yes! saving and loading works!

sync/device.h

@@ -25,10 +25,14 @@ namespace sync
 	class Device
 	{
 	public:
+		Device(const std::string &baseName) : baseName(baseName) {}
 		virtual ~Device() {}
 		
 		virtual Track &getTrack(const std::string &trackName) = 0;
 		virtual bool update(float row) = 0;
+	protected:
+		std::string getTrackFileName(std::string trackName);
+		const std::string baseName;
 	};
 	
 	Device *createDevice(const std::string &baseName, Timer &timer);

sync/device_client.cpp

@@ -12,7 +12,7 @@ class ClientDevice : public Device
 {
 public:
 	ClientDevice(const std::string &baseName, SOCKET serverSocket, Timer &timer) :
-		baseName(baseName),
+		Device(baseName),
 		timer(timer),
 		serverSocket(serverSocket),
 		serverRow(-1)
@@ -25,10 +25,8 @@ public:
 	bool update(float row);
 	
 private:
-	std::string getTrackFileName(std::string trackName);
 	void saveTracks();
 
-	const std::string baseName;
 	sync::Data syncData;
 	Timer &timer;
 	
@@ -161,15 +159,6 @@ bool ClientDevice::update(float row)
 	return !done;
 }
 
-std::string ClientDevice::getTrackFileName(std::string trackName)
-{
-	std::string fileName = baseName.c_str();
-	fileName += "_";
-	fileName += trackName;
-	fileName += ".track";
-	return fileName;
-}
-
 static bool saveTrack(const sync::Track &track, std::string fileName)
 {
 	FILE *fp = fopen(fileName.c_str(), "wb");

sync/device_player.cpp

@@ -12,7 +12,7 @@ class PlayerDevice : public Device
 {
 public:
 	PlayerDevice(const std::string &baseName, Timer &timer) :
-		baseName(baseName),
+		Device(baseName),
 		timer(timer)
 	{
 	}
@@ -23,13 +23,43 @@ public:
 	bool update(float row);
 	
 private:
-	const std::string &baseName;
 	sync::Data syncData;
 	Timer &timer;
 };
 
 PlayerDevice::~PlayerDevice() { }
 
+static bool loadTrack(sync::Track &track, std::string fileName)
+{
+	FILE *fp = fopen(fileName.c_str(), "rb");
+	if (NULL == fp) return false;
+	
+	size_t keyFrameCount;
+	fread(&keyFrameCount, sizeof(size_t), 1, fp);
+	
+	for (size_t i = 0; i < keyFrameCount; ++i)
+	{
+		size_t row;
+		float value;
+		char interp;
+		fread(&row, sizeof(size_t), 1, fp);
+		fread(&value, sizeof(float), 1, fp);
+		fread(&interp, sizeof(char), 1, fp);
+		
+		track.setKeyFrame(row,
+			Track::KeyFrame(
+				value, 
+				Track::KeyFrame::InterpolationType(interp)
+			)
+		);
+	}
+	
+	fclose(fp);
+	fp = NULL;
+	return true;
+}
+
+
 Track &PlayerDevice::getTrack(const std::string &trackName)
 {
 	sync::Data::TrackContainer::iterator iter = syncData.tracks.find(trackName);
@@ -37,9 +67,10 @@ Track &PlayerDevice::getTrack(const std::string &trackName)
 	
 	sync::Track *track = new sync::Track();
 	
-	// TODO: load data from file
+	assert(NULL != track);
-	track->setKeyFrame(0,   Track::KeyFrame(1.0f, Track::KeyFrame::IT_LERP));
+	loadTrack(*track, getTrackFileName(trackName));
-	track->setKeyFrame(10,  Track::KeyFrame(0.0f, Track::KeyFrame::IT_LERP));
+/*	track->setKeyFrame(0,   Track::KeyFrame(1.0f, Track::KeyFrame::IT_LERP));
+	track->setKeyFrame(10,  Track::KeyFrame(0.0f, Track::KeyFrame::IT_LERP)); */
 	
 	size_t index = syncData.actualTracks.size();
 	syncData.actualTracks.push_back(track);

sync_player.vcproj

@@ -275,6 +275,10 @@
 				>
 			</File>
 			<File
+				RelativePath=".\sync\device.cpp"
+				>
+			</File>
+			<File
 				RelativePath=".\sync\device_client.cpp"
 				>
 				<FileConfiguration