tsparticles/Updaters/Size/SizeUpdater.js

Easily create highly customizable particle, confetti and fireworks animations and use them as animated backgrounds for your website. Ready to use components available also for React, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Riot.js, Inferno.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SizeUpdater = void 0;
const Utils_1 = require("../../Utils");
function checkDestroy(particle, value, minValue, maxValue) {
    switch (particle.options.size.animation.destroy) {
        case "max":
            if (value >= maxValue) {
                particle.destroy();
            }
            break;
        case "min":
            if (value <= minValue) {
                particle.destroy();
            }
            break;
    }
}
function updateSize(particle, delta) {
    var _a, _b, _c, _d;
    const sizeVelocity = ((_a = particle.size.velocity) !== null && _a !== void 0 ? _a : 0) * delta.factor;
    const minValue = particle.size.min;
    const maxValue = particle.size.max;
    if (particle.destroyed ||
        !particle.size.enable ||
        (((_b = particle.size.maxLoops) !== null && _b !== void 0 ? _b : 0) > 0 && ((_c = particle.size.loops) !== null && _c !== void 0 ? _c : 0) > ((_d = particle.size.maxLoops) !== null && _d !== void 0 ? _d : 0))) {
        return;
    }
    switch (particle.size.status) {
        case 0:
            if (particle.size.value >= maxValue) {
                particle.size.status = 1;
                if (!particle.size.loops) {
                    particle.size.loops = 0;
                }
                particle.size.loops++;
            }
            else {
                particle.size.value += sizeVelocity;
            }
            break;
        case 1:
            if (particle.size.value <= minValue) {
                particle.size.status = 0;
                if (!particle.size.loops) {
                    particle.size.loops = 0;
                }
                particle.size.loops++;
            }
            else {
                particle.size.value -= sizeVelocity;
            }
    }
    checkDestroy(particle, particle.size.value, minValue, maxValue);
    if (!particle.destroyed) {
        particle.size.value = (0, Utils_1.clamp)(particle.size.value, minValue, maxValue);
    }
}
class SizeUpdater {
    init() {
    }
    isEnabled(particle) {
        var _a, _b, _c, _d;
        return (!particle.destroyed &&
            !particle.spawning &&
            particle.size.enable &&
            (((_a = particle.size.maxLoops) !== null && _a !== void 0 ? _a : 0) <= 0 ||
                (((_b = particle.size.maxLoops) !== null && _b !== void 0 ? _b : 0) > 0 && ((_c = particle.size.loops) !== null && _c !== void 0 ? _c : 0) < ((_d = particle.size.maxLoops) !== null && _d !== void 0 ? _d : 0))));
    }
    update(particle, delta) {
        if (!this.isEnabled(particle)) {
            return;
        }
        updateSize(particle, delta);
    }
}
exports.SizeUpdater = SizeUpdater;