504 lines
18 KiB
JavaScript
504 lines
18 KiB
JavaScript
// js/file.js
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import { appState, saveStateToSession, resetProjectState } from "./state.js";
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import { loadAudioForTrack } from "./pattern/pattern_state.js";
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import { renderAll, getSamplePathMap } from "./ui.js";
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import { DEFAULT_PAN, DEFAULT_VOLUME, NOTE_LENGTH } from "./config.js";
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import {
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initializeAudioContext,
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getMainGainNode,
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} from "./audio.js";
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import * as Tone from "https://esm.sh/tone";
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import { sendAction } from "./socket.js";
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const BLANK_PROJECT_XML = `<?xml version="1.0"?>
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<!DOCTYPE lmms-project>
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<lmms-project type="song" version="1.0" creatorversion="1.2.2" creator="LMMS">
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<head bpm="140" mastervol="100" timesig_numerator="4" timesig_denominator="4" masterpitch="0"/>
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<song>
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<trackcontainer width="600" height="300" type="song" visible="1" maximized="0" x="5" y="5" minimized="0">
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</trackcontainer>
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<timeline lp0pos="0" lp1pos="192" lpstate="0"/>
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<controllers/>
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</song>
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</lmms-project>`;
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export function handleLocalProjectReset() {
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console.log("Recebido comando de reset. Limpando estado local...");
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if (window.ROOM_NAME) {
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try {
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sessionStorage.removeItem(`temp_state_${window.ROOM_NAME}`);
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} catch (e) {
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console.error("Falha ao limpar estado da sessão:", e);
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}
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}
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resetProjectState();
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document.getElementById("bpm-input").value = 140;
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document.getElementById("bars-input").value = 1;
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document.getElementById("compasso-a-input").value = 4;
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document.getElementById("compasso-b-input").value = 4;
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renderAll();
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}
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export async function handleFileLoad(file) {
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let xmlContent = "";
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try {
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if (file.name.toLowerCase().endsWith(".mmpz")) {
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// eslint-disable-next-line no-undef
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const jszip = new JSZip();
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const zip = await jszip.loadAsync(file);
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const projectFile = Object.keys(zip.files).find((name) =>
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name.toLowerCase().endsWith(".mmp")
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);
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if (!projectFile)
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throw new Error(
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"Não foi possível encontrar um arquivo .mmp dentro do .mmpz"
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);
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xmlContent = await zip.files[projectFile].async("string");
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} else {
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xmlContent = await file.text();
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}
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sendAction({ type: "LOAD_PROJECT", xml: xmlContent });
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} catch (error) {
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console.error("Erro ao carregar o projeto:", error);
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alert(`Erro ao carregar projeto: ${error.message}`);
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}
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}
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export async function loadProjectFromServer(fileName) {
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try {
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const response = await fetch(`mmp/${fileName}`);
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if (!response.ok)
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throw new Error(`Não foi possível carregar o arquivo ${fileName}`);
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const xmlContent = await response.text();
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sendAction({ type: "LOAD_PROJECT", xml: xmlContent });
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return true;
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} catch (error) {
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console.error("Erro ao carregar projeto do servidor:", error);
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alert(`Erro ao carregar projeto: ${error.message}`);
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return false;
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}
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}
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export async function parseMmpContent(xmlString) {
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resetProjectState();
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initializeAudioContext();
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appState.global.justReset = xmlString === BLANK_PROJECT_XML;
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const audioContainer = document.getElementById("audio-track-container");
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if (audioContainer) {
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audioContainer.innerHTML = "";
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}
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const parser = new DOMParser();
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const xmlDoc = parser.parseFromString(xmlString, "application/xml");
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appState.global.originalXmlDoc = xmlDoc;
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let newTracks = [];
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const head = xmlDoc.querySelector("head");
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if (head) {
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document.getElementById("bpm-input").value =
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head.getAttribute("bpm") || 140;
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document.getElementById("compasso-a-input").value =
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head.getAttribute("timesig_numerator") || 4;
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document.getElementById("compasso-b-input").value =
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head.getAttribute("timesig_denominator") || 4;
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}
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// --- CORREÇÃO DA SELEÇÃO DE TRACKS ---
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// 1. Identifica as faixas containers de Beat/Bassline (Type 1)
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const bbEditorTrackNodes = Array.from(
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xmlDoc.querySelectorAll('song > trackcontainer[type="song"] > track[type="1"]')
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);
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// 2. Identifica os nomes dos patterns (colunas do B/B Editor) - tag <bbtco>
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// Precisamos disso para dar nome aos patterns e saber quantos criar
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let sortedBBTrackNameNodes = [];
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if (bbEditorTrackNodes.length > 0) {
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// Pega do primeiro editor encontrado
