Create physics-based effects

gsap.registerPlugin(Draggable, InertiaPlugin, Physics2DPlugin);

// Elements & config
const emitter = document.getElementById("emitter");
// we'll put all the dots into this container so we can move the "explosion" anywhere
const container = document.createElement("div");

// Tweakables
const emitterSize = 100;
const dotQuantity = 25;
const dotSizeMax = 20;
const dotSizeMin = 10;
const speed = 3;
const gravity = 3;

// Setup the container
container.style.cssText = "position:absolute; left:0; top:0; overflow:visible; z-index:5000; pointer-events:none;";
document.body.appendChild(container);

// Build the explosion timeline once (reuse for performance)
const explosion = createExplosion(container);

function createExplosion(container) {
 const tl = gsap.timeline();
 for (let i = 0; i < dotQuantity; i++) {
 const dot = document.createElement("div");
 dot.className = "dot";
 const size = gsap.utils.random(dotSizeMin, dotSizeMax, 1);
 container.appendChild(dot);

 const angle = Math.random() * Math.PI * 2; // radians
 const length = Math.random() * (emitterSize / 2 - size / 2);

 // Place dot within emitter and size it
 gsap.set(dot, {
 x: Math.cos(angle) * length,
 y: Math.sin(angle) * length,
 width: size,
 height: size,
 xPercent: -50,
 yPercent: -50,
 force3D: true
 });

 // Animate via Physics2D (GSAP plugin)
 tl.to(
 dot,
 {
 physics2D: {
 angle: (angle * 180) / Math.PI,
 velocity: (100 + Math.random() * 250) * speed,
 gravity: 500 * gravity
 },
 duration: 1 + Math.random()
 },
 0
 ).to(
 dot,
 {
 opacity: 0,
 duration: 0.2,
 ease: "power2.inOut"
 },
 0.7
 );

 // If you'd rather not do physics, you can swap the physics2D block for:
 // { x: Math.cos(angle) * length * 6, y: Math.sin(angle) * length * 6, duration: 1 + Math.random() }
 }
 return tl;
}

// Move the container to the center of an element and play the explosion
function explode(element) {
 const bounds = element.getBoundingClientRect();
 gsap.set(container, { x: bounds.left + bounds.width / 2, y: bounds.top + bounds.height / 2 });
 explosion.play(0);
}

// Go boom on load and on click
explode(emitter);
emitter.addEventListener("click", () => explode(emitter));

// Make the emitter draggable (requires InertiaPlugin for inertia:true)
Draggable.create("#emitter", {
 inertia: true,
 bounds: window,
 edgeResistance: 0.7
});

