pause game sounds in then inventory menu and while video playing

src/camera.h

@@ -38,6 +38,9 @@ struct Camera : ICamera {
     }
 
     void reset() {
+        Sound::listener[cameraIndex].matrix.identity();
+        Sound::listener[cameraIndex].matrix.translate(vec3(0x7FFFFFFF));
+
         lookAngle = vec3(0.0f);
 
         changeView(false);

src/inventory.h

@@ -683,6 +683,7 @@ struct Inventory {
     }
 
     void startVideo() {
+        applySounds(true);
         new Stream(playVideo ? TR::getGameVideo(game->getLevel()->id) : NULL, loadVideo, this);
     }
 
@@ -826,6 +827,15 @@ struct Inventory {
         return false;
     }
 
+    void applySounds(bool pause) {
+        for (int i = 0; i < Sound::channelsCount; i++)
+            if (Sound::channels[i]->flags & Sound::PAN)
+                if (pause)
+                    Sound::channels[i]->pause();
+                else
+                    Sound::channels[i]->resume();
+    }
+
     void toggle(int playerIndex = 0, Page curPage = PAGE_INVENTORY, TR::Entity::Type type = TR::Entity::NONE) {
         if (titleTimer != 0.0f || (isActive() != active))
             return;
@@ -839,6 +849,8 @@ struct Inventory {
             active = !active;
             vec3 p;
 
+            applySounds(active);
+
             if (curPage == PAGE_SAVEGAME) {
                 phaseRing = active ? 1.0f : 0.0f;
                 slot = 1;
@@ -1075,6 +1087,7 @@ struct Inventory {
             toggle(0, Inventory::PAGE_OPTION);
         }
         Input::reset();
+        applySounds(false);
     }
 
     void update() {

src/sound.h

@@ -706,10 +706,12 @@ namespace Sound {
         int     flags;
         int     id;
         bool    isPlaying;
+        bool    isPaused;
         bool    stopAfterFade;
 
         Sample(Decoder *decoder, float volume, float pitch, int flags, int id) : uniquePtr(NULL), decoder(decoder), volume(volume), volumeTarget(volume), volumeDelta(0.0f), pitch(pitch), flags(flags), id(id) {
             isPlaying = decoder != NULL;
+            isPaused  = false;
         }
 
         Sample(Stream *stream, const vec3 *pos, float volume, float pitch, int flags, int id) : uniquePtr(pos), decoder(NULL), volume(volume), volumeTarget(volume), volumeDelta(0.0f), pitch(pitch), flags(flags), id(id) {
@@ -771,6 +773,7 @@ namespace Sound {
                 delete stream;
 
             isPlaying = decoder != NULL;
+            isPaused  = false;
         }
 
         ~Sample() {
@@ -807,6 +810,12 @@ namespace Sound {
 
         bool render(Frame *frames, int count) {
             if (!isPlaying) return false;
+
+            if (isPaused) {
+                memset(frames, 0, sizeof(Frame) * count);
+                return true;
+            }
+
         // decode
             int i = 0;
             while (i < count) {
@@ -855,6 +864,14 @@ namespace Sound {
         void replay() {
             decoder->replay();
         }
+
+        void pause() {
+            isPaused = true;
+        }
+
+        void resume() {
+            isPaused = false;
+        }
     } *channels[SND_CHANNELS_MAX];
     int channelsCount;