////  Created by Sam Gondelman on 11/30/18//  Copyright 2018 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 "BillboardMode.h" const char* billboardModeNames[] = {    "none",    "yaw",    "full"}; static const size_t BILLBOARD_MODE_NAMES = (sizeof(billboardModeNames) / sizeof(billboardModeNames[0]));std::function<glm::quat(const glm::vec3&, const glm::quat&, BillboardMode, const glm::vec3&, bool)> BillboardModeHelpers::_getBillboardRotationOperator =    [](const glm::vec3&, const glm::quat& rotation, BillboardMode, const glm::vec3&, bool) { return rotation; };std::function<glm::vec3()> BillboardModeHelpers::_getPrimaryViewFrustumPositionOperator = []() { return glm::vec3(0.0f); }; void BillboardModeHelpers::setBillboardRotationOperator(std::function<glm::quat(const glm::vec3&, const glm::quat&,                                                        BillboardMode, const glm::vec3&, bool)> getBillboardRotationOperator) {    _getBillboardRotationOperator = getBillboardRotationOperator;} glm::quat BillboardModeHelpers::getBillboardRotation(const glm::vec3& position, const glm::quat& rotation, BillboardMode billboardMode,                                                     const glm::vec3& frustumPos, bool rotate90x) {    return _getBillboardRotationOperator(position, rotation, billboardMode, frustumPos, rotate90x);} void BillboardModeHelpers::setPrimaryViewFrustumPositionOperator(std::function<glm::vec3()> getPrimaryViewFrustumPositionOperator) {    _getPrimaryViewFrustumPositionOperator = getPrimaryViewFrustumPositionOperator;} QString BillboardModeHelpers::getNameForBillboardMode(BillboardMode mode) {    if (((int)mode <= 0) || ((int)mode >= (int)BILLBOARD_MODE_NAMES)) {        mode = (BillboardMode)0;    }     return billboardModeNames[(int)mode];}