@tsparticles/updater-life/browser/Utils.js

tsParticles particles life updater

import { getRangeValue, millisecondsToSeconds, randomInRange, setRangeValue, } from "@tsparticles/engine";
const noTime = 0, infiniteValue = -1, noLife = 0, minCanvasSize = 0;
export function updateLife(particle, delta, canvasSize) {
    if (!particle.life) {
        return;
    }
    const life = particle.life;
    let justSpawned = false;
    if (particle.spawning) {
        life.delayTime += delta.value;
        if (life.delayTime >= particle.life.delay) {
            justSpawned = true;
            particle.spawning = false;
            life.delayTime = noTime;
            life.time = noTime;
        }
        else {
            return;
        }
    }
    if (life.duration === infiniteValue) {
        return;
    }
    if (particle.spawning) {
        return;
    }
    if (justSpawned) {
        life.time = noTime;
    }
    else {
        life.time += delta.value;
    }
    if (life.time < life.duration) {
        return;
    }
    life.time = noTime;
    if (particle.life.count > noLife) {
        particle.life.count--;
    }
    if (particle.life.count === noLife) {
        particle.destroy();
        return;
    }
    const widthRange = setRangeValue(minCanvasSize, canvasSize.width), heightRange = setRangeValue(minCanvasSize, canvasSize.width);
    particle.position.x = randomInRange(widthRange);
    particle.position.y = randomInRange(heightRange);
    particle.spawning = true;
    life.delayTime = noTime;
    life.time = noTime;
    particle.reset();
    const lifeOptions = particle.options.life;
    if (lifeOptions) {
        life.delay = getRangeValue(lifeOptions.delay.value) * millisecondsToSeconds;
        life.duration = getRangeValue(lifeOptions.duration.value) * millisecondsToSeconds;
    }
}