Multiplayer Piano Optimizations [Emotes]

Display emoticons and colors in chat!

当前为 2025-07-27 提交的版本,查看 最新版本

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

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

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         Multiplayer Piano Optimizations [Emotes]
// @namespace    https://tampermonkey.net/
// @version      1.4.2
// @description  Display emoticons and colors in chat!
// @author       zackiboiz, ccjit
// @match        *://multiplayerpiano.com/*
// @match        *://multiplayerpiano.net/*
// @match        *://multiplayerpiano.org/*
// @match        *://piano.mpp.community/*
// @match        *://mpp.7458.space/*
// @match        *://qmppv2.qwerty0301.repl.co/*
// @match        *://mpp.8448.space/*
// @match        *://mpp.autoplayer.xyz/*
// @match        *://mpp.hyye.xyz/*
// @grant        GM_info
// @license      MIT
// ==/UserScript==

(async () => {
    const dl = GM_info.script.downloadURL || GM_info.script.updateURL || GM_info.script.homepageURL || "";
    const match = dl.match(/greasyfork\.org\/scripts\/(\d+)/);
    if (!match) {
        console.warn("Could not find Greasy Fork script ID in downloadURL/updateURL/homepageURL:", dl);
    } else {
        const scriptId = match[1];
        const localVersion = GM_info.script.version;
        const apiUrl = `https://greasyfork.org/scripts/${scriptId}.json`;

        fetch(apiUrl, {
            mode: "cors",
            headers: {
                Accept: "application/json"
            }
        }).then(r => {
            if (!r.ok) throw new Error("Failed to fetch Greasy Fork data.");
            return r.json();
        }).then(data => {
            const remoteVersion = data.version;
            if (compareVersions(localVersion, remoteVersion) < 0) {
                if (confirm(
                    `A new version of this script is available!\n` +
                    `Local: ${localVersion}\n` +
                    `Latest: ${remoteVersion}\n\n` +
                    `Open Greasy Fork to update?`
                )) {
                    window.open(`https://greasyfork.org/scripts/${scriptId}`, "_blank");
                }
            }
        }).catch(err => console.error("Update check failed:", err));
    }

    function compareVersions(a, b) {
        const pa = a.split(".").map(n => parseInt(n, 10) || 0);
        const pb = b.split(".").map(n => parseInt(n, 10) || 0);
        const len = Math.max(pa.length, pb.length);
        for (let i = 0; i < len; i++) {
            if ((pa[i] || 0) < (pb[i] || 0)) return -1;
            if ((pa[i] || 0) > (pb[i] || 0)) return 1;
        }
        return 0;
    }

    function sleep(ms) {
        return new Promise(resolve => setTimeout(resolve, ms));
    }

    await sleep(1000);
    const BASE_URL = "https://raw.githubusercontent.com/ZackiBoiz/Multiplayer-Piano-Optimizations/refs/heads/main";
    const OLD_RGB_PREFIX = 0x0D9E;

    class EmotesManager {
        constructor(version, baseUrl) {
            this.version = version;
            this.baseUrl = baseUrl;
            this.emotes = {};
            this.emoteUrls = {};
            this.tokenRegex = null;

            this.MAX_SUGGESTIONS = 100;
            this.DROPDOWN_OFFSET_PX = 10;

            this.dropdown = document.createElement("div");
            this.dropdown.id = "emote-suggestions";
            Object.assign(this.dropdown.style, {
                position: "absolute",
                backgroundColor: "#3c3c3c",
                border: "1px solid #555",
                borderRadius: "8px",
                boxShadow: "0 4px 6px rgba(0,0,0,0.3)",
                zIndex: "9999",
                maxHeight: "200px",
                overflowY: "auto",
                display: "none",
                fontFamily: "Ubuntu, Arial",
                color: "#ffffff",
                fontSize: "0.75rem"
            });
            document.body.appendChild(this.dropdown);

            const style = document.createElement("style");
            style.textContent = `
                #emote-suggestions .dropdown-item:hover {
                    background-color: #4c4c4c;
                }
            `;
            document.head.appendChild(style);
        }

        async init() {
            try {
                await this._loadEmotesMeta();
                await this._preloadEmotes();
                this._buildTokenRegex();
                this._initChatObserver();
                this._replaceExistingMessages();
                this._initSuggestionListeners();
            } catch (err) {
                console.error("EmotesManager failed:", err);
            }
        }

        async _loadEmotesMeta() {
            const res = await fetch(`${this.baseUrl}/emotes/meta.json?_=${Date.now()}`);
            if (!res.ok) {
                throw new Error(`Failed to load emote metadata: ${res.status}`);
            }
            const data = await res.json();
            if (typeof data !== "object" || Array.isArray(data)) {
                throw new Error("Unexpected emote metadata shape");
            }
            this.emotes = data;
        }

        async _preloadEmotes() {
            await Promise.all(
                Object.entries(this.emotes).map(async ([key, ext]) => {
                    try {
                        const resp = await fetch(`${this.baseUrl}/emotes/assets/${key}.${ext}?_=${Date.now()}`);
                        const blob = await resp.blob();
                        this.emoteUrls[key] = URL.createObjectURL(blob);
                    } catch (e) {
                        console.warn(`Could not preload emote "${key}":`, e);
                    }
                })
            );
        }

