Pause audio when the pause menu is opened

src/audio/soundplayer.c

@@ -13,6 +13,7 @@ ALSndPlayer gSoundPlayer;
 #define SOUND_FLAGS_3D          (1 << 0)
 #define SOUND_FLAGS_LOOPING     (1 << 1)
 #define SOUND_HAS_STARTED       (1 << 2)
+#define SOUND_FLAGS_PAUSED      (1 << 3)
 
 #define SPEED_OF_SOUND          343.2f
 
@@ -201,6 +202,12 @@ void soundPlayerUpdate() {
     while (index < gActiveSoundCount) {
         struct ActiveSound* sound = &gActiveSounds[index];
 
+        if (sound->flags & SOUND_FLAGS_PAUSED) {
+            ++writeIndex;
+            ++index;
+            continue;
+        }
+
         sound->estimatedTimeLeft -= FIXED_DELTA_TIME;
 
         alSndpSetSound(&gSoundPlayer, sound->soundId);
@@ -322,4 +329,30 @@ void soundListenerUpdate(struct Vector3* position, struct Quaternion* rotation,
 
 void soundListenerSetCount(int count) {
     gActiveListenerCount = count;
+}
+
+void soundPlayerPause() {
+    for (int i = 0; i < gActiveSoundCount; ++i) {
+        struct ActiveSound* activeSound = &gActiveSounds[i];
+        if (activeSound->soundId != SOUND_ID_NONE) {
+            activeSound->flags |= SOUND_FLAGS_PAUSED;
+
+            alSndpSetSound(&gSoundPlayer, activeSound->soundId);
+            alSndpSetPitch(&gSoundPlayer, 0.0f);
+            alSndpSetVol(&gSoundPlayer, 0);
+        }
+    }
+}
+
+void soundPlayerResume() {
+    for (int i = 0; i < gActiveSoundCount; ++i) {
+        struct ActiveSound* activeSound = &gActiveSounds[i];
+        if (activeSound->flags & SOUND_FLAGS_PAUSED) {
+            activeSound->flags &= ~SOUND_FLAGS_PAUSED;
+
+            alSndpSetSound(&gSoundPlayer, activeSound->soundId);
+            alSndpSetPitch(&gSoundPlayer, activeSound->basePitch);
+            alSndpSetVol(&gSoundPlayer, (short)(32767 * activeSound->volume));
+        }
+    }
 }

src/audio/soundplayer.h

@@ -24,6 +24,9 @@ ALSndId soundPlayerPlay(int soundClipId, float volume, float pitch, struct Vecto
 void soundPlayerStop(ALSndId soundId);
 void soundPlayerStopAll();
 
+void soundPlayerPause();
+void soundPlayerResume();
+
 void soundPlayerUpdatePosition(ALSndId soundId, struct Vector3* at, struct Vector3* velocity);
 void soundPlayerAdjustVolume(ALSndId soundId, float newVolume);
 

src/scene/scene.c

@@ -108,6 +108,8 @@ void sceneInitNoPauseMenu(struct Scene* scene) {
     scene->camera.transform.rotation = scene->player.lookTransform.rotation;
     scene->camera.transform.position = scene->player.lookTransform.position;
 
+    sceneUpdateListeners(scene);
+
     if (gCurrentLevelIndex >= LEVEL_INDEX_WITH_GUN_0) {
         playerGivePortalGun(&scene->player, PlayerHasFirstPortalGun);
     }
@@ -480,6 +482,10 @@ void sceneUpdate(struct Scene* scene) {
             gGameMenu.state = GameMenuStateResumeGame;
         }
 
+        if (gGameMenu.state == GameMenuStateResumeGame) {
+            soundPlayerResume();
+        }
+
         if (gGameMenu.state == GameMenuStateQuit) {
             levelQueueLoad(MAIN_MENU, NULL, NULL);
             return;
@@ -490,6 +496,7 @@ void sceneUpdate(struct Scene* scene) {
         savefileGrabScreenshot();
         gGameMenu.state = GameMenuStateLanding;
         gGameMenu.landingMenu.selectedItem = 0;
+        soundPlayerPause();
     }
 
     signalsReset();