tsparticles
Version:
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.
64 lines (63 loc) • 2.68 kB
JavaScript
import { colorToHsl, getHslAnimationFromHsl, randomInRange } from "../../Utils";
function updateColorValue(delta, value, valueAnimation, max, decrease) {
var _a;
const colorValue = value;
if (!colorValue || !valueAnimation.enable) {
return;
}
const offset = 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);
}
}
export class ColorUpdater {
constructor(container) {
this.container = container;
}
init(particle) {
const hslColor = colorToHsl(particle.options.color, particle.id, particle.options.reduceDuplicates);
if (hslColor) {
particle.color = 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);
}
}