diff --git a/Bonus.cpp b/Bonus.cpp
index 91685e4..b620342 100755
--- a/Bonus.cpp
+++ b/Bonus.cpp
@@ -8,6 +8,4 @@ Bonus::Bonus(const std::string &bonusName, const std::string &filename, const st
     _name = bonusName;
     loadObj(filename, materials, scale);
     setCollider(false);
-
-    a_rotate("a_rotation", Point4D{0, 2*M_PI, 0}, 4, Animation::Continue, Animation::linear);
 }
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f422a17..9911f04 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,6 +66,7 @@ add_executable(shooter
         engine/physics/Simplex.h
         engine/physics/Solver.cpp
         engine/physics/Solver.h
+        engine/Object.cpp
         engine/Object.h
         engine/gui/Button.cpp
         engine/gui/Button.h
@@ -85,7 +86,7 @@ add_executable(shooter
         engine/network/UDPSocket.h
         engine/network/config.h
         engine/animation/AFunction.h
-        PlayerController.cpp PlayerController.h engine/Keyboard.cpp engine/Keyboard.h engine/Mouse.cpp engine/Mouse.h)
+        PlayerController.cpp PlayerController.h engine/Keyboard.cpp engine/Keyboard.h engine/Mouse.cpp engine/Mouse.h Shooter.cpp Shooter.h)
 
 if(APPLE OR UNIX)
     include_directories(/usr/local/include)
diff --git a/Client.cpp b/Client.cpp
index 6b495c0..4c89560 100755
--- a/Client.cpp
+++ b/Client.cpp
@@ -3,39 +3,20 @@
 //
 
 #include "Client.h"
+
+#include <utility>
 #include "utils/Log.h"
 #include "Bonus.h"
 
 void Client::updatePacket() {
     sf::Packet packet;
-    packet << MsgType::ClientUpdate << _player->position().x() << _player->position().y() << _player->position().z() << _player->angle().y() << _player->camera()->angleLeftUpLookAt().x();
+    packet << MsgType::ClientUpdate << _player->position().x() << _player->position().y() << _player->position().z() << _player->angle().y() << _player->headAngle();
     _socket.send(packet, _socket.serverId());
 }
 
 void Client::spawnPlayer(sf::Uint16 id) {
-    std::string name = "Player_" + std::to_string(id);
-    _players.insert({ id, std::make_shared<Player>() });
-    (*_world).addBody(_players[id], name);
-    _players[id]->setVisible(true);
-    _players[id]->setAcceleration(Point4D{0, 0, 0});
-
-    // add head and other stuff:
-    _world->loadBody(name + "_head", "../obj/cube.obj", "", Point4D{0.7, 0.7, 0.7});
-    _world->body(name + "_head")->translate(Point4D{0, 2, 0});
-    _world->body(name + "_head")->setCollider(false);
-    _players[id]->attach(_world->body(name + "_head"));
-
-    _world->loadBody(name + "_eye1", "../obj/cube.obj", "", Point4D{0.2, 0.2, 0.05});
-    _world->body(name + "_eye1")->translate(Point4D{0.3, 2.1, 0.7});
-    _world->body(name + "_eye1")->setCollider(false);
-    _world->body(name + "_eye1")->setColor({147, 159, 255});
-    _world->body(name + "_head")->attach(_world->body(name + "_eye1"));
-
-    _world->loadBody(name + "_eye2", "../obj/cube.obj", "", Point4D{0.2, 0.2, 0.05});
-    _world->body(name + "_eye2")->translate(Point4D{-0.3, 2.1, 0.7});
-    _world->body(name + "_eye2")->setCollider(false);
-    _world->body(name + "_eye2")->setColor({147, 159, 255});
-    _world->body(name + "_head")->attach(_world->body(name + "_eye2"));
+    if(_spawnPlayerCallBack != nullptr)
+        _spawnPlayerCallBack(id);
 }
 
 void Client::processInit(sf::Packet& packet) {
@@ -64,8 +45,8 @@ void Client::processUpdate(sf::Packet& packet) {
             _players[targetId]->setHealth(buf[3]);
             _players[targetId]->rotateToAngle(Point4D{0, buf[4], 0});
 
-            _world->body(name + "_head")->rotate(Matrix4x4::RotationY(buf[4]) * Point4D{1, 0, 0},
-                                              buf[5] - _players[targetId]->headAngle());
+            _players[targetId]->attached("head")->rotate(Matrix4x4::RotationY(buf[4]) * Point4D{1, 0, 0}, buf[5] - _players[targetId]->headAngle());
+
             _players[targetId]->setHeadAngle(buf[5]);
         } else if (targetId == _socket.ownId()) {
             _player->setHealth(buf[3]);
@@ -83,13 +64,8 @@ void Client::processNewClient(sf::Packet& packet) {
 
 void Client::processDisconnect(sf::Uint16 targetId) {
     if (targetId != _socket.ownId() && _players.count(targetId)) {
-        std::string name = "Player_" + std::to_string(targetId);
-        _world->removeBody(name);
-        _world->removeBody(name + "_head");
-        _world->removeBody(name + "_eye1");
-        _world->removeBody(name + "_eye2");
-
         _players.erase(targetId);
+        _removePlayerCallBack(targetId);
     }
 }
 
@@ -126,49 +102,34 @@ void Client::processCustomPacket(MsgType type, sf::Packet& packet) {
 
             p1 = Point4D(dbuff[0], dbuff[1], dbuff[2]);
             p2 = Point4D(dbuff[3], dbuff[4], dbuff[5]);
-
-            tmp = "Client_fireTraces_" + std::to_string(fireTraces++);
-            _world->addBody(std::make_shared<RigidBody>(Mesh::LineTo(p1, p2, 0.05)), tmp);
-            _world->body(tmp)->setCollider(false);
-
-            _world->body(tmp)->a_color(tmp + "_fadeOut", {255, 255, 255, 0}, 1, Animation::None, Animation::linear);
-            _world->body("Player_im")->a_function(tmp + "delete", [this, tmp](){ deleteTrace(_world, tmp); }, 1, 2);
+            if(_addFireTraceCallBack != nullptr)
+                _addFireTraceCallBack(p1, p2);
 
             break;
         case MsgType::InitBonuses:
             while (packet >> tmp >> dbuff[0] >> dbuff[1] >> dbuff[2]) {
-                tmp2 = tmp.substr(6, tmp.size()-3-5);
-                _world->addBody(std::make_shared<Bonus>(tmp, "../obj/" + tmp2 + ".obj", "../obj/" + tmp2 + "_mat.txt",
-                                                        Point4D{3, 3, 3}), tmp);
-                _world->body(tmp)->translateToPoint(Point4D(dbuff[0], dbuff[1], dbuff[2]));
+                if(_addBonusCallBack != nullptr)
+                    _addBonusCallBack(tmp, Point4D(dbuff[0], dbuff[1], dbuff[2]));
             }
             break;
 
         case MsgType::AddBonus:
             packet >> tmp >> dbuff[0] >> dbuff[1] >> dbuff[2];
-
-            tmp2 = tmp.substr(6, tmp.size()-3-5);
-            _world->addBody(std::make_shared<Bonus>(tmp, "../obj/" + tmp2 + ".obj", "../obj/" + tmp2 + "_mat.txt",
-                                                    Point4D{3, 3, 3}), tmp);
-            _world->body(tmp)->translateToPoint(Point4D(dbuff[0], dbuff[1], dbuff[2]));
+            if(_addBonusCallBack != nullptr)
+                _addBonusCallBack(tmp, Point4D(dbuff[0], dbuff[1], dbuff[2]));
 
             break;
         case MsgType::RemoveBonus:
             packet >> tmp;
-            _world->removeBody(tmp);
+            if(_removeBonusCallBack != nullptr)
+                _removeBonusCallBack(tmp);
             break;
     }
 }
 
 void Client::processDisconnected() {
     for (auto it = _players.begin(); it != _players.end();) {
-        std::string name = "Player_" + std::to_string(it->first);
-
-        _world->removeBody(name);
-        _world->removeBody(name + "_head");
-        _world->removeBody(name + "_eye1");
-        _world->removeBody(name + "_eye2");
-        _players.erase(it++);
+        processDisconnect(it++->first);
     }
 }
 
@@ -188,13 +149,36 @@ void Client::addTrace(const Point4D& from, const Point4D& to) {
     _socket.send(packet, _socket.serverId());
 }
 
-void Client::deleteTrace(std::shared_ptr<World> world, const std::string &traceName) {
-    world->removeBody(traceName);
-}
-
 void Client::takeBonus(const std::string& bonusName) {
     sf::Packet packet;
 
     packet << MsgType::RemoveBonus << bonusName;
     _socket.send(packet, _socket.serverId());
+
+    if(_removeBonusCallBack != nullptr)
+        _removeBonusCallBack(bonusName);
+}
+
+void Client::addPlayer(sf::Uint16 id, std::shared_ptr<Player> player) {
+    _players.insert({ id, player });
+}
+
+void Client::setSpawnPlayerCallBack(std::function<void(sf::Uint16)> spawn) {
+    _spawnPlayerCallBack = std::move(spawn);
+}
+
+void Client::setRemovePlayerCallBack(std::function<void(sf::Uint16)> remove) {
+    _removePlayerCallBack = std::move(remove);
+}
+
+void Client::setAddFireTraceCallBack(std::function<void(const Point4D &, const Point4D &)> addTrace) {
+    _addFireTraceCallBack = std::move(addTrace);
+}
+
+void Client::setAddBonusCallBack(std::function<void(const std::string &, const Point4D &)> addBonus) {
+    _addBonusCallBack = std::move(addBonus);
+}
+
+void Client::setRemoveBonusCallBack(std::function<void(const std::string &)> removeBonus) {
+    _removeBonusCallBack = std::move(removeBonus);
 }
diff --git a/Client.h b/Client.h
index ee517c8..ef20ef9 100755
--- a/Client.h
+++ b/Client.h
@@ -12,19 +12,27 @@
 
 class Client : public ClientUDP {
 private:
-    std::shared_ptr<Player> _player;
-    std::shared_ptr<World> _world;
-
     std::map<sf::Uint16, std::shared_ptr<Player>> _players{};
-
-    int fireTraces = 0;
+    std::shared_ptr<Player> _player;
 
     void spawnPlayer(sf::Uint16 id);
+
+    std::function<void(sf::Uint16)> _spawnPlayerCallBack;
+    std::function<void(sf::Uint16)> _removePlayerCallBack;
+    std::function<void(const Point4D&, const Point4D&)> _addFireTraceCallBack;
+    std::function<void(const std::string&, const Point4D&)> _addBonusCallBack;
+    std::function<void(const std::string&)> _removeBonusCallBack;
 public:
-    Client(std::shared_ptr<Player>  player, std::shared_ptr<World>  world) : _player(player), _world(world) {};
+    Client(std::shared_ptr<Player>  player) : _player(player){};
 
     void updatePacket() override;
 
+    void setSpawnPlayerCallBack(std::function<void(sf::Uint16)> spawn);
+    void setRemovePlayerCallBack(std::function<void(sf::Uint16)> remove);
+    void setAddFireTraceCallBack(std::function<void(const Point4D&, const Point4D&)> addTrace);
+    void setAddBonusCallBack(std::function<void(const std::string&, const Point4D&)> addBonus);
+    void setRemoveBonusCallBack(std::function<void(const std::string&)> removeBonus);
+
     void processInit(sf::Packet& packet) override;
     void processUpdate(sf::Packet& packet) override;
     void processNewClient(sf::Packet& packet) override;
@@ -40,7 +48,7 @@ public:
 
     void addTrace(const Point4D& from, const Point4D& to);
 
