/// <summary>
/// Adds a new LeapMotionArticulatedHand to the scene.
/// </summary>
/// <param name="handedness">The handedness (Handedness.Left or Handedness.Right) of the hand to be added</param>
private void OnHandDetected(Handedness handedness)
{
// Only create a new hand if the hand does not exist
if (!trackedHands.ContainsKey(handedness))
{
var pointers = RequestPointers(SupportedControllerType.ArticulatedHand, handedness);
var inputSource = CoreServices.InputSystem?.RequestNewGenericInputSource($"Leap {handedness} Controller", pointers, InputSourceType.Hand);
var leapHand = new EskyLeapMotionArticulatedHand(TrackingState.Tracked, handedness, inputSource);
// Set pinch thresholds
leapHand.handDefinition.EnterPinchDistance = enterPinchDistance;
leapHand.handDefinition.ExitPinchDistance = exitPinchDistance;
// Set the leap attachment hand to the corresponding handedness
if (handedness == Handedness.Left)
{
leapHand.SetAttachmentHands(leftAttachmentHand, LeapMotionServiceProvider);
}
else // handedness == Handedness.Right
{
leapHand.SetAttachmentHands(rightAttachmentHand, LeapMotionServiceProvider);
}
// Set the pointers for an articulated hand to the leap hand
foreach (var pointer in pointers)
{
pointer.Controller = leapHand;
}
trackedHands.Add(handedness, leapHand);
CoreServices.InputSystem.RaiseSourceDetected(inputSource, leapHand);
}
}
/// <inheritdoc />
public override void Enable()
{
base.Enable();
switch (leapControllerOrientation)
{
case EskyLeapControllerOrientation.Headset:
CameraCache.Main.gameObject.AddComponent <LeapXRServiceProvider>();
break;
case EskyLeapControllerOrientation.Desk:
GameObject leapProviderDesk = new GameObject("LeapProvider");
// The LeapServiceProvider does not need to be attached to a camera, but the location of this gameobject is the anchor for the desk hands
LeapMotionServiceProvider = leapProviderDesk.AddComponent <LeapServiceProvider>();
// Follow the transform of the main camera by adding the service provider as a child of the main camera
leapProviderDesk.transform.parent = CameraCache.Main.transform;
// Apply hand position offset, an offset is required to render the hands in view and in front of the camera
LeapMotionServiceProvider.transform.position += leapHandsOffset;
break;
case EskyLeapControllerOrientation.Esky:
GameObject LeapProviderEsky = GameObject.Find("LeapMotion");
if (LeapProviderEsky != null)
{
LeapMotionServiceProvider = LeapProviderEsky.GetComponent <LeapXRServiceProvider>();
}
else
{
Debug.LogError("Couldn't find a 'LeapMotion' game object in scene, the Esky Leapmotion provider needs this!");
}
break;
}
// Add the attachment hands to the scene for the purpose of getting the tracking state of each hand and joint positions
GameObject leapAttachmentHandsGameObject = new GameObject("LeapAttachmentHands");
leapAttachmentHands = leapAttachmentHandsGameObject.AddComponent <AttachmentHands>();
// The first hand in attachmentHands.attachmentHands is always left
leftAttachmentHand = leapAttachmentHands.attachmentHands[0];
// The second hand in attachmentHands.attachmentHands is always right
rightAttachmentHand = leapAttachmentHands.attachmentHands[1];
// Enable all attachment point flags in the leap hand. By default, only the wrist and the palm are enabled.
foreach (TrackedHandJoint joint in Enum.GetValues(typeof(TrackedHandJoint)))
{
leapAttachmentHands.attachmentPoints |= EskyLeapMotionArticulatedHand.ConvertMRTKJointToLeapJoint(joint);
}
}
