Optimize entity-entity collision (#6587)
authorVitaliy <silverunicorn2011@yandex.ru>
Tue, 3 Apr 2018 06:23:46 +0000 (09:23 +0300)
committerLoïc Blot <nerzhul@users.noreply.github.com>
Tue, 3 Apr 2018 06:23:46 +0000 (08:23 +0200)
* Add IrrLicht type aliases
* Add hash for IrrLicht vector
* Add object map

13 files changed:
build/android/jni/Android.mk
src/content_sao.cpp
src/irr_aabb3d.h
src/irr_v3d.h
src/server/CMakeLists.txt
src/server/serveractiveobjectmap.cpp [new file with mode: 0644]
src/server/serveractiveobjectmap.h [new file with mode: 0644]
src/serverenvironment.cpp
src/serverenvironment.h
src/unittest/CMakeLists.txt
src/unittest/test.h
src/unittest/test_serveractiveobjectmap.cpp [new file with mode: 0644]
util/travis/clang-format-whitelist.txt

index 1fa8fb7b0a4321e0ce563b4fbe83b8b33f64e477..d5e87bc1f740af6db2003fc2da2e9e00a5e95f3d 100644 (file)
@@ -221,6 +221,7 @@ LOCAL_SRC_FILES := \
                jni/src/rollback_interface.cpp            \
                jni/src/serialization.cpp                 \
                jni/src/server/mods.cpp                   \
+               jni/src/server/serveractiveobjectmap.cpp  \
                jni/src/server.cpp                        \
                jni/src/serverenvironment.cpp             \
                jni/src/serverlist.cpp                    \
index 1dc05cd2285fe6c8bb6fd73682a1e31ccc9ce1cc..0e0c19fceb5292cb4393d28bbcd2b8e5dca2b40e 100644 (file)
@@ -224,6 +224,7 @@ ObjectProperties* UnitSAO::accessObjectProperties()
 
 void UnitSAO::notifyObjectPropertiesModified()
 {
+       m_env->updateActiveObject(this);
        m_properties_sent = false;
 }
 
@@ -607,6 +608,7 @@ void LuaEntitySAO::setPos(const v3f &pos)
        if(isAttached())
                return;
        m_base_position = pos;
+       m_env->updateActiveObject(this);
        sendPosition(false, true);
 }
 
@@ -615,6 +617,7 @@ void LuaEntitySAO::moveTo(v3f pos, bool continuous)
        if(isAttached())
                return;
        m_base_position = pos;
+       m_env->updateActiveObject(this);
        if(!continuous)
                sendPosition(true, true);
 }
@@ -1102,6 +1105,7 @@ void PlayerSAO::setBasePosition(const v3f &position)
 
        // This needs to be ran for attachments too
        ServerActiveObject::setBasePosition(position);
+       m_env->updateActiveObject(this);
        m_position_not_sent = true;
 }
 
index 73bb2db7a3f6aff95d7c8a1b2bc5b9e21d4f565e..1e2784036e0ca5542e8d252ad0c49af0ec345367 100644 (file)
@@ -24,3 +24,5 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <aabbox3d.h>
 
 typedef core::aabbox3d<f32> aabb3f;
+typedef core::aabbox3d<s16> aabb3s16;
+typedef core::aabbox3d<s32> aabb3s32;
index 3e95c7913ca084678b09eabb9f7d40620d578617..49c2e60cebf61ea228553a5ef22f5992ef1d0225 100644 (file)
@@ -18,13 +18,29 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #pragma once
-
 #include "irrlichttypes.h"
-
 #include <vector3d.h>
+#include <functional>
 