-    void deleteTrace(std::shared_ptr<World> world, const std::string& traceName);
+    void addPlayer(sf::Uint16 id, std::shared_ptr<Player> player);
 };
 
 
diff --git a/Player.cpp b/Player.cpp
index cc1188d..0088517 100755
--- a/Player.cpp
+++ b/Player.cpp
@@ -7,47 +7,11 @@
 #include "ResourceManager.h"
 #include "utils/Log.h"
 
-void Player::update() {
-
-}
-
 void Player::rotateWeaponsRelativePoint(const Point4D& point4D, const Point4D& v, double val) {
     for(auto& weapon : _weapons)
         weapon->rotateRelativePoint(point4D, v, val);
 }
 
-void Player::drawStats() {
-    if(_screen == nullptr)
-        return;
-
-    // health bar
-    double xPos = 10;
-    double yPos = _screen->height() - 10 - 10;
-
-    double width = _screen->width()/2 - 20;
-    double height = 10;
-
-    _screen->drawTetragon(Point4D{xPos, yPos},
-                          Point4D{xPos + width, yPos},
-                          Point4D{xPos + width, yPos + height},
-                          Point4D{xPos, yPos + height},
-                          { static_cast<sf::Uint8>((_healthMax - _health)/_healthMax * 255), static_cast<sf::Uint8>(_health * 255 / _healthMax), 0, 100 });
-
-    _screen->drawTetragon(Point4D{xPos, yPos - 15},
-                          Point4D{xPos + width * _ability / _abilityMax, yPos - 15},
-                          Point4D{xPos + width * _ability / _abilityMax, yPos - 15 + height},
-                          Point4D{xPos, yPos - 15 + height},
-                          { 255, 168, 168, 100 });
-
-    auto balance = _weapons[_selectedWeapon]->balance();
-
-    _screen->drawText(std::to_string((int)balance.first),Point4D{150, static_cast<double>(_screen->height() - 50 - 100)},100, sf::Color(0, 0, 0, 100));
-    _screen->drawText(std::to_string((int)balance.second),Point4D{50, static_cast<double>(_screen->height() - 50 - 50)},50, sf::Color(0, 0, 0, 70));
-
-    _screen->drawText("KILLS: " + std::to_string((int)_kills) + " | " + "DEATHS: " + std::to_string((int)_deaths),
-                      Point4D{10, 10},25, sf::Color(0, 0, 0, 100));
-}
-
 void Player::playDeath() {
     _deathSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/classic_hurt.ogg"));
     _deathSound.play();
@@ -81,7 +45,6 @@ void Player::collisionWithObject(const std::string &objName, std::shared_ptr<Rig
         setFullAbility();
 
     if(objName.find("Bonus") != std::string::npos) {
-        _world->removeBody(objName);
         _takeBonusCallBack(objName);
     }
 }
@@ -89,45 +52,44 @@ void Player::collisionWithObject(const std::string &objName, std::shared_ptr<Rig
 void Player::addWeapon(std::shared_ptr<Weapon> weapon) {
     _changeWeaponSound.play();
 
-    if(!_weapons.empty()) {
-        for(auto& w : _weapons) {
-            if (w->name() == weapon->name()) {
-                w->addAmmo(w->initialPack());
-                return;
-            }
+    for(auto& w : _weapons) {
+        if (w->name() == weapon->name()) {
+            w->addAmmo(w->initialPack());
+            return;
         }
     }
 
     _weapons.push_back(weapon);
-    _weapons.back()->attachToPlayer(*this);
+    attach(weapon, weapon->name());
 
     _weapons.back()->translate(position());
     _weapons.back()->rotateRelativePoint(position() + Point4D{0, 1.8, 0}, Point4D{0, 1, 0}, _angle.y());
-    _weapons.back()->rotateRelativePoint(position() + Point4D{0, 1.8, 0}, _camera->left(), _camera->angleLeftUpLookAt().x());
+    _weapons.back()->rotateRelativePoint(position() + Point4D{0, 1.8, 0}, left(), headAngle());
 
     _weapons.back()->setAddTraceCallBack(_addTraceCallBack);
-    _changeWeaponSound.play();
 }
 
 void Player::initWeapons() {
 
     if(!_weapons.empty()) {
-        _weapons[_selectedWeapon]->removeFromWorld(_world);
+        for(auto weapon : _weapons)
+            unattach(weapon->name());
+
+        _removeWeaponCallBack(_weapons[_selectedWeapon]);
         _weapons.clear();
     }
 
     _selectedWeapon = 0;
     addWeapon(std::make_shared<Gun>());
-
-    _weapons[_selectedWeapon]->addToWorld(_world);
+    _addWeaponCallBack(_weapons[_selectedWeapon]);
 }
 
 void Player::nextWeapon() {
     if(_weapons.size() > 1) {
         // change '_selectedWeapon'
-        _weapons[_selectedWeapon]->removeFromWorld(_world);
+        _removeWeaponCallBack(_weapons[_selectedWeapon]);
         _selectedWeapon = (_selectedWeapon + 1) % _weapons.size();
-        _weapons[_selectedWeapon]->addToWorld(_world);
+        _addWeaponCallBack(_weapons[_selectedWeapon]);
         Log::log("selected _selectedWeapon " + std::to_string(_selectedWeapon));
         _changeWeaponSound.play();
     }
@@ -136,19 +98,19 @@ void Player::nextWeapon() {
 void Player::previousWeapon() {
     if(_weapons.size() > 1) {
         // change '_selectedWeapon'
-        _weapons[_selectedWeapon]->removeFromWorld(_world);
+        _removeWeaponCallBack(_weapons[_selectedWeapon]);
         if (_selectedWeapon > 0)
             _selectedWeapon = (_selectedWeapon - 1) % _weapons.size();
         else
             _selectedWeapon = _weapons.size() - 1;
-        _weapons[_selectedWeapon]->addToWorld(_world);
+        _addWeaponCallBack(_weapons[_selectedWeapon]);
         Log::log("selected _selectedWeapon " + std::to_string(_selectedWeapon));
         _changeWeaponSound.play();
     }
 }
 
 void Player::fire() {
-    auto damagedPlayers = _weapons[_selectedWeapon]->fire(_world, _camera);
+    auto damagedPlayers = _weapons[_selectedWeapon]->fire(_rayCastFunction, attached("camera")->position(), attached("camera")->lookAt());
     for(auto& damagedPlayer : damagedPlayers) {
         sf::Uint16 targetId = std::stoi(damagedPlayer.first.substr(7));
         _damagePlayerCallBack(targetId, damagedPlayer.second);
diff --git a/Player.h b/Player.h
index 4ae1687..7274184 100755
--- a/Player.h
+++ b/Player.h
@@ -26,16 +26,11 @@ private:
 
     double _headAngle = 0;
 
-    unsigned _kills = 0;
-    unsigned _deaths = 0;
+    int _kills = 0;
+    int _deaths = 0;
 
     double _g = 35;
 
-    std::shared_ptr<Camera> _camera;
-    std::shared_ptr<Screen> _screen;
-
-    std::shared_ptr<World> _world;
-
     // sounds
     sf::Sound _killSound;
     sf::Sound _deathSound;
@@ -51,7 +46,12 @@ private:
     std::function<void(sf::Uint16 targetId, double)> _damagePlayerCallBack;
     std::function<void(const Point4D&, const Point4D&)> _addTraceCallBack;
     std::function<void(const std::string&)> _takeBonusCallBack;
+    std::function<void(const std::string&)> _fireCallBack;
 
+    std::function<void(std::shared_ptr<Weapon>)> _addWeaponCallBack;
+    std::function<void(std::shared_ptr<Weapon>)> _removeWeaponCallBack;
+
+    std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> _rayCastFunction;
 public:
     Player() {
         loadObj("../obj/cube.obj", "", Point4D{0.5, 1.9, 0.5});
@@ -68,23 +68,7 @@ public:
         setCollisionCallBack([this](const std::string& objName, std::shared_ptr<RigidBody> obj) {collisionWithObject(objName, obj);});
     };
 
-    void update();
-
-    void attachCamera(std::shared_ptr<Camera> camera, std::shared_ptr<Screen> screen) {
-        _camera = camera;
-        _screen = screen;
-
-        _camera->translateToPoint(position() + Point4D{0, 1.8, 0});
-        this->attach(_camera);
-    }
-
-    void attachWorld(std::shared_ptr<World> world, const Point4D& pos = Point4D{0, 30, 0}) {
-        _world = world;
-
-        translate(pos);
-
-        initWeapons();
-    }
+    [[nodiscard]] std::string name() const { return "Player_" + _name; }
 
     void setHealth(double h) {
         _health = h;
@@ -93,13 +77,12 @@ public:
         _ability = a;
     }
 
-    void nextWeapon();
-    void previousWeapon();
-    void fire();
-    void reload();
-
+    [[nodiscard]] double health() const { return _health; }
     [[nodiscard]] double ability() const { return _ability; }
 
+    [[nodiscard]] double maxHealth() const { return _healthMax; }
+    [[nodiscard]] double maxAbility() const { return _abilityMax; }
+
     void setFullHealth() {
         _health = _healthMax;
         _fullHealthSound.play();
@@ -109,32 +92,19 @@ public:
         _fullAbilitySound.play();
     }
 
+    void initWeapons();
+    void addWeapon(std::shared_ptr<Weapon> weapon);
+    [[nodiscard]] std::pair<double, double> balance() const{ return _weapons[_selectedWeapon]->balance();}
 
-    void setDamagePlayerCallBack(std::function<void(sf::Uint16 targetId, double)> hit) {
-        _damagePlayerCallBack = std::move(hit);
-    }
-
-    void setAddTraceCallBack(std::function<void(const Point4D&, const Point4D&)> add) {
-        _addTraceCallBack = std::move(add);
-    }
-
-    void setTakeBonusCallBack(std::function<void(const std::string&)> take) {
-        _takeBonusCallBack = std::move(take);
-    }
-
-    [[nodiscard]] double health() const { return _health; }
-    [[nodiscard]] std::string name() const { return "Player_" + _name; }
-
-
-    std::shared_ptr<Camera> camera() { return _camera; }
-
-    // This is for situation when you want to store the position of the head but you dont have attached camera
-    void setHeadAngle(double a) { _headAngle = a; }
-    [[nodiscard]] double headAngle() const { return _headAngle; };
+    void nextWeapon();
+    void previousWeapon();
+    void fire();
+    void reload();
 
     void rotateWeaponsRelativePoint(const Point4D& point4D, const Point4D& v, double val);
 
-    void drawStats();
+    [[nodiscard]] int kills() const {return _kills;}
+    [[nodiscard]] int deaths() const {return _deaths;}
 
     void addKill() { _kills++; }
     void addDeath() { _deaths++; }
@@ -142,11 +112,30 @@ public:
     void playDeath();
     void playKill();
 
+    void setDamagePlayerCallBack(std::function<void(sf::Uint16 targetId, double)> hit) {
+        _damagePlayerCallBack = std::move(hit);
+    }
+    void setAddTraceCallBack(std::function<void(const Point4D&, const Point4D&)> add) {
+        _addTraceCallBack = std::move(add);
+    }
+    void setTakeBonusCallBack(std::function<void(const std::string&)> take) {
+        _takeBonusCallBack = std::move(take);
+    }
+    void setAddWeaponCallBack(std::function<void(std::shared_ptr<Weapon>)> addWeapon) {
+        _addWeaponCallBack = addWeapon;
+    }
+    void setRemoveWeaponCallBack(std::function<void(std::shared_ptr<Weapon>)> removeWeapon) {
+        _removeWeaponCallBack = std::move(removeWeapon);
+    }
+    void setRayCastFunction(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction) {
+        _rayCastFunction = std::move(rayCastFunction);
+    }
+
+    // This is for situation when you want to store the position of the head but you dont have attached camera
+    void setHeadAngle(double a) { _headAngle = a; }
+    [[nodiscard]] double headAngle() const { return _headAngle; };
+
     void collisionWithObject(const std::string& objName, std::shared_ptr<RigidBody> obj);
-
-    void addWeapon(std::shared_ptr<Weapon> weapon);
-
-    void initWeapons();
 };
 
 
diff --git a/PlayerController.cpp b/PlayerController.cpp
index 9d21218..10cfa08 100644
--- a/PlayerController.cpp
+++ b/PlayerController.cpp
@@ -3,11 +3,16 @@
 //
 
