Starblast Gem Drop

Draggable button, hold to drop gems automatically
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// ==UserScript==
// @name         Starblast Gem Drop
// @namespace    starblast-ios
// @version      2.0
// @description  Draggable button, hold to drop gems automatically
// @match        https://starblast.io/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    const btn = document.createElement("div");
    btn.innerText = "💎 DROP";
    btn.style.position = "fixed";
    btn.style.left = "20px";
    btn.style.top = "50%";
    btn.style.transform = "translateY(-50%)";
    btn.style.background = "linear-gradient(145deg, #ffcc33, #ff9900)";
    btn.style.color = "white";
    btn.style.padding = "15px 20px";
    btn.style.borderRadius = "15px";
    btn.style.fontSize = "16px";
    btn.style.fontWeight = "bold";
    btn.style.zIndex = "9999";
    btn.style.userSelect = "none";
    btn.style.touchAction = "none";
    btn.style.boxShadow = "0 4px 15px rgba(0,0,0,0.4)";
    btn.style.textAlign = "center";
    btn.style.cursor = "grab";

    document.body.appendChild(btn);

    let dropping = false;

    function dropGem() {
        const down = new KeyboardEvent("keydown", {
            key: "v",
            code: "KeyV",
            keyCode: 86,
            which: 86,
            bubbles: true
        });
        const up = new KeyboardEvent("keyup", {
            key: "v",
            code: "KeyV",
            keyCode: 86,
            which: 86,
            bubbles: true
        });
        document.dispatchEvent(down);
        setTimeout(() => document.dispatchEvent(up), 750);
    }

    // Hold to keep dropping
    let dropInterval;
    btn.addEventListener("touchstart", (e) => {
        e.preventDefault();
        dropping = true;
        dropGem();
        dropInterval = setInterval(() => {
            if(dropping) dropGem();
        }, 800);
    });

    btn.addEventListener("touchend", () => {
        dropping = false;
        clearInterval(dropInterval);
    });

    // Draggable
    let offsetX = 0, offsetY = 0, isDragging = false;

    btn.addEventListener("touchmove", (e) => {
        e.preventDefault();
        const touch = e.touches[0];
        if(isDragging){
            btn.style.left = (touch.clientX - offsetX) + "px";
            btn.style.top = (touch.clientY - offsetY) + "px";
        }
    });

    btn.addEventListener("touchstart", (e) => {
        if(e.target === btn && !dropping){
            isDragging = true;
            const touch = e.touches[0];
            offsetX = touch.clientX - btn.getBoundingClientRect().left;
            offsetY = touch.clientY - btn.getBoundingClientRect().top;
        }
    });

    btn.addEventListener("touchend", () => {
        isDragging = false;
    });

})();