public SpellHandler.SpellType EndGesture()
{
//If the gesture was already ended
if (lNextSample == -1 && rNextSample == -1)
{
return(SpellHandler.SpellType.NONE);
}
lNextSample = -1;
rNextSample = -1;
Gesture.GestureHand hands = currentGesture.GetCurHands();
//If there's only 1 node in one of the hands just delete the gesture and stop cause otherwise bad things happen during conversion
if ((hands == Gesture.GestureHand.LEFT && currentGesture.NumNodes(Gesture.GestureHand.LEFT) < 2) ||
(hands == Gesture.GestureHand.RIGHT && currentGesture.NumNodes(Gesture.GestureHand.RIGHT) < 2) ||
(hands == Gesture.GestureHand.BOTH && (currentGesture.NumNodes(Gesture.GestureHand.LEFT) < 2 || currentGesture.NumNodes(Gesture.GestureHand.RIGHT) < 2)))
{
currentGesture = null;
return(SpellHandler.SpellType.NONE);
}
currentGesture.ChangeNumNodes(samplesPerGesture);
return(FindBestMatch(currentGesture));
}
//Returns the index of the best match in validGestures or -1 if none are close enough
private SpellHandler.SpellType FindBestMatch(Gesture inputGesture)
{
SpellHandler.SpellType bestMatch = SpellHandler.SpellType.NONE;
float matchDiff = 0;
Gesture.GestureHand hands = inputGesture.GetCurHands();
if ((hands == Gesture.GestureHand.BOTH && (inputGesture.NumNodes(Gesture.GestureHand.LEFT) == 1 || inputGesture.NumNodes(Gesture.GestureHand.RIGHT) == 1)) ||
(hands != Gesture.GestureHand.BOTH && inputGesture.NumNodes(hands) == 1))
{
return(bestMatch);
}
if (hands == Gesture.GestureHand.BOTH)
{
Debug.Log("both hands involved");
//If there's only 1 node just stop
if (inputGesture.NumNodes(Gesture.GestureHand.LEFT) < 2 || inputGesture.NumNodes(Gesture.GestureHand.RIGHT) < 2)
{
return(bestMatch);
}
foreach (Gesture g in twoHandGestures)
{
float diff = g.AverageDifference(inputGesture, lengthAccuracyFactor, Gesture.GestureHand.LEFT)
+ g.AverageDifference(inputGesture, lengthAccuracyFactor, Gesture.GestureHand.RIGHT) / 2;
//Debug.Log("diff = " + diff);
if ((bestMatch == SpellHandler.SpellType.NONE && diff < accuracyPerSample) || diff < matchDiff)
{
bestMatch = g.GetSpell();
matchDiff = diff;
}
}
}
else
{
//If there's only 1 node just stop
if (inputGesture.NumNodes(hands) < 2)
{
return(bestMatch);
}
foreach (Gesture g in oneHandGestures)
{
float diff = g.AverageDifference(inputGesture, lengthAccuracyFactor, hands);
//Debug.Log("diff = " + diff);
if ((bestMatch == SpellHandler.SpellType.NONE && diff < accuracyPerSample) || diff < matchDiff)
{
bestMatch = g.GetSpell();
matchDiff = diff;
}
}
}
return(bestMatch);
}