 #include "PlayerController.h"
+#include "utils/Log.h"
+#include "animation/AColor.h"
+#include "animation/AFunction.h"
+#include "animation/AWait.h"
+#include "animation/ATranslate.h"
+#include "animation/ATranslateToPoint.h"
 
 PlayerController::PlayerController(std::shared_ptr<Player> player,
-                                   std::shared_ptr<World> world,
                                    std::shared_ptr<Keyboard> keyboard,
-                                   std::shared_ptr<Mouse> mouse) : _player(player), _world(world), _keyboard(keyboard), _mouse(mouse) {
+                                   std::shared_ptr<Mouse> mouse) : _player(player), _keyboard(keyboard), _mouse(mouse) {
     _slowMoSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/slow_mo.ogg"));
     _unSlowMoSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/unslow_mo.ogg"));
 }
@@ -38,51 +43,50 @@ void PlayerController::update() {
                     Keyboard::isKeyPressed(sf::Keyboard::W) ||
                     Keyboard::isKeyPressed(sf::Keyboard::S));
 
-    // in case when the camera is attached we make some animation during running
-    if(_inRunning && !_player->camera()->isInAnim()) {
-        _player->camera()->a_translate("hor_oscil", -_player->camera()->left()/12, 0.3/coeff, Animation::LoopOut::None, Animation::cos);
-        _player->camera()->a_wait("hor_oscil", 0);
-        _player->camera()->a_translate("hor_oscil", _player->camera()->left()/12, 0.3/coeff, Animation::LoopOut::None, Animation::cos);
+    std::shared_ptr<Object> camera = _player->attached("camera");
+    if(_inRunning) {
+        if (!camera->isInAnim()) {
+            camera->animate("hor_oscil", new ATranslate(camera, -camera->left() / 6, 0.3,Animation::LoopOut::None, Animation::cos));
+            camera->animate("hor_oscil", new AWait(0));
+            camera->animate("hor_oscil", new ATranslate(camera, camera->left() / 6, 0.3, Animation::LoopOut::None, Animation::cos));
 
-        _player->camera()->a_translate("vert_oscil", -Point4D{0, 1, 0}/24, 0.15/coeff, Animation::LoopOut::None, Animation::cos);
-        _player->camera()->a_wait("vert_oscil", 0);
-        _player->camera()->a_translate("vert_oscil", Point4D{0, 1, 0}/24, 0.15/coeff, Animation::LoopOut::None, Animation::cos);
-        _player->camera()->a_wait("vert_oscil", 0);
-        _player->camera()->a_translate("vert_oscil", -Point4D{0, 1, 0}/24, 0.15/coeff, Animation::LoopOut::None, Animation::cos);
-        _player->camera()->a_wait("vert_oscil", 0);
-        _player->camera()->a_translate("vert_oscil", Point4D{0, 1, 0}/24, 0.15/coeff, Animation::LoopOut::None, Animation::cos);
-
-        _player->camera()->a_translateToPoint("init", _player->position() + Point4D{0, 1.8, 0}, 0.3/coeff, Animation::None, Animation::cos);
+            camera->animate("vert_oscil", new ATranslate(camera, -Point4D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None, Animation::cos));
+            camera->animate("vert_oscil", new AWait(0));
+            camera->animate("vert_oscil", new ATranslate(camera, Point4D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None,Animation::cos));
+            camera->animate("vert_oscil", new AWait(0));
+            camera->animate("vert_oscil", new ATranslate(camera, -Point4D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None, Animation::cos));
+            camera->animate("vert_oscil", new AWait(0));
+            camera->animate("vert_oscil", new ATranslate(camera, Point4D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None, Animation::cos));
 
+            camera->animate("init", new ATranslateToPoint( camera, _player->position() + Point4D{0, 1.8, 0}, 0.3, Animation::None, Animation::cos));
+        }
     } else if(inRunning_old && !_inRunning) {
-        _player->camera()->a_stopAllAnimations();
-
-        _player->camera()->a_translateToPoint("init", _player->position() + Point4D{0, 1.8, 0}, 0.15/coeff, Animation::None, Animation::cos);
+        camera->stopAllAnimations();
+        camera->animate("init", new ATranslateToPoint( camera, _player->position() + Point4D{0, 1.8, 0}, 0.15, Animation::None, Animation::cos));
     }
 
-    auto rayToFloor = (*_world).rayCast(_player->position(), _player->position() + Point4D{0, -5, 0});
-
     // Left and right
+
     if (Keyboard::isKeyPressed(sf::Keyboard::A)) {
-        _player->translate(_player->camera()->left() * Time::deltaTime() * _walkSpeed * coeff);
+        _player->translate(_player->left() * Time::deltaTime() * _walkSpeed * coeff);
         if(_player->inCollision())
             _player->setVelocity(Point4D{0,0,0});
     }
     if (Keyboard::isKeyPressed(sf::Keyboard::D)) {
-        _player->translate(-_player->camera()->left() * Time::deltaTime() * _walkSpeed * coeff);
+        _player->translate(-_player->left() * Time::deltaTime() * _walkSpeed * coeff);
         if(_player->inCollision())
             _player->setVelocity(Point4D{0,0,0});
     }
 
     // Forward and backward
     if (Keyboard::isKeyPressed(sf::Keyboard::W)) {
-        _player->translate(_player->camera()->left().cross3D(Point4D{0, 1, 0}) * Time::deltaTime() * _walkSpeed * coeff);
+        _player->translate(_player->lookAt() * Time::deltaTime() * _walkSpeed * coeff);
         if(_player->inCollision())
             _player->setVelocity(Point4D{0,0,0});
     }
 
     if (Keyboard::isKeyPressed(sf::Keyboard::S)) {
-        _player->translate(-_player->camera()->left().cross3D(Point4D{0, 1, 0}) * Time::deltaTime() * _walkSpeed * coeff);
+        _player->translate(-_player->lookAt() * Time::deltaTime() * _walkSpeed * coeff);
 
         if(_player->inCollision())
             _player->setVelocity(Point4D{0,0,0});
@@ -109,21 +113,21 @@ void PlayerController::update() {
     }
 
     // Mouse movement
-    Point4D disp = _mouse->getMouseDisplacement();
+    Point4D displacement = _mouse->getMouseDisplacement();
 
-    _player->rotate(Point4D{0, -disp.x() / 1000.0, 0});
-    _player->setVelocity(Matrix4x4::RotationY(-disp.x() / 1000.0) * _player->velocity());
+    _player->rotate(Point4D{0, -displacement.x() / 1000.0, 0});
+    _player->setVelocity(Matrix4x4::RotationY(-displacement.x() / 1000.0) * _player->velocity());
 
-    double rotationLeft = disp.y() / 1000.0;
+    double rotationLeft = displacement.y() / 1000.0;
 
     // You can only see in range [-90 : 90] grad
-    if (_player->camera()->angleLeftUpLookAt().x() + rotationLeft > M_PI / 2)
-        rotationLeft = M_PI / 2 - _player->camera()->angleLeftUpLookAt().x();
-    if (_player->camera()->angleLeftUpLookAt().x() + rotationLeft < -M_PI / 2)
-        rotationLeft = -M_PI / 2 - _player->camera()->angleLeftUpLookAt().x();
+    if (_player->headAngle() + rotationLeft > M_PI / 2)
+        rotationLeft = M_PI / 2 - _player->headAngle();
+    if (_player->headAngle() + rotationLeft < -M_PI / 2)
+        rotationLeft = -M_PI / 2 - _player->headAngle();
 
-    _player->camera()->rotateLeft(rotationLeft);
-    _player->rotateWeaponsRelativePoint(_player->position() + Point4D{0, 1.8, 0}, _player->camera()->left(), rotationLeft);
+    _player->setHeadAngle(_player->headAngle() + rotationLeft);
+    _player->rotateWeaponsRelativePoint(_player->position() + Point4D{0, 1.8, 0}, _player->left(), rotationLeft);
 
     if (_keyboard->isKeyTapped(sf::Keyboard::Right) || _keyboard->isKeyTapped(sf::Keyboard::E)) {
         _player->nextWeapon();
@@ -141,11 +145,9 @@ void PlayerController::update() {
         _player->reload();
     }
 
-    if (_inRunning && _player->inCollision() && _walkSound.getStatus() != sf::Sound::Status::Playing) {
-        if ((_player->position() - rayToFloor.first).abs() < 2) {
-            int soundNum = round((double) rand() / RAND_MAX * 5) + 1;
-            _walkSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/stonestep" + std::to_string(soundNum) + ".ogg"));
-            _walkSound.play();
-        }
+    if ((_inRunning || _player->velocity().sqrAbs() > 3) && _player->inCollision() && _walkSound.getStatus() != sf::Sound::Status::Playing) {
+        int soundNum = round((double) rand() / RAND_MAX * 5) + 1;
+        _walkSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/stonestep" + std::to_string(soundNum) + ".ogg"));
+        _walkSound.play();
     }
 }
diff --git a/PlayerController.h b/PlayerController.h
index 2f88bfb..5622aa5 100644
--- a/PlayerController.h
+++ b/PlayerController.h
@@ -12,8 +12,6 @@
 class PlayerController {
 private:
     std::shared_ptr<Player> _player;
-    std::shared_ptr<World> _world;
-
     std::shared_ptr<Keyboard> _keyboard;
     std::shared_ptr<Mouse> _mouse;
 
@@ -30,7 +28,7 @@ private:
     double _jumpHeight = 3;
     double _walkSpeed = 10;
 public:
-    PlayerController(std::shared_ptr<Player> player, std::shared_ptr<World> world, std::shared_ptr<Keyboard> keyboard, std::shared_ptr<Mouse> mouse);
+    PlayerController(std::shared_ptr<Player> player, std::shared_ptr<Keyboard> keyboard, std::shared_ptr<Mouse> mouse);
     void update();
 };
 
