-9a-f]/gi, '');
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if (val.length < 6) {
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val = val[0]+val[0]+val[1]+val[1]+val[2]+val[2];
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}
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return {
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r: toDecimal(val.substring(0,2)),
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g: toDecimal(val.substring(2,4)),
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b: toDecimal(val.substring(4,6))
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};
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}
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function getOrigin(options) {
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var origin = prop(options, 'origin', Object);
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origin.x = prop(origin, 'x', Number);
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origin.y = prop(origin, 'y', Number);
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return origin;
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}
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function setCanvasWindowSize(canvas) {
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canvas.width = document.documentElement.clientWidth;
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canvas.height = document.documentElement.clientHeight;
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}
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function setCanvasRectSize(canvas) {
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var rect = canvas.getBoundingClientRect();
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canvas.width = rect.width;
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canvas.height = rect.height;
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}
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function getCanvas(zIndex) {
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var canvas = document.createElement('canvas');
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canvas.style.position = 'fixed';
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canvas.style.top = '0px';
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canvas.style.left = '0px';
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canvas.style.pointerEvents = 'none';
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canvas.style.zIndex = zIndex;
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return canvas;
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}
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function ellipse(context, x, y, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
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context.save();
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context.translate(x, y);
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context.rotate(rotation);
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context.scale(radiusX, radiusY);
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context.arc(0, 0, 1, startAngle, endAngle, antiClockwise);
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context.restore();
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}
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function randomPhysics(opts) {
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var radAngle = opts.angle * (Math.PI / 180);
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var radSpread = opts.spread * (Math.PI / 180);
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return {
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x: opts.x,
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y: opts.y,
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wobble: Math.random() * 10,
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wobbleSpeed: Math.min(0.11, Math.random() * 0.1 + 0.05),
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velocity: (opts.startVelocity * 0.5) + (Math.random() * opts.startVelocity),
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angle2D: -radAngle + ((0.5 * radSpread) - (Math.random() * radSpread)),
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tiltAngle: (Math.random() * (0.75 - 0.25) + 0.25) * Math.PI,
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color: opts.color,
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shape: opts.shape,
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tick: 0,
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totalTicks: opts.ticks,
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decay: opts.decay,
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drift: opts.drift,
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random: Math.random() + 2,
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tiltSin: 0,
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tiltCos: 0,
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wobbleX: 0,
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wobbleY: 0,
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gravity: opts.gravity * 3,
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ovalScalar: 0.6,
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scalar: opts.scalar
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};
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}
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function updateFetti(context, fetti) {
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fetti.x += Math.cos(fetti.angle2D) * fetti.velocity + fetti.drift;
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fetti.y += Math.sin(fetti.angle2D) * fetti.velocity + fetti.gravity;
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fetti.wobble += fetti.wobbleSpeed;
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fetti.velocity *= fetti.decay;
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fetti.tiltAngle += 0.1;
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fetti.tiltSin = Math.sin(fetti.tiltAngle);
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fetti.tiltCos = Math.cos(fetti.tiltAngle);
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fetti.random = Math.random() + 2;
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fetti.wobbleX = fetti.x + ((10 * fetti.scalar) * Math.cos(fetti.wobble));
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fetti.wobbleY = fetti.y + ((10 * fetti.scalar) * Math.sin(fetti.wobble));
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var progress = (fetti.tick++) / fetti.totalTicks;
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var x1 = fetti.x + (fetti.random * fetti.tiltCos);
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var y1 = fetti.y + (fetti.random * fetti.tiltSin);
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var x2 = fetti.wobbleX + (fetti.random * fetti.tiltCos);
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var y2 = fetti.wobbleY + (fetti.random * fetti.tiltSin);
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context.fillStyle = 'rgba(' + fetti.color.r + ', ' + fetti.color.g + ', ' + fetti.color.b + ', ' + (1 - progress) + ')';
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context.beginPath();
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if (fetti.shape === 'circle') {
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context.ellipse ?
