Now calculating the velocity for the listener correctly.

include/Engine/Sound/SoundSystem.h

@@ -41,7 +41,7 @@ public:
     SoundSystem(World* world, EventBroker* eventBroker, bool editorMode);
     ~SoundSystem();
     // Update emitters / listener
-    void Update(); 
+    void Update(double dt); 
 private:
     // Help functions for working with OpenaAL
     void setListenerPos(glm::vec3 pos) { alListener3f(AL_POSITION, pos.x, pos.y, pos.z); };
@@ -55,10 +55,10 @@ private:
 
     // Logic 
     void initOpenAL();
-    void updateEmitters();
-    void updateListener();
+    void updateEmitters(double dt);
+    void updateListener(double dt);
     void deleteInactiveEmitters();
-    void addNewEmitters();
+    void addNewEmitters(double dt);
     Source* createSource(std::string filePath);
     void playSound(Source* source);
     void stopSound(Source* source);

src/Engine/Sound/SoundSystem.cpp

@@ -47,13 +47,13 @@ void SoundSystem::stopEmitters()
     }
 }
 
-void SoundSystem::Update()
+void SoundSystem::Update(double dt)
 { 
     m_EventBroker->Process<SoundSystem>();
-    addNewEmitters(); // can be optimized with "EEntityCreated"
+    addNewEmitters(dt); // can be optimized with "EEntityCreated"
     deleteInactiveEmitters(); // can be optimized with "EEntityDeleted"
-    updateEmitters();
-    updateListener();
+    updateEmitters( dt);
+    updateListener( dt);
 }
 
 void SoundSystem::deleteInactiveEmitters()
@@ -85,7 +85,7 @@ void SoundSystem::deleteInactiveEmitters()
     }
 }
 
-void SoundSystem::addNewEmitters()
+void SoundSystem::addNewEmitters(double dt)
 {
     auto emitterComponents = m_World->GetComponents("SoundEmitter");
     if (emitterComponents == nullptr) {
@@ -102,7 +102,7 @@ void SoundSystem::addNewEmitters()
     }
 }
 
-void SoundSystem::updateEmitters()
+void SoundSystem::updateEmitters(double dt)
 {
     std::unordered_map<EntityID, Source*>::iterator it;
     for (it = m_Sources.begin(); it != m_Sources.end(); it++) {
@@ -133,9 +133,8 @@ void SoundSystem::updateEmitters()
     }
 }
 
-void SoundSystem::updateListener()
+void SoundSystem::updateListener(double dt)
 {
-    int testremove = 0;
     // Should only be one listener.
     auto listenerComponents = m_World->GetComponents("Listener");
     if (listenerComponents == nullptr) {
@@ -146,14 +145,10 @@ void SoundSystem::updateListener()
         glm::vec3 previousPos;
         alGetListener3f(AL_POSITION, &previousPos.x, &previousPos.y, &previousPos.z); // Get previous pos
         glm::vec3 nextPos = Transform::AbsolutePosition(m_World, listener); // Get next (current) pos
-        glm::vec3 velocity = nextPos - previousPos; // Calculate velocity
+        glm::vec3 velocity = glm::vec3(nextPos - previousPos) / (float)dt; // Calculate velocity
         setListenerPos(nextPos);
-        //setListenerVel(velocity);
+        setListenerVel(velocity);
         setListenerOri(glm::eulerAngles(Transform::AbsoluteOrientation(m_World, listener)));
-        testremove++;
-    }
-    if (testremove > 1) {
-        testremove = 0;
     }
 }
 

src/Game/Game.cpp

@@ -127,7 +127,7 @@ void Game::Tick()
     debugTick(dt);
     m_Renderer->Update(dt);
     m_EventBroker->Process<Client>();
-    m_SoundSystem->Update();
+    m_SoundSystem->Update(dt);
     GLERROR("Game::Tick m_RenderQueueFactory->Update");
     m_Renderer->Draw(*m_RenderFrame);
     GLERROR("Game::Tick m_Renderer->Draw");