diff --git a/Shooter.cpp b/Shooter.cpp
new file mode 100644
index 0000000..3767d77
--- /dev/null
+++ b/Shooter.cpp
@@ -0,0 +1,269 @@
+//
+// Created by Иван Ильин on 22.09.2021.
+//
+
+#include "Shooter.h"
+#include <fstream>
+#include "animation/AColor.h"
+#include "animation/AFunction.h"
+#include "animation/ATranslate.h"
+#include "animation/ARotate.h"
+
+using namespace std;
+
+// Read server/client settings and start both.
+// If client doesn't connect to the localhost - server doesn't start.
+void Shooter::InitNetwork()
+{
+    std::string clientIp;
+    sf::Uint16 clientPort;
+    sf::Uint16 serverPort;
+    std::ifstream connectFile("connect.txt", std::ifstream::in);
+
+    // If failed to read client settings
+    if (!connectFile.is_open() || !(connectFile >> clientIp >> clientPort) || sf::IpAddress(clientIp) == sf::IpAddress::None)
+    {
+        connectFile.close();
+        // Create file and write default settings
+        clientIp = "127.0.0.1";
+        clientPort = 54000;
+        std::ofstream temp("connect.txt", std::ofstream::out);
+        temp << clientIp << std::endl << clientPort;
+        temp.close();
+    }
+    connectFile.close();
+
+    // If failed to read server settings
+    connectFile.open("server.txt", std::ifstream::in);
+    if (!connectFile.is_open() || !(connectFile >> serverPort))
+    {
+        connectFile.close();
+        // Create file and write default settings
+        serverPort = 54000;
+        std::ofstream temp("server.txt", std::ofstream::out);
+        temp << serverPort;
+        temp.close();
+    }
+    connectFile.close();
+
+    if (clientIp == sf::IpAddress::LocalHost) {
+        server->start(serverPort);
+        if(server->isWorking())
+            server->generateBonuses();
+    }
+
+    client->connect(clientIp, clientPort);
+
+    client->setSpawnPlayerCallBack([this](sf::Uint16 id){ spawnPlayer(id); });
+    client->setRemovePlayerCallBack([this](sf::Uint16 id){ removePlayer(id); });
+    client->setAddFireTraceCallBack([this](const Point4D& from, const Point4D& to){ addFireTrace(from, to); });
+    client->setAddBonusCallBack([this](const std::string& bonusName, const Point4D& position){ addBonus(bonusName, position); });
+    client->setRemoveBonusCallBack([this](const std::string& bonusName){ removeBonus(bonusName); });
+}
+
+void Shooter::start() {
+    // This code executed once in the beginning:
+    setDebugText(false);
+    setUpdateWorld(false);
+
+    mouse->setMouseCursorVisible(true);
+
+    world->loadMap("../maps/map1.obj", "map", Point4D{5, 5, 5});
+
+    player = std::make_shared<Player>();
+    playerController = std::make_shared<PlayerController>(player, keyboard, mouse);
+
+    player->setAddTraceCallBack([this](const Point4D& from, const Point4D& to){ client->addTrace(from, to); addFireTrace(from, to); });
+    player->setDamagePlayerCallBack([this] (sf::Uint16 targetId, double damage) { client->damagePlayer(targetId, damage); });
+    player->setRayCastFunction([this](const Point4D& from, const Point4D& to) { return world->rayCast(from, to); });
+    player->setTakeBonusCallBack([this] (const string& bonusName) { client->takeBonus(bonusName); });
+
+    player->setAddWeaponCallBack([this](std::shared_ptr<Weapon> weapon){ addWeapon(weapon); });
+    player->setRemoveWeaponCallBack([this](std::shared_ptr<Weapon> weapon){ removeWeapon(weapon); });
+    player->initWeapons();
+
+    camera->translateToPoint(player->position() + Point4D{0, 1.8, 0});
+    player->attach(camera, "camera");
+
+    world->addBody(player, player->name());
+    player->translate(Point4D{0, 10, 0});
+
+    client = std::make_shared<Client>(player);
+    server = std::make_shared<Server>();
+
+    // windows init:
+    mainMenu.title("Main menu");
+    mainMenu.setBackgroundTexture("../textures/back.png", 1.1, 1.1, screen->width(), screen->height());
+
+    mainMenu.addButton(screen->width()/2, 200, 200, 20, [this] () { this->play(); }, "Play", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
+    mainMenu.addButton(screen->width()/2, 350, 200, 20, [this] () { this->player->translateToPoint(Point4D{0, 0, 0}); this->player->setVelocity({}); this->play(); }, "Respawn", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
+
+    mainMenu.addButton(screen->width()/2, 500, 200, 20, [this] () { client->disconnect(); server->stop(); this->exit();}, "Exit", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
+
+    // connecting to the server
+    InitNetwork();
+    // Waiting for connect and updating server if it's same window
+    while (client->isWorking() && !client->connected())
+    {
+        client->update();
+        server->update();
+        Time::update();
+    }
+    // If connect fail - return to menu
+    if (!client->isWorking())
+    {
+        inGame = false;
+        server->stop();
+    }
+}
+
+void Shooter::update() {
+    // This code executed every time step:
+
+    server->update();
+    client->update();
+
+    // Check all input after this condition please
+    if (!screen->hasFocus())
+        return;
+
+    if(keyboard->isKeyTapped(sf::Keyboard::Escape)) {
+        inGame = !inGame;
+        mouse->setMouseCursorVisible(!inGame);
+    }
+
+    if(inGame) {
+        screen->setTitle("Shooter");
+        playerController->update();
+        mouse->setMouseInCenter();
+        camera->rotateLeft(player->headAngle() - camera->angleLeftUpLookAt().x());
+
+    } else {
+        mainMenu.update();
+    }
+
+    setUpdateWorld(inGame);
+
+    // background sounds and music control
+    if(backgroundNoise.getStatus() != sf::Sound::Status::Playing) {
+        backgroundNoise.setBuffer(*ResourceManager::loadSoundBuffer("../sound/backNoise.ogg"));
+        backgroundNoise.play();
+    }
+}
+
+void Shooter::gui() {
+
+    sf::Sprite sprite;
+    sprite.setTexture(*ResourceManager::loadTexture("../textures/gui.png"));
+    sprite.setTextureRect(sf::IntRect(243, 3, 9, 9));
+    sprite.scale(3, 3);
+    sprite.setPosition(screen->width() / 2.0 - 27.0/2.0, screen->height() / 2 - 27.0/2.0);
+    sprite.setColor(sf::Color(0,0,0, 200));
+    screen->drawSprite(sprite);
+
+    // health player stats
+    drawPlayerStats();
+}
+
+void Shooter::drawPlayerStats() {
+    // health bar
+    double xPos = 10;
+    double yPos = screen->height() - 10 - 10;
+
+    int width = screen->width()/2 - 20;
+    int height = 10;
+
+    screen->drawTetragon(Point4D{xPos, yPos},
+                         Point4D{xPos + width * player->health() / player->maxHealth(), yPos},
+                         Point4D{xPos + width * player->health() / player->maxHealth(), yPos + height},
+                         Point4D{xPos, yPos + height},
+                         { static_cast<sf::Uint8>((player->maxHealth() - player->health())/player->maxHealth() * 255), static_cast<sf::Uint8>(player->health() * 255 / player->maxHealth()), 0, 100 });
+
+    screen->drawTetragon(Point4D{xPos, yPos - 15},
+                         Point4D{xPos + width * player->ability() / player->maxAbility(), yPos - 15},
+                         Point4D{xPos + width * player->ability() / player->maxAbility(), yPos - 15 + height},
+                         Point4D{xPos, yPos - 15 + height},
+                         { 255, 168, 168, 100 });
+
+    auto balance = player->balance();
+
+    screen->drawText(std::to_string((int)balance.first),Point4D{150, static_cast<double>(screen->height() - 50 - 100)},100, sf::Color(0, 0, 0, 100));
+    screen->drawText(std::to_string((int)balance.second),Point4D{50, static_cast<double>(screen->height() - 50 - 50)},50, sf::Color(0, 0, 0, 70));
+
+    screen->drawText("KILLS: " + std::to_string(player->kills()) + " | " + "DEATHS: " + std::to_string(player->deaths()),
+                     Point4D{10, 10},25, sf::Color(0, 0, 0, 100));
+}
+
+void Shooter::play() {
+    inGame = true;
+    mouse->setMouseCursorVisible(false);
+}
+
+void Shooter::spawnPlayer(sf::Uint16 id) {
+    std::string name = "Player_" + std::to_string(id);
+    std::shared_ptr<Player> newPlayer = std::make_shared<Player>();
+    newPlayer->setCollision(false);
+
+    client->addPlayer(id, newPlayer);
+    world->addBody(newPlayer, name);
+    newPlayer->setVisible(true);
+    newPlayer->setAcceleration(Point4D{0, 0, 0});
+
+    // add head and other stuff:
+    world->loadBody(name + "_head", "../obj/cube.obj", "", Point4D{0.7, 0.7, 0.7});
+    world->body(name + "_head")->translate(Point4D{0, 2, 0});
+    world->body(name + "_head")->setCollider(false);
+    newPlayer->attach(world->body(name + "_head"), "head");
+
+    world->loadBody(name + "_eye1", "../obj/cube.obj", "", Point4D{0.2, 0.2, 0.05});
+    world->body(name + "_eye1")->translate(Point4D{0.3, 2.1, 0.7});
+    world->body(name + "_eye1")->setCollider(false);
+    world->body(name + "_eye1")->setColor({147, 159, 255});
+    world->body(name + "_head")->attach(world->body(name + "_eye1"), "eye1");
+
+    world->loadBody(name + "_eye2", "../obj/cube.obj", "", Point4D{0.2, 0.2, 0.05});
+    world->body(name + "_eye2")->translate(Point4D{-0.3, 2.1, 0.7});
+    world->body(name + "_eye2")->setCollider(false);
+    world->body(name + "_eye2")->setColor({147, 159, 255});
+    world->body(name + "_head")->attach(world->body(name + "_eye2"), "eye2");
+}
+
+void Shooter::removePlayer(sf::Uint16 id) {
+    std::string name = "Player_" + std::to_string(id);
+    world->removeBody(name);
+    world->removeBody(name + "_head");
+    world->removeBody(name + "_eye1");
+    world->removeBody(name + "_eye2");
+}
+
+void Shooter::addFireTrace(const Point4D &from, const Point4D &to) {
+    std::string traceName = "Client_fireTraces_" + std::to_string(fireTraces++);
+    world->addBody(std::make_shared<RigidBody>(Mesh::LineTo(from, to, 0.05)), traceName);
+    world->body(traceName)->setCollider(false);
+
+    world->body(traceName)->animate(traceName + "_fadeOut", new AColor(world->body(traceName), {255, 255, 255, 0}));
+    world->body("Player_im")->animate(traceName + "delete", new AFunction([this, traceName](){ deleteFireTrace(traceName); }, 1, 2));
+}
+
+void Shooter::deleteFireTrace(const std::string& traceName) {
+    world->removeBody(traceName);
+}
+
+void Shooter::addBonus(const string &bonusName, const Point4D &position) {
+    std::string name = bonusName.substr(6, bonusName.size()-3-5);
+    world->addBody(std::make_shared<Bonus>(bonusName, "../obj/" + name + ".obj", "../obj/" + name + "_mat.txt", Point4D{3, 3, 3}), bonusName);
+    world->body(bonusName)->translateToPoint(position);
+    world->body(bonusName)->animate("a_rotation", new ARotate(world->body(bonusName), Point4D{0, 2*M_PI, 0}, 4, Animation::Continue, Animation::linear));
+}
+
+void Shooter::removeBonus(const string &bonusName) {
+    world->removeBody(bonusName);
+}
+
+void Shooter::addWeapon(std::shared_ptr<Weapon> weapon) {
+    world->addBody(weapon, weapon->name());
+}
+
+void Shooter::removeWeapon(std::shared_ptr<Weapon> weapon) {
+    world->removeBodyInstantly(weapon->name());
+}
diff --git a/Shooter.h b/Shooter.h
new file mode 100644
index 0000000..255dd4b
--- /dev/null
+++ b/Shooter.h
@@ -0,0 +1,57 @@
+//
+// Created by Иван Ильин on 22.09.2021.
+//
+
+#ifndef SHOOTER_SHOOTER_H
+#define SHOOTER_SHOOTER_H
+
+#include "Engine.h"
+#include "Player.h"
+#include "PlayerController.h"
+#include "PlayerController.h"
+#include "gui/Window.h"
+
+#include "Client.h"
+#include "Server.h"
+
+
+class Shooter : public Engine {
+private:
+    std::shared_ptr<Player> player;
+    std::shared_ptr<PlayerController> playerController;
+
+    sf::Sound backgroundNoise;
+
+    Window mainMenu;
+
+    std::shared_ptr<Server> server;
+    std::shared_ptr<Client> client;
+
+    bool inGame = false;
+
+    int fireTraces = 0;
+
+    void start() override;
+    void update() override;
+
+    void gui() override;
+
+    void play();
+
+    void drawPlayerStats();
+    void InitNetwork();
+
+    void spawnPlayer(sf::Uint16 id);
+    void removePlayer(sf::Uint16 id);
+    void addFireTrace(const Point4D& from, const Point4D& to);
+    void deleteFireTrace(const std::string& traceName);
+    void addBonus(const std::string& bonusName, const Point4D& position);
+    void removeBonus(const std::string& bonusName);
+    void addWeapon(std::shared_ptr<Weapon> weapon);
+    void removeWeapon(std::shared_ptr<Weapon> weapon);
+public:
+    Shooter() : mainMenu(screen, mouse) {};
+};
+
+
+#endif //SHOOTER_SHOOTER_H
diff --git a/engine/Camera.cpp b/engine/Camera.cpp
index ff65b70..af1e542 100755
--- a/engine/Camera.cpp
+++ b/engine/Camera.cpp
@@ -76,7 +76,6 @@ std::vector<Triangle> &Camera::project(std::shared_ptr<Mesh> mesh) {
 void Camera::init(int width, int height, double fov, double ZNear, double ZFar) {
     // We need to init camera only after creation or changing width, height, fov, ZNear or ZFar.
     // Because here we calculate matrix that does not change during the motion of _objects or camera
-    _w = width; _h = height;
     _aspect = (double)width / (double)height;
     _P = Matrix4x4::Projection(fov, _aspect, ZNear, ZFar);
     _S = Matrix4x4::ScreenSpace(width, height);
@@ -127,108 +126,3 @@ void Camera::clear() {
     _triangles.clear();
     _V = Matrix4x4::View(_left, _up, _lookAt, _position);
 }
-
-void Camera::rotateX(double rx) {
-    _angle = Point4D{_angle.x() + rx, _angle.y(), _angle.z()};
-    _left = Matrix4x4::RotationX(rx) * _left;
-    _up = Matrix4x4::RotationX(rx) * _up;
-    _lookAt = Matrix4x4::RotationX(rx) * _lookAt;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), Point4D{rx, 0, 0});
-}
-
-void Camera::rotateY(double ry) {
-    _angle = Point4D{_angle.x(), _angle.y() + ry, _angle.z()};
-    _left = Matrix4x4::RotationY(ry) * _left;
-    _up = Matrix4x4::RotationY(ry) * _up;
-    _lookAt = Matrix4x4::RotationY(ry) * _lookAt;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), Point4D{0, ry, 0});
-}
-
-void Camera::rotateZ(double rz) {
-    _angle = Point4D{_angle.x(), _angle.y(), _angle.z() + rz};
-    _left = Matrix4x4::RotationZ(rz) * _left;
-    _up = Matrix4x4::RotationZ(rz) * _up;
-    _lookAt = Matrix4x4::RotationZ(rz) * _lookAt;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), Point4D{0, 0, rz});
-}
-
-void Camera::rotate(const Point4D& r) {
-    rotateX(r.x());
-    rotateY(r.y());
-    rotateZ(r.z());
-}
-
-
-void Camera::rotate(const Point4D& v, double rv) {
-    _left = Matrix4x4::Rotation(v, rv) * _left;
-    _up = Matrix4x4::Rotation(v, rv) * _up;
-    _lookAt = Matrix4x4::Rotation(v, rv) * _lookAt;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), v, rv);
-}
-
-void Camera::rotateLeft(double rl) {
-    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x() + rl, _angleLeftUpLookAt.y(), _angleLeftUpLookAt.z()};
-
-    rotate(_left, rl);
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), _left, rl);
-}
-
-void Camera::rotateUp(double ru) {
-    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x(), _angleLeftUpLookAt.y() + ru, _angleLeftUpLookAt.z()};
-    rotate(_up, ru);
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), _up, ru);
-}
-
-void Camera::rotateLookAt(double rlAt) {
-    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x(), _angleLeftUpLookAt.y(), _angleLeftUpLookAt.z() + rlAt};
-    rotate(_lookAt, rlAt);
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), _lookAt, rlAt);
-}
-
-void Camera::rotateRelativePoint(const Point4D &s, const Point4D &r) {
-    _angle = _angle + r;
-
-    // Translate XYZ by vector r1
-    Point4D r1 = _position - s;
-    // In translated coordinate system we rotate camera and position
-    Point4D r2 = Matrix4x4::Rotation(r)*r1;
-    rotate(r);
-
-    // After rotation we translate XYZ by vector -r2 and recalculate position
-    _position = s + r2;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(s, r);
-}
-
-void Camera::rotateRelativePoint(const Point4D &s, const Point4D &v, double r) {
-    // Translate XYZ by vector r1
-    Point4D r1 = _position - s;
-    // In translated coordinate system we rotate camera and position
-    Point4D r2 = Matrix4x4::Rotation(v, r)*r1;
-    rotate(v, r);
-
-    // After rotation we translate XYZ by vector -r2 and recalculate position
-    _position = s + r2;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(s, v, r);
-}
-
-void Camera::translateToPoint(const Point4D &point) {
-    translate(point - _position);
-}
diff --git a/engine/Camera.h b/engine/Camera.h
index fe74659..58d1f23 100755
--- a/engine/Camera.h
+++ b/engine/Camera.h
@@ -10,30 +10,20 @@
 #include "Plane.h"
 #include "Mesh.h"
 
