example of how audio could be implemented (#19)

source/scone/audio/audio.d

@@ -0,0 +1,66 @@
+module scone.audio.audio;
+
+interface StandardAudio
+{
+
+}
+
+class DummyAudio : StandardAudio
+{
+
+}
+
+alias AudioId = size_t;
+
+class Audio
+{
+    this(StandardAudio standardAudio)
+    {
+
+    }
+
+    AudioId register(string path)
+    {
+        this.tempAudioIdCounter++;
+        return tempAudioIdCounter;
+    }
+
+    AudioHandle play(AudioId id)
+    {
+        return new AudioHandle(id);
+    }
+
+    void stop(ref AudioHandle handle)
+    {
+        handle = null;
+    }
+
+    private uint tempAudioIdCounter;
+}
+
+class AudioHandle
+{
+    this(AudioId id)
+    {
+        this.id = id;
+    }
+
+    private AudioId id;
+}
+
+unittest
+{
+    auto standardAudio = new DummyAudio();
+    auto audio = new Audio(standardAudio);
+
+    auto audioId1 = audio.register("audio/snd1");
+    auto audioId2 = audio.register("audio/snd1");
+
+    assert(audioId1 != audioId2);
+
+    auto audioHandle1 = audio.play(audioId1);
+    assert(audioHandle1 !is null);
+
+    audio.stop(audioHandle1);
+    assert(audioHandle1 is null);
+}