@tsparticles/interaction-particles-attract
Version:
tsParticles attract particles interaction
114 lines (107 loc) • 7.81 kB
JavaScript
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/* Particles Interaction v4.1.0 */
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@tsparticles/plugin-interactivity'), require('@tsparticles/engine')) :
typeof define === 'function' && define.amd ? define(['exports', '@tsparticles/plugin-interactivity', '@tsparticles/engine'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.__tsParticlesInternals = global.__tsParticlesInternals || {}, global.__tsParticlesInternals.interactions = global.__tsParticlesInternals.interactions || {}, global.__tsParticlesInternals.interactions.particlesAttract = global.__tsParticlesInternals.interactions.particlesAttract || {}), global.__tsParticlesInternals.plugins.interactivity, global.__tsParticlesInternals.engine));
})(this, (function (exports, pluginInteractivity, engine) { 'use strict';
class Attract {
distance;
enable;
rotate;
constructor() {
this.distance = 200;
this.enable = false;
this.rotate = {
x: 3000,
y: 3000,
};
}
load(data) {
if (engine.isNull(data)) {
return;
}
if (data.distance !== undefined) {
this.distance = engine.setRangeValue(data.distance);
}
if (data.enable !== undefined) {
this.enable = data.enable;
}
if (data.rotate) {
const rotateX = data.rotate.x;
if (rotateX !== undefined) {
this.rotate.x = rotateX;
}
const rotateY = data.rotate.y;
if (rotateY !== undefined) {
this.rotate.y = rotateY;
}
}
}
}
const attractFactor = 1000, identity = 1;
class Attractor extends pluginInteractivity.ParticlesInteractorBase {
#maxDistance;
constructor(container) {
super(container);
this.#maxDistance = 0;
}
get maxDistance() {
return this.#maxDistance;
}
clear() {
}
init() {
}
interact(p1) {
if (!p1.options.attract?.enable) {
return;
}
const container = this.container;
if (engine.isNull(p1.attractDistance)) {
const attractDistance = engine.getRangeValue(p1.options.attract.distance);
if (attractDistance > this.#maxDistance) {
this.#maxDistance = attractDistance;
}
p1.attractDistance = attractDistance * container.retina.pixelRatio;
}
const distance = p1.attractDistance, pos1 = p1.getPosition(), query = container.particles.grid.queryCircle(pos1, distance);
for (const p2 of query) {
if (p1 === p2 || !p2.options.attract?.enable || p2.destroyed || p2.spawning) {
continue;
}
const pos2 = p2.getPosition(), { dx, dy } = engine.getDistances(pos1, pos2), rotate = p1.options.attract.rotate, ax = dx / (rotate.x * attractFactor), ay = dy / (rotate.y * attractFactor), p1Factor = p2.size.value / p1.size.value, p2Factor = identity / p1Factor;
p1.velocity.x -= ax * p1Factor;
p1.velocity.y -= ay * p1Factor;
p2.velocity.x += ax * p2Factor;
p2.velocity.y += ay * p2Factor;
}
}
isEnabled(particle) {
return particle.options.attract?.enable ?? false;
}
loadParticlesOptions(options, ...sources) {
options.attract ??= new Attract();
for (const source of sources) {
options.attract.load(source?.attract);
}
}
reset() {
}
}
async function loadParticlesAttractInteraction(engine) {
engine.checkVersion("4.1.0");
await engine.pluginManager.register((e) => {
pluginInteractivity.ensureInteractivityPluginLoaded(e);
e.pluginManager.addInteractor?.("particlesAttract", container => {
return Promise.resolve(new Attractor(container));
});
});
}
const globalObject = globalThis;
globalObject.__tsParticlesInternals = globalObject.__tsParticlesInternals ?? {};
globalObject.loadParticlesAttractInteraction = loadParticlesAttractInteraction;
exports.loadParticlesAttractInteraction = loadParticlesAttractInteraction;
}));
Object.assign(globalThis.window || globalThis, { loadParticlesAttractInteraction: (globalThis.__tsParticlesInternals.interactions.particlesAttract || {}).loadParticlesAttractInteraction });
delete (globalThis.window || globalThis).tsparticlesInternalExports;