-class Camera : public Object, public Animatable{
+class Camera : public Object{
 private:
-    Point4D _angleLeftUpLookAt;
-
-    Point4D _left =    Point4D{1, 0, 0, 0}; // internal X
-    Point4D _up =      Point4D{0, 1, 0, 0}; // internal Y
-    Point4D _lookAt =  Point4D{0, 0, 1, 0}; // internal Z
-
     Matrix4x4 _S; // screen space matrix
     Matrix4x4 _P; // projections matrix
     Matrix4x4 _V; // camera matrix
 
-    double _aspect = 0;
-
     // To accelerate calculations we can use precalculated matrix that does not chance
     Matrix4x4 _SP; // screen-space-projections matrix
 
-    std::vector<Triangle> _triangles;
-    std::vector<Plane> _clipPlanes;
+    std::vector<Triangle> _triangles{};
+    std::vector<Plane> _clipPlanes{};
 
     bool _ready = false;
-
-    double _w = 0;
-    double _h = 0;
+    double _aspect = 0;
 public:
     Camera() = default;
     Camera(const Camera& camera) = delete;
@@ -46,42 +36,6 @@ public:
 
     [[nodiscard]] int buffSize() const { return _triangles.size(); }
     std::vector<Triangle>& sorted();
-
-    [[nodiscard]] Point4D position() const override { return _position; }
-    [[nodiscard]] Point4D angle() const override { return _angle; }
-    [[nodiscard]] Point4D angleLeftUpLookAt() const { return _angleLeftUpLookAt; }
-
-    [[nodiscard]] Point4D eye() const { return _position; }
-    [[nodiscard]] Point4D left() const { return _left; }
-    [[nodiscard]] Point4D right() const { return -_left; }
-    [[nodiscard]] Point4D up() const { return _up; }
-    [[nodiscard]] Point4D down() const { return -_up; }
-    [[nodiscard]] Point4D lookAt() const { return _lookAt; }
-
-    void translate(const Point4D& dv) override {
-        _position = _position + dv;
-
-        for(auto attached : _attachedObjects)
-            attached->translate(dv);
-    }
-
-    void translateToPoint(const Point4D& point);
-
-    void rotateX(double rx);
-    void rotateY(double ry);
-    void rotateZ(double rz);
-    void rotate(const Point4D& r) override;
-
-    void rotate(const Point4D& v, double rv) override;
-
-    void rotateLeft(double rl);
-    void rotateUp(double ru);
-    void rotateLookAt(double rlAt);
-
-    // Rotate body around XYZ by (r.x, r.y, r.z) radians relative val 'point4D'
-    void rotateRelativePoint(const Point4D& s, const Point4D& r) override;
-    // Rotate body around normalised vector 'v' by 'r' radians relative val 'point4D'
-    void rotateRelativePoint(const Point4D& s, const Point4D& v, double r) override;
 };
 
 
diff --git a/engine/Engine.cpp b/engine/Engine.cpp
index 18bac95..6330063 100755
--- a/engine/Engine.cpp
+++ b/engine/Engine.cpp
@@ -47,7 +47,7 @@ void Engine::create(int screenWidth, int screenHeight, const std::string &name,
         // hence we can set '_updateWorld' equal to false in setUpdateWorld(bool):
         if(_updateWorld) {
 
-            camera->a_update();
+            camera->update_animations();
             camera->clear();
 
             world->update();
@@ -80,9 +80,9 @@ void Engine::exit() {
 void Engine::printDebugText() const {
     if (_debugText) {
         screen->debugText(_name + "\n\n X: " +
-                          std::to_string((camera->eye().x())) + "\n Y: " +
-                          std::to_string((camera->eye().y())) + "\n Z: " +
-                          std::to_string((camera->eye().z())) + "\n\n" +
+                          std::to_string((camera->position().x())) + "\n Y: " +
+                          std::to_string((camera->position().y())) + "\n Z: " +
+                          std::to_string((camera->position().z())) + "\n\n" +
                           std::to_string(screen->width()) + "x" +
                           std::to_string(screen->height()) + "\n" +
                           std::to_string(Time::fps()) +
diff --git a/engine/Engine.h b/engine/Engine.h
index 0874769..046dbb8 100755
--- a/engine/Engine.h
+++ b/engine/Engine.h
@@ -30,21 +30,20 @@ protected:
     std::shared_ptr<World> world;
     std::shared_ptr<Camera> camera;
 
+    virtual void start() {};
+    virtual void update() {};
+
+    void setDebugText(bool value) { _debugText = value; }
+    void setUpdateWorld(bool value) { _updateWorld = value; }
+
+    virtual void gui(){}
 public:
     Engine();
 
     virtual ~Engine() = default;
 
     void create(int screenWidth = 1920, int screenHeight = 1080, const std::string& name = "engine", bool verticalSync = true, sf::Color background = sf::Color(255, 255, 255), sf::Uint32 style = sf::Style::Default);
-
-    virtual void start() {};
-    virtual void update() {};
     void exit();
-
-    void setDebugText(bool value) { _debugText = value; }
-    void setUpdateWorld(bool value) { _updateWorld = value; }
-
-    virtual void gui(){}
 };
 
 
diff --git a/engine/Mesh.cpp b/engine/Mesh.cpp
index 96c3f38..0b5c520 100755
--- a/engine/Mesh.cpp
+++ b/engine/Mesh.cpp
@@ -46,31 +46,18 @@ Mesh Mesh::Obj(const std::string& filename) {
 }
 
 void Mesh::rotate(const Point4D &r) {
-    _angle = _angle + r;
+    Object::rotate(r);
     *this *= Matrix4x4::Rotation(r);
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), r);
 }
 
 void Mesh::rotate(const Point4D &v, double r) {
+    Object::rotate(v, r);
     *this *= Matrix4x4::Rotation(v, r);
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(position(), v, r);
 }
 
 void Mesh::scale(const Point4D &s) {
+    Object::scale(s);
     *this *= Matrix4x4::Scale(s);
-
-    // TODO: scale attached objects
-}
-
-void Mesh::translate(const Point4D &t) {
-    _position = _position + t;
-
-    for(auto attached : _attachedObjects)
-        attached->translate(t);
 }
 
