Snowfall Effect

Snowfall animation with wind effect

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Snowfall Effect
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  Snowfall animation with wind effect
// @match        *://*/*
// @grant        none
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    const maxSnowflakes = 75;
    let snowflakeCount = 0;

    const style = document.createElement("style");
    style.innerHTML = `
        .snowflake {
            position: fixed;
            top: -50px;
            color: #FFF;
            font-size: 10px;
            opacity: 0.8;
            pointer-events: none;
            user-select: none;
            z-index: 9999;
        }
        @keyframes snowfall {
            to {
                transform: translateX(var(--wind)) translateY(100vh);
            }
        }
    `;
    document.head.appendChild(style);

    function createSnowflake() {
        if (snowflakeCount >= maxSnowflakes) return;
        const snowflake = document.createElement("div");
        snowflake.className = "snowflake";
        snowflake.innerHTML = "❄";
        snowflake.style.left = `${Math.random() * 100}vw`;
        snowflake.style.fontSize = `${Math.random() * 10 + 10}px`;
        snowflake.style.animation = `snowfall ${Math.random() * 3 + 5}s linear infinite`;
        snowflake.style.setProperty("--wind", `${Math.random() * 20 - 10}vw`);
        document.body.appendChild(snowflake);
        snowflakeCount++;

        snowflake.addEventListener("animationend", () => {
            snowflake.remove();
            snowflakeCount--;
        });
    }

    setInterval(createSnowflake, 200);
})();