 typedef core::vector3df v3f;
 typedef core::vector3d<double> v3d;
 typedef core::vector3d<s16> v3s16;
 typedef core::vector3d<u16> v3u16;
 typedef core::vector3d<s32> v3s32;
+
+namespace std
+{
+template <> struct hash<v3s16>
+{
+       typedef v3s16 argument_type;
+       typedef std::size_t result_type;
+       result_type operator()(const argument_type &s) const noexcept
+       {
+               // clang-format off
+               return static_cast<size_t>((static_cast<u64>(s.X) << 20) ^
+                                          (static_cast<u64>(s.Y) << 10) ^
+                                          (static_cast<u64>(s.Z)));
+               // clang-format on
+       }
+};
+}
index b892e83b346b7767299465bb35e62b482109b63f..98b4730b19b69fef910fc2973f5c321792a6ba66 100644 (file)
@@ -1,3 +1,4 @@
 set(server_SRCS
        ${CMAKE_CURRENT_SOURCE_DIR}/mods.cpp
+       ${CMAKE_CURRENT_SOURCE_DIR}/serveractiveobjectmap.cpp
        PARENT_SCOPE)
diff --git a/src/server/serveractiveobjectmap.cpp b/src/server/serveractiveobjectmap.cpp
new file mode 100644 (file)
index 0000000..e2def77
--- /dev/null
@@ -0,0 +1,196 @@
+/*
+Minetest
+Copyright (C) 2018 numZero, Lobachevsky Vitaly <numzer0@yandex.com>
+
+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 "serveractiveobjectmap.h"
+#include "constants.h"
+#include "log.h"
+#include "serverobject.h"
+
+static constexpr float granularity = 16.0 * BS;
+
+static aabb3s16 calcBox(const aabb3f &cb)
+{
+       return aabb3s16(
+                       floor(cb.MinEdge.X / granularity),
+                       floor(cb.MinEdge.Y / granularity),
+                       floor(cb.MinEdge.Z / granularity),
+                       ceil(cb.MaxEdge.X / granularity),
+                       ceil(cb.MaxEdge.Y / granularity),
+                       ceil(cb.MaxEdge.Z / granularity));
+}
+
+void ServerActiveObjectMap::addObject(ServerActiveObject *object)
+{
+       aabb3f cb;
+       Wrapper w;
+       u16 id = object->getId();
+       if (!isFreeId(id))
+               throw std::logic_error("ServerActiveObjectMap::addObject: "
+                       "object ID in use: " + std::to_string(id));
+       w.object = object;
+       w.has_box = w.object->getCollisionBox(&cb);
+       if (w.has_box) {
+               w.box = calcBox(cb);
+               addObjectRefs(id, w.box);
+       }
+       objects.emplace(id, w);
+}
+
+ServerActiveObject *ServerActiveObjectMap::removeObject(u16 id)
+{
+       auto pw = objects.find(id);
+       if (pw == objects.end())
+               return nullptr; // silently ignore non-existent object
+       Wrapper w = pw->second;
+       if (w.has_box)
+               removeObjectRefs(id, w.box);
+       objects.erase(pw);
+       return w.object;
+}
+
+void ServerActiveObjectMap::removeObject(ServerActiveObject *object)
+{
+       removeObject(object->getId());
+}
+
+void ServerActiveObjectMap::updateObject(u16 id)
+{
+       auto pw = objects.find(id);
+       if (pw == objects.end()) {
+               warningstream << "Trying to update non-existent object: " << id
+                               << std::endl;
+               return;
+       }
+       Wrapper &w = pw->second;
+       aabb3f cb;
+       aabb3s16 box;
+       bool has_box = w.object->getCollisionBox(&cb);
+       if (has_box)
+               box = calcBox(cb);
+       if (w.has_box && has_box && w.box == box)
+               return;
+       if (w.has_box)
+               removeObjectRefs(id, w.box);
+       w.box = box;
+       w.has_box = has_box;
+       if (w.has_box)
+               addObjectRefs(id, w.box);
+}
+
+void ServerActiveObjectMap::updateObject(ServerActiveObject *object)
+{
+       updateObject(object->getId());
+}
+
+ServerActiveObject *ServerActiveObjectMap::getObject(u16 id) const
+{
+       auto pw = objects.find(id);
+       if (pw == objects.end())
+               return nullptr;
+       return pw->second.object;
+}
+
+std::vector<u16> ServerActiveObjectMap::getObjectsInsideRadius(v3f pos, float radius)
+{
+       std::vector<u16> result;
+       auto nearby = getObjectsNearBox(calcBox({pos - radius, pos + radius}));
+       for (auto &id : nearby) {
+               ServerActiveObject *obj = getObject(id);
+               v3f objectpos = obj->getBasePosition();
+               if (objectpos.getDistanceFrom(pos) > radius)
+                       continue;
+               result.push_back(id);
+       }
+       return result;
+}
+
+std::vector<u16> ServerActiveObjectMap::getObjectsTouchingBox(const aabb3f &box)
+{
+       std::vector<u16> result;
+       auto nearby = getObjectsNearBox(calcBox(box));
+       for (auto &id : nearby) {
+               ServerActiveObject *obj = getObject(id);
+               aabb3f cb;
+               if (!obj->getCollisionBox(&cb))
+                       continue;
+               if (!box.intersectsWithBox(cb))
+                       continue;
+               result.push_back(id);
+       }
+       return result;
+}
+
+std::unordered_set<u16> ServerActiveObjectMap::getObjectsNearBox(const aabb3s16 &box)
+{
+       std::unordered_set<u16> result;
+       v3s16 p;
+       for (p.Z = box.MinEdge.Z; p.Z <= box.MaxEdge.Z; p.Z++)
+       for (p.Y = box.MinEdge.Y; p.Y <= box.MaxEdge.Y; p.Y++)
+       for (p.X = box.MinEdge.X; p.X <= box.MaxEdge.X; p.X++) {
+               auto bounds = refmap.equal_range(p);
+               for (auto iter = bounds.first; iter != bounds.second; ++iter)
+                       result.insert(iter->second);
+       }
+       return result;
+}
+
+void ServerActiveObjectMap::addObjectRefs(u16 id, const aabb3s16 &box)
+{
+       v3s16 p;
+       for (p.Z = box.MinEdge.Z; p.Z <= box.MaxEdge.Z; p.Z++)
+       for (p.Y = box.MinEdge.Y; p.Y <= box.MaxEdge.Y; p.Y++)
+       for (p.X = box.MinEdge.X; p.X <= box.MaxEdge.X; p.X++)
+               refmap.emplace(p, id);
+}
+
+void ServerActiveObjectMap::removeObjectRefs(u16 id, const aabb3s16 &box)
+{
+       v3s16 p;
+       for (p.Z = box.MinEdge.Z; p.Z <= box.MaxEdge.Z; p.Z++)
+       for (p.Y = box.MinEdge.Y; p.Y <= box.MaxEdge.Y; p.Y++)
