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- /*
- Minetest
- Copyright (C) 2010-2018 nerzhul, Loic BLOT <loic.blot@unix-experience.fr>
- 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 <cmath>
- #include <log.h>
- #include "profiler.h"
- #include "activeobjectmgr.h"
- namespace client
- {
- ActiveObjectMgr::~ActiveObjectMgr()
- {
- if (!m_active_objects.empty()) {
- warningstream << "client::ActiveObjectMgr::~ActiveObjectMgr(): not cleared."
- << std::endl;
- clear();
- }
- }
- void ActiveObjectMgr::step(
- float dtime, const std::function<void(ClientActiveObject *)> &f)
- {
- size_t count = 0;
- for (auto &ao_it : m_active_objects.iter()) {
- if (!ao_it.second)
- continue;
- count++;
- f(ao_it.second.get());
- }
- g_profiler->avg("ActiveObjectMgr: CAO count [#]", count);
- }
- bool ActiveObjectMgr::registerObject(std::unique_ptr<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;
- return false;
- }
- obj->setId(new_id);
- }
- if (!isFreeId(obj->getId())) {
- infostream << "Client::ActiveObjectMgr::registerObject(): "
- << "id is not free (" << obj->getId() << ")" << std::endl;
- return false;
- }
- infostream << "Client::ActiveObjectMgr::registerObject(): "
- << "added (id=" << obj->getId() << ")" << std::endl;
- m_active_objects.put(obj->getId(), std::move(obj));
- return true;
- }
- void ActiveObjectMgr::removeObject(u16 id)
- {
- verbosestream << "Client::ActiveObjectMgr::removeObject(): "
- << "id=" << id << std::endl;
- std::unique_ptr<ClientActiveObject> obj = m_active_objects.take(id);
- if (!obj) {
- infostream << "Client::ActiveObjectMgr::removeObject(): "
- << "id=" << id << " not found" << std::endl;
- return;
- }
- obj->removeFromScene(true);
- }
- void ActiveObjectMgr::getActiveObjects(const v3f &origin, f32 max_d,
- std::vector<DistanceSortedActiveObject> &dest)
- {
- f32 max_d2 = max_d * max_d;
- for (auto &ao_it : m_active_objects.iter()) {
- ClientActiveObject *obj = ao_it.second.get();
- if (!obj)
- continue;
- f32 d2 = (obj->getPosition() - origin).getLengthSQ();
- if (d2 > max_d2)
- continue;
- dest.emplace_back(obj, d2);
- }
- }
- std::vector<DistanceSortedActiveObject> ActiveObjectMgr::getActiveSelectableObjects(const core::line3d<f32> &shootline)
- {
- std::vector<DistanceSortedActiveObject> dest;
- f32 max_d = shootline.getLength();
- v3f dir = shootline.getVector().normalize();
- for (auto &ao_it : m_active_objects.iter()) {
- ClientActiveObject *obj = ao_it.second.get();
- if (!obj)
- continue;
- aabb3f selection_box;
- if (!obj->getSelectionBox(&selection_box))
- continue;
- v3f obj_center = obj->getPosition() + selection_box.getCenter();
- f32 obj_radius_sq = selection_box.getExtent().getLengthSQ() / 4;
- v3f c = obj_center - shootline.start;
- f32 a = dir.dotProduct(c); // project c onto dir
- f32 b_sq = c.getLengthSQ() - a * a; // distance from shootline to obj_center, squared
- if (b_sq > obj_radius_sq)
- continue;
- // backward- and far-plane
- f32 obj_radius = std::sqrt(obj_radius_sq);
- if (a < -obj_radius || a > max_d + obj_radius)
- continue;
- dest.emplace_back(obj, a);
- }
- return dest;
- }
- } // namespace client
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