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context.ellipse(fetti.x, fetti.y, Math.abs(x2 - x1) * fetti.ovalScalar, Math.abs(y2 - y1) * fetti.ovalScalar, Math.PI / 10 * fetti.wobble, 0, 2 * Math.PI) :
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ellipse(context, fetti.x, fetti.y, Math.abs(x2 - x1) * fetti.ovalScalar, Math.abs(y2 - y1) * fetti.ovalScalar, Math.PI / 10 * fetti.wobble, 0, 2 * Math.PI);
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} else if (fetti.shape === 'star') {
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var rot = Math.PI / 2 * 3;
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var innerRadius = 4 * fetti.scalar;
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var outerRadius = 8 * fetti.scalar;
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var x = fetti.x;
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var y = fetti.y;
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var spikes = 5;
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var step = Math.PI / spikes;
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while (spikes--) {
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x = fetti.x + Math.cos(rot) * outerRadius;
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y = fetti.y + Math.sin(rot) * outerRadius;
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context.lineTo(x, y);
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rot += step;
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x = fetti.x + Math.cos(rot) * innerRadius;
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y = fetti.y + Math.sin(rot) * innerRadius;
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context.lineTo(x, y);
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rot += step;
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}
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} else {
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context.moveTo(Math.floor(fetti.x), Math.floor(fetti.y));
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context.lineTo(Math.floor(fetti.wobbleX), Math.floor(y1));
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context.lineTo(Math.floor(x2), Math.floor(y2));
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context.lineTo(Math.floor(x1), Math.floor(fetti.wobbleY));
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}
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context.closePath();
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context.fill();
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return fetti.tick < fetti.totalTicks;
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}
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function animate(canvas, fettis, resizer, size, done) {
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var animatingFettis = fettis.slice();
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var context = canvas.getContext('2d');
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var animationFrame;
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var destroy;
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var prom = promise(function (resolve) {
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function onDone() {
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animationFrame = destroy = null;
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context.clearRect(0, 0, size.width, size.height);
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done();
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resolve();
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}
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function update() {
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if (isWorker && !(size.width === workerSize.width && size.height === workerSize.height)) {
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size.width = canvas.width = workerSize.width;
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size.height = canvas.height = workerSize.height;
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}
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if (!size.width && !size.height) {
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resizer(canvas);
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size.width = canvas.width;
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size.height = canvas.height;
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}
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context.clearRect(0, 0, size.width, size.height);
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animatingFettis = animatingFettis.filter(function (fetti) {
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return updateFetti(context, fetti);
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});
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if (animatingFettis.length) {
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animationFrame = raf.frame(update);
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} else {
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onDone();
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}
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}
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animationFrame = raf.frame(update);
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destroy = onDone;
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});
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return {
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addFettis: function (fettis) {
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animatingFettis = animatingFettis.concat(fettis);
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return prom;
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},
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canvas: canvas,
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promise: prom,
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reset: function () {
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if (animationFrame) {
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raf.cancel(animationFrame);
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}
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if (destroy) {
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destroy();
