Fix issue preventing building projects containing a "Play Music" even…

…t but no music

CHANGELOG.md

@@ -16,7 +16,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix issue where adding a new song wouldn't warn about unsaved changes in current song
 - Fix issue where adding a song with an already existing name wouldn't auto select the newly created song
 - Fix issue where scene connection lines could get stuck in place if custom scripts that change scenes are called multiple times from the same scene
-- Fix issue where "Replace Script" confirmation alert would appear when pasting sometimes even if the custom script hadn't been modified 
+- Fix issue where "Replace Script" confirmation alert would appear when pasting sometimes even if the custom script hadn't been modified
+- Fix issue preventing building projects containing a "Play Music" event but no music
 
 ## [4.1.2] - 2024-09-09
 

src/lib/compiler/compileData.ts

@@ -882,9 +882,9 @@ export const precompileMusic = (
         cmd.args &&
         (cmd.args.musicId !== undefined || cmd.command === EVENT_MUSIC_PLAY)
       ) {
-        const musicId = ensureString(cmd.args.musicId, music[0].id);
+        const musicId = ensureString(cmd.args.musicId, music[0]?.id ?? "");
         // If never seen this track before add it to the list
-        if (usedMusicIds.indexOf(musicId) === -1) {
+        if (musicId.length > 0 && usedMusicIds.indexOf(musicId) === -1) {
           usedMusicIds.push(musicId);
         }
       } else if (eventHasArg(cmd, "references")) {
@@ -913,7 +913,7 @@ export const precompileMusic = (
         id: track.id,
       };
     })
-    .filter((track) => track)
+    .filter((track) => track.symbol)
     .map((track) => {
       return {
         ...track,