        _buildTokenRegex() {
            const tokens = Object.keys(this.emotes)
                .map(t => t.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"))
                .sort((a, b) => b.length - a.length);
            this.tokenRegex = new RegExp(`:(${tokens.join("|")}):`, "g");
        }

        _initChatObserver() {
            const chatList = document.querySelector("#chat > ul");
            if (!chatList) return;
            const observer = new MutationObserver(mutations => {
                observer.disconnect();
                mutations.forEach(m => m.addedNodes.forEach(node => {
                    if (node.nodeType === 1 && node.tagName === "LI") {
                        const msgEl = node.querySelector(".message");
                        this._replaceEmotesInElement(msgEl);
                        if (chatList.scrollHeight - chatList.scrollTop - chatList.clientHeight < 30) {
                            chatList.scrollTop = chatList.scrollHeight;
                        }
                    }
                }));
                observer.observe(chatList, { childList: true });
            });
            observer.observe(chatList, { childList: true });
        }

        _replaceExistingMessages() {
            document.querySelectorAll("#chat > ul li .message").forEach(el => this._replaceEmotesInElement(el));
        }

        _replaceEmotesInElement(el) {
            if (!el) return;
            const walk = node => {
                if (node.nodeType === Node.TEXT_NODE) {
                    const frag = this._processTextSegment(node.textContent);
                    node.replaceWith(frag);
                } else if (node.nodeType === Node.ELEMENT_NODE) {
                    Array.from(node.childNodes).forEach(walk);
                }
            };
            walk(el);
        }

        _processTextSegment(rawText) {
            const frag = document.createDocumentFragment();

            const segments = rawText
                .replace(/((?<!\\)(?:\\\\)*)(?:\\n){2,}/g, "$1\\n")
                .split(/(?<!\\)(?:\\\\)*\\n/)
                .map(s => s.replace(/\\\\n/g, "\\n"));

            for (let segIdx = 0; segIdx < segments.length; segIdx++) {
                const seg = segments[segIdx];
                let buffer = "";
                let i = 0;

                const flushBuffer = () => {
                    if (buffer) {
                        frag.appendChild(document.createTextNode(buffer));
                        buffer = "";
                    }
                };

                while (i < seg.length) {
                    const cp = seg.codePointAt(i);

                    if (cp === OLD_RGB_PREFIX && i + 3 < seg.length) {
                        flushBuffer();
                        const [rRaw, gRaw, bRaw] = [
                            seg.codePointAt(i + 1),
                            seg.codePointAt(i + 2),
                            seg.codePointAt(i + 3)
                        ];
                        const [r, g, b] = [rRaw & 0xFF, gRaw & 0xFF, bRaw & 0xFF];
                        const raw = seg.slice(i, i + 4);
                        this._appendColor(frag, r, g, b, raw);
                        i += 4;
                        continue;
                    }
                    if (cp >= 0xE000 && cp <= 0xEFFF) {
                        flushBuffer();
                        const nib = cp & 0x0FFF;
                        const r = ((nib >> 8) & 0xF) * 17;
                        const g = ((nib >> 4) & 0xF) * 17;
                        const b = (nib & 0xF) * 17;
                        const raw = seg.slice(i, i + 1);
                        this._appendColor(frag, r, g, b, raw);
                        i += 1;
                        continue;
                    }

                    this.tokenRegex.lastIndex = 0;
                    const rest = seg.slice(i);
                    const m = this.tokenRegex.exec(rest);
                    if (m && m.index === 0) {
                        flushBuffer();
                        const full = m[0], key = m[1];
                        const img = document.createElement("img");
                        img.src = this.emoteUrls[key] || "";
                        img.alt = img.title = full;
                        img.style.height = "0.75rem";
                        img.style.verticalAlign = "middle";
                        img.style.cursor = "pointer";
                        img.addEventListener("click", () => navigator.clipboard.writeText(full));
                        frag.appendChild(img);
                        i += full.length;
                        continue;
                    }

                    buffer += seg[i];
                    i++;
                }

                flushBuffer();
                if (segIdx < segments.length - 1) {
                    frag.appendChild(document.createElement("br"));
                }
            }

            return frag;
        }

        _initSuggestionListeners() {
            const input = document.querySelector("#chat-input");
            if (!input) return;
            const dd = this.dropdown;
            const MAX = this.MAX_SUGGESTIONS;
            const OFFSET = this.DROPDOWN_OFFSET_PX;
            const emoteKeys = Object.keys(this.emotes);
            let selectedIndex = -1;

            const wrapChar = ch => `<strong style="color: #ff007f;">${ch}</strong>`;

