Add recenter timer and temp API

interface/src/avatar/MyAvatar.cpp

@@ -3619,17 +3619,18 @@ void MyAvatar::updateOrientation(float deltaTime) {
         glm::vec3 avatarVectorRight = getWorldOrientation() * Vectors::RIGHT;
         float leftRightDot = glm::dot(cameraYawVector, avatarVectorRight);
 
-        const float REORIENT_ANGLE = 65.0f;
+        const float DEFAULT_REORIENT_ANGLE = 65.0f;
+        const float FIRST_PERSON_REORIENT_ANGLE = 95.0f;
         const float TRIGGER_REORIENT_ANGLE = 45.0f;
-        const float FIRST_PERSON_TRIGGER_REORIENT_ANGLE = 45.0f;
+        // const float FIRST_PERSON_TRIGGER_REORIENT_ANGLE = 45.0f;
         glm::vec3 ajustedYawVector = cameraYawVector;
         float limitAngle = 0.0f;
         float triggerAngle = -glm::sin(glm::radians(TRIGGER_REORIENT_ANGLE));
         if (mode == CAMERA_MODE_FIRST_PERSON) {
-            limitAngle = glm::sin(glm::radians(FIRST_PERSON_TRIGGER_REORIENT_ANGLE));
+            limitAngle = glm::sin(glm::radians(90.0f - _recenterAngle));
             triggerAngle = limitAngle;
         }
-        
+        float reorientAngle = mode == CAMERA_MODE_FIRST_PERSON ? FIRST_PERSON_REORIENT_ANGLE : DEFAULT_REORIENT_ANGLE;
         if (frontBackDot < limitAngle) {
             if (frontBackDot < 0.0f) {
                 ajustedYawVector = (leftRightDot < 0.0f ? -avatarVectorRight : avatarVectorRight);
@@ -3637,8 +3638,9 @@ void MyAvatar::updateOrientation(float deltaTime) {
             }
             if (frontBackDot < triggerAngle) {
                 _shouldTurnToFaceCamera = true;
+                _firstPersonSteadyHeadTimer = 0.0f;
             }
-        } else if (frontBackDot > glm::sin(glm::radians(REORIENT_ANGLE))) {
+        } else if (frontBackDot > glm::sin(glm::radians(reorientAngle))) {
             _shouldTurnToFaceCamera = false;
         }
 
@@ -3660,6 +3662,22 @@ void MyAvatar::updateOrientation(float deltaTime) {
             _lookAtCameraTarget = targetPoint;
         }
         _headLookAtActive = true;
+        // const float FIRST_PERSON_RECENTER_SECONDS = 5.0f;
+        if (mode == CAMERA_MODE_FIRST_PERSON) {
+            if (getDriveKey(YAW) + getDriveKey(STEP_YAW) + getDriveKey(DELTA_YAW) == 0.0f) {
+                if (_firstPersonSteadyHeadTimer < _recenterSeconds) {
+                    if (_firstPersonSteadyHeadTimer > 0.0f) {
+                        _firstPersonSteadyHeadTimer += deltaTime;
+                    }                    
+                } else {
+                    _shouldTurnToFaceCamera = true;
+                    _firstPersonSteadyHeadTimer = 0.0f;
+                }                
+            } else {
+                _firstPersonSteadyHeadTimer = deltaTime;
+            }
+        }
+        
     } else {
         head->setBaseYaw(0.0f);
         head->setBasePitch(getHead()->getBasePitch() + getDriveKey(PITCH) * _pitchSpeed * deltaTime
@@ -6754,4 +6772,30 @@ glm::vec3 MyAvatar::getLookAtPivotPoint() {
     glm::vec3 avatarUp = getWorldOrientation() * Vectors::UP;
     glm::vec3 yAxisEyePosition = getWorldPosition() + avatarUp * glm::dot(avatarUp, _skeletonModel->getDefaultEyeModelPosition());
     return yAxisEyePosition;
-}
+}
+
+QVariantMap MyAvatar::getLookAtCameraData() {
+    QVariantMap result;
+    if (QThread::currentThread() != thread()) {
+        BLOCKING_INVOKE_METHOD(this, "getLookAtCameraData",
+            Q_RETURN_ARG(QVariantMap, result));
+        return result;
+    }
+    result.insert("recenterSeconds", _recenterSeconds);
+    result.insert("recenterAngle", _recenterAngle);
+    return result;
+}
+
+Q_INVOKABLE void MyAvatar::setLookAtCameraData(const QVariantMap& data) {
+    if (QThread::currentThread() != thread()) {
+        QMetaObject::invokeMethod(this, "setLookAtCameraData",
+            Q_ARG(const QVariantMap&, data));
+        return;
+    }
+    if (data.contains("recenterSeconds")) {
+        _recenterSeconds = data["recenterSeconds"].toFloat();
+    }
+    if (data.contains("recenterAngle")) {
+        _recenterAngle = data["recenterAngle"].toFloat();
+    }
+}

interface/src/avatar/MyAvatar.h

@@ -1857,6 +1857,9 @@ public:
      */
     Q_INVOKABLE QVariantMap getFlowData();
 
+    Q_INVOKABLE QVariantMap getLookAtCameraData();
+    Q_INVOKABLE void setLookAtCameraData(const QVariantMap& data);
+
     /**jsdoc
      * Gets the indexes of currently colliding flow joints.
      * @function MyAvatar.getCollidingFlowJoints
@@ -2654,6 +2657,10 @@ private:
     bool _shouldTurnToFaceCamera { false };
     bool _scriptControlsHeadLookAt { false };
     float _scriptHeadControlTimer { 0.0f };
+    float _firstPersonSteadyHeadTimer { 0.0f };
+
+    float _recenterSeconds { 5.0f };
+    float _recenterAngle { 45.0f };
 
     Setting::Handle<float> _realWorldFieldOfView;
     Setting::Handle<bool> _useAdvancedMovementControls;