Add method to check entities joint hierarchy

libraries/entities-renderer/src/RenderableModelEntityItem.cpp

@@ -774,6 +774,14 @@ bool RenderableModelEntityItem::shouldBePhysical() const {
     }
 }
 
+int RenderableModelEntityItem::getJointParent(int index) const {
+    auto model = getModel();
+    if (model) {
+        return model->getRig().getJointParentIndex(index);
+    }
+    return -1;
+}
+
 glm::quat RenderableModelEntityItem::getAbsoluteJointRotationInObjectFrame(int index) const {
     auto model = getModel();
     if (model) {

libraries/entities-renderer/src/RenderableModelEntityItem.h

@@ -94,6 +94,7 @@ public:
     // these are in the frame of this object (model space)
     virtual glm::quat getAbsoluteJointRotationInObjectFrame(int index) const override;
     virtual glm::vec3 getAbsoluteJointTranslationInObjectFrame(int index) const override;
+    virtual int getJointParent(int index) const override;
     virtual bool setAbsoluteJointRotationInObjectFrame(int index, const glm::quat& rotation) override;
     virtual bool setAbsoluteJointTranslationInObjectFrame(int index, const glm::vec3& translation) override;
 

libraries/entities/src/EntityItem.h

@@ -455,6 +455,7 @@ public:
     // these are in the frame of this object
     virtual glm::quat getAbsoluteJointRotationInObjectFrame(int index) const override { return glm::quat(); }
     virtual glm::vec3 getAbsoluteJointTranslationInObjectFrame(int index) const override { return glm::vec3(0.0f); }
+    virtual int getJointParent(int index) const override { return -1; }
 
     virtual bool setLocalJointRotation(int index, const glm::quat& rotation) override { return false; }
     virtual bool setLocalJointTranslation(int index, const glm::vec3& translation) override { return false; }

libraries/entities/src/EntityScriptingInterface.cpp

@@ -1806,6 +1806,15 @@ glm::vec3 EntityScriptingInterface::localCoordsToVoxelCoords(const QUuid& entity
     }
 }
 
+int EntityScriptingInterface::getJointParent(const QUuid& entityID, int index) {
+    if (auto entity = checkForTreeEntityAndTypeMatch(entityID, EntityTypes::Model)) {
+        auto modelEntity = std::dynamic_pointer_cast<ModelEntityItem>(entity);
+        return modelEntity->getJointParent(index);
+    } else {
+        return -1;
+    }
+}
+
 glm::vec3 EntityScriptingInterface::getAbsoluteJointTranslationInObjectFrame(const QUuid& entityID, int jointIndex) {
     if (auto entity = checkForTreeEntityAndTypeMatch(entityID, EntityTypes::Model)) {
         auto modelEntity = std::dynamic_pointer_cast<ModelEntityItem>(entity);

libraries/entities/src/EntityScriptingInterface.h

@@ -980,7 +980,7 @@ public slots:
      */
     // FIXME move to a renderable entity interface
     Q_INVOKABLE glm::vec3 getAbsoluteJointTranslationInObjectFrame(const QUuid& entityID, int jointIndex);
-
+    Q_INVOKABLE int getJointParent(const QUuid& entityID, int index);
     /**jsdoc
      * Get the translation of a joint in a {@link Entities.EntityType|Model} entity relative to the entity's position and 
      * orientation.

libraries/shared/src/SpatiallyNestable.h

@@ -163,6 +163,8 @@ public:
     virtual glm::vec3 getAbsoluteJointScaleInObjectFrame(int index) const { return glm::vec3(1.0f); }
     virtual glm::quat getAbsoluteJointRotationInObjectFrame(int index) const { return glm::quat(); }
     virtual glm::vec3 getAbsoluteJointTranslationInObjectFrame(int index) const { return glm::vec3(); }
+    virtual int getJointParent(int index) const { return -1; }
+
     virtual bool setAbsoluteJointRotationInObjectFrame(int index, const glm::quat& rotation) { return false; }
     virtual bool setAbsoluteJointTranslationInObjectFrame(int index, const glm::vec3& translation) {return false; }