51 lines
1.6 KiB
TypeScript
51 lines
1.6 KiB
TypeScript
import tjaParser, { Bar, Branch, Course } from 'tja-parser'
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export function parseTja(tja: string): Partial<Record<'oni' | 'edit', Course>> | null {
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try {
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const song = tjaParser.Song.parse(tja);
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let oni: Course | undefined = undefined;
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let edit: Course | undefined = undefined;
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if (song.course?.oni) {
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const noteGroups = song.course.oni.noteGroups;
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oni = song.course.oni;
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oni.noteGroups = []
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for (const noteGroup of noteGroups) {
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if (noteGroup instanceof Bar) {
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oni.pushNoteGroups(noteGroup)
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}
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else if (noteGroup instanceof Branch) {
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const bar = noteGroup.master || noteGroup.advanced || noteGroup.normal;
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if (bar) {
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oni.pushNoteGroups(...bar)
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}
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}
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}
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}
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if (song.course?.edit) {
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const noteGroups = song.course.edit.noteGroups;
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edit = song.course.edit;
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edit.noteGroups = []
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for (const noteGroup of noteGroups) {
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if (noteGroup instanceof Bar) {
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edit.pushNoteGroups(noteGroup)
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}
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else if (noteGroup instanceof Branch) {
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const bar = noteGroup.master || noteGroup.advanced || noteGroup.normal;
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if (bar) {
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edit.pushNoteGroups(...bar)
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}
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}
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}
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}
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return { oni, edit }
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}
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catch (err){
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console.error(err)
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return null;
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}
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} |