From eed19ec73698c8180a51c33fa56c7cfe7c0e60f0 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Thu, 3 Oct 2019 10:24:01 -0400
Subject: positional audio working

---
 src/audio.cpp  | 18 ++++++++++++++++--
 src/engine.cpp |  1 +
 2 files changed, 17 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/audio.cpp b/src/audio.cpp
index 8bb1413..2f14c97 100644
--- a/src/audio.cpp
+++ b/src/audio.cpp
@@ -19,6 +19,7 @@
  */
 
 #include "audio.hpp"
+#include "components/Player.hpp"
 
 #include <AL/alut.h>
 #include <iostream>
@@ -55,12 +56,25 @@ void AudioSystem::configure([[maybe_unused]] entityx::EntityManager& entities,
 
     if (alutInitWithoutContext(nullptr, nullptr) != AL_TRUE)
         return; // TODO Third uh oh
+
+    ALfloat listenerOri[] = { 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f };
+    alListener3f(AL_POSITION, 0, 0, 0.0f);
+    alListener3f(AL_VELOCITY, 0, 0, 0);
+    alListenerfv(AL_ORIENTATION, listenerOri);
 }
 
-void AudioSystem::update([[maybe_unused]] entityx::EntityManager& entities,
+void AudioSystem::update(entityx::EntityManager& entities,
                          [[maybe_unused]] entityx::EventManager& events,
                          [[maybe_unused]] entityx::TimeDelta dt)
-{}
+{
+    entities.each<Player, Position>(
+        []([[maybe_unused]] entityx::Entity e,
+                   [[maybe_unused]] Player& p,
+                   Position &pos)
+        {
+            alListener3f(AL_POSITION, pos.x, pos.y, 0.0f);
+        });
+}
 
 void AudioSystem::receive(const entityx::ComponentAddedEvent<Audio>& cae)
 {
diff --git a/src/engine.cpp b/src/engine.cpp
index c6bec27..dc0c481 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -120,6 +120,7 @@ void Engine::logicLoop(void)
             });
         }
 
+        systems.update<AudioSystem>(dt);
         std::this_thread::yield();
     }
 }
-- 
cgit v1.2.3