Working on music cross fade and settings

src/AudioPlayerAsync.h

@@ -24,11 +24,20 @@ public:
 
     void playSoundAsync(const std::string& filePath, int loops = 0, int channel = -1);
     void playMusicAsync(const std::string& filePath, int loops = -1);
+    void crossFadeMusicAsync(const std::string& filePath, int fadeDurationMs = 1000, int loops = -1);
+    void crossFadeMusicFromPositionAsync(const std::string& filePath, int fadeDurationMs = 1000, int loops = -1);
     void stopMusicAsync();
     void pauseMusicAsync();
     void resumeMusicAsync();
     void setMusicVolume(int volume);               // 0..128
     void setSoundVolume(int volume);               // 0..128
+    int  getMusicVolume() const { return musicVolume_; }
+    int  getSoundVolume() const { return soundVolume_; }
+
+    void setMusicEnabled(bool enabled);
+    void setSoundEnabled(bool enabled);
+    bool isMusicEnabled() const { return musicEnabled_; }
+    bool isSoundEnabled() const { return soundEnabled_; }
 
     void exit() { stop = true; }
 
@@ -47,6 +56,12 @@ private:
     std::mutex soundCacheMutex;
 
     std::string currentTrack;
+    Mix_Music* currentMusic_ = nullptr;
+
+    int  musicVolume_ = 128;
+    int  soundVolume_ = 128;
+    bool musicEnabled_ = true;
+    bool soundEnabled_ = true;
 
     bool initialized = false;
 };