            function showSuggestions(q, rect) {
                const qLow = q.toLowerCase();
                const buckets = [[], [], [], []];
                for (const name of emoteKeys) {
                    const nameLow = name.toLowerCase();
                    if (nameLow === qLow) {
                        buckets[0].push(name);
                    } else if (nameLow.startsWith(qLow)) {
                        buckets[1].push(name);
                    } else if (nameLow.includes(qLow)) {
                        buckets[2].push(name);
                    } else {
                        let qi = 0;
                        for (const ch of nameLow) {
                            if (qi < qLow.length && ch === qLow[qi]) qi++;
                        }
                        if (qi === qLow.length) buckets[3].push(name);
                    }
                }
                for (const arr of buckets) arr.sort((a, b) => a.length - b.length || a.localeCompare(b));
                const matches = buckets.flat().slice(0, MAX);
                if (!matches.length) {
                    dd.style.display = "none";
                    return;
                }
                dd.innerHTML = "";
                dd.style.display = "block";
                dd.style.left = rect.left + "px";
                dd.style.bottom = (window.innerHeight - rect.top + OFFSET) + "px";

                const hdr = document.createElement("div");
                hdr.innerHTML = `<em>Showing top <strong>${matches.length}</strong> suggestion${matches.length === 1 ? "" : "s"}...</em>`;
                hdr.style.cssText = "font-size: 10px; color: #cccccc; padding: 6px; position: sticky; top: 0; background: #2c2c2c;";
                dd.appendChild(hdr);

                matches.forEach((name, idx) => {
                    const item = document.createElement("div");
                    item.className = "dropdown-item";
                    item.style.padding = "6px";
                    item.style.cursor = "pointer";
                    item.dataset.index = idx;

                    const img = document.createElement("img");
                    img.src = this.emoteUrls[name] || "";
                    img.alt = img.title = `:${name}:`;
                    img.style.height = "1rem";
                    img.style.verticalAlign = "middle";
                    img.style.marginRight = "4px";
                    item.appendChild(img);

                    let label = "";
                    let qi = 0;
                    for (const ch of name.split("")) {
                        if (qi < qLow.length && ch.toLowerCase() === qLow[qi]) {
                            label += wrapChar(ch);
                            qi++;
                        } else {
                            label += ch;
                        }
                    }
                    item.insertAdjacentHTML("beforeend", `:${label}:`);
                    item.addEventListener("click", () => select(idx));

                    dd.appendChild(item);
                });

                setSelected(0);
            }

            function clearSelection() {
                dd.querySelectorAll(".dropdown-item.selected").forEach(el => {
                    el.classList.remove("selected");
                    el.style.backgroundColor = "#3c3c3c";
                });
            }
            function setSelected(idx) {
                clearSelection();
                if (idx >= 0) {
                    const el = dd.querySelector(`.dropdown-item[data-index="${idx}"]`);
                    if (el) {
                        el.classList.add("selected");
                        el.style.backgroundColor = "#4c4c4c";
                        el.scrollIntoView({ block: "nearest" });
                        selectedIndex = idx;
                    }
                } else {
                    selectedIndex = -1;
                }
            }
            function select(idx) {
                const el = dd.querySelector(`.dropdown-item[data-index="${idx}"]`);
                if (el) {
                    const text = `${el.innerText.trim()} `;
                    input.value = input.value.replace(/(?<!\\):([^:]*)$/, text);
                }
                dd.style.display = "none";
                input.focus();
            }

            input.addEventListener("input", () => {
                const val = input.value, caret = input.selectionStart;
                const before = val.slice(0, caret);
                const m = before.match(/(?<!\\):([^:]+)$/);
                if (m) {
                    showSuggestions.call(this, m[1], input.getBoundingClientRect());
                } else {
                    dd.style.display = "none";
                }
            });

            input.addEventListener("keydown", e => {
                if (dd.style.display === "block") {
                    if (e.key === "ArrowDown" || e.key === "ArrowRight") {
                        e.preventDefault();
                        setSelected((selectedIndex + 1) % dd.querySelectorAll(".dropdown-item").length);
                    } else if (e.key === "ArrowUp" || e.key === "ArrowLeft") {
                        e.preventDefault();
                        const len = dd.querySelectorAll(".dropdown-item").length;
                        setSelected((selectedIndex - 1 + len) % len);
                    } else if (e.key === "Tab") {
                        if (selectedIndex >= 0) {
                            e.preventDefault();
                            select(selectedIndex);
                        }
                    } else if (e.key === "Escape" || e.key === "Enter") {
                        dd.style.display = "none";
                    }
                }
            });

            document.addEventListener("click", e => {
                if (!e.target.closest("#chat-input") && !e.target.closest("#emote-suggestions")) {
                    dd.style.display = "none";
                }
            });
        }
    }

    const manager = new EmotesManager(GM_info.script.version, BASE_URL);
    manager.init();
})();