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melhorando a leitura de projetos no mmpCreator
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This commit is contained in:
JotaChina 2025-12-25 12:26:01 -03:00
parent 08302947ad
commit d619e533aa
1 changed files with 10 additions and 15 deletions
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25
assets/js/creations/file.js
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@ -45,12 +45,12 @@ function resolveSamplePath(sampleName, pathMap) {
return null;
}
// helper: LMMS ticks -> seconds (1 beat = 192 ticks)
function ticksToSeconds(ticks, bpm) {
seconds = (ticks / 12) * getSecondsPerStep()
function ticksToSeconds(ticks) {
const seconds = (ticks / TICKS_PER_STEP) * getSecondsPerStep();
return seconds;
}
export async function parseBeatIndexJson(data) {
resetProjectState();
initializeAudioContext();
@ -263,9 +263,9 @@ function parseInstrumentNode(
const patternSteps = parseInt(patternNode.getAttribute("steps"), 10) || 16;
const steps = new Array(patternSteps).fill(false);
const notes = [];
// Constante de conversão LMMS (192 ticks = 1 beat, 48 ticks = 1 step)
const ticksPerStep = 48;
// No XML base: 1 compasso (bar) = 192 ticks em 4/4,
// então 1 beat = 48 ticks e 1 step (1/16) = 12 ticks.
const ticksPerStep = 12;
patternNode.querySelectorAll("note").forEach((noteNode) => {
const pos = parseInt(noteNode.getAttribute("pos"), 10);
@ -277,14 +277,9 @@ function parseInstrumentNode(
notes.push({ pos, len, key, vol, pan });
// Calcula qual step acender
// Nota: B/B Editor no LMMS geralmente usa notas de len=48.
// Se a nota for longa, isso marca apenas o step de início.
const stepIndex = Math.round(pos / ticksPerStep);
if (stepIndex >= 0 && stepIndex < patternSteps) {
steps[stepIndex] = true;
}
});
const stepIndex = Math.floor(pos / ticksPerStep);
if (stepIndex < patternSteps) steps[stepIndex] = true;
});
return {
name: patternName,
@ -608,7 +603,7 @@ export function syncPatternStateToServer() {
function createTrackXml(track) {
if (!track.patterns || track.patterns.length === 0) return "";
const ticksPerStep = 48; // Sincronizado com o parsing
const ticksPerStep = 12; // 1 step (1/16) no LMMS = 12 ticks (com bar=192 em 4/4)
const lmmsVolume = Math.round(track.volume * 100);
const lmmsPan = Math.round(track.pan * 100);