music: fix the main music playing at the wrong volume

Fixed quiet or mute main menu music if a level was exited while
underwater and the quiet, full but no ambient, quiet but no
ambient, or none underwater music behavior option was set.

Resolves #1540.

CHANGELOG.md

@@ -4,6 +4,7 @@
 - fixed ability to crash the game with extreme FOV values (regression from 0.9)
 - fixed double "Fly mode enabled" message when using `/fly` console command (regression from 4.0)
 - fixed crash in the `/set` console command (regression from 4.4)
+- fixed the main menu music being quiet or mute if a level was exited while underwater and the quiet, full but no ambient, quiet but no ambient, or none underwater music behavior option was set (regression from 4.4)
 
 ## [4.4](https://github.com/LostArtefacts/TR1X/compare/4.3-102-g458cd96...4.4) - 2024-09-20
 - added `/exit` command (#1462)

src/game/music.c

@@ -134,6 +134,8 @@ bool Music_PlayLooped(MUSIC_TRACK_ID track)
     if (g_CurrentLevel == g_GameFlow.title_level_num
         && !g_Config.enable_music_in_menu) {
         return false;
+    } else if (g_CurrentLevel == g_GameFlow.title_level_num) {
+        Music_SetVolume(g_Config.music_volume);
     }
 
     M_StopActiveStream();