private GestureDirection GetFingerEntryGestureDirection(FingerEntry fingerEntry, float minimumComponentValue)
{
GestureDirection gestureDirection = GestureDirection.None;
Vector3 startEnd = fingerEntry.GetStartEndDifference();
if (startEnd.x > minimumComponentValue)
{
gestureDirection = GestureDirection.Right;
}
else if (startEnd.x < -minimumComponentValue)
{
gestureDirection = GestureDirection.Left;
}
else if (startEnd.y < -minimumComponentValue)
{
gestureDirection = GestureDirection.Down;
}
else if (startEnd.y > minimumComponentValue)
{
gestureDirection = GestureDirection.Up;
}
else if (startEnd.z > minimumComponentValue)
{
gestureDirection = GestureDirection.Forward;
}
else if (startEnd.z < -minimumComponentValue)
{
gestureDirection = GestureDirection.Back;
}
return(gestureDirection);
}
private void UpdateFingerEntries(Frame frame)
{
List <int> fingerIDsUpdated = new List <int>();
foreach (Finger finger in frame.Fingers)
{
if (finger.IsValid)
{
if (!IsUsingHandSphereForFingerRemovalInUpdate || IsFingerAppropriateToTrack(finger))
{
if (!FingerEntries.ContainsKey(finger.Id))
{
FingerEntry entry = new FingerEntry(finger, _handParentObjectCurrentOffset);
FingerEntries.Add(finger.Id, entry);
//Debug.Log("Entry "+finger.Id+" added.");
}
else
{
FingerEntries[finger.Id].AddEntryData(finger, _handParentObjectCurrentOffset);
}
}
fingerIDsUpdated.Add(finger.Id);
}
}
// Each entry that was not updated should be removed from entries
List <int> keysToRemove = new List <int>();
foreach (int id in FingerEntries.Keys)
{
if (!fingerIDsUpdated.Contains(id))
{
keysToRemove.Add(id);
//Debug.Log("Entry " + id + " removed.");
}
}
foreach (int id in keysToRemove)
{
FingerEntries.Remove(id);
}
}
/// <summary>
/// Checks if any of finger entries has tip position that moved for a given
/// </summary>
private void CheckFingerEntries()
{
foreach (KeyValuePair <int, FingerEntry> keyValuePair in FingerEntries)
{
FingerEntry entry = keyValuePair.Value;
GestureDirection gestureDirection = GetFingerEntryGestureDirection(entry, FixedAmountFromDetectionOneDirection);
if (gestureDirection != GestureDirection.None)
{
List <GestureDirection> gestureDirections = new List <GestureDirection>()
{
gestureDirection
};
entry.Clear();
// search for any other that have the smaller minimum component value and quit the search
foreach (KeyValuePair <int, FingerEntry> keyValuePair2 in FingerEntries)
{
if (keyValuePair.Key != keyValuePair2.Key)
{
GestureDirection gestureDirection2 = GetFingerEntryGestureDirection(keyValuePair2.Value,
FixedAmountFromDetectionOneDirection - FixedAmountFromDetectionSecondDirectionDifference);
if (gestureDirection2 != GestureDirection.None)
{
gestureDirections.Add(gestureDirection2);
keyValuePair2.Value.Clear();
}
}
}
Debug.Log("First gesture: " + gestureDirections[0].ToString() + " of " + gestureDirections.Count + " fingers.");
return;
}
}
}
