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Licensed under Apache 2.0 * * Available at http://www.apache.org/licenses/LICENSE-2.0.html * \******************************************************************************/ using UnityEngine; using System.Collections; using Leap; // Interface for all hands. public abstract class HandModel : MonoBehaviour { public const int NUM_FINGERS = 5; public float handModelPalmWidth = 0.085f; public FingerModel[] fingers = new FingerModel[NUM_FINGERS]; protected Hand hand_; protected HandController controller_; protected bool mirror_z_axis_ = false; public Vector3 GetHandOffset() { if (controller_ == null || hand_ == null) return Vector3.zero; Vector3 additional_movement = controller_.handMovementScale - Vector3.one; Vector3 scaled_wrist_position = Vector3.Scale(additional_movement, hand_.WristPosition.ToUnityScaled(mirror_z_axis_)); return controller_.transform.TransformPoint(scaled_wrist_position) - controller_.transform.position; } // Returns the palm position of the hand in relation to the controller. public Vector3 GetPalmPosition() { return controller_.transform.TransformPoint(hand_.PalmPosition.ToUnityScaled(mirror_z_axis_)) + GetHandOffset(); } // Returns the palm rotation of the hand in relation to the controller. public Quaternion GetPalmRotation() { return GetController().transform.rotation * GetLeapHand().Basis.Rotation(mirror_z_axis_); } // Returns the palm direction of the hand in relation to the controller. public Vector3 GetPalmDirection() { return controller_.transform.TransformDirection(hand_.Direction.ToUnity(mirror_z_axis_)); } // Returns the palm normal of the hand in relation to the controller. public Vector3 GetPalmNormal() { return controller_.transform.TransformDirection(hand_.PalmNormal.ToUnity(mirror_z_axis_)); } // Returns the lower arm direction in relation to the controller. public Vector3 GetArmDirection() { return controller_.transform.TransformDirection(hand_.Arm.Direction.ToUnity(mirror_z_axis_)); } // Returns the lower arm center in relation to the controller. public Vector3 GetArmCenter() { Vector leap_center = 0.5f * (hand_.Arm.WristPosition + hand_.Arm.ElbowPosition); return controller_.transform.TransformPoint(leap_center.ToUnityScaled(mirror_z_axis_)) + GetHandOffset(); } // Returns the length of the forearm public float GetArmLength() { return (hand_.Arm.WristPosition - hand_.Arm.ElbowPosition).Magnitude * UnityVectorExtension.INPUT_SCALE; } // Returns the width of the forearm public float GetArmWidth() { return hand_.Arm.Width * UnityVectorExtension.INPUT_SCALE; } // Returns the lower arm elbow position in relation to the controller. public Vector3 GetElbowPosition() { Vector3 local_position = hand_.Arm.ElbowPosition.ToUnityScaled(mirror_z_axis_); return controller_.transform.TransformPoint(local_position) + GetHandOffset(); } // Returns the lower arm wrist position in relation to the controller. public Vector3 GetWristPosition() { Vector3 local_position = hand_.Arm.WristPosition.ToUnityScaled(mirror_z_axis_); return controller_.transform.TransformPoint(local_position) + GetHandOffset(); } // Returns the rotation quaternion of the arm in relation to the controller. public Quaternion GetArmRotation() { Quaternion local_rotation = hand_.Arm.Basis.Rotation(mirror_z_axis_); return controller_.transform.rotation * local_rotation; } public Hand GetLeapHand() { return hand_; } public void SetLeapHand(Hand hand) { hand_ = hand; for (int i = 0; i < fingers.Length; ++i) { if (fingers[i] != null) { fingers[i].SetLeapHand(hand_); fingers[i].SetOffset(GetHandOffset()); } } } public void MirrorZAxis(bool mirror = true) { mirror_z_axis_ = mirror; for (int i = 0; i < fingers.Length; ++i) { if (fingers[i] != null) fingers[i].MirrorZAxis(mirror); } } public bool IsMirrored() { return mirror_z_axis_; } public HandController GetController() { return controller_; } public void SetController(HandController controller) { controller_ = controller; for (int i = 0; i < fingers.Length; ++i) { if (fingers[i] != null) fingers[i].SetController(controller_); } } public abstract void InitHand(); public abstract void UpdateHand(); } HandModelAssembly-CSharp.dll