1 files changed, 21 insertions, 0 deletions
diff --git a/src/crepe/system/AudioSystem.h b/src/crepe/system/AudioSystem.h
index e037f51..7f41fda 100644
--- a/src/crepe/system/AudioSystem.h
+++ b/src/crepe/system/AudioSystem.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "../facade/SoundContext.h"
+#include "../api/AudioSource.h"
 
 #include "System.h"
 
@@ -12,6 +13,26 @@ public:
 	void update() override;
 
 private:
+	/**
+	 * \brief Private data stored by AudioSystem on AudioSource component
+	 */
+	struct ComponentPrivate {
+		//! This sample's voice handle
+		SoLoud::handle handle;
+
+		//! Value of \c active after last system update
+		bool last_active = false;
+		//! Value of \c playing after last system update
+		bool last_playing = false;
+		//! Value of \c volume after last system update
+		float last_volume = 1.0;
+		//! Value of \c loop after last system update
+		bool last_loop = false;
+	};
+
+	void update_private(const AudioSource & component, ComponentPrivate & data);
+
+private:
 	SoundContext context {};
 };