+       for (p.X = box.MinEdge.X; p.X <= box.MaxEdge.X; p.X++) {
+               auto bounds = refmap.equal_range(p);
+               for (auto iter = bounds.first; iter != bounds.second;)
+                       if (iter->second == id)
+                               refmap.erase(iter++);
+                       else
+                               ++iter;
+       }
+}
+
+bool ServerActiveObjectMap::isFreeId(u16 id)
+{
+       if (id == 0)
+               return false;
+       return objects.find(id) == objects.end();
+}
+
+u16 ServerActiveObjectMap::getFreeId()
+{
+       // try to reuse id's as late as possible
+       static u16 last_used_id = 0;
+       u16 startid = last_used_id;
+       for (;;) {
+               last_used_id++;
+               if (isFreeId(last_used_id))
+                       return last_used_id;
+               if (last_used_id == startid) // wrapped around
+                       return 0;
+       }
+}
diff --git a/src/server/serveractiveobjectmap.h b/src/server/serveractiveobjectmap.h
new file mode 100644 (file)
index 0000000..53ac95e
--- /dev/null
@@ -0,0 +1,143 @@
+/*
+Minetest
+Copyright (C) 2018 numZero, Lobachevsky Vitaly <numzer0@yandex.com>
+
+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.
+*/
+
+#pragma once
+#include <unordered_set>
+#include <unordered_map>
+#include <vector>
+#include "irr_v3d.h"
+#include "irr_aabb3d.h"
+
+class ServerActiveObject;
+
+/*!
+ * The class to speed up collision tests.
+ *
+ * @note It stores any objects but only those that has valid collision box
+ * (`physical` Lua entities) are actually processed.
+ * @note It uses world coordinate units, i.e. node size is always BS.
+ */
+struct ServerActiveObjectMap
+{
+       struct Wrapper
+       {
+               ServerActiveObject *object;
+               aabb3s16 box;
+               bool has_box;
+       };
+
+       /*!
+        * Adds object to the map. It must have valid ID.
+        *
+        * If an object with the same ID already exists in the map,
+        * std::logic_error is thrown.
+        */
+       void addObject(ServerActiveObject *object);
+
+       /*!
+        * Removes object from the map. The pointer must be valid.
+        * See `removeObject(u16)` for details.
+        */
+       void removeObject(ServerActiveObject *object);
+
+       /*!
+        * Removes object from the map.
+        *
+        * If the object is not found, the call is ignored.
+        * The function never throws, unless the underlying container throws.
+        */
+       ServerActiveObject *removeObject(u16 id);
+
+       /*!
+        * Updates object metadata stored in the map.
+        * See `updateObject(u16)` for details.
+        */
+       void updateObject(ServerActiveObject *object);
+
+       /*!
+        * Updates object metadata stored in the map.
+        *
+        * The metadata includes (approximate) absolute collision box and
+        * its existence (`physical` property for Lua entities).
+        * This function must be called after each change of these properties,
+        * including each object movement.
+        */
+       void updateObject(u16 id);
+
+       /*!
+        * Returns the object with given ID, if any.
+        * Returns NULL otherwise.
+        */
+       ServerActiveObject *getObject(u16 id) const;
+
+       /*!
+        * Checks if the given ID is free and valid (i.e. non-zero).
+        */
+       bool isFreeId(u16 id);
+
+       /*!
+        * Returns a free ID, if any. Returns 0 in the case of failure.
+        *
+        * @note This function doesn't reserve the ID; it remains free until
+        * an object with that ID is added.
+        * @note This function tries to reclaim freed IDs as late as possible.
+        * However, there is no guarantee.
+        */
+       u16 getFreeId();
+
+       /*!
+        * Returns a list of objects whose base position is at distance less
+        * than @p radius from @p pos.
+        *
+        * @note Due to inexact nature of floating-point computations, it is
+        * undefined whether an object lying exactly at the boundary is included
+        * in the list or not.
+        * @note Objects with base position outside of the collision box may not
+        * be returned.
+        * @note Objects without valid collision box are not returned.
+        */
+       std::vector<u16> getObjectsInsideRadius(v3f pos, float radius);
+
+       /*!
+        * Returns a list of objects whose collision box intersects with @p box
+        *
+        * @note Due to inexact nature of floating-point computations, it is
+        * undefined whether an object lying exactly at the boundary is included
+        * in the list or not.
+        */
+       std::vector<u16> getObjectsTouchingBox(const aabb3f &box);
+
+       /*!
+        * Returns count of objects in the map.
+        */
+       std::size_t size() const { return objects.size(); }
+
+       /*!
+        * Returns reference to the underlying container.
+        */
+       const std::unordered_map<u16, Wrapper> &getObjects() const { return objects; }
+
+private:
+       void addObjectRefs(u16 id, const aabb3s16 &box);
+       void removeObjectRefs(u16 id, const aabb3s16 &box);
+       std::unordered_set<u16> getObjectsNearBox(const aabb3s16 &box);
+
+       std::unordered_map<u16, Wrapper> objects;
+       std::unordered_multimap<v3s16, u16> refmap;
+};
index 74b44c730f7d34826bc58141727f6cb9806cc739..06cfa5839c34eab6b0d722b53aad1be8f799a15b 100644 (file)
@@ -996,14 +996,7 @@ bool ServerEnvironment::swapNode(v3s16 p, const MapNode &n)
 void ServerEnvironment::getObjectsInsideRadius(std::vector<u16> &objects, v3f pos,
        float radius)
 {
-       for (auto &activeObject : m_active_objects) {
-               ServerActiveObject* obj = activeObject.second;
-               u16 id = activeObject.first;
-               v3f objectpos = obj->getBasePosition();
-               if (objectpos.getDistanceFrom(pos) > radius)
-                       continue;
-               objects.push_back(id);
-       }
+       objects = m_active_objects.getObjectsInsideRadius(pos, radius);
 }
 