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}
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}
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};
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}
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function confettiCannon(canvas, globalOpts) {
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var isLibCanvas = !canvas;
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var allowResize = !!prop(globalOpts || {}, 'resize');
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var globalDisableForReducedMotion = prop(globalOpts, 'disableForReducedMotion', Boolean);
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var shouldUseWorker = canUseWorker && !!prop(globalOpts || {}, 'useWorker');
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var worker = shouldUseWorker ? getWorker() : null;
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var resizer = isLibCanvas ? setCanvasWindowSize : setCanvasRectSize;
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var initialized = (canvas && worker) ? !!canvas.__confetti_initialized : false;
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var preferLessMotion = typeof matchMedia === 'function' && matchMedia('(prefers-reduced-motion)').matches;
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var animationObj;
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function fireLocal(options, size, done) {
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var particleCount = prop(options, 'particleCount', onlyPositiveInt);
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var angle = prop(options, 'angle', Number);
|
||
|
var spread = prop(options, 'spread', Number);
|
||
|
var startVelocity = prop(options, 'startVelocity', Number);
|
||
|
var decay = prop(options, 'decay', Number);
|
||
|
var gravity = prop(options, 'gravity', Number);
|
||
|
var drift = prop(options, 'drift', Number);
|
||
|
var colors = prop(options, 'colors', colorsToRgb);
|
||
|
var ticks = prop(options, 'ticks', Number);
|
||
|
var shapes = prop(options, 'shapes');
|
||
|
var scalar = prop(options, 'scalar');
|
||
|
var origin = getOrigin(options);
|
||
|
|
||
|
var temp = particleCount;
|
||
|
var fettis = [];
|
||
|
|
||
|
var startX = canvas.width * origin.x;
|
||
|
var startY = canvas.height * origin.y;
|
||
|
|
||
|
while (temp--) {
|
||
|
fettis.push(
|
||
|
randomPhysics({
|
||
|
x: startX,
|
||
|
y: startY,
|
||
|
angle: angle,
|
||
|
spread: spread,
|
||
|
startVelocity: startVelocity,
|
||
|
color: colors[temp % colors.length],
|
||
|
shape: shapes[randomInt(0, shapes.length)],
|
||
|
ticks: ticks,
|
||
|
decay: decay,
|
||
|
gravity: gravity,
|
||
|
drift: drift,
|
||
|
scalar: scalar
|
||
|
})
|
||
|
);
|
||
|
}
|
||
|
|
||
|
// if we have a previous canvas already animating,
|
||
|
// add to it
|
||
|
if (animationObj) {
|
||
|
return animationObj.addFettis(fettis);
|
||
|
}
|
||
|
|
||
|
animationObj = animate(canvas, fettis, resizer, size , done);
|
||
|
|
||
|
return animationObj.promise;
|
||
|
}
|
||
|
|
||
|
function fire(options) {
|
||
|
var disableForReducedMotion = globalDisableForReducedMotion || prop(options, 'disableForReducedMotion', Boolean);
|
||
|
var zIndex = prop(options, 'zIndex', Number);
|
||
|
|
||
|
if (disableForReducedMotion && preferLessMotion) {
|
||
|
return promise(function (resolve) {
|
||
|
resolve();
|
||
|
});
|
||
|
}
|
||
|
|
||
|
if (isLibCanvas && animationObj) {
|
||
|
// use existing canvas from in-progress animation
|
||
|
canvas = animationObj.canvas;
|
||
|
} else if (isLibCanvas && !canvas) {
|
||
|
// create and initialize a new canvas
|
||
|
canvas = getCanvas(zIndex);
|
||
|
document.body.appendChild(canvas);
|
||
|
}
|
||
|
|
||
|
if (allowResize && !initialized) {
|
||
|
// initialize the size of a user-supplied canvas
|
||
|
resizer(canvas);
|
||
|
}
|
||
|
|
||
|
var size = {
|
||
|
width: canvas.width,
|
||
|
height: canvas.height
|
||
|
};
|
||
|
|
||
|
if (worker && !initialized) {
|
||
|
worker.init(canvas);
|
||
|
}
|
||
|
|
||
|
initialized = true;
|
||
|
|
||
|
if (worker) {
|
||
|
canvas.__confetti_initialized = true;
|
||
|
}
|
||
|
|
||
|
function onResize() {
|
||
|
if (worker) {
|
||
|
// TODO this really shouldn't be immediate, because it is expensive
|
||
|
var obj = {
|
||
|
getBoundingClientRect: function () {
|
||
|
if (!isLibCanvas) {
|
||
|
return canvas.getBoundingClientRect();
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
resizer(obj);
|
||
|
|
||
|
worker.postMessage({
|
||
|
resize: {
|
||
|
width: obj.width,
|
||
|
height: obj.height
|
||
|
}
|
||
|
});
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
// don't actually query the size here, since this
|
||
|
// can execute frequently and rapidly
|
||
|
size.width = size.height = null;
|
||
|
}
|
||
|
|
||
|
function done() {
|
||
|
animationObj = null;
|
||
|
|
||
|
if (allowResize) {
|
||
|
global.removeEventListener('resize', onResize);
|
||
|
}
|
||
|
|
||
|
if (isLibCanvas && canvas) {
|
||
|
document.body.removeChild(canvas);
|
||
|
canvas = null;
|
||
|
initialized = false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (allowResize) {
|
||
|
global.addEventListener('resize', onResize, false);
|
||
|
}
|
||
|
|
||
|
if (worker) {
|
||
|
return worker.fire(options, size, done);
|
||
|
}
|
||
|
|
||
|
return fireLocal(options, size, done);
|
||
|
}
|
||
|
|
||
|
fire.reset = function () {
|
||
|
if (worker) {
|
||
|
worker.reset();
|
||
|
}
|
||
|
|
||
|
if (animationObj) {
|
||
|
animationObj.reset();
|
||
|
}
|
||
|
};
|
||
|
|
||
|
return fire;
|
||
|
}
|
||
|
|
||
|
// Make default export lazy to defer worker creation until called.
|
||
|
var defaultFire;
|
||
|
function getDefaultFire() {
|
||
|
if (!defaultFire) {
|
||
|
defaultFire = confettiCannon(null, { useWorker: true, resize: true });
|
||
|
}
|
||
|
return defaultFire;
|
||
|
}
|
||
|
|
||
|
module.exports = function() {
|
||
|
return getDefaultFire().apply(this, arguments);
|
||
|
};
|
||
|
module.exports.reset = function() {
|
||
|
getDefaultFire().reset();
|
||
|
};
|
||
|
module.exports.create = confettiCannon;
|
||
|
}((function () {
|
||
|
if (typeof window !== 'undefined') {
|
||
|
return window;
|
||
|
}
|
||
|
|
||
|
if (typeof self !== 'undefined') {
|
||
|
return self;
|
||
|
}
|
||
|
|
||
|
return this || {};
|
||
|
})(), module, false));
|