xrGame/sound_player.h|cpp: reference is not needed in random()

Moreover, using reference here is less optimal. Pure value is
sufficient.

Also removed unnecessary parenthesis

Author: Xottab-DUTY

src/xrGame/sound_player.cpp

@@ -283,7 +283,7 @@ CSoundPlayer::CSoundCollection::~CSoundCollection()
     delete_data(m_sounds);
 }
 
-const ref_sound& CSoundPlayer::CSoundCollection::random(const u32& id)
+const ref_sound& CSoundPlayer::CSoundCollection::random(u32 id)
 {
     VERIFY(!m_sounds.empty());
 
@@ -307,5 +307,5 @@ const ref_sound& CSoundPlayer::CSoundCollection::random(const u32& id)
     } while (result == m_last_sound_id);
 
     m_last_sound_id = result;
-    return (*m_sounds[result]);
+    return *m_sounds[result];
 }

src/xrGame/sound_player.h

@@ -60,7 +60,7 @@ class CSoundPlayer : public CRandom32
         CSoundCollection(const CSoundCollectionParams& params);
         ~CSoundCollection();
         IC ref_sound* add(ESoundTypes type, LPCSTR name) const;
-        const ref_sound& random(const u32& id);
+        const ref_sound& random(u32 id);
     };
 
     struct CSoundSingle : public CSoundParams