Add audio volume controls to settings

include/audio/activity_sound_manager.hpp

@@ -30,6 +30,8 @@ public:
     void playWaterEnter();
     void playWaterExit();
     void playMeleeSwing();
+    void setVolumeScale(float scale) { volumeScale = scale; }
+    float getVolumeScale() const { return volumeScale; }
 
 private:
     struct Sample {
@@ -66,6 +68,7 @@ private:
     std::chrono::steady_clock::time_point lastMeleeSwingAt{};
     bool meleeSwingWarned = false;
     std::string voiceProfileKey;
+    float volumeScale = 1.0f;
 
     void preloadCandidates(std::vector<Sample>& out, const std::vector<std::string>& candidates);
     void preloadLandingSet(FootstepSurface surface, const std::string& material);

include/audio/footstep_manager.hpp

@@ -32,6 +32,8 @@ public:
 
     void update(float deltaTime);
     void playFootstep(FootstepSurface surface, bool sprinting);
+    void setVolumeScale(float scale) { volumeScale = scale; }
+    float getVolumeScale() const { return volumeScale; }
 
     bool isInitialized() const { return assetManager != nullptr; }
     bool hasAnySamples() const { return sampleCount > 0; }
@@ -61,6 +63,7 @@ private:
     std::chrono::steady_clock::time_point lastPlayTime = std::chrono::steady_clock::time_point{};
 
     std::mt19937 rng;
+    float volumeScale = 1.0f;
 };
 
 } // namespace audio

include/audio/music_manager.hpp

@@ -22,6 +22,8 @@ public:
     void stopMusic(float fadeMs = 2000.0f);
     void crossfadeTo(const std::string& mpqPath, float fadeMs = 3000.0f);
     void update(float deltaTime);
+    void setVolume(int volume);
+    int getVolume() const { return volumePercent; }
 
     bool isPlaying() const { return playing; }
     bool isInitialized() const { return assetManager != nullptr; }
@@ -32,9 +34,11 @@ private:
 
     pipeline::AssetManager* assetManager = nullptr;
     std::string currentTrack;
+    bool currentTrackIsFile = false;
     std::string tempFilePath;
     ProcessHandle playerPid = INVALID_PROCESS;
     bool playing = false;
+    int volumePercent = 30;
 
     // Crossfade state
     bool crossfading = false;

include/rendering/renderer.hpp

@@ -131,6 +131,8 @@ public:
     double getLastWMORenderMs() const { return lastWMORenderMs; }
     double getLastM2RenderMs() const { return lastM2RenderMs; }
     audio::MusicManager* getMusicManager() { return musicManager.get(); }
+    audio::FootstepManager* getFootstepManager() { return footstepManager.get(); }
+    audio::ActivitySoundManager* getActivitySoundManager() { return activitySoundManager.get(); }
 
 private:
     core::Window* window = nullptr;

include/ui/game_screen.hpp

@@ -61,6 +61,8 @@ private:
     bool pendingVsync = false;
     int pendingResIndex = 0;
     bool pendingShadows = true;
+    int pendingMusicVolume = 30;
+    int pendingSfxVolume = 100;
 
     /**
      * Render player info window