/* StyleGallery host styles: independent replacement for unavailable shared Pen CSS. */
:root{--color-just-black:#111522;--color-surface-white:#f7f3ec;--color-surface75:#cfccc6;--color-surface50:#898e9f;--color-surface25:#414859;--color-shockingly-green:#95efd2;--color-lt-green:#b5f4da;--color-pink:#fbadce;--color-purple:#897dff;--color-lilac:#b5a1ff;--color-orangey:#ffd28c;--color-blue:#75d8ed;--color-ui-gradient:linear-gradient(135deg,#fbadce,#897dff);--light:#f7f3ec;--dark:#111522;--mid:#898e9f}
*{box-sizing:border-box}body{background:#111522;color:#f7f3ec;font-family:system-ui,sans-serif;margin:0;min-height:100vh;width:100%}button,input{font:inherit}button,.button{background:#111522;border:1px solid #898e9f;border-radius:.55rem;color:#f7f3ec;cursor:pointer;padding:.65rem 1rem}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #95efd2;outline-offset:4px}h1,h2,h3,h4{line-height:1.15}h4{font-weight:500}code{font-family:ui-monospace,monospace}.heading-l{font-size:clamp(2rem,6vw,5rem)}.heading-text{font-size:clamp(1.5rem,4vw,3rem)}.box{background:#95efd2;border-radius:14px;height:clamp(38px,12vw,80px);width:clamp(38px,12vw,80px)}.green{background:#95efd2}.purple{background:#897dff}.orange{background:#ffd28c}.gradient-pink{background:linear-gradient(140deg,#fbadce,#fc7f8e)}.gradient-purple{background:linear-gradient(140deg,#b5a1ff,#537ff7)}.center{align-items:center;display:flex;justify-content:center}.text-center{text-align:center}.panel{min-height:100vh;width:100%}.flair:not(img){background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNDgiIGhlaWdodD0iMjQ4IiB2aWV3Qm94PSIwIDAgMjQ4IDI0OCI+PGRlZnM+PGxpbmVhckdyYWRpZW50IGlkPSJnIiB4Mj0iMSIgeTI9IjEiPjxzdG9wIHN0b3AtY29sb3I9IiNiNWExZmYiLz48c3RvcCBvZmZzZXQ9IjEiIHN0b3AtY29sb3I9IiM3NWQ4ZWQiLz48L2xpbmVhckdyYWRpZW50PjwvZGVmcz48ZyBmaWxsPSJ1cmwoI2cpIj48cGF0aCBkPSJNODcgMjBoNzR2NjdoNjd2NzRoLTY3djY3SDg3di02N0gyMFY4N2g2N1oiLz48L2c+PC9zdmc+");background-position:center;background-repeat:no-repeat;background-size:contain;height:80px;width:80px}.flair--3:not(img){background-image:url("data:image/svg+xml;base64,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")}.braces{font-size:1rem}img{max-width:100%}
/* External font programs are omitted; preserve readable fallback typography. */
body,button,input,h1,h2,h3,h4,p,span,div{font-family:inherit}body{font-family:system-ui,sans-serif}code,pre{font-family:ui-monospace,monospace}

window.__STYLEGALLERY_ASSETS__={};
gsap.registerPlugin(Draggable, InertiaPlugin, Physics2DPlugin);
const emitter = document.getElementById("emitter");
const container = document.createElement("div");
const emitterSize = 100;
const dotQuantity = 25;
const dotSizeMax = 20;
const dotSizeMin = 10;
const speed = 3;
const gravity = 3;
container.style.cssText = "position:absolute; left:0; top:0; overflow:visible; z-index:5000; pointer-events:none;";
document.body.appendChild(container);
const explosion = createExplosion(container);
function createExplosion(container2) {
  const tl = gsap.timeline();
  for (let i = 0; i < dotQuantity; i++) {
    const dot = document.createElement("div");
    dot.className = "dot";
    const size = gsap.utils.random(dotSizeMin, dotSizeMax, 1);
    container2.appendChild(dot);
    const angle = Math.random() * Math.PI * 2;
    const length = Math.random() * (emitterSize / 2 - size / 2);
    gsap.set(dot, {
      x: Math.cos(angle) * length,
      y: Math.sin(angle) * length,
      width: size,
      height: size,
      xPercent: -50,
      yPercent: -50,
      force3D: true
    });
    tl.to(
      dot,
      {
        physics2D: {
          angle: angle * 180 / Math.PI,
          velocity: (100 + Math.random() * 250) * speed,
          gravity: 500 * gravity
        },
        duration: 1 + Math.random()
      },
      0
    ).to(
      dot,
      {
        opacity: 0,
        duration: 0.2,
        ease: "power2.inOut"
      },
      0.7
    );
  }
  return tl;
}
function explode(element) {
  const bounds = element.getBoundingClientRect();
  gsap.set(container, { x: bounds.left + bounds.width / 2, y: bounds.top + bounds.height / 2 });
  explosion.play(0);
}
explode(emitter);
emitter.addEventListener("click", () => explode(emitter));
Draggable.create("#emitter", {
  inertia: true,
  bounds: window,
  edgeResistance: 0.7
});

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GSAP 3.15.0
Copyright 2026, GreenSock. All rights reserved.
Subject to the Standard No Charge License: https://gsap.com/standard-license.
The full notice in each original GSAP library file is preserved.


StyleGallery host adapter and replacement SVG subjects: locally authored.