Keystroke Overlay (Customizable)

WASD HUD for SmashKarts.io

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Keystroke Overlay (Customizable)
// @namespace    http://tampermonkey.net/
// @version      1.3
// @description  WASD HUD for SmashKarts.io
// @author       Raiyan
// @match        https://smashkarts.io/*
// @icon         https://raw.githubusercontent.com/elitegamersk/elitegamersk/main/exe.png
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // default configuration
    const defaultConfig = {
        hud: {
            backgroundColor: 'rgba(0,0,0,0.6)', // HUD panel background color & opacity
            textColor: 'white', // default key text color
            borderColor: 'white', // key box border color
            borderRadius: '5px', // key box corner roundness
            padding: '10px 15px', // key box padding (size)
            spacebarWidth: '120px', // width of the Spacebar key box
            scale: 1 // default HUD scale
        },
        keyPress: {
            background: 'rgba(255,255,255,0.9)', // background when key is pressed
            textColor: 'black', // text color when key is pressed
            glow: '0 0 8px rgba(255,255,255,0.8)' // glow effect when pressed
        },
        keys: { // default labels
            w: 'W', // labels w
            a: 'A', // labels a
            s: 'S', // labels s
            d: 'D', // labels d
            space: 'Space' // labels Spacebar
        },
        position: { // saved position and scale
            x: 20,
            y: 140,
            scale: 1
        }
    };

    // load saved settings from localStorage
    const savedConfig = JSON.parse(localStorage.getItem("keystrokeOverlayConfig") || "{}");
    const config = mergeDeep(defaultConfig, savedConfig);

    // HUD setup
    const overlay = document.createElement('div');
    overlay.style.position = 'fixed';
    overlay.style.top = config.position.y + 'px';
    overlay.style.left = config.position.x + 'px';
    overlay.style.background = config.hud.backgroundColor;
    overlay.style.color = config.hud.textColor;
    overlay.style.padding = config.hud.padding;
    overlay.style.borderRadius = config.hud.borderRadius;
    overlay.style.zIndex = 999999;
    overlay.style.userSelect = 'none';
    overlay.style.cursor = 'grab';
    overlay.style.fontFamily = 'Arial, sans-serif';
    overlay.style.textAlign = 'center';
    overlay.style.transform = `scale(${config.position.scale})`;

    const row1 = document.createElement('div'); // W row
    const row2 = document.createElement('div'); // A S D row
    const row3 = document.createElement('div'); // Space row
    overlay.appendChild(row1);
    overlay.appendChild(row2);
    overlay.appendChild(row3);

    const keys = {
        w: {label: config.keys.w, row: row1, linked:['w','arrowup']},
        a: {label: config.keys.a, row: row2, linked:['a','arrowleft']},
        s: {label: config.keys.s, row: row2, linked:['s','arrowdown']},
        d: {label: config.keys.d, row: row2, linked:['d','arrowright']},
        space: {label: config.keys.space, row: row3, linked:[' ']}
    };

    const keyElems = {};
    Object.keys(keys).forEach(k => {
        const el = document.createElement('div');
        el.innerText = keys[k].label;
        el.style.display = 'inline-block';
        el.style.margin = '3px';
        el.style.padding = config.hud.padding;
        el.style.border = `2px solid ${config.hud.borderColor}`;
        el.style.borderRadius = config.hud.borderRadius;
        el.style.transition = 'all 0.1s ease';

        if (k === 'space') {
            el.style.minWidth = config.hud.spacebarWidth;
            el.style.textAlign = 'center';
        }

        keys[k].row.appendChild(el);
        keyElems[k] = el;
    });

    document.body.appendChild(overlay);

    // key tracking and glow
    const pressed = new Set();
    document.addEventListener('keydown', e => pressed.add(e.key.toLowerCase()));
    document.addEventListener('keyup', e => pressed.delete(e.key.toLowerCase()));

    function updateKeys() {
        Object.keys(keys).forEach(k => {
            const active = keys[k].linked.some(code => pressed.has(code));
            if (active) {
                keyElems[k].style.background = config.keyPress.background;
                keyElems[k].style.color = config.keyPress.textColor;
                keyElems[k].style.boxShadow = config.keyPress.glow;
            } else {
                keyElems[k].style.background = 'transparent';
                keyElems[k].style.color = config.hud.textColor;
                keyElems[k].style.boxShadow = 'none';
            }
        });
        requestAnimationFrame(updateKeys);
    }
    updateKeys();

    // dragging and saving position
    let isDragging = false, offsetX = 0, offsetY = 0;
    overlay.addEventListener('mousedown', e => {
        isDragging = true;
        overlay.style.cursor = 'grabbing';
        offsetX = e.clientX - overlay.getBoundingClientRect().left;
        offsetY = e.clientY - overlay.getBoundingClientRect().top;
    });
    document.addEventListener('mousemove', e => {
        if(isDragging){
            const newX = e.clientX - offsetX;
            const newY = e.clientY - offsetY;
            overlay.style.left = newX + 'px';
            overlay.style.top = newY + 'px';
            saveSettings(newX, newY, getScale()); // save on drag
        }
    });
    document.addEventListener('mouseup', () => {
        isDragging = false;
        overlay.style.cursor = 'grab';
    });

    // resize with wheel and save
    overlay.addEventListener('wheel', e => {
        e.preventDefault();
        let newScale = getScale() + (e.deltaY < 0 ? 0.1 : -0.1);
        newScale = Math.min(Math.max(newScale, 0.5), 3);
        overlay.style.transform = `scale(${newScale})`;
        const rect = overlay.getBoundingClientRect();
        saveSettings(rect.left, rect.top, newScale);
    });

    // helpers
    function getScale() {
        return parseFloat(overlay.style.transform.replace(/scale\((.*)\)/,'$1')) || 1;
    }

    function saveSettings(x, y, scale) {
        const saved = JSON.parse(localStorage.getItem("keystrokeOverlayConfig") || "{}");
        saved.position = {x, y, scale};
        localStorage.setItem("keystrokeOverlayConfig", JSON.stringify(saved));
    }

    // deep merge for defaults and saved settings
    function mergeDeep(target, source) {
        const output = {...target};
        if (isObject(target) && isObject(source)) {
            Object.keys(source).forEach(key => {
                if (isObject(source[key])) {
                    if (!(key in target)) Object.assign(output, {[key]: source[key]});
                    else output[key] = mergeDeep(target[key], source[key]);
                } else {
                    output[key] = source[key];
                }
            });
        }
        return output;
    }

    function isObject(item) {
        return (item && typeof item === 'object' && !Array.isArray(item));
    }

})();