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Add AM modulation support to parser and exporter

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This commit is contained in:
c0dev0id 2026-06-24 16:19:24 +02:00
parent 1706404b7e
commit 923aa5d41a
2 changed files with 15 additions and 1 deletions
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10
static/ast-parser.js
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@ -181,6 +181,7 @@ function buildInstrument(node) {
volumes: null,
timbre: null,
fmModulations: [],
amModulations: [],
rawChildren: [],
};
@ -201,6 +202,9 @@ function buildInstrument(node) {
case 'FM.modulation':
instr.fmModulations.push({ ...child.props });
break;
case 'AM.modulation':
instr.amModulations.push({ ...child.props });
break;
default:
instr.rawChildren.push(buildGeneric(child));
}
@ -253,6 +257,7 @@ function buildBasicProperties(node) {
A: null, S: null, R: null,
oscillator: null,
fmModulations: [],
amModulations: [],
rawChildren: [],
};
@ -271,6 +276,11 @@ function buildBasicProperties(node) {
const envChild = child.children.find(c => c.slot === 'shape');
if (envChild) fm.shape = buildShape(envChild);
bp.fmModulations.push(fm);
} else if (child.parentSlot === 'AM' && child.slot === 'modulation') {
const am = { ...child.props };
const envChild = child.children.find(c => c.slot === 'shape');
if (envChild) am.shape = buildShape(envChild);
bp.amModulations.push(am);
} else {
bp.rawChildren.push(buildGeneric(child));
}

6
static/exporter.js
View File

@ -47,6 +47,7 @@ function basicPropLines(bp) {
const r = serializeShape(bp.R);
if (r) lines.push(`R: "${r}"`);
for (const fm of (bp.fmModulations ?? [])) lines.push(`FM: "${serializeFm(fm)}"`);
for (const am of (bp.amModulations ?? [])) lines.push(`AM: "${serializeFm(am)}"`);
return lines;
}
@ -76,6 +77,7 @@ function variationLines(v) {
const timbre = serializeShape(v.timbre);
if (timbre) lines.push(`TIMBRE: "${timbre}"`);
for (const fm of (v.fmModulations ?? [])) lines.push(`FM: "${serializeFm(fm)}"`);
for (const am of (v.amModulations ?? [])) lines.push(`AM: "${serializeFm(am)}"`);
for (const sv of (v.subvariations ?? [])) lines.push(...variationLines(sv));
return lines;
}
@ -89,7 +91,8 @@ function variationLines(v) {
function instrCharacterLines(instr) {
const variations = instr.variations ?? [];
const hasRootProps = instr.basicProperties || instr.volumes || instr.timbre ||
(instr.fmModulations ?? []).length > 0;
(instr.fmModulations ?? []).length > 0 ||
(instr.amModulations ?? []).length > 0;
const syntheticRoot = hasRootProps
? {
basicProperties: instr.basicProperties,
@ -98,6 +101,7 @@ function instrCharacterLines(instr) {
volumes: instr.volumes,
timbre: instr.timbre,
fmModulations: instr.fmModulations ?? [],
amModulations: instr.amModulations ?? [],
}
: null;