maintain a pointer to owning avatar from HeadData

interface/src/Avatar.cpp

@@ -71,6 +71,7 @@ float chatMessageHeight = 0.10;
 
 Avatar::Avatar(Agent* owningAgent, bool isMine) :
     AvatarData(owningAgent),
+    _head(this),
     _isMine(isMine),
     _TEST_bigSphereRadius(0.4f),
     _TEST_bigSpherePosition(5.0f, _TEST_bigSphereRadius, 5.0f),

interface/src/Head.cpp

@@ -30,8 +30,8 @@ unsigned int IRIS_TEXTURE_WIDTH  = 768;
 unsigned int IRIS_TEXTURE_HEIGHT = 498;
 vector<unsigned char> irisTexture;
 
-Head::Head() :
-
+Head::Head(Avatar* owningAvatar) :
+    HeadData((AvatarData*)owningAvatar),
     yawRate(0.0f),
     _returnHeadToCenter(false),
     _audioLoudness(0.0f),

interface/src/Head.h

@@ -24,9 +24,11 @@ enum eyeContactTargets
     MOUTH
 };
 
+class Avatar;
+
 class Head : public HeadData {
 public:
-    Head();
+    Head(Avatar* owningAvatar);
     
     void reset();
     void simulate(float deltaTime, bool isMine);

libraries/avatars/src/AvatarData.cpp

@@ -68,7 +68,7 @@ int AvatarData::getBroadcastData(unsigned char* destinationBuffer) {
     
     // lazily allocate memory for HeadData in case we're not an Avatar instance
     if (!_headData) {
-        _headData = new HeadData();
+        _headData = new HeadData(this);
     }
     
     // Body world position
@@ -149,7 +149,7 @@ int AvatarData::parseData(unsigned char* sourceBuffer, int numBytes) {
 
     // lazily allocate memory for HeadData in case we're not an Avatar instance
     if (!_headData) {
-        _headData = new HeadData();
+        _headData = new HeadData(this);
     }
 
     // increment to push past the packet header

libraries/avatars/src/HeadData.cpp

@@ -8,13 +8,14 @@
 
 #include "HeadData.h"
 
-HeadData::HeadData() :
+HeadData::HeadData(AvatarData* owningAvatar) :
     _yaw(0.0f),
     _pitch(0.0f),
     _roll(0.0f),
     _lookAtPosition(0.0f, 0.0f, 0.0f),
     _leanSideways(0.0f),
-    _leanForward(0.0f)
+    _leanForward(0.0f),
+    _owningAvatar(owningAvatar)
 {
     
 }

libraries/avatars/src/HeadData.h

@@ -20,9 +20,11 @@ const float MAX_HEAD_PITCH = 60;
 const float MIN_HEAD_ROLL = -50;
 const float MAX_HEAD_ROLL = 50;
 
+class AvatarData;
+
 class HeadData {
 public:
-    HeadData();
+    HeadData(AvatarData* owningAvatar);
     
     float getLeanSideways() const { return _leanSideways; }
     void setLeanSideways(float leanSideways) { _leanSideways = leanSideways; }
@@ -55,6 +57,7 @@ protected:
     glm::vec3 _lookAtPosition;
     float _leanSideways;
     float _leanForward;
+    AvatarData* _owningAvatar;
 private:
     // privatize copy ctor and assignment operator so copies of this object cannot be made
     HeadData(const HeadData&);