317 lines
12 KiB
JavaScript
317 lines
12 KiB
JavaScript
// js/file.js
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import { appState, 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 { initializeAudioContext, getAudioContext, getMainGainNode } from "./audio.js";
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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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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("Não foi possível encontrar um arquivo .mmp dentro do .mmpz");
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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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await parseMmpContent(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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await parseMmpContent(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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console.error(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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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 = head.getAttribute("bpm") || 140;
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document.getElementById("compasso-a-input").value = head.getAttribute("timesig_numerator") || 4;
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document.getElementById("compasso-b-input").value = head.getAttribute("timesig_denominator") || 4;
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}
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const allBBTrackNodes = Array.from(xmlDoc.querySelectorAll('song > trackcontainer[type="song"] > track[type="1"]'));
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if (allBBTrackNodes.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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const sortedBBTrackNameNodes = [...allBBTrackNodes].sort((a, b) => {
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const bbtcoA = a.querySelector('bbtco');
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const bbtcoB = b.querySelector('bbtco');
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const posA = bbtcoA ? parseInt(bbtcoA.getAttribute('pos'), 10) : Infinity;
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const posB = bbtcoB ? parseInt(bbtcoB.getAttribute('pos'), 10) : Infinity;
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return posA - posB;
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});
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const dataSourceTrack = allBBTrackNodes[0];
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appState.global.currentBeatBasslineName = dataSourceTrack.getAttribute("name") || "Beat/Bassline";
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const bbTrackContainer = dataSourceTrack.querySelector('bbtrack > trackcontainer');
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if (!bbTrackContainer) {
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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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const instrumentTracks = bbTrackContainer.querySelectorAll('track[type="0"]');
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const pathMap = getSamplePathMap();
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newTracks = Array.from(instrumentTracks).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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if (instrumentNode.getAttribute("name") === 'tripleoscillator') {
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return null;
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}
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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 posB - posA;
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});
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const patterns = sortedBBTrackNameNodes.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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const firstPattern = allPatternsArray[0];
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const stepsLength = firstPattern ? parseInt(firstPattern.getAttribute("steps"), 10) || 16 : 16;
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return { name: bbTrackName, steps: new Array(stepsLength).fill(false), pos: 0 };
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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 ticksPerStep = 12;
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patternNode.querySelectorAll("note").forEach((noteNode) => {
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const noteLocalPos = parseInt(noteNode.getAttribute("pos"), 10);
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const stepIndex = Math.round(noteLocalPos / 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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pos: parseInt(patternNode.getAttribute("pos"), 10) || 0
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};
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});
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const hasNotes = patterns.some(p => p.steps.includes(true));
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if (!hasNotes) return null;
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const afpNode = instrumentNode.querySelector("audiofileprocessor");
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const sampleSrc = afpNode ? afpNode.getAttribute("src") : null;
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let finalSamplePath = 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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const volFromFile = parseFloat(instrumentTrackNode.getAttribute("vol"));
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const panFromFile = parseFloat(instrumentTrackNode.getAttribute("pan"));
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const firstPatternWithNotesIndex = patterns.findIndex(p => p.steps.includes(true));
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return {
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id: Date.now() + Math.random(),
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name: trackName,
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samplePath: finalSamplePath,
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patterns: patterns,
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activePatternIndex: firstPatternWithNotesIndex !== -1 ? firstPatternWithNotesIndex : 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: instrumentNode.getAttribute("name"),
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instrumentXml: instrumentNode.innerHTML,
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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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// --- INÍCIO DA CORREÇÃO ---
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// Cria os nós de áudio usando os construtores do Tone.js
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track.gainNode = new Tone.Gain(Tone.gainToDb(track.volume));
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track.pannerNode = new Tone.Panner(track.pan);
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// Conecta a cadeia de áudio: Gain -> Panner -> Saída Principal (Destination)
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track.gainNode.connect(track.pannerNode);
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track.pannerNode.connect(getMainGainNode());
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// --- FIM DA CORREÇÃO ---
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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) {
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const firstPatternSteps = activePattern.steps.length;
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const stepsPerBar = 16;
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const requiredBars = Math.ceil(firstPatternSteps / stepsPerBar);
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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 => loadAudioForTrack(track));
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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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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 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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const patternNotes = 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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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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return `<pattern type="0" pos="${pattern.pos}" muted="0" steps="${pattern.steps.length}" name="${pattern.name}">
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${patternNotes}
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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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console.log("Modificando arquivo .mmp existente...");
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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.map((track) => createTrackXml(track)).join("");
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const tempDoc = new DOMParser().parseFromString(`<root>${tracksXml}</root>`, "application/xml");
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Array.from(tempDoc.documentElement.children).forEach((newTrackNode) => {
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bbTrackContainer.appendChild(newTrackNode);
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});
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}
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const serializer = new XMLSerializer();
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const mmpContent = serializer.serializeToString(xmlDoc);
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downloadFile(mmpContent, "projeto_editado.mmp");
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}
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function generateNewMmp() {
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const bpm = document.getElementById("bpm-input").value;
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const sig_num = document.getElementById("compasso-a-input").value;
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const sig_den = document.getElementById("compasso-b-input").value;
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const num_bars = document.getElementById("bars-input").value;
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const tracksXml = appState.pattern.tracks.map((track) => createTrackXml(track)).join("");
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const mmpContent = `<?xml version="1.0"?>
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<!DOCTYPE lmms-project>
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<lmms-project version="1.0" type="song" creator="MMPCreator" creatorversion="1.0">
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<head mastervol="100" timesig_denominator="${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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} |