/*

Toolbox Aid

David Quesenberry

03/23/2026

ParticleSystem.test.mjs

*/

import assert from 'node:assert/strict';

import { ParticleSystem } from '../../src/engine/fx/index.js';

function createSequenceRandom(values) {

let index = 0;

return () => {

const value = values[index % values.length];

index += 1;

return value;

};

}

export function run() {

const sequence = [0.1, 0.7, 0.25, 0.9, 0.4, 0.6, 0.2, 0.8, 0.3];

const first = new ParticleSystem({ random: createSequenceRandom(sequence) });

const second = new ParticleSystem({ random: createSequenceRandom(sequence) });

first.spawnExplosion({

x: 40,

y: 55,

count: 3,

speed: 140,

lifeSeconds: 1.1,

randomize: true,

shape: 'circle',

color: '#ffaa00',

});

second.spawnExplosion({

x: 40,

y: 55,

count: 3,

speed: 140,

lifeSeconds: 1.1,

randomize: true,

shape: 'circle',

color: '#ffaa00',

});

assert.deepEqual(first.getSnapshot(), second.getSnapshot());

const fallbackRandomSystem = new ParticleSystem({ random: 'invalid' });

fallbackRandomSystem.spawnExplosion({ x: 10, y: 20, count: 2, randomize: true });

assert.equal(fallbackRandomSystem.getSnapshot().length, 2);

}