////  DebugDraw.cpp////  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 "DebugDraw.h"#include "SharedUtil.h" DebugDraw& DebugDraw::getInstance() {    static DebugDraw* instance = globalInstance<DebugDraw>("com.highfidelity.DebugDraw");    return *instance;} DebugDraw::DebugDraw() { } DebugDraw::~DebugDraw() { } // world space line, drawn only oncevoid DebugDraw::drawRay(const glm::vec3& start, const glm::vec3& end, const glm::vec4& color) {    _rays.push_back(Ray(start, end, color));} void DebugDraw::addMarker(const std::string& key, const glm::quat& rotation, const glm::vec3& position, const glm::vec4& color) {    _markers[key] = MarkerInfo(rotation, position, color);} void DebugDraw::removeMarker(const std::string& key) {    _markers.erase(key);} void DebugDraw::addMyAvatarMarker(const std::string& key, const glm::quat& rotation, const glm::vec3& position, const glm::vec4& color) {    _myAvatarMarkers[key] = MarkerInfo(rotation, position, color);} void DebugDraw::removeMyAvatarMarker(const std::string& key) {    _myAvatarMarkers.erase(key);}