 Mesh &Mesh::operator=(const Mesh &mesh) {
@@ -81,48 +68,13 @@ Mesh &Mesh::operator=(const Mesh &mesh) {
 }
 
 void Mesh::rotateRelativePoint(const Point4D &s, const Point4D &r) {
-    _angle = _angle + r;
-
-    // Translate XYZ by vector r1
-    Point4D r1 = _position - s;
-    *this *= Matrix4x4::Translation(r1);
-
-    // In translated coordinate system we rotate body and position
-    Matrix4x4 rotationMatrix = Matrix4x4::Rotation(r);
-    Point4D r2 = rotationMatrix*r1;
-    *this *= rotationMatrix;
-
-    // After rotation we translate XYZ by vector -r2 and recalculate position
-    *this *= Matrix4x4::Translation(-r2);
-    _position = s + r2;
-
-    if(_attachedObjects.empty())
-        return;
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(s, r);
+    Object::rotateRelativePoint(s, r);
+    *this *= Matrix4x4::Rotation(r);
 }
 
 void Mesh::rotateRelativePoint(const Point4D &s, const Point4D &v, double r) {
-    // Translate XYZ by vector r1
-    Point4D r1 = _position - s;
-    *this *= Matrix4x4::Translation(r1);
-
-    // In translated coordinate system we rotate body and position
-    Matrix4x4 rotationMatrix = Matrix4x4::Rotation(v, r);
-    Point4D r2 = rotationMatrix*r1;
-    *this *= rotationMatrix;
-
-    // After rotation we translate XYZ by vector -r2 and recalculate position
-    *this *= Matrix4x4::Translation(-r2);
-    _position = s + r2;
-
-    for(auto attached : _attachedObjects)
-        attached->rotateRelativePoint(s, v, r);
-}
-
-
-void Mesh::translateToPoint(const Point4D &point) {
-    translate(point - _position);
+    Object::rotateRelativePoint(s, v, r);
+    *this *= Matrix4x4::Rotation(v, r);
 }
 
 void Mesh::setColor(sf::Color c) {
diff --git a/engine/Mesh.h b/engine/Mesh.h
index 4b1ab2f..e284cdb 100755
--- a/engine/Mesh.h
+++ b/engine/Mesh.h
@@ -11,7 +11,7 @@
 #include <SFML/Graphics.hpp>
 #include "Object.h"
 
-class Mesh : public Object, public Animatable {
+class Mesh : public Object {
 private:
     std::vector<Triangle> _tris;
     sf::Color _color = sf::Color(255, 245, 194);
@@ -29,12 +29,10 @@ public:
     Mesh& loadObj(const std::string& filename, const std::string &materials = "", const Point4D& scale = Point4D{1, 1, 1});
 
     [[nodiscard]] std::vector<Triangle>const &triangles() const { return _tris; }
-    [[nodiscard]] std::vector<Triangle>& triangles() override { return _tris; }
-    void setTriangles(const std::vector<Triangle>& t) override { _tris = t; }
+    [[nodiscard]] std::vector<Triangle>& triangles() { return _tris; }
+    void setTriangles(const std::vector<Triangle>& t) { _tris = t; }
 
     // Translate body
-    void translate(const Point4D& t) override;
-    void translateToPoint(const Point4D& point);
     // Rotate body around XYZ axes
     void rotate(const Point4D& r) override;
     // Rotate body around normalised vector 'v' by 'r' radians
@@ -43,15 +41,10 @@ public:
     void rotateRelativePoint(const Point4D& point4D, const Point4D& r) override;
     // Rotate body around normalised vector 'v' by 'r' radians relative val 'point4D'
     void rotateRelativePoint(const Point4D& point4D, const Point4D& v, double r) override;
-    void scale(const Point4D& s);
+    void scale(const Point4D& s) override;
 
-    void rotateToAngle(const Point4D& v) { rotate(v - _angle); }
-
-    [[nodiscard]] Point4D position() const override { return _position; }
-    [[nodiscard]] Point4D angle() const override { return _angle; }
-
-    [[nodiscard]] sf::Color color() const override { return _color; }
-    void setColor(sf::Color c) override;
+    [[nodiscard]] sf::Color color() const { return _color; }
+    void setColor(sf::Color c);
 
     Mesh static Obj(const std::string& filename);
     Mesh static LineTo(const Point4D& from, const Point4D& to, double line_width = 0.1, sf::Color color = {150, 150, 150, 255});
diff --git a/engine/Mouse.cpp b/engine/Mouse.cpp
index dbf1fb6..231102e 100644
--- a/engine/Mouse.cpp
+++ b/engine/Mouse.cpp
@@ -14,9 +14,9 @@ Point4D Mouse::getMouseDisplacement() const {
     sf::Vector2<int> mousePos = sf::Mouse::getPosition(*_window);
     sf::Vector2<int> center = sf::Vector2<int>(_window->getSize().x/2, _window->getSize().y/2);
 
-    sf::Vector2<int> disp = mousePos - center;
+    sf::Vector2<int> displacement = mousePos - center;
     //setMouseInCenter();
-    return Point4D(disp.x, disp.y, 0, 0);
+    return Point4D(displacement.x, displacement.y, 0, 0);
 }
 
 void Mouse::setMouseInCenter() const {
diff --git a/engine/Object.cpp b/engine/Object.cpp
new file mode 100755
index 0000000..ef56b3e
--- /dev/null
+++ b/engine/Object.cpp
@@ -0,0 +1,128 @@
+//
+// Created by Иван Ильин on 15.03.2021.
+//
+
+#include "Object.h"
+#include "utils/Matrix4x4.h"
+#include "utils/Log.h"
+
+void Object::translate(const Point4D &dv) {
+    _position = _position + dv;
+
+    for(auto attached : _attachedObjects)
+        attached.second->translate(dv);
+}
+
+void Object::scale(const Point4D &s) {
+    for(auto attached : _attachedObjects)
+        attached.second->scale(s);
+}
+
+void Object::rotate(const Point4D &r) {
+    _angle = _angle + r;
+
+    Matrix4x4 rotationMatrix = Matrix4x4::RotationZ(r.z())*Matrix4x4::RotationY(r.y())*Matrix4x4::RotationX(r.z());
+
+    _left = rotationMatrix * _left;
+    _up = rotationMatrix * _up;
+    _lookAt = rotationMatrix * _lookAt;
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(position(), r);
+}
+
+void Object::rotate(const Point4D &v, double rv) {
+    Matrix4x4 rotationMatrix = Matrix4x4::Rotation(v, rv);
+    _left = rotationMatrix * _left;
+    _up = rotationMatrix * _up;
+    _lookAt = rotationMatrix * _lookAt;
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(position(), v, rv);
+}
+
+void Object::rotateRelativePoint(const Point4D &s, const Point4D &r) {
+    _angle = _angle + r;
+
+    // Translate XYZ by vector r1
+    Point4D r1 = _position - s;
+
+    // In translated coordinate system we rotate body and position
+    Matrix4x4 rotationMatrix = Matrix4x4::Rotation(r);
+    Point4D r2 = rotationMatrix*r1;
+
+    _left = rotationMatrix * _left;
+    _up = rotationMatrix * _up;
+    _lookAt = rotationMatrix * _lookAt;
+
+    // After rotation we translate XYZ by vector -r2 and recalculate position
+    _position = s + r2;
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(s, r);
+}
+
+void Object::rotateRelativePoint(const Point4D &s, const Point4D &v, double r) {
+    // Translate XYZ by vector r1
+    Point4D r1 = _position - s;
+    // In translated coordinate system we rotate body and position
+    Matrix4x4 rotationMatrix = Matrix4x4::Rotation(v, r);
+    Point4D r2 = rotationMatrix*r1;
+
+    _left = rotationMatrix * _left;
+    _up = rotationMatrix * _up;
+    _lookAt = rotationMatrix * _lookAt;
+
+    // After rotation we translate XYZ by vector -r2 and recalculate position
+    _position = s + r2;
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(s, v, r);
+}
+
+void Object::rotateLeft(double rl) {
+    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x() + rl, _angleLeftUpLookAt.y(), _angleLeftUpLookAt.z()};
+
+    rotate(_left, rl);
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(position(), _left, rl);
+}
+
+void Object::rotateUp(double ru) {
+    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x(), _angleLeftUpLookAt.y() + ru, _angleLeftUpLookAt.z()};
+    rotate(_up, ru);
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(position(), _up, ru);
+}
+
+void Object::rotateLookAt(double rlAt) {
+    _angleLeftUpLookAt = Point4D{_angleLeftUpLookAt.x(), _angleLeftUpLookAt.y(), _angleLeftUpLookAt.z() + rlAt};
+    rotate(_lookAt, rlAt);
+
+    for(auto attached : _attachedObjects)
+        attached.second->rotateRelativePoint(position(), _lookAt, rlAt);
+}
+
+void Object::translateToPoint(const Point4D &point) {
+    translate(point - _position);
+}
+
+void Object::rotateToAngle(const Point4D &v) {
+    rotate(v - _angle);
+}
+
+std::shared_ptr<Object> Object::attached(const std::string &name) {
+    if(_attachedObjects.count(name) == 0)
+        Log::log("Object::attached: object '" + name + "' does not exist.");
+    return _attachedObjects.find(name)->second;
+}
+
+void Object::attach(std::shared_ptr<Object> object, const std::string &name) {
+    _attachedObjects.emplace(name, object);
+}
+
+void Object::unattach(const std::string &name) {
+    _attachedObjects.erase(name);
+}
diff --git a/engine/Object.h b/engine/Object.h
index 04350da..49c8aa7 100755
--- a/engine/Object.h
+++ b/engine/Object.h
@@ -5,32 +5,49 @@
 #ifndef ENGINE_OBJECT_H
 #define ENGINE_OBJECT_H
 
-#include <vector>
+#include <map>
 #include "utils/Point4D.h"
 #include <memory>
+#include "animation/Animatable.h"
 
-class Object {
+class Object : public Animatable {
 protected:
-    std::vector<std::shared_ptr<Object>> _attachedObjects;
+    Point4D _left =   Point4D{1, 0, 0, 0}; // internal X
+    Point4D _up =     Point4D{0, 1, 0, 0}; // internal Y
+    Point4D _lookAt = Point4D{0, 0, 1, 0}; // internal Z
+
+    std::map<std::string, std::shared_ptr<Object>> _attachedObjects;
 
     Point4D _position;
     Point4D _angle;
+    Point4D _angleLeftUpLookAt;
 public:
     Object() = default;
 
-    virtual void translate(const Point4D& dv) {}
-    virtual void rotate(const Point4D& r) {}
-    virtual void rotateRelativePoint(const Point4D& point4D, const Point4D& r) {}
-    virtual void rotate(const Point4D& v, double rv) {}
-    virtual void rotateRelativePoint(const Point4D& s, const Point4D& v, double r) {}
+    virtual void translate(const Point4D& dv);
+    virtual void translateToPoint(const Point4D& point);
+    virtual void scale(const Point4D& s);
+    virtual void rotate(const Point4D& r);
+    virtual void rotate(const Point4D& v, double rv);
+    virtual void rotateToAngle(const Point4D& v);
+    virtual void rotateRelativePoint(const Point4D& s, const Point4D& r);
+    virtual void rotateRelativePoint(const Point4D& s, const Point4D& v, double r);
 
     [[nodiscard]] Point4D position() const { return _position; }
     [[nodiscard]] Point4D angle() const { return _angle; }
+    [[nodiscard]] Point4D angleLeftUpLookAt() const { return _angleLeftUpLookAt; }
 
-    void attach(std::shared_ptr<Object> object) {
-        _attachedObjects.push_back(object);
-    }
+    [[nodiscard]] Point4D left() const { return _left; }
+    [[nodiscard]] Point4D up() const { return _up; }
+    [[nodiscard]] Point4D lookAt() const { return _lookAt; }
+
+    void rotateLeft(double rl);
+    void rotateUp(double ru);
+    void rotateLookAt(double rlAt);
+
+    void attach(std::shared_ptr<Object> object, const std::string& name);
+    void unattach(const std::string& name);
+    std::shared_ptr<Object> attached(const std::string& name);
 };
 
