////  Extents.cpp//  libraries/shared/src////  Created by Andrzej Kapolka on 9/18/13.//  Moved to shared by Brad Hefta-Gaub on 9/11/14//  Copyright 2013-2104 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 "Extents.h" #include <glm/gtc/quaternion.hpp>#include <glm/gtx/quaternion.hpp>#include <glm/gtx/transform.hpp> #include "AABox.h"#include "Transform.h" void Extents::reset() {    minimum = Vectors::MAX;    maximum = Vectors::MIN;} bool Extents::containsPoint(const glm::vec3& point) const {    return (point.x >= minimum.x && point.x <= maximum.x        && point.y >= minimum.y && point.y <= maximum.y        && point.z >= minimum.z && point.z <= maximum.z);} void Extents::addExtents(const Extents& extents) {     minimum = glm::min(minimum, extents.minimum);     maximum = glm::max(maximum, extents.maximum);} void Extents::addPoint(const glm::vec3& point) {    minimum = glm::min(minimum, point);    maximum = glm::max(maximum, point);} void Extents::add(const AABox& box) {     minimum = glm::min(minimum, box.getMinimumPoint());     maximum = glm::max(maximum, box.getMaximumPoint());} void Extents::rotate(const glm::quat& rotation) {    glm::vec3 bottomLeftNear(minimum.x, minimum.y, minimum.z);    glm::vec3 bottomRightNear(maximum.x, minimum.y, minimum.z);    glm::vec3 bottomLeftFar(minimum.x, minimum.y, maximum.z);    glm::vec3 bottomRightFar(maximum.x, minimum.y, maximum.z);    glm::vec3 topLeftNear(minimum.x, maximum.y, minimum.z);    glm::vec3 topRightNear(maximum.x, maximum.y, minimum.z);    glm::vec3 topLeftFar(minimum.x, maximum.y, maximum.z);    glm::vec3 topRightFar(maximum.x, maximum.y, maximum.z);     glm::vec3 bottomLeftNearRotated =  rotation * bottomLeftNear;    glm::vec3 bottomRightNearRotated = rotation * bottomRightNear;    glm::vec3 bottomLeftFarRotated = rotation * bottomLeftFar;    glm::vec3 bottomRightFarRotated = rotation * bottomRightFar;    glm::vec3 topLeftNearRotated = rotation * topLeftNear;    glm::vec3 topRightNearRotated = rotation * topRightNear;    glm::vec3 topLeftFarRotated = rotation * topLeftFar;    glm::vec3 topRightFarRotated = rotation * topRightFar;        minimum = glm::min(bottomLeftNearRotated,                        glm::min(bottomRightNearRotated,                        glm::min(bottomLeftFarRotated,                        glm::min(bottomRightFarRotated,                        glm::min(topLeftNearRotated,                        glm::min(topRightNearRotated,                        glm::min(topLeftFarRotated,topRightFarRotated)))))));     maximum = glm::max(bottomLeftNearRotated,                        glm::max(bottomRightNearRotated,                        glm::max(bottomLeftFarRotated,                        glm::max(bottomRightFarRotated,                        glm::max(topLeftNearRotated,                        glm::max(topRightNearRotated,                        glm::max(topLeftFarRotated,topRightFarRotated)))))));}  void Extents::transform(const Transform& transform) {    scale(transform.getScale());    rotate(transform.getRotation());    shiftBy(transform.getTranslation());}