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sortedBBTrackNameNodes = Array.from(bbEditorTrackNodes[0].querySelectorAll("bbtco"))
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.sort((a, b) => {
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const posA = parseInt(a.getAttribute("pos"), 10) || 0;
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const posB = parseInt(b.getAttribute("pos"), 10) || 0;
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return posA - posB;
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});
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}
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// 3. Identifica os instrumentos dentro do Beat/Bassline (Type 0 aninhado)
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const bbInstrumentTracks = [];
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bbEditorTrackNodes.forEach(container => {
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const instruments = container.querySelectorAll('bbtrack > trackcontainer > track[type="0"]');
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bbInstrumentTracks.push(...Array.from(instruments));
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});
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// 4. Identifica os instrumentos do Song Editor (Type 0 direto)
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const songInstrumentTracks = Array.from(
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xmlDoc.querySelectorAll('song > trackcontainer[type="song"] > track[type="0"]')
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);
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// Junta tudo
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const allInstrumentTrackNodes = [...bbInstrumentTracks, ...songInstrumentTracks];
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if (allInstrumentTrackNodes.length === 0) {
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appState.pattern.tracks = [];
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renderAll();
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return;
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}
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// Define um nome padrão para referência
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appState.global.currentBeatBasslineName = "Main Project";
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const pathMap = getSamplePathMap();
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newTracks = Array.from(allInstrumentTrackNodes)
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.map((trackNode) => {
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const instrumentNode = trackNode.querySelector("instrument");
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const instrumentTrackNode = trackNode.querySelector("instrumenttrack");
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if (!instrumentNode || !instrumentTrackNode) return null;
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const trackName = trackNode.getAttribute("name");
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const instrumentName = instrumentNode.getAttribute("name");
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const allPatternsNodeList = trackNode.querySelectorAll("pattern");
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const allPatternsArray = Array.from(allPatternsNodeList).sort((a, b) => {
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const posA = parseInt(a.getAttribute("pos"), 10) || 0;
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const posB = parseInt(b.getAttribute("pos"), 10) || 0;
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return posA - posB;
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});
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// Mapeia os patterns baseados nas colunas do B/B editor (sortedBBTrackNameNodes)
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// Se não houver colunas B/B (ex: projeto só Song Editor), cria 1 pattern padrão
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const patternsToCreate = sortedBBTrackNameNodes.length > 0 ? sortedBBTrackNameNodes : [{ getAttribute: () => "Pattern 1" }];
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const patterns = patternsToCreate.map((bbTrack, index) => {
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const patternNode = allPatternsArray[index];
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const bbTrackName = bbTrack.getAttribute("name") || `Pattern ${index + 1}`;
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if (!patternNode) {
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return {
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name: bbTrackName,
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steps: new Array(16).fill(false),
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notes: [],
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pos: 0,
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};
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}
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const patternSteps = parseInt(patternNode.getAttribute("steps"), 10) || 16;
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const steps = new Array(patternSteps).fill(false);
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const notes = [];
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const ticksPerStep = 12;
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patternNode.querySelectorAll("note").forEach((noteNode) => {
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const pos = parseInt(noteNode.getAttribute("pos"), 10);
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const len = parseInt(noteNode.getAttribute("len"), 10);
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const key = parseInt(noteNode.getAttribute("key"), 10);
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const vol = parseInt(noteNode.getAttribute("vol"), 10);
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const pan = parseInt(noteNode.getAttribute("pan"), 10);
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notes.push({
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pos: pos,
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len: len,
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key: key,
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vol: vol,
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pan: pan
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});
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const stepIndex = Math.round(pos / ticksPerStep);
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if (stepIndex < patternSteps) {
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steps[stepIndex] = true;
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}
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});
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return {
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name: bbTrackName,
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steps: steps,
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notes: notes,
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pos: parseInt(patternNode.getAttribute("pos"), 10) || 0,
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};
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});
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// Verifica se tem notas em algum pattern
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const hasNotes = patterns.some((p) => p.notes.length > 0 || p.steps.includes(true));
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// Opcional: Se quiser carregar tracks vazias, remova a linha abaixo
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if (!hasNotes && patterns.length === 0) return null;
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let finalSamplePath = null;
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let trackType = "plugin";
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if (instrumentName === "audiofileprocessor") {
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trackType = "sampler";
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const afpNode = instrumentNode.querySelector("audiofileprocessor");
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const sampleSrc = afpNode ? afpNode.getAttribute("src") : null;
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if (sampleSrc) {
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const filename = sampleSrc.split("/").pop();
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if (pathMap[filename]) {
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finalSamplePath = pathMap[filename];
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} else {
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let cleanSrc = sampleSrc;
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if (cleanSrc.startsWith("samples/")) {
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cleanSrc = cleanSrc.substring("samples/".length);
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}
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finalSamplePath = `src/samples/${cleanSrc}`;
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}
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}
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}
