88 lines
3.3 KiB
JavaScript
88 lines
3.3 KiB
JavaScript
import { clamp, getRandom } from "tsparticles-engine";
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function checkDestroy(particle, value, minValue, maxValue) {
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switch (particle.options.size.animation.destroy) {
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case "max":
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if (value >= maxValue) {
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particle.destroy();
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}
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break;
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case "min":
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if (value <= minValue) {
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particle.destroy();
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}
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break;
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}
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}
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function updateSize(particle, delta) {
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var _a, _b, _c, _d, _e;
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const sizeVelocity = ((_a = particle.size.velocity) !== null && _a !== void 0 ? _a : 0) * delta.factor, minValue = particle.size.min, maxValue = particle.size.max, decay = (_b = particle.size.decay) !== null && _b !== void 0 ? _b : 1;
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if (particle.destroyed ||
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!particle.size.enable ||
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(((_c = particle.size.maxLoops) !== null && _c !== void 0 ? _c : 0) > 0 && ((_d = particle.size.loops) !== null && _d !== void 0 ? _d : 0) > ((_e = particle.size.maxLoops) !== null && _e !== void 0 ? _e : 0))) {
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return;
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}
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switch (particle.size.status) {
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case "increasing":
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if (particle.size.value >= maxValue) {
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particle.size.status = "decreasing";
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if (!particle.size.loops) {
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particle.size.loops = 0;
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}
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particle.size.loops++;
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}
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else {
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particle.size.value += sizeVelocity;
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}
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break;
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case "decreasing":
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if (particle.size.value <= minValue) {
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particle.size.status = "increasing";
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if (!particle.size.loops) {
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particle.size.loops = 0;
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}
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particle.size.loops++;
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}
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else {
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particle.size.value -= sizeVelocity;
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}
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}
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if (particle.size.velocity && decay !== 1) {
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particle.size.velocity *= decay;
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}
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checkDestroy(particle, particle.size.value, minValue, maxValue);
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if (!particle.destroyed) {
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particle.size.value = clamp(particle.size.value, minValue, maxValue);
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}
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}
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export class SizeUpdater {
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init(particle) {
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var _a;
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const container = particle.container, sizeOptions = particle.options.size, sizeAnimation = sizeOptions.animation;
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if (sizeAnimation.enable) {
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particle.size.velocity =
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(((_a = particle.retina.sizeAnimationSpeed) !== null && _a !== void 0 ? _a : container.retina.sizeAnimationSpeed) / 100) *
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container.retina.reduceFactor;
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if (!sizeAnimation.sync) {
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particle.size.velocity *= getRandom();
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}
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}
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}
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isEnabled(particle) {
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var _a, _b, _c, _d;
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return (!particle.destroyed &&
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!particle.spawning &&
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particle.size.enable &&
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(((_a = particle.size.maxLoops) !== null && _a !== void 0 ? _a : 0) <= 0 ||
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(((_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))));
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}
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reset(particle) {
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particle.size.loops = 0;
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}
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update(particle, delta) {
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if (!this.isEnabled(particle)) {
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return;
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}
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updateSize(particle, delta);
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}
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}
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