 void ServerEnvironment::clearObjects(ClearObjectsMode mode)
@@ -1011,9 +1004,9 @@ void ServerEnvironment::clearObjects(ClearObjectsMode mode)
        infostream << "ServerEnvironment::clearObjects(): "
                << "Removing all active objects" << std::endl;
        std::vector<u16> objects_to_remove;
-       for (auto &it : m_active_objects) {
+       for (auto &it : m_active_objects.getObjects()) {
                u16 id = it.first;
-               ServerActiveObject* obj = it.second;
+               ServerActiveObject* obj = it.second.object;
                if (obj->getType() == ACTIVEOBJECT_TYPE_PLAYER)
                        continue;
 
@@ -1040,7 +1033,7 @@ void ServerEnvironment::clearObjects(ClearObjectsMode mode)
 
        // Remove references from m_active_objects
        for (u16 i : objects_to_remove) {
-               m_active_objects.erase(i);
+               m_active_objects.removeObject(i);
        }
 
        // Get list of loaded blocks
@@ -1338,8 +1331,8 @@ void ServerEnvironment::step(float dtime)
                        send_recommended = true;
                }
 
-               for (auto &ao_it : m_active_objects) {
-                       ServerActiveObject* obj = ao_it.second;
+               for (auto &ao_it : m_active_objects.getObjects()) {
+                       ServerActiveObject* obj = ao_it.second.object;
                        if (obj->isGone())
                                continue;
 
@@ -1425,40 +1418,7 @@ void ServerEnvironment::deleteParticleSpawner(u32 id, bool remove_from_object)
 