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const volFromFile = parseFloat(instrumentTrackNode.getAttribute("vol"));
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const panFromFile = parseFloat(instrumentTrackNode.getAttribute("pan"));
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return {
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id: Date.now() + Math.random(),
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name: trackName,
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type: trackType,
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samplePath: finalSamplePath,
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patterns: patterns,
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activePatternIndex: 0,
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volume: !isNaN(volFromFile) ? volFromFile / 100 : DEFAULT_VOLUME,
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pan: !isNaN(panFromFile) ? panFromFile / 100 : DEFAULT_PAN,
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instrumentName: instrumentName,
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instrumentXml: instrumentNode.innerHTML,
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};
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})
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.filter((track) => track !== null);
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let isFirstTrackWithNotes = true;
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newTracks.forEach((track) => {
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track.volumeNode = new Tone.Volume(Tone.gainToDb(track.volume));
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track.pannerNode = new Tone.Panner(track.pan);
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track.volumeNode.connect(track.pannerNode);
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track.pannerNode.connect(getMainGainNode());
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if (isFirstTrackWithNotes) {
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const activeIdx = track.activePatternIndex || 0;
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const activePattern = track.patterns[activeIdx];
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if (activePattern && activePattern.steps) {
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const stepsLength = activePattern.steps.length;
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const requiredBars = Math.ceil(stepsLength / 16);
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document.getElementById("bars-input").value = requiredBars > 0 ? requiredBars : 1;
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isFirstTrackWithNotes = false;
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}
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}
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});
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try {
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const trackLoadPromises = newTracks.map((track) =>
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loadAudioForTrack(track)
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);
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await Promise.all(trackLoadPromises);
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} catch (error) {
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console.error("Ocorreu um erro ao carregar os áudios do projeto:", error);
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}
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appState.pattern.tracks = newTracks;
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appState.pattern.activeTrackId = appState.pattern.tracks[0]?.id || null;
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appState.pattern.activePatternIndex = 0;
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// --- Restauração de Sessão (F5) ---
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try {
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const roomName = window.ROOM_NAME || "default_room";
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const tempStateJSON = sessionStorage.getItem(`temp_state_${roomName}`);
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if (tempStateJSON) {
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console.log("Restaurando estado temporário da sessão...");
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const tempState = JSON.parse(tempStateJSON);
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appState.pattern.tracks.forEach((liveTrack) => {
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const savedTrack = tempState.pattern.tracks.find(
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(t) => t.id === liveTrack.id
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);
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if (savedTrack) {
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liveTrack.name = savedTrack.name;
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liveTrack.patterns = savedTrack.patterns;
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liveTrack.activePatternIndex = savedTrack.activePatternIndex;
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liveTrack.volume = savedTrack.volume;
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liveTrack.pan = savedTrack.pan;
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if (liveTrack.volumeNode) {
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liveTrack.volumeNode.volume.value = Tone.gainToDb(savedTrack.volume);
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}
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if (liveTrack.pannerNode) {
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liveTrack.pannerNode.pan.value = savedTrack.pan;
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}
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}
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});
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appState.pattern.tracks = appState.pattern.tracks.filter((liveTrack) =>
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tempState.pattern.tracks.some((t) => t.id === liveTrack.id)
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);
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document.getElementById("bpm-input").value = tempState.global.bpm;
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document.getElementById("compasso-a-input").value = tempState.global.compassoA;
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document.getElementById("compasso-b-input").value = tempState.global.compassoB;
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document.getElementById("bars-input").value = tempState.global.bars;
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appState.pattern.activeTrackId = tempState.pattern.activeTrackId;
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}
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} catch (e) {
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console.error("Erro ao restaurar sessão:", e);
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}
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await Promise.resolve();
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renderAll();
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}
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export function generateMmpFile() {
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if (appState.global.originalXmlDoc) {
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modifyAndSaveExistingMmp();
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} else {
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generateNewMmp();
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}
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}
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function generateXmlFromState() {
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if (!appState.global.originalXmlDoc) {
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console.warn("Não há XML original. Retornando vazio.");
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return "";
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}
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const xmlDoc = appState.global.originalXmlDoc.cloneNode(true);
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const head = xmlDoc.querySelector("head");
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if (head) {
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head.setAttribute("bpm", document.getElementById("bpm-input").value);
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head.setAttribute("num_bars", document.getElementById("bars-input").value);
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head.setAttribute("timesig_numerator", document.getElementById("compasso-a-input").value);
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head.setAttribute("timesig_denominator", document.getElementById("compasso-b-input").value);
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}
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const bbTrackContainer = xmlDoc.querySelector('track[type="1"] > bbtrack > trackcontainer');
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if (bbTrackContainer) {
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bbTrackContainer.querySelectorAll('track[type="0"]').forEach((node) => node.remove());