-
 #endif //MINECRAFT_3DZAVR_OBJECT_H
diff --git a/engine/World.cpp b/engine/World.cpp
index f5a5f33..3a2eef0 100755
--- a/engine/World.cpp
+++ b/engine/World.cpp
@@ -95,7 +95,7 @@ void World::checkCollision(const std::string& body) {
 
 void World::update() {
     for (auto &m : _objects) {
-        m.second->a_update();
+        m.second->update_animations();
         m.second->updatePhysicsState();
         checkCollision(m.first);
     }
diff --git a/engine/animation/AColor.h b/engine/animation/AColor.h
index 6465840..53353ca 100755
--- a/engine/animation/AColor.h
+++ b/engine/animation/AColor.h
@@ -7,14 +7,18 @@
 
 #include "Animatable.h"
 #include "Animation.h"
+#include "Mesh.h"
 
 class AColor : public Animation {
 private:
+    std::shared_ptr<Mesh> _mesh;
+
     sf::Color newColor;
     sf::Color startColor;
 
 public:
-    AColor(const sf::Color &color, double duration, LoopOut looped, InterpolationType interpolationType) {
+    AColor(std::shared_ptr<Mesh> mesh, const sf::Color &color, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::linear) {
+        _mesh = mesh;
         _duration = duration;
         _looped = looped;
         _intType = interpolationType;
@@ -23,15 +27,15 @@ public:
         newColor = color;
     }
 
-    bool update(Animatable& obj) override {
+    bool update() override {
         if(!_started)
-            startColor = obj.color();
+            startColor = _mesh->color();
 
         Point4D start(startColor.r, startColor.g, startColor.b, startColor.a);
         Point4D end(newColor.r, newColor.g, newColor.b, newColor.a);
         Point4D mid = start + (end - start)*_p;
 
-        obj.setColor(sf::Color(static_cast<sf::Uint8>(mid.x()), static_cast<sf::Uint8>(mid.y()), static_cast<sf::Uint8>(mid.z()), static_cast<sf::Uint8>(mid.w())));
+        _mesh->setColor(sf::Color(static_cast<sf::Uint8>(mid.x()), static_cast<sf::Uint8>(mid.y()), static_cast<sf::Uint8>(mid.z()), static_cast<sf::Uint8>(mid.w())));
 
         return updateState();
     }
diff --git a/engine/animation/AFunction.h b/engine/animation/AFunction.h
index e81ffd3..f901450 100755
--- a/engine/animation/AFunction.h
+++ b/engine/animation/AFunction.h
@@ -16,7 +16,7 @@ private:
     std::function<void()> _callBack;
 
 public:
-    AFunction(std::function<void()> function, int calls, double duration, LoopOut looped, InterpolationType interpolationType) {
+    explicit AFunction(std::function<void()> function, int calls = 1, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::linear) {
         _callBack = std::move(function);
         _allCalls = calls;
         _duration = duration;
@@ -24,7 +24,7 @@ public:
         _intType = interpolationType;
     }
 
-    bool update(Animatable& obj) override {
+    bool update() override {
         if(_allCalls != 0 && _p >= (double)(_calls+1) / (_allCalls+1)) {
             _calls++;
             _callBack();
diff --git a/engine/animation/ARotate.h b/engine/animation/ARotate.h
index d346330..d5aacff 100755
--- a/engine/animation/ARotate.h
+++ b/engine/animation/ARotate.h
@@ -7,12 +7,16 @@
 
 #include "Animatable.h"
 #include "Animation.h"
+#include "Object.h"
 
 class ARotate : public Animation {
 private:
+    std::shared_ptr<Object> _object;
+
     Point4D value;
 public:
-    ARotate(const Point4D& r, double duration, LoopOut looped, InterpolationType interpolationType) {
+    ARotate(std::shared_ptr<Object> object, const Point4D& r, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::bezier) {
+        _object = object;
         _duration = duration;
         _looped = looped;
         _intType = interpolationType;
@@ -20,8 +24,8 @@ public:
         value = r;
     }
 
-    bool update(Animatable& obj) override {
-        obj.rotate(value * _dp);
+    bool update() override {
+        _object->rotate(value * _dp);
         return updateState();
     }
 };
diff --git a/engine/animation/AScale.h b/engine/animation/AScale.h
index b57ba31..37f11ec 100755
--- a/engine/animation/AScale.h
+++ b/engine/animation/AScale.h
@@ -7,14 +7,17 @@
 
 #include "Animatable.h"
 #include "Animation.h"
+#include "Mesh.h"
 
 class AScale : public Animation {
 private:
-    Point4D value;
+    std::shared_ptr<Mesh> _mesh;
 
-    std::vector<Triangle> triangles;
+    Point4D value;
+    std::vector<Triangle> triangles{};
 public:
-    AScale(const Point4D &s, double duration, LoopOut looped, InterpolationType interpolationType) {
+    AScale(std::shared_ptr<Mesh> mesh, const Point4D &s, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::bezier) {
+        _mesh = mesh;
         _duration = duration;
         _looped = looped;
         _intType = interpolationType;
@@ -23,15 +26,15 @@ public:
         value = s;
     }
 
-    bool update(Animatable& obj) override {
+    bool update() override {
         if(!_started)
-            triangles = obj.triangles();
+            triangles = _mesh->triangles();
 
         std::vector<Triangle> newTriangles;
         for(auto &t : triangles) {
             newTriangles.emplace_back(t * Matrix4x4::Scale(Point4D{1, 1, 1} + (value - Point4D{1, 1, 1}) * _p));
         }
-        obj.setTriangles(newTriangles);
+        _mesh->setTriangles(newTriangles);
         return updateState();
     }
 };
diff --git a/engine/animation/ATranslate.h b/engine/animation/ATranslate.h
index 4b469c3..92af632 100755
--- a/engine/animation/ATranslate.h
+++ b/engine/animation/ATranslate.h
@@ -7,12 +7,16 @@
 
 #include "Animatable.h"
 #include "Animation.h"
+#include "Object.h"
 
 class ATranslate : public Animation {
 private:
+    std::shared_ptr<Object> _object;
+
     Point4D value;
 public:
-    ATranslate(const Point4D& t, double duration, LoopOut looped, InterpolationType interpolationType) {
+    ATranslate(std::shared_ptr<Object> object, const Point4D& t, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::bezier) {
+        _object = object;
         _duration = duration;
         _looped = looped;
         _intType = interpolationType;
@@ -20,14 +24,10 @@ public:
         value = t;
     }
 
-    bool update(Animatable& obj) override {
-        obj.translate(value * _dp);
+    bool update() override {
+        _object->translate(value * _dp);
         return updateState();
     }
-
-    [[nodiscard]] int type() const override {
-        return 2;
-    }
 };
 
 #endif //INC_3DZAVR_ATRANSLATE_H
diff --git a/engine/animation/ATranslateToPoint.h b/engine/animation/ATranslateToPoint.h
index 223dafc..85ba5bb 100755
--- a/engine/animation/ATranslateToPoint.h
+++ b/engine/animation/ATranslateToPoint.h
@@ -7,13 +7,17 @@
 
 #include "Animatable.h"
 #include "Animation.h"
+#include "Object.h"
 
 class ATranslateToPoint : public Animation {
 private:
+    std::shared_ptr<Object> _object;
+
     Point4D point;
     Point4D value;
 public:
-    ATranslateToPoint(const Point4D& p, double duration, LoopOut looped, InterpolationType interpolationType) {
+    ATranslateToPoint(std::shared_ptr<Object> object, const Point4D& p, double duration = 1, LoopOut looped = LoopOut::None, InterpolationType interpolationType = InterpolationType::bezier) {
+        _object = object;
         _duration = duration;
         _looped = looped;
         _intType = interpolationType;
@@ -21,11 +25,11 @@ public:
         point = p;
     }
 
-    bool update(Animatable& obj) override {
+    bool update() override {
         if(!_started) {
-            value = point - obj.position();
+            value = point - _object->position();
         }
-        obj.translate(value * _dp);
+        _object->translate(value * _dp);
 
         return updateState();
     }
diff --git a/engine/animation/AWait.h b/engine/animation/AWait.h
index eab8b17..6366477 100755
--- a/engine/animation/AWait.h
+++ b/engine/animation/AWait.h
@@ -9,22 +9,16 @@
 #include "Animation.h"
 
 class AWait : public Animation {
-private:
-    Point4D value;
 public:
-    explicit AWait(double duration) {
+    explicit AWait(double duration = 1) {
         _duration = duration;
         _intType = linear;
         _waitFor = true;
     }
 
-    bool update(Animatable& obj) override {
+    bool update() override {
         return updateState();
     }
-
-    [[nodiscard]] int type() const override {
-        return 1;
-    }
 };
 
 #endif //INC_3DZAVR_AWAIT_H
diff --git a/engine/animation/Animatable.cpp b/engine/animation/Animatable.cpp
index 65fa8f1..98a3a5d 100755
--- a/engine/animation/Animatable.cpp
+++ b/engine/animation/Animatable.cpp
@@ -14,6 +14,7 @@
 #include "AFunction.h"
 #include "AColor.h"
 
+/*
 void Animatable::a_translate(const std::string& listName,
                              const Point4D &t,
                              double duration,
@@ -30,7 +31,7 @@ void Animatable::a_translateToPoint(const std::string& listName,
     animations[listName].emplace_back(new ATranslateToPoint(point, duration, looped, interpolationType));
 }
 
-void Animatable::a_rotate(const std::string& listName,
+void Animatable::a_rotate(c
                           const Point4D &r,
                           double duration,
                           Animation::LoopOut looped,
@@ -63,8 +64,9 @@ void Animatable::a_function(const std::string &listName,
                             Animation::InterpolationType interpolationType) {
     animations[listName].emplace_back(new AFunction(std::move(function), calls, duration, looped, interpolationType));
 }
+*/
 
-void Animatable::a_update() {
+void Animatable::update_animations() {
 
     for (auto& [listName, animationList] : animations) {
 
@@ -74,18 +76,21 @@ void Animatable::a_update() {
         // If it the front animation is 'a_wait()' we should wait until waiting time is over
 
         if (it.operator*()->waitFor()) {
-            if (!it.operator*()->update(*this))
+            if (!it.operator*()->update())
                 animationList.erase(it);
             continue;
         }
 
-
         // Otherwise we iterate over all animation until we meet animations.end() or wait animation
         while (!animationList.empty() && (it != animationList.end()) && (!it.operator*()->waitFor())) {
-            if (!it.operator*()->update(*this))
+            if (!it.operator*()->update())
                 animationList.erase(it++);
             else
                 it++;
         }
     }
 }
+
+void Animatable::animate(const std::string &listName, Animation* anim) {
+    animations[listName].emplace_back(anim);
+}
diff --git a/engine/animation/Animatable.h b/engine/animation/Animatable.h
index 87574f8..1a0bebd 100755
--- a/engine/animation/Animatable.h
+++ b/engine/animation/Animatable.h
@@ -8,7 +8,6 @@
 #include <list>
 #include "../Triangle.h"
 
-//class Animation;
 #include "Animation.h"
 #include <iostream>
 #include <functional>
@@ -21,50 +20,13 @@ protected:
 public:
     Animatable() = default;
     virtual ~Animatable() = default;
-    // All methods about animation begins with 'a_'
-    void a_translate(const std::string& listName,
-                     const Point4D& t,
-                     double duration = 1,
-                     Animation::LoopOut looped = Animation::None,
-                     Animation::InterpolationType interpolationType = Animation::bezier);
-    void a_translateToPoint(const std::string& listName,
-                            const Point4D& point,
-                            double duration = 1,
-                            Animation::LoopOut looped = Animation::None,
-                            Animation::InterpolationType interpolationType = Animation::bezier);
 
-    void a_rotate(const std::string& listName,
-                  const Point4D& r,
-                  double duration = 1,
-                  Animation::LoopOut looped = Animation::None,
-                  Animation::InterpolationType interpolationType = Animation::bezier);
+    void animate(const std::string& listName, Animation* anim);
 