 ServerActiveObject* ServerEnvironment::getActiveObject(u16 id)
 {
-       ServerActiveObjectMap::const_iterator n = m_active_objects.find(id);
-       return (n != m_active_objects.end() ? n->second : NULL);
-}
-
-/**
- * Verify if id is a free active object id
- * @param id
- * @return true if slot is free
- */
-bool ServerEnvironment::isFreeServerActiveObjectId(u16 id) const
-{
-       if (id == 0)
-               return false;
-
-       return m_active_objects.find(id) == m_active_objects.end();
-}
-
-/**
- * Retrieve the first free ActiveObject ID
- * @return free activeobject ID or 0 if none was found
- */
-u16 ServerEnvironment::getFreeServerActiveObjectId()
-{
-       // try to reuse id's as late as possible
-       static u16 last_used_id = 0;
-       u16 startid = last_used_id;
-       for (;;) {
-               last_used_id++;
-               if (isFreeServerActiveObjectId(last_used_id))
-                       return last_used_id;
-
-               if (last_used_id == startid)
-                       return 0;
-       }
+       return m_active_objects.getObject(id);
 }
 
 u16 ServerEnvironment::addActiveObject(ServerActiveObject *object)
@@ -1469,6 +1429,12 @@ u16 ServerEnvironment::addActiveObject(ServerActiveObject *object)
        return id;
 }
 
+void ServerEnvironment::updateActiveObject(ServerActiveObject *object)
+{
+       assert(object);
+       m_active_objects.updateObject(object);
+}
+
 /*
        Finds out what new objects have been added to
        inside a radius around a position
@@ -1490,11 +1456,11 @@ void ServerEnvironment::getAddedActiveObjects(PlayerSAO *playersao, s16 radius,
                - discard objects that are found in current_objects.
                - add remaining objects to added_objects
        */
-       for (auto &ao_it : m_active_objects) {
+       for (auto &ao_it : m_active_objects.getObjects()) {
                u16 id = ao_it.first;
 
                // Get object
-               ServerActiveObject *object = ao_it.second;
+               ServerActiveObject *object = ao_it.second.object;
                if (object == NULL)
                        continue;
 
@@ -1578,16 +1544,14 @@ void ServerEnvironment::setStaticForActiveObjectsInBlock(
 
        for (auto &so_it : block->m_static_objects.m_active) {
                // Get the ServerActiveObject counterpart to this StaticObject
-               ServerActiveObjectMap::const_iterator ao_it = m_active_objects.find(so_it.first);
-               if (ao_it == m_active_objects.end()) {
+               ServerActiveObject *sao = m_active_objects.getObject(so_it.first);
+               if (!sao) {
                        // If this ever happens, there must be some kind of nasty bug.
                        errorstream << "ServerEnvironment::setStaticForObjectsInBlock(): "
                                "Object from MapBlock::m_static_objects::m_active not found "
                                "in m_active_objects";
                        continue;
                }
-
-               ServerActiveObject *sao = ao_it->second;
                sao->m_static_exists = static_exists;
                sao->m_static_block  = static_block;
        }
@@ -1644,7 +1608,7 @@ u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
 {
        assert(object); // Pre-condition
        if(object->getId() == 0){
-               u16 new_id = getFreeServerActiveObjectId();
+               u16 new_id = m_active_objects.getFreeId();
                if(new_id == 0)
                {
                        errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
@@ -1660,7 +1624,7 @@ u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
                        <<"supplied with id "<<object->getId()<<std::endl;
        }
 
-       if(!isFreeServerActiveObjectId(object->getId())) {
+       if (!m_active_objects.isFreeId(object->getId())) {
                errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
                        <<"id is not free ("<<object->getId()<<")"<<std::endl;
                if(object->environmentDeletes())
@@ -1681,7 +1645,7 @@ u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
        /*infostream<<"ServerEnvironment::addActiveObjectRaw(): "
                        <<"added (id="<<object->getId()<<")"<<std::endl;*/
 
-       m_active_objects[object->getId()] = object;
+       m_active_objects.addObject(object);
 
        verbosestream<<"ServerEnvironment::addActiveObjectRaw(): "
                <<"Added id="<<object->getId()<<"; there are now "
@@ -1727,9 +1691,9 @@ u16 ServerEnvironment::addActiveObjectRaw(ServerActiveObject *object,
 void ServerEnvironment::removeRemovedObjects()
 {
        std::vector<u16> objects_to_remove;
-       for (auto &ao_it : m_active_objects) {
+       for (auto &ao_it : m_active_objects.getObjects()) {
                u16 id = ao_it.first;
-               ServerActiveObject* obj = ao_it.second;
+               ServerActiveObject* obj = ao_it.second.object;
 
