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Prevent zooming in on the map in GeoGuessr.
// ==UserScript==
// @name Geoguessr Spaceplonking
// @namespace https://greasyfork.org/en/users/your-name
// @version 1.0.0
// @description Prevent zooming in on the map in GeoGuessr.
// @author Your Name
// @license MIT
// @match https://www.geoguessr.com/*
// @run-at document-end
// @grant none
// @noframes
// @compatible chrome Latest
// @compatible firefox Latest
// @compatible edge Latest
// ==/UserScript==
(function () {
'use strict';
// Robust selector for hashed class names used by GeoGuessr for the small guess map.
// Example: <div class="game_guessMap__8jK3B">...</div>
var MAP_SELECTOR = '[class^="game_guessMap__"], [class*=" game_guessMap__"]';
// Utility: check if an event target is inside the guess map (supports Shadow DOM).
function isInsideGuessMap(target) {
while (target && target !== document && target !== window) {
if (target.matches && target.matches(MAP_SELECTOR)) return true;
// If inside a shadow root, hop to its host; otherwise walk up the DOM.
target = target.parentNode || target.host;
}
return false;
}
// Block scroll-wheel/trackpad zoom when the pointer is over the guess map.
function wheelBlocker(e) {
if (isInsideGuessMap(e.target)) {
e.preventDefault();
// Stop immediately so the map library never sees the event.
if (e.stopImmediatePropagation) e.stopImmediatePropagation();
return false;
}
}
// Block double-click zoom on the guess map (does not affect single-click to place pin).
function dblClickBlocker(e) {
if (isInsideGuessMap(e.target)) {
e.preventDefault();
if (e.stopImmediatePropagation) e.stopImmediatePropagation();
return false;
}
}
// Attach capture-phase, non-passive listeners so preventDefault works before the app handles events.
var opts = { capture: true, passive: false };
// Wheel/scroll zoom blockers (modern + legacy event names).
window.addEventListener('wheel', wheelBlocker, opts);
document.addEventListener('wheel', wheelBlocker, opts);
window.addEventListener('mousewheel', wheelBlocker, opts); // legacy
document.addEventListener('mousewheel', wheelBlocker, opts);
window.addEventListener('DOMMouseScroll', wheelBlocker, opts); // Firefox legacy
document.addEventListener('DOMMouseScroll', wheelBlocker, opts);
// Double-click zoom blocker.
window.addEventListener('dblclick', dblClickBlocker, opts);
document.addEventListener('dblclick', dblClickBlocker, opts);
// SPA safety: if GeoGuessr re-renders or navigates between rounds, these global listeners still apply.
// We keep a very light MutationObserver just in case the document root is hot-swapped.
if (window.MutationObserver) {
var observer = new MutationObserver(function () {
// No re-attachment needed; listeners are already global.
// This observer simply ensures the script stays active across heavy DOM changes.
});
observer.observe(document.documentElement, { childList: true, subtree: true });
}
// --- Changelog ---
// 1.0.0: Initial Greasy Fork release. Blocks wheel/trackpad zoom and double-click zoom over the guess map using capture-phase, non-passive listeners.
})();