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const tracksXml = appState.pattern.tracks
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.map((track) => createTrackXml(track))
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.join("");
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// Gambiarra para inserir o XML gerado como nós DOM
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const tempDoc = new DOMParser().parseFromString(`<root>${tracksXml}</root>`, "application/xml");
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Array.from(tempDoc.documentElement.children).forEach((newTrackNode) => {
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bbTrackContainer.appendChild(newTrackNode);
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});
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}
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const serializer = new XMLSerializer();
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return serializer.serializeToString(xmlDoc);
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}
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export function syncPatternStateToServer() {
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if (!window.ROOM_NAME) return;
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const currentXml = generateXmlFromState();
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sendAction({ type: "SYNC_PATTERN_STATE", xml: currentXml });
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saveStateToSession();
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}
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function createTrackXml(track) {
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if (track.patterns.length === 0) return "";
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const ticksPerStep = 12;
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const lmmsVolume = Math.round(track.volume * 100);
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const lmmsPan = Math.round(track.pan * 100);
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const patternsXml = track.patterns.map((pattern) => {
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let patternNotesXml = "";
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// SE for plugin e tiver notas detalhadas, usa elas
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if (track.type === "plugin" && pattern.notes && pattern.notes.length > 0) {
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patternNotesXml = pattern.notes.map(note => {
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return `<note vol="${note.vol}" len="${note.len}" pos="${note.pos}" pan="${note.pan}" key="${note.key}"/>`;
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}).join("\n ");
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}
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// SE for sampler (ou plugin sem notas detalhadas), usa os steps convertidos em notas simples
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else {
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patternNotesXml = pattern.steps.map((isActive, index) => {
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if (isActive) {
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const notePos = Math.round(index * ticksPerStep);
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// Key 57 é o padrão do LMMS para samples (Lá)
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return `<note vol="100" len="${NOTE_LENGTH}" pos="${notePos}" pan="0" key="57"/>`;
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}
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return "";
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}).join("\n ");
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}
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return `<pattern type="0" pos="${pattern.pos}" muted="0" steps="${pattern.steps.length}" name="${pattern.name}">
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${patternNotesXml}
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</pattern>`;
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}).join("\n ");
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return `
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<track type="0" solo="0" muted="0" name="${track.name}">
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<instrumenttrack vol="${lmmsVolume}" pitch="0" fxch="0" pitchrange="1" basenote="57" usemasterpitch="1" pan="${lmmsPan}">
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<instrument name="${track.instrumentName}">
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${track.instrumentXml}
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</instrument>
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<fxchain enabled="0" numofeffects="0"/>
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</instrumenttrack>
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${patternsXml}
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</track>`;
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}
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function modifyAndSaveExistingMmp() {
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const content = generateXmlFromState();
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downloadFile(content, "projeto_editado.mmp");
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}
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function generateNewMmp() {
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const bpm = document.getElementById("bpm-input").value;
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const sig_num = document.getElementById("compasso-a-input").value;
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const sig_den = document.getElementById("compasso-b-input").value;
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const num_bars = document.getElementById("bars-input").value;
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const tracksXml = appState.pattern.tracks
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.map((track) => createTrackXml(track))
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.join("");
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const mmpContent = `<?xml version="1.0"?>
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<!DOCTYPE lmms-project>
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<lmms-project version="1.0" type="song" creator="MMPCreator" creatorversion="1.0">
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<head mastervol="100" timesig_denominator="${sig_den}" bpm="${bpm}" timesig_numerator="${sig_num}" masterpitch="0" num_bars="${num_bars}"/>
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<song>
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<trackcontainer type="song">
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<track type="1" solo="0" muted="0" name="Beat/Bassline 0">
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<bbtrack>
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<trackcontainer type="bbtrackcontainer">
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${tracksXml}
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</trackcontainer>
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</bbtrack>
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<bbtco color="4286611584" len="192" usestyle="1" pos="0" muted="0" name="Pattern 1"/>
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</track>
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</trackcontainer>
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<timeline lp1pos="192" lp0pos="0" lpstate="0"/>
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<controllers/>
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<projectnotes width="686" y="10" minimized="0" visible="0" x="700" maximized="0" height="400"><![CDATA[<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
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<html><head><meta name="qrichtext" content="1" /><style type="text/css">
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p, li { white-space: pre-wrap; }
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</style></head><body>
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<p>Feito com MMPCreator</p>
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</body></html>]]></projectnotes>
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</song>
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</lmms-project>`;
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downloadFile(mmpContent, "novo_projeto.mmp");
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}
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function downloadFile(content, fileName) {
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const blob = new Blob([content], { type: "application/xml;charset=utf-8" });
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const url = URL.createObjectURL(blob);
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const a = document.createElement("a");
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a.href = url;
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a.download = fileName;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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}
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export { BLANK_PROJECT_XML }; |