                // This shouldn't happen but check it
                if (!obj) {
@@ -1794,7 +1758,7 @@ void ServerEnvironment::removeRemovedObjects()
        }
        // Remove references from m_active_objects
        for (u16 i : objects_to_remove) {
-               m_active_objects.erase(i);
+               m_active_objects.removeObject(i);
        }
 }
 
@@ -1916,11 +1880,11 @@ void ServerEnvironment::activateObjects(MapBlock *block, u32 dtime_s)
 void ServerEnvironment::deactivateFarObjects(bool _force_delete)
 {
        std::vector<u16> objects_to_remove;
-       for (auto &ao_it : m_active_objects) {
+       for (auto &ao_it : m_active_objects.getObjects()) {
                // force_delete might be overriden per object
                bool force_delete = _force_delete;
 
-               ServerActiveObject* obj = ao_it.second;
+               ServerActiveObject* obj = ao_it.second.object;
                assert(obj);
 
                // Do not deactivate if static data creation not allowed
@@ -2051,7 +2015,7 @@ void ServerEnvironment::deactivateFarObjects(bool _force_delete)
 
        // Remove references from m_active_objects
        for (u16 i : objects_to_remove) {
-               m_active_objects.erase(i);
+               m_active_objects.removeObject(i);
        }
 }
 
index 225f788d9d5ea4e13ad78d1a4212e0546f6a189a..05a68cb30216757dc3ddbd0e683393fec1ee4953 100644 (file)
@@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "activeobject.h"
 #include "environment.h"
 #include "mapnode.h"
+#include "server/serveractiveobjectmap.h"
 #include "settings.h"
 #include "util/numeric.h"
 #include <set>
@@ -193,8 +194,6 @@ enum ClearObjectsMode {
        This is not thread-safe. Server uses an environment mutex.
 */
 
-typedef std::unordered_map<u16, ServerActiveObject *> ServerActiveObjectMap;
-
 class ServerEnvironment : public Environment
 {
 public:
@@ -254,18 +253,7 @@ public:
        */
        u16 addActiveObject(ServerActiveObject *object);
 
-       /**
-        * Verify if id is a free active object id
-        * @param id
-        * @return true if slot is free
-        */
-       bool isFreeServerActiveObjectId(u16 id) const;
-
-       /**
-        * Retrieve the first free ActiveObject ID
-        * @return free activeobject ID or 0 if none was found
-        */
-       u16 getFreeServerActiveObjectId();
+       void updateActiveObject(ServerActiveObject *object);
 
        /*
                Add an active object as a static object to the corresponding
index 733eabae34c645cc1efc693f116e4722fbe603d8..768959e5e612daeb5fef1cffab46c7a91e1eed9b 100644 (file)
@@ -22,6 +22,7 @@ set (UNITTEST_SRCS
        ${CMAKE_CURRENT_SOURCE_DIR}/test_serialization.cpp
        ${CMAKE_CURRENT_SOURCE_DIR}/test_settings.cpp
        ${CMAKE_CURRENT_SOURCE_DIR}/test_socket.cpp
+       ${CMAKE_CURRENT_SOURCE_DIR}/test_serveractiveobjectmap.cpp
        ${CMAKE_CURRENT_SOURCE_DIR}/test_servermodmanager.cpp
        ${CMAKE_CURRENT_SOURCE_DIR}/test_threading.cpp
        ${CMAKE_CURRENT_SOURCE_DIR}/test_utilities.cpp
index 1102f6d33b2b77c41d5984f6f27dc66a954cd69e..a6cd03ed247b458cd4d41df0a75f9ef9a1104391 100644 (file)
@@ -99,6 +99,10 @@ class TestFailedException : public std::exception {
        UASSERT(exception_thrown);            \
 }
 
