////  HMDScriptingInterface.cpp//  interface/src/scripting////  Created by Thijs Wenker on 1/12/15.//  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "HMDScriptingInterface.h" HMDScriptingInterface& HMDScriptingInterface::getInstance() {    static HMDScriptingInterface sharedInstance;    return sharedInstance;} glm::vec3 HMDScriptingInterface::getHUDLookAtPosition3D() const {    Camera* camera = Application::getInstance()->getCamera();    glm::vec3 position = camera->getPosition();    glm::quat orientation = camera->getOrientation();     glm::vec3 direction = orientation * glm::vec3(0.0f, 0.0f, -1.0f);     ApplicationOverlay& applicationOverlay = Application::getInstance()->getApplicationOverlay();     glm::vec3 result;    applicationOverlay.calculateRayUICollisionPoint(position, direction, result);    return result;} glm::vec2 HMDScriptingInterface::getHUDLookAtPosition2D() const {    MyAvatar* myAvatar = Application::getInstance()->getAvatar();    glm::vec3 sphereCenter = myAvatar->getDefaultEyePosition();     glm::vec3 hudIntersection = getHUDLookAtPosition3D();     glm::vec3 direction = glm::inverse(myAvatar->getOrientation()) * (hudIntersection - sphereCenter);    glm::quat rotation = ::rotationBetween(glm::vec3(0.0f, 0.0f, -1.0f), direction);    glm::vec3 eulers = ::safeEulerAngles(rotation);     return Application::getInstance()->getApplicationOverlay().sphericalToOverlay(glm::vec2(eulers.y, -eulers.x));;}