Determine which hand to compare or load automatically

Assets/Gesture/GestureLoader.cs

@@ -10,6 +10,9 @@ public class GestureLoader
 		CSVOutputGrid csvGrid = CSVReader.SplitCsvGrid (reader.ReadToEnd ());
 		string[,] csvStrings = csvGrid.grid;
 
+		bool loadLeftHand = true;
+		bool handDetermined = false;
+
 		List<GestureState> states = new List<GestureState>();
 		for (int i = 0; i < csvGrid.linesLength; i++)
 		{
@@ -22,16 +25,36 @@ public class GestureLoader
 			//we need timestamp, x, y, z of palm
 			string[] line = csvStrings[0,i].Split (' ');
 
+			//determine which hand to load
+			if (!handDetermined && float.Parse (line [1]) == 0)
+			{
+				loadLeftHand = false;
+				handDetermined = true;
+			}
+
 			//for now we only save the left palm's coordinates
 			GestureState state = new GestureState ();
 			state.timestamp = float.Parse(line [0]);
-			state.position.x = float.Parse(line [1]);
-			state.position.y = float.Parse(line [2]);
-			state.position.z = float.Parse(line [3]);
-			state.rotation.x = float.Parse(line [4]);
-			state.rotation.y = float.Parse(line [5]);
-			state.rotation.z = float.Parse(line [6]);
-			state.rotation.w = float.Parse(line [7]);
+			if (loadLeftHand)
+			{
+				state.position.x = float.Parse (line [1]);
+				state.position.y = float.Parse (line [2]);
+				state.position.z = float.Parse (line [3]);
+				state.rotation.x = float.Parse (line [4]);
+				state.rotation.y = float.Parse (line [5]);
+				state.rotation.z = float.Parse (line [6]);
+				state.rotation.w = float.Parse (line [7]);
+			}
+			else
+			{
+				state.position.x = float.Parse (line [8]);
+				state.position.y = float.Parse (line [9]);
+				state.position.z = float.Parse (line [10]);
+				state.rotation.x = float.Parse (line [11]);
+				state.rotation.y = float.Parse (line [12]);
+				state.rotation.z = float.Parse (line [13]);
+				state.rotation.w = float.Parse (line [14]);
+			}
 			states.Add (state);
 		}
 		reader.Close();

Assets/Replay/LiveComparer.cs

@@ -24,6 +24,7 @@ public class LiveComparer : MonoBehaviour
 	Vector4 leftPalmRotation = Vector3.zero;
 	Vector3 rightPalmPosition = Vector3.zero;
 	Vector4 rightPalmRotation = Vector3.zero;
+	bool compareLeftHand = false;
 
 	Vector3 offsetPosition = Vector3.zero;
 
@@ -42,7 +43,7 @@ public class LiveComparer : MonoBehaviour
 		if (replay.currentFrame >= 0 && replay.currentFrame < 100)
 		{
 			if (replay.currentFrame == 0)
-				UpdateOffsetPosition ();
+				InitializeComparison ();
 			
 			ComputeFrameScore ();
 
@@ -71,6 +72,21 @@ public class LiveComparer : MonoBehaviour
 		backgroundCircle.transform.Rotate(new Vector3(0, -backGroundAngleOffset, 0)); //offset for target
 	}
 
+	void InitializeComparison()
+	{
+		UpdateOffsetPosition ();
+		FindHandToCompare ();
+	}
+
+	void FindHandToCompare()
+	{
+		//if left hand palm has non null values, chose it for comparison. Otherwise chose the right hand
+		if (leftPalmPosition.x != 0 && leftPalmPosition.y != 0 && leftPalmPosition.z != 0)
+			compareLeftHand = true;
+		else
+			compareLeftHand = false;
+	}
+
 	void UpdateOffsetPosition ()
 	{
 		offsetPosition = replay.gestureToReplay.states [replay.currentFrame].position - leftPalmPosition;
@@ -82,7 +98,21 @@ public class LiveComparer : MonoBehaviour
 		frameScore = scoreOffset;
 		float scoreFactor = 100.0f;
 
-		Vector3 differencePosition = offsetPosition + leftPalmPosition - replay.gestureToReplay.states [replay.currentFrame].position;
+		Vector3 palmPosition = Vector3.zero;
+		Vector3 palmRotation = Vector3.zero;
+
+		if (compareLeftHand)
+		{
+			palmPosition = leftPalmPosition;
+			palmRotation = leftPalmRotation;
+		}
+		else
+		{
+			palmPosition = rightPalmPosition;
+			palmRotation = rightPalmRotation;
+		}
+
+		Vector3 differencePosition = offsetPosition + palmPosition - replay.gestureToReplay.states [replay.currentFrame].position;
 		Vector4 differenceRotation = leftPalmRotation - replay.gestureToReplay.states [replay.currentFrame].rotation;
 		Vector3 variancePosition = replay.gestureVariance.states [replay.currentFrame].position;
 		Vector4 varianceRotation = replay.gestureVariance.states [replay.currentFrame].rotation;