+#define CONCAT_IMPL(x,y) x##y
+#define CONCAT(x,y) CONCAT_IMPL(x, y)
+#define NEWNAME(prefix) CONCAT(prefix, __COUNTER__)
+
 class IGameDef;
 
 class TestBase {
diff --git a/src/unittest/test_serveractiveobjectmap.cpp b/src/unittest/test_serveractiveobjectmap.cpp
new file mode 100644 (file)
index 0000000..42c8792
--- /dev/null
@@ -0,0 +1,214 @@
+/*
+Minetest
+Copyright (C) 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 "test.h"
+
+#include "server/serveractiveobjectmap.h"
+#include "content_sao.h"
+
+class TestServerActiveObjectMap : public TestBase
+{
+public:
+       TestServerActiveObjectMap() { TestManager::registerTestModule(this); }
+       const char *getName() { return "TestServerActiveObjectMap"; }
+
+       void runTests(IGameDef *gamedef);
+
+       void testAddObject();
+       void testRemoveObject();
+       void testUpdateObject();
+       void testGetObject();
+       void testIsFreeID();
+       void testGetFreeID();
+       void testGetObjectsInsideRadius();
+       void testGetObjectsTouchingBox();
+};
+
+static TestServerActiveObjectMap g_test_instance;
+
+void TestServerActiveObjectMap::runTests(IGameDef *gamedef)
+{
+       TEST(testAddObject);
+       TEST(testRemoveObject);
+       TEST(testUpdateObject);
+       TEST(testGetObject);
+       TEST(testIsFreeID);
+       TEST(testGetFreeID);
+       TEST(testGetObjectsInsideRadius);
+       TEST(testGetObjectsTouchingBox);
+}
+
+void TestServerActiveObjectMap::testAddObject()
+{
+       ServerActiveObjectMap saom;
+       UASSERT(saom.getObjects().empty());
+
+       LuaEntitySAO ob1(nullptr, v3f(0, 0, 0), "", "");
+       ob1.setId(saom.getFreeId());
+       saom.addObject(&ob1);
+
+       UASSERT(saom.getObjects().size() == 1);
+       bool found = false;
+       for (const auto &pair : saom.getObjects()) {
+               UASSERT(pair.second.object == &ob1);
+               found = true;
+       }
+       UASSERT(found);
+}
+
+void TestServerActiveObjectMap::testRemoveObject()
+{
+       ServerActiveObjectMap saom;
+       UASSERT(saom.getObjects().empty());
+
+       LuaEntitySAO ob1(nullptr, v3f(0, 0, 0), "", "");
+       ob1.setId(saom.getFreeId());
+       saom.addObject(&ob1);
+
+       UASSERT(saom.getObjects().size() == 1);
+       bool found = false;
+       for (const auto &pair : saom.getObjects()) {
+               UASSERT(pair.second.object == &ob1);
+               found = true;
+       }
+       UASSERT(found);
+
+       saom.removeObject(&ob1);
+}
+
+void TestServerActiveObjectMap::testUpdateObject()
+{
+       ServerActiveObjectMap saom;
+       LuaEntitySAO ob1(nullptr, v3f(1, 0, 0), "", "");
+       ob1.accessObjectProperties()->physical = true;
+       ob1.setId(saom.getFreeId());
+       saom.addObject(&ob1);
+       UASSERT(saom.getObjectsInsideRadius(v3f(0, 0, 0), 2).size() == 1);
+       UASSERT(saom.getObjectsInsideRadius(v3f(6, 0, 0), 2).size() == 0);
+       ob1.setBasePosition(v3f(5, 0, 0));
+       saom.updateObject(&ob1);
+       UASSERT(saom.getObjectsInsideRadius(v3f(0, 0, 0), 2).size() == 0);
+       UASSERT(saom.getObjectsInsideRadius(v3f(6, 0, 0), 2).size() == 1);
+}
+
+void TestServerActiveObjectMap::testGetObject()
+{
+       ServerActiveObjectMap saom;
+       LuaEntitySAO ob1(nullptr, v3f(0, 0, 0), "", "");
+       u16 id = saom.getFreeId();
+       ob1.setId(id);
+       saom.addObject(&ob1);
+       UASSERT(saom.getObject(0) == nullptr);
+       UASSERT(saom.getObject(id) == &ob1);
+       UASSERT(saom.getObject(id + 1) == nullptr);
+}
+
+void TestServerActiveObjectMap::testIsFreeID()
+{
+       ServerActiveObjectMap saom;
+       UASSERT(!saom.isFreeId(0));
+       UASSERT(saom.isFreeId(1));
