/* Minetest Copyright (C) 2010-2018 nerzhul, Loic BLOT This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include #include "profiler.h" #include "activeobjectmgr.h" namespace client { void ActiveObjectMgr::clear() { // delete active objects for (auto &active_object : m_active_objects) { delete active_object.second; // Object must be marked as gone when children try to detach active_object.second = nullptr; } m_active_objects.clear(); } void ActiveObjectMgr::step( float dtime, const std::function &f) { g_profiler->avg("ActiveObjectMgr: CAO count [#]", m_active_objects.size()); for (auto &ao_it : m_active_objects) { f(ao_it.second); } } // clang-format off bool ActiveObjectMgr::registerObject(ClientActiveObject *obj) { assert(obj); // Pre-condition if (obj->getId() == 0) { u16 new_id = getFreeId(); if (new_id == 0) { infostream << "Client::ActiveObjectMgr::registerObject(): " << "no free id available" << std::endl; delete obj; return false; } obj->setId(new_id); } if (!isFreeId(obj->getId())) { infostream << "Client::ActiveObjectMgr::registerObject(): " << "id is not free (" << obj->getId() << ")" << std::endl; delete obj; return false; } infostream << "Client::ActiveObjectMgr::registerObject(): " << "added (id=" << obj->getId() << ")" << std::endl; m_active_objects[obj->getId()] = obj; return true; } void ActiveObjectMgr::removeObject(u16 id) { verbosestream << "Client::ActiveObjectMgr::removeObject(): " << "id=" << id << std::endl; ClientActiveObject *obj = getActiveObject(id); if (!obj) { infostream << "Client::ActiveObjectMgr::removeObject(): " << "id=" << id << " not found" << std::endl; return; } m_active_objects.erase(id); obj->removeFromScene(true); delete obj; } // clang-format on void ActiveObjectMgr::getActiveObjects(const v3f &origin, f32 max_d, std::vector &dest) { f32 max_d2 = max_d * max_d; for (auto &ao_it : m_active_objects) { ClientActiveObject *obj = ao_it.second; f32 d2 = (obj->getPosition() - origin).getLengthSQ(); if (d2 > max_d2) continue; dest.emplace_back(obj, d2); } } void ActiveObjectMgr::getActiveSelectableObjects(const core::line3d &shootline, std::vector &dest) { // Imagine a not-axis-aligned cuboid oriented into the direction of the shootline, // with the width of the object's selection box radius * 2 and with length of the // shootline (+selection box radius forwards and backwards). We check whether // the selection box center is inside this cuboid. f32 max_d = shootline.getLength(); v3f dir = shootline.getVector().normalize(); v3f dir_ortho1 = dir.crossProduct(dir + v3f(1,0,0)).normalize(); v3f dir_ortho2 = dir.crossProduct(dir_ortho1); for (auto &ao_it : m_active_objects) { ClientActiveObject *obj = ao_it.second; aabb3f selection_box; if (!obj->getSelectionBox(&selection_box)) continue; // possible optimization: get rid of the sqrt here f32 selection_box_radius = selection_box.getRadius(); v3f pos_diff = obj->getPosition() + selection_box.getCenter() - shootline.start; f32 d = dir.dotProduct(pos_diff); // backward- and far-plane if (d + selection_box_radius < 0.0f || d - selection_box_radius > max_d) continue; // side-planes if (std::fabs(dir_ortho1.dotProduct(pos_diff)) > selection_box_radius || std::fabs(dir_ortho2.dotProduct(pos_diff)) > selection_box_radius) continue; dest.emplace_back(obj, d); } } } // namespace client