@tsparticles/path-polygon/browser/PolygonPathGenerator.js

tsParticles polygon path

import { Vector, deepExtend, getRandom } from "@tsparticles/engine";
const defaultOptions = {
    sides: 6,
    turnSteps: 20,
    angle: 30,
};
export class PolygonPathGenerator {
    dirsList;
    options;
    #container;
    #res;
    constructor(container) {
        this.#container = container;
        this.#res = Vector.origin;
        this.dirsList = [];
        this.options = deepExtend({}, defaultOptions);
    }
    generate(p) {
        const { sides, turnSteps } = this.options;
        p.hexStep ??= 0;
        p.hexDirection ??= sides === 6 ? ((getRandom() * 3) | 0) * 2 : (getRandom() * sides) | 0;
        p.hexSpeed ??= p.velocity.length;
        if (p.hexStep % turnSteps === 0) {
            p.hexDirection = getRandom() > 0.5 ? (p.hexDirection + 1) % sides : (p.hexDirection + sides - 1) % sides;
        }
        p.velocity.x = 0;
        p.velocity.y = 0;
        p.hexStep++;
        const direction = this.dirsList[p.hexDirection];
        this.#res.x = direction.x * p.hexSpeed;
        this.#res.y = direction.y * p.hexSpeed;
        return this.#res;
    }
    init() {
        const container = this.#container, sourceOptions = container.actualOptions.particles.move.path.options;
        this.options.sides =
            sourceOptions["sides"] > 0 ? sourceOptions["sides"] : this.options.sides;
        this.options.angle = sourceOptions["angle"] ?? this.options.angle;
        this.options.turnSteps =
            sourceOptions["turnSteps"] >= 0 ? sourceOptions["turnSteps"] : this.options.turnSteps;
        this.#createDirs();
    }
    reset(particle) {
        delete particle.hexStep;
        delete particle.hexDirection;
        delete particle.hexSpeed;
    }
    update() {
    }
    #createDirs = () => {
        const options = this.options;
        this.dirsList = [];
        for (let i = 0; i < 360; i += 360 / options.sides) {
            const angle = options.angle + i;
            this.dirsList.push(Vector.create(Math.cos((angle * Math.PI) / 180), Math.sin((angle * Math.PI) / 180)));
        }
    };
}