-    void a_scale(const std::string& listName,
-                 const Point4D& s,
-                 double duration = 1,
-                 Animation::LoopOut looped = Animation::None,
-                 Animation::InterpolationType interpolationType = Animation::bezier);
+    void update_animations();
 
-    void a_wait(const std::string& listName, double duration = 1);
-
-    void a_function(const std::string& listName,
-                    std::function<void()> function,
-                    int calls = 1,
-                    double duration = 1,
-                    Animation::LoopOut looped = Animation::None,
-                    Animation::InterpolationType interpolationType = Animation::bezier);
-
-    void a_color(const std::string& listName,
-                 const sf::Color& color,
-                 double duration = 1,
-                 Animation::LoopOut looped = Animation::None,
-                 Animation::InterpolationType interpolationType = Animation::bezier);
-
-
-    void a_update();
-
-    void a_stopAllAnimations() { animations.clear(); }
-    void a_stopAnimationList(const std::string& name) { animations[name].clear(); }
+    void stopAllAnimations() { animations.clear(); }
+    void stopAnimationList(const std::string& name) { animations[name].clear(); }
 
     [[nodiscard]] bool isInAnim() const {
         for(auto& animList : animations)
@@ -74,19 +36,6 @@ public:
 
     }
     [[nodiscard]] bool isInAnimList(const std::string& name) { return !animations[name].empty(); }
-
-    // methods to override:
-    // If you want to create new animation you can either add new virtual function here
-    // or override one of the following function:
-    [[nodiscard]] virtual Point4D position() const { return Point4D{}; }
-    [[nodiscard]] virtual Point4D angle() const { return Point4D{}; }
-    virtual void translate(const Point4D& dv) {}
-    virtual void rotate(const Point4D& r) {}
-    [[nodiscard]] virtual std::vector<Triangle>& triangles() { return *(std::vector<Triangle>*)(new std::vector<Triangle>()); }
-    virtual void setTriangles(const std::vector<Triangle>& tris) {}
-
-    [[nodiscard]] virtual sf::Color color() const {return sf::Color(); }
-    virtual void setColor(sf::Color c) { }
 };
 
 #endif //INC_3DZAVR_ANIMATABLE_H
diff --git a/engine/animation/Animation.h b/engine/animation/Animation.h
index d22f0dc..ac92052 100755
--- a/engine/animation/Animation.h
+++ b/engine/animation/Animation.h
@@ -54,9 +54,7 @@ public:
 
 
     // You should override this method for your particular animation
-    virtual bool update(Animatable& obj) = 0;
-
-    [[nodiscard]] virtual int type() const{return 0;}
+    virtual bool update() = 0;
 };
 
 #endif //INC_3DZAVR_ANIMATION_H
diff --git a/main.cpp b/main.cpp
index aabbc88..d24629f 100755
--- a/main.cpp
+++ b/main.cpp
@@ -2,193 +2,10 @@
 // Created by Иван Ильин on 06.02.2021.
 //
 
-#include "Engine.h"
-#include <iostream>
-#include "Player.h"
-#include "ResourceManager.h"
-#include "gui/Window.h"
-#include "PlayerController.h"
-
-#include "Client.h"
-#include "Server.h"
-#include <fstream>
+#include "Shooter.h"
 
 using namespace std;
 
-// Read server/client settings and start both.
-// If client doesn't connect to the localhost - server doesn't start.
-void InitNetwork(shared_ptr<Server> server, shared_ptr<Client> client)
-{
-    std::string clientIp;
-    sf::Uint16 clientPort;
-    sf::Uint16 serverPort;
-    std::ifstream connectfile("connect.txt", std::ifstream::in);
-
-    // If failed to read client settings
-    if (!connectfile.is_open() || !(connectfile >> clientIp >> clientPort) || sf::IpAddress(clientIp) == sf::IpAddress::None)
-    {
-        connectfile.close();
-        // Create file and write default settings
-        clientIp = "127.0.0.1";
-        clientPort = 54000;
-        std::ofstream temp("connect.txt", std::ofstream::out);
-        temp << clientIp << std::endl << clientPort;
-        temp.close();
-    }
-    connectfile.close();
-
-    // If failed to read server settings
-    connectfile.open("server.txt", std::ifstream::in);
-    if (!connectfile.is_open() || !(connectfile >> serverPort))
-    {
-        connectfile.close();
-        // Create file and write default settings
-        serverPort = 54000;
-        std::ofstream temp("server.txt", std::ofstream::out);
-        temp << serverPort;
-        temp.close();
-    }
-    connectfile.close();
-
-    if (clientIp == sf::IpAddress::LocalHost) {
-        server->start(serverPort);
-        if(server->isWorking())
-            server->generateBonuses();
-    }
-
-    client->connect(clientIp, clientPort);
-}
-
-class Shooter : public Engine {
-private:
-    shared_ptr<Player> player;
-    shared_ptr<PlayerController> playerController;
-
-    sf::Sound backgroundNoise;
-
-    Window mainMenu;
-
-    shared_ptr<Server> server;
-    shared_ptr<Client> client;
-
-    bool inGame = false;
-
-public:
-    Shooter() : mainMenu(screen, mouse) {};
-
-    void start() override;
-    void update() override;
-
-    void gui() override;
-
-    void play();
-};
-
-void Shooter::start() {
-    // This code executed once in the beginning:
-    setDebugText(false);
-
-    mouse->setMouseCursorVisible(true);
-
-    world->loadMap("../maps/map1.obj", "map", Point4D{5, 5, 5});
-
-    player = std::make_shared<Player>();
-    playerController = std::make_shared<PlayerController>(player, world, keyboard, mouse);
-
-    client = std::make_shared<Client>(player, world);
-    server = std::make_shared<Server>();
-
-    player->setAddTraceCallBack([this](const Point4D& from, const Point4D& to){ client->addTrace(from, to); });
-    player->attachCamera(camera, screen);
-    player->attachWorld(world);
-
-    setUpdateWorld(false);
-
-    world->addBody(player, player->name());
-
-    player->setDamagePlayerCallBack([this] (sf::Uint16 targetId, double damage) { client->damagePlayer(targetId, damage); });
-    player->setTakeBonusCallBack([this] (const string& bonusName) { client->takeBonus(bonusName); });
-
-
-    // windows init:
-    mainMenu.title("Main menu");
-    mainMenu.setBackgroundTexture("../textures/back.png", 1.1, 1.1, screen->width(), screen->height());
-
-    mainMenu.addButton(screen->width()/2, 200, 200, 20, [this] () { this->play(); }, "Play", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
-    mainMenu.addButton(screen->width()/2, 350, 200, 20, [this] () { this->player->translateToPoint(Point4D{0, 0, 0}); this->player->setVelocity({}); this->play(); }, "Respawn", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
-
-    mainMenu.addButton(screen->width()/2, 500, 200, 20, [this] () { client->disconnect(); server->stop(); this->exit();}, "Exit", 5, 5, "../textures/gui.png", {0, 66}, {0, 86}, {0, 46}, "../engine/fonts/Roboto-Medium.ttf", {255, 255, 255}, "../sound/click.ogg");
-
-    // connecting to the server
-    InitNetwork(server, client);
-    // Waiting for connect and updating server if it's same window
-    while (client->isWorking() && !client->connected())
-    {
-        client->update();
-        server->update();
-        Time::update();
-    }
-    // If connect fail - return to menu
-    if (!client->isWorking())
-    {
-        inGame = false;
-        server->stop();
-    }
-}
-
-void Shooter::update() {
-    // This code executed every time step:
-
-    server->update();
-    client->update();
-
-    // Check all input after this condition please
-    if (!screen->hasFocus())
-        return;
-
-    if(keyboard->isKeyTapped(sf::Keyboard::Escape)) {
-        inGame = !inGame;
-        mouse->setMouseCursorVisible(!inGame);
-    }
-
-    if(inGame) {
-        screen->setTitle("Shooter");
-        player->update();
-        playerController->update();
-        mouse->setMouseInCenter();
-    } else {
-        mainMenu.update();
-    }
-
-    setUpdateWorld(inGame);
-
-    // background sounds and music control
-    if(backgroundNoise.getStatus() != sf::Sound::Status::Playing) {
-        backgroundNoise.setBuffer(*ResourceManager::loadSoundBuffer("../sound/backNoise.ogg"));
-        backgroundNoise.play();
-    }
-}
-
-void Shooter::gui() {
-
-    sf::Sprite sprite;
-    sprite.setTexture(*ResourceManager::loadTexture("../textures/gui.png"));
-    sprite.setTextureRect(sf::IntRect(243, 3, 9, 9));
-    sprite.scale(3, 3);
-    sprite.setPosition(screen->width() / 2.0 - 27.0/2.0, screen->height() / 2 - 27.0/2.0);
-    sprite.setColor(sf::Color(0,0,0, 200));
-    screen->drawSprite(sprite);
-
-    // health player stats
-    player->drawStats();
-}
-
-void Shooter::play() {
-    inGame = true;
-
-    mouse->setMouseCursorVisible(!inGame);
-}
-
 int main() {
     Shooter game;
 
diff --git a/weapon/Shotgun.cpp b/weapon/Shotgun.cpp
index 25617a1..af02c4e 100755
--- a/weapon/Shotgun.cpp
+++ b/weapon/Shotgun.cpp
@@ -4,6 +4,8 @@
 
 #include <ResourceManager.h>
 #include "Shotgun.h"
+#include "animation/AColor.h"
+#include "animation/AFunction.h"
 
 using namespace std;
 
@@ -23,7 +25,7 @@ Shotgun::Shotgun(int ammo, const std::string& weaponName) : Weapon(weaponName, "
 }
 
 std::map<std::string, double>
-Shotgun::processFire(std::shared_ptr<World> world, std::shared_ptr<Camera> camera) {
+Shotgun::processFire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& pos, const Point4D& direction) {
     std::map<std::string, double> damagedPlayers;
 
     for(int i = 0; i < 15; i++) {
@@ -31,24 +33,14 @@ Shotgun::processFire(std::shared_ptr<World> world, std::shared_ptr<Camera> camer
         Point4D randV(10*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX), 10*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX), 10*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX));
 
         // damage player
-        auto rayCast = world->rayCast(camera->position(), camera->position() + camera->lookAt() * 1000 + randV);
+        auto rayCast = rayCastFunction(pos, pos + direction * 1000 + randV);
         if (rayCast.second.find("Player") != std::string::npos) {
-            damagedPlayers[rayCast.second] += _damage / (1.0 + (camera->position() - rayCast.first).abs());
+            damagedPlayers[rayCast.second] += _damage / (1.0 + (pos - rayCast.first).abs());
         }
 
-        // add trace line
-        Point4D to = rayCast.first.w() == -1 ? camera->position() + camera->lookAt() * 1000 + randV: rayCast.first;
-        string traceName = _name + "_trace_nr_" + std::to_string(fireTraces++);
-        Point4D from = _objects[_name + "_" + to_string(9)]->position() +
-                       _objects[_name + "_" + to_string(9)]->triangles()[0][0];
-        world->addBody(make_shared<RigidBody>(Mesh::LineTo(from, to, 0.05)), traceName);
-        world->body(traceName)->setCollider(false);
-
-        // remove trace line after some time
-        world->body(traceName)->a_color("color_trace", {255, 255, 255, 0}, 1, Animation::None, Animation::linear);
-        world->body("map_0")->a_function(traceName + "delete", [world, traceName]() { deleteTrace(world, traceName); },
-                                         1, 2);
-        addTraceCallBack(from, to);
+        Point4D to = rayCast.first.w() == -1 ? pos + direction * 1000 + randV: rayCast.first;
+        Point4D from = position() + triangles().back()[0];
+        _addTraceCallBack(from, to);
     }
 
 
diff --git a/weapon/Shotgun.h b/weapon/Shotgun.h
index f3aaba9..ffeda22 100755
--- a/weapon/Shotgun.h
+++ b/weapon/Shