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Easily create highly customizable particle, confetti and fireworks animations and use them as animated backgrounds for your website. Ready to use components available also for React, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Riot.js, Inferno.
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JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "../../Utils"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ColorUpdater = void 0;
const Utils_1 = require("../../Utils");
function updateColorValue(delta, value, valueAnimation, max, decrease) {
var _a;
const colorValue = value;
if (!colorValue || !valueAnimation.enable) {
return;
}
const offset = (0, Utils_1.randomInRange)(valueAnimation.offset);
const velocity = ((_a = value.velocity) !== null && _a !== void 0 ? _a : 0) * delta.factor + offset * 3.6;
if (!decrease || colorValue.status === 0) {
colorValue.value += velocity;
if (decrease && colorValue.value > max) {
colorValue.status = 1;
colorValue.value -= colorValue.value % max;
}
}
else {
colorValue.value -= velocity;
if (colorValue.value < 0) {
colorValue.status = 0;
colorValue.value += colorValue.value;
}
}
if (colorValue.value > max) {
colorValue.value %= max;
}
}
function updateColor(particle, delta) {
var _a, _b, _c;
const animationOptions = particle.options.color.animation;
if (((_a = particle.color) === null || _a === void 0 ? void 0 : _a.h) !== undefined) {
updateColorValue(delta, particle.color.h, animationOptions.h, 360, false);
}
if (((_b = particle.color) === null || _b === void 0 ? void 0 : _b.s) !== undefined) {
updateColorValue(delta, particle.color.s, animationOptions.s, 100, true);
}
if (((_c = particle.color) === null || _c === void 0 ? void 0 : _c.l) !== undefined) {
updateColorValue(delta, particle.color.l, animationOptions.l, 100, true);
}
}
class ColorUpdater {
constructor(container) {
this.container = container;
}
init(particle) {
const hslColor = (0, Utils_1.colorToHsl)(particle.options.color, particle.id, particle.options.reduceDuplicates);
if (hslColor) {
particle.color = (0, Utils_1.getHslAnimationFromHsl)(hslColor, particle.options.color.animation, this.container.retina.reduceFactor);
}
}
isEnabled(particle) {
var _a, _b, _c;
const animationOptions = particle.options.color.animation;
return (!particle.destroyed &&
!particle.spawning &&
((((_a = particle.color) === null || _a === void 0 ? void 0 : _a.h.value) !== undefined && animationOptions.h.enable) ||
(((_b = particle.color) === null || _b === void 0 ? void 0 : _b.s.value) !== undefined && animationOptions.s.enable) ||
(((_c = particle.color) === null || _c === void 0 ? void 0 : _c.l.value) !== undefined && animationOptions.l.enable)));
}
update(particle, delta) {
updateColor(particle, delta);
}
}
exports.ColorUpdater = ColorUpdater;
});