Even more conversion, lots of superfluous macro removal

Quake/bgmusic.hpp

@@ -4,6 +4,7 @@
  *
  * Copyright (C) 1999-2005 Id Software, Inc.
  * Copyright (C) 2010-2012 O.Sezer <[email protected]>
+ * Copyright (C) 2026 iikorni
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,22 +23,25 @@
  *
  */
 
-#ifndef _BGMUSIC_H_
-#define _BGMUSIC_H_
+#pragma once
 
-extern qboolean	bgmloop;
-extern convar	bgm_extmusic;
+namespace music {
+    extern bool bgmloop;
+    extern convar bgm_extmusic;
 
-qboolean BGM_Init (void);
-void BGM_Shutdown (void);
+    void init();
 
-void BGM_Play (const char *filename);
-void BGM_Stop (void);
-void BGM_Update (void);
-void BGM_Pause (void);
-void BGM_Resume (void);
+    void shutdown();
 
-void BGM_PlayCDtrack (byte track, qboolean looping);
+    void play(const std::string &filename);
 
-#endif	/* _BGMUSIC_H_ */
+    void stop();
 
+    void update();
+
+    void pause();
+
+    void resume();
+
+    void play_cd_track(byte track, bool looping);
+}