Rave Glove Demo: Restructuring palm and finger data structures

interface/src/Hand.cpp

@@ -21,9 +21,7 @@ Hand::Hand(Avatar* owningAvatar) :
     _owningAvatar(owningAvatar),
     _renderAlpha(1.0),
     _lookingInMirror(false),
-    _ballColor(0.0, 0.0, 0.4),
-    _position(0.0, 0.4, 0.0),
-    _orientation(0.0, 0.0, 0.0, 1.0)
+    _ballColor(0.0, 0.0, 0.4)
 {
 }
 
@@ -42,23 +40,18 @@ void Hand::reset() {
 void Hand::simulate(float deltaTime, bool isMine) {
 }
 
-glm::vec3 Hand::leapPositionToWorldPosition(const glm::vec3& leapPosition) {
-    float unitScale = 0.001; // convert mm to meters
-    return _position + _orientation * (leapPosition * unitScale);
-}
-
 void Hand::calculateGeometry() {
-    glm::vec3 offset(0.2, -0.2, -0.3);  // place the hand in front of the face where we can see it
     
+    glm::vec3 handOffset(0.2, -0.2, -0.3);  // place the hand in front of the face where we can see it
     Head& head = _owningAvatar->getHead();
-    _position = head.getPosition() + head.getOrientation() * offset;
-    _orientation = head.getOrientation();
+    _basePosition = head.getPosition() + head.getOrientation() * handOffset;
+    _baseOrientation = head.getOrientation();
 
     int numLeapBalls = _fingerTips.size();
     _leapBalls.resize(numLeapBalls);
     
     for (int i = 0; i < _fingerTips.size(); ++i) {
-        _leapBalls[i].rotation = _orientation;
+        _leapBalls[i].rotation = _baseOrientation;
         _leapBalls[i].position = leapPositionToWorldPosition(_fingerTips[i]);
         _leapBalls[i].radius         = 0.01;
         _leapBalls[i].touchForce     = 0.0;

interface/src/Hand.h

@@ -52,9 +52,6 @@ public:
     const glm::vec3& getLeapBallPosition       (int ball)       const { return _leapBalls[ball].position;}
     bool isRaveGloveActive                     ()               const { return _isRaveGloveActive; }
 
-    // position conversion
-    glm::vec3 leapPositionToWorldPosition(const glm::vec3& leapPosition);
-
 private:
     // disallow copies of the Hand, copy of owning Avatar is disallowed too
     Hand(const Hand&);
@@ -65,8 +62,8 @@ private:
     bool        _lookingInMirror;
     bool        _isRaveGloveActive;
     glm::vec3   _ballColor;
-    glm::vec3   _position;
-    glm::quat   _orientation;
+//    glm::vec3   _position;
+//    glm::quat   _orientation;
     std::vector<HandBall>	_leapBalls;
     
     // private methods

libraries/avatars/src/HandData.cpp

@@ -9,7 +9,29 @@
 #include "HandData.h"
 
 HandData::HandData(AvatarData* owningAvatar) :
+    _basePosition(0.0f, 0.0f, 0.0f),
+    _baseOrientation(0.0f, 0.0f, 0.0f, 1.0f),
     _owningAvatarData(owningAvatar)
 {
-    
+    for (int i = 0; i < 2; ++i)
+        _palms.push_back(PalmData(this));
+}
+
+PalmData::PalmData(HandData* owningHandData) :
+_rawPosition(0, 0, 0),
+_rawNormal(0, 1, 0),
+_isActive(false),
+_owningHandData(owningHandData)
+{
+    for (int i = 0; i < 5; ++i)
+        _fingers.push_back(FingerData(this, owningHandData));
+}
+
+FingerData::FingerData(PalmData* owningPalmData, HandData* owningHandData) :
+_tipRawPosition(0, 0, 0),
+_rootRawPosition(0, 0, 0),
+_isActive(false),
+_owningPalmData(owningPalmData),
+_owningHandData(owningHandData)
+{
 }

libraries/avatars/src/HandData.h

@@ -13,8 +13,11 @@
 #include <vector>
 
 #include <glm/glm.hpp>
+#include <glm/gtx/quaternion.hpp>
 
 class AvatarData;
+class FingerData;
+class PalmData;
 
 class HandData {
 public:
@@ -31,17 +34,55 @@ public:
     void setHandPositions(const std::vector<glm::vec3>& handPositons) { _handPositions = handPositons; }
     void setHandNormals(const std::vector<glm::vec3>& handNormals) { _handNormals = handNormals; }
     
+    // position conversion
+    glm::vec3 leapPositionToWorldPosition(const glm::vec3& leapPosition) {
+        float unitScale = 0.001;            // convert mm to meters
+        return _basePosition + _baseOrientation * (leapPosition * unitScale);
+    }
+    glm::vec3 leapDirectionToWorldDirection(const glm::vec3& leapDirection) {
+        return glm::normalize(_baseOrientation * leapDirection);
+    }
+
     friend class AvatarData;
 protected:
     std::vector<glm::vec3> _fingerTips;
     std::vector<glm::vec3> _fingerRoots;
     std::vector<glm::vec3> _handPositions;
     std::vector<glm::vec3> _handNormals;
+    glm::vec3              _basePosition;      // Hands are placed relative to this
+    glm::quat              _baseOrientation;   // Hands are placed relative to this
     AvatarData* _owningAvatarData;
+    std::vector<PalmData>  _palms;
 private:
     // privatize copy ctor and assignment operator so copies of this object cannot be made
     HandData(const HandData&);
     HandData& operator= (const HandData&);
 };
 
+class FingerData {
+public:
+    FingerData(PalmData* owningPalmData, HandData* owningHandData);
+private:
+    glm::vec3 _tipRawPosition;
+    glm::vec3 _rootRawPosition;
+    bool      _isActive;        // This has current valid data
+    PalmData* _owningPalmData;
+    HandData* _owningHandData;
+};
+
+class PalmData {
+public:
+    PalmData(HandData* owningHandData);
+    glm::vec3 getPosition() const { return _owningHandData->leapPositionToWorldPosition(_rawPosition); }
+    glm::vec3 getNormal()   const { return _owningHandData->leapDirectionToWorldDirection(_rawNormal); }
+    const glm::vec3& getRawPosition() const { return _rawPosition; }
+    const glm::vec3& getRawNormal()   const { return _rawNormal; }
+private:
+    std::vector<FingerData> _fingers;
+    glm::vec3 _rawPosition;
+    glm::vec3 _rawNormal;
+    bool      _isActive;        // This has current valid data
+    HandData* _owningHandData;
+};
+
 #endif /* defined(__hifi__HandData__) */