键盘邦邦

嘤嘤嘤
安裝腳本 ?
Wrap lines
// ==UserScript==
// @name         键盘邦邦
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  嘤嘤嘤
// @author       flaribbit
// @match        https://bangplayer.live/*
// @grant        none
// ==/UserScript==
 
(function () {
    'use strict';
 
    var skeys = "zxcvbnm";
    var keys = {};
    var keydown = {};
    for (var i = 0; i < 7; i++) {
        keys[skeys[i]] = i - 3;
        keydown[skeys[i]] = false;
    }
 
    function getKeyPos(key) {
        var gamecanvas = document.querySelector("#game");
        var keyposy = 0;
        var width = gamecanvas.height * 16 / 9;
        if (width > gamecanvas.width) {
            //太高了
            width = gamecanvas.width;
            keyposy = 0.5 * gamecanvas.height + 0.38 * width * 9 / 16;
        } else {
            //太宽了
            keyposy = gamecanvas.height * 0.88;
        }
        width /= 8.4;
        return { clientX: Math.round(gamecanvas.width / 2 + width * keys[key]), clientY: keyposy }
    }
    document.onkeydown = function (e) {
        if (e.key in keys) {
            if (keydown[e.key] == false) {
                document.querySelector("#game").dispatchEvent(new PointerEvent("pointerdown", getKeyPos(e.key)));
                console.log("按下", e.key);
            }
            keydown[e.key] = true;
        }
    }
    document.onkeyup = function (e) {
        if (e.key in keys) {
            document.querySelector("#game").dispatchEvent(new PointerEvent("pointerup", getKeyPos(e.key)));
            console.log("松开", e.key);
            keydown[e.key] = false;
        }
    }
})();
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