@tsparticles/interaction-external-repulse
Version:
tsParticles repulse external interaction
171 lines (170 loc) • 9.51 kB
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", "@tsparticles/engine", "./Options/Classes/Repulse.js"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Repulser = void 0;
const engine_1 = require("@tsparticles/engine");
const Repulse_js_1 = require("./Options/Classes/Repulse.js");
const repulseMode = "repulse", minDistance = 0, repulseRadiusFactor = 6, repulseRadiusPower = 3, squarePower = 2, minRadius = 0, minSpeed = 0, easingOffset = 1, half = 0.5;
class Repulser extends engine_1.ExternalInteractorBase {
constructor(engine, container) {
super(container);
this._clickRepulse = () => {
const container = this.container, repulseOptions = container.actualOptions.interactivity.modes.repulse;
if (!repulseOptions) {
return;
}
const repulse = container.repulse ?? { particles: [] };
if (!repulse.finish) {
if (!repulse.count) {
repulse.count = 0;
}
repulse.count++;
if (repulse.count === container.particles.count) {
repulse.finish = true;
}
}
if (repulse.clicking) {
const repulseDistance = container.retina.repulseModeDistance;
if (!repulseDistance || repulseDistance < minDistance) {
return;
}
const repulseRadius = Math.pow(repulseDistance / repulseRadiusFactor, repulseRadiusPower), mouseClickPos = container.interactivity.mouse.clickPosition;
if (mouseClickPos === undefined) {
return;
}
const range = new engine_1.Circle(mouseClickPos.x, mouseClickPos.y, repulseRadius), query = container.particles.quadTree.query(range, p => this.isEnabled(p));
for (const particle of query) {
const { dx, dy, distance } = (0, engine_1.getDistances)(mouseClickPos, particle.position), d = distance ** squarePower, velocity = repulseOptions.speed, force = (-repulseRadius * velocity) / d;
if (d <= repulseRadius) {
repulse.particles.push(particle);
const vect = engine_1.Vector.create(dx, dy);
vect.length = force;
particle.velocity.setTo(vect);
}
}
}
else if (repulse.clicking === false) {
for (const particle of repulse.particles) {
particle.velocity.setTo(particle.initialVelocity);
}
repulse.particles = [];
}
};
this._hoverRepulse = () => {
const container = this.container, mousePos = container.interactivity.mouse.position, repulseRadius = container.retina.repulseModeDistance;
if (!repulseRadius || repulseRadius < minRadius || !mousePos) {
return;
}
this._processRepulse(mousePos, repulseRadius, new engine_1.Circle(mousePos.x, mousePos.y, repulseRadius));
};
this._processRepulse = (position, repulseRadius, area, divRepulse) => {
const container = this.container, query = container.particles.quadTree.query(area, p => this.isEnabled(p)), repulseOptions = container.actualOptions.interactivity.modes.repulse;
if (!repulseOptions) {
return;
}
const { easing, speed, factor, maxSpeed } = repulseOptions, easingFunc = this._engine.getEasing(easing), velocity = (divRepulse?.speed ?? speed) * factor;
for (const particle of query) {
const { dx, dy, distance } = (0, engine_1.getDistances)(particle.position, position), repulseFactor = (0, engine_1.clamp)(easingFunc(easingOffset - distance / repulseRadius) * velocity, minSpeed, maxSpeed), normVec = engine_1.Vector.create(!distance ? velocity : (dx / distance) * repulseFactor, !distance ? velocity : (dy / distance) * repulseFactor);
particle.position.addTo(normVec);
}
};
this._singleSelectorRepulse = (selector, div) => {
const container = this.container, repulse = container.actualOptions.interactivity.modes.repulse;
if (!repulse) {
return;
}
const query = document.querySelectorAll(selector);
if (!query.length) {
return;
}
query.forEach(item => {
const elem = item, pxRatio = container.retina.pixelRatio, pos = {
x: (elem.offsetLeft + elem.offsetWidth * half) * pxRatio,
y: (elem.offsetTop + elem.offsetHeight * half) * pxRatio,
}, repulseRadius = elem.offsetWidth * half * pxRatio, area = div.type === engine_1.DivType.circle
? new engine_1.Circle(pos.x, pos.y, repulseRadius)
: new engine_1.Rectangle(elem.offsetLeft * pxRatio, elem.offsetTop * pxRatio, elem.offsetWidth * pxRatio, elem.offsetHeight * pxRatio), divs = repulse.divs, divRepulse = (0, engine_1.divMode)(divs, elem);
this._processRepulse(pos, repulseRadius, area, divRepulse);
});
};
this._engine = engine;
if (!container.repulse) {
container.repulse = { particles: [] };
}
this.handleClickMode = (mode) => {
const options = this.container.actualOptions, repulseOpts = options.interactivity.modes.repulse;
if (!repulseOpts || mode !== repulseMode) {
return;
}
if (!container.repulse) {
container.repulse = { particles: [] };
}
const repulse = container.repulse;
repulse.clicking = true;
repulse.count = 0;
for (const particle of container.repulse.particles) {
if (!this.isEnabled(particle)) {
continue;
}
particle.velocity.setTo(particle.initialVelocity);
}
repulse.particles = [];
repulse.finish = false;
setTimeout(() => {
if (container.destroyed) {
return;
}
repulse.clicking = false;
}, repulseOpts.duration * engine_1.millisecondsToSeconds);
};
}
clear() {
}
init() {
const container = this.container, repulse = container.actualOptions.interactivity.modes.repulse;
if (!repulse) {
return;
}
container.retina.repulseModeDistance = repulse.distance * container.retina.pixelRatio;
}
interact() {
const container = this.container, options = container.actualOptions, mouseMoveStatus = container.interactivity.status === engine_1.mouseMoveEvent, events = options.interactivity.events, hover = events.onHover, hoverEnabled = hover.enable, hoverMode = hover.mode, click = events.onClick, clickEnabled = click.enable, clickMode = click.mode, divs = events.onDiv;
if (mouseMoveStatus && hoverEnabled && (0, engine_1.isInArray)(repulseMode, hoverMode)) {
this._hoverRepulse();
}
else if (clickEnabled && (0, engine_1.isInArray)(repulseMode, clickMode)) {
this._clickRepulse();
}
else {
(0, engine_1.divModeExecute)(repulseMode, divs, (selector, div) => this._singleSelectorRepulse(selector, div));
}
}
isEnabled(particle) {
const container = this.container, options = container.actualOptions, mouse = container.interactivity.mouse, events = (particle?.interactivity ?? options.interactivity).events, divs = events.onDiv, hover = events.onHover, click = events.onClick, divRepulse = (0, engine_1.isDivModeEnabled)(repulseMode, divs);
if (!(divRepulse || (hover.enable && !!mouse.position) || (click.enable && mouse.clickPosition))) {
return false;
}
const hoverMode = hover.mode, clickMode = click.mode;
return (0, engine_1.isInArray)(repulseMode, hoverMode) || (0, engine_1.isInArray)(repulseMode, clickMode) || divRepulse;
}
loadModeOptions(options, ...sources) {
if (!options.repulse) {
options.repulse = new Repulse_js_1.Repulse();
}
for (const source of sources) {
options.repulse.load(source?.repulse);
}
}
reset() {
}
}
exports.Repulser = Repulser;
});