+       UASSERT(saom.isFreeId(2));
+}
+
+void TestServerActiveObjectMap::testGetFreeID()
+{
+       ServerActiveObjectMap saom;
+       u16 first_id = saom.getFreeId();
+       UASSERT(first_id > 0);
+       UASSERT(saom.getFreeId() > first_id);
+}
+
+void TestServerActiveObjectMap::testGetObjectsInsideRadius()
+{
+       ServerActiveObjectMap saom;
+#define ADD_OBJECT_IMPL(name, pos)                                                       \
+       LuaEntitySAO name(nullptr, pos, "", "");                                         \
+       name.accessObjectProperties()->physical = true;                                  \
+       name.setId(saom.getFreeId());                                                    \
+       saom.addObject(&name)
+#define ADD_OBJECT(pos) ADD_OBJECT_IMPL(NEWNAME(ob), pos)
+#define OBJECT_COUNT (saom.getObjectsInsideRadius(v3f(0, 0, 0), 5).size())
+
+       UASSERT(OBJECT_COUNT == 0);
+
+       ADD_OBJECT(v3f(0, 0, 0));
+       UASSERT(OBJECT_COUNT == 1);
+
+       ADD_OBJECT(v3f(-1, -1, -1));
+       UASSERT(OBJECT_COUNT == 2);
+
+       ADD_OBJECT(v3f(4.9, 0, 0));
+       UASSERT(OBJECT_COUNT == 3);
+
+       ADD_OBJECT(v3f(5.1, 0, 0));
+       UASSERT(OBJECT_COUNT == 3);
+
+       ADD_OBJECT(v3f(3, 3, 3));
+       UASSERT(OBJECT_COUNT == 3);
+}
+
+void TestServerActiveObjectMap::testGetObjectsTouchingBox()
+{
+       ServerActiveObjectMap saom;
+
+       LuaEntitySAO ob1(nullptr, v3f(1 * BS, 0, 0), "", "");
+       ob1.accessObjectProperties()->physical = true;
+       // Collision boxes are in nodes, not in world units:
+       ob1.accessObjectProperties()->collisionbox = {-1, -1, -1, 1, 1, 1};
+       ob1.setId(saom.getFreeId());
+       saom.addObject(&ob1);
+
+       LuaEntitySAO ob2(nullptr, v3f(1.5 * BS, 2.5 * BS, 0), "", "");
+       ob2.accessObjectProperties()->physical = true;
+       ob2.accessObjectProperties()->collisionbox = {-0.5, -0.5, -1, 3.5, 2, 1};
+       ob2.setId(saom.getFreeId());
+       saom.addObject(&ob2);
+
+       std::vector<u16> list;
+
+       list = saom.getObjectsTouchingBox(
+                       {2.1 * BS, -1.0 * BS, -1.0 * BS, 2.5 * BS, 1.0 * BS, 1.0 * BS});
+       UASSERT(list.size() == 0);
+
+       // intersecting ob1
+       list = saom.getObjectsTouchingBox(
+                       {1.9 * BS, -1.0 * BS, -1.0 * BS, 2.5 * BS, 1.0 * BS, 1.0 * BS});
+       UASSERT(list.size() == 1 && list[0] == ob1.getId());
+
+       // intersecting ob2
+       list = saom.getObjectsTouchingBox(
+                       {2.1 * BS, -1.0 * BS, -1.0 * BS, 2.5 * BS, 2.1 * BS, 1.0 * BS});
+       UASSERT(list.size() == 1 && list[0] == ob2.getId());
+
+       // contained in ob1
+       list = saom.getObjectsTouchingBox(
+                       {1.5 * BS, -0.1 * BS, -0.1 * BS, 1.9 * BS, 0.1 * BS, 0.1 * BS});
+       UASSERT(list.size() == 1 && list[0] == ob1.getId());
+
+       // contains ob2
+       list = saom.getObjectsTouchingBox(
+                       {0.9 * BS, 1.5 * BS, -5.0 * BS, 6.0 * BS, 20.0 * BS, 500.0 * BS});
+       UASSERT(list.size() == 1 && list[0] == ob2.getId());
+
+       // intersecting both
+       list = saom.getObjectsTouchingBox(
+                       {1.9 * BS, -1.0 * BS, -1.0 * BS, 2.5 * BS, 2.1 * BS, 1.0 * BS});
+       UASSERT(list.size() == 2);
+}
index 8f3b0ee6cf19931233cc2e9caa7eefebae009386..e0da7173fa8ba69a12900e081829a5349c9efc6a 100644 (file)
@@ -311,8 +311,7 @@ src/script/scripting_server.cpp
 src/script/scripting_server.h
 src/serialization.cpp
 src/serialization.h
-src/serveractiveobjectmap.cpp
-src/serveractiveobjectmap.h
+src/server/serveractiveobjectmap.cpp
 src/server.cpp
 src/serverenvironment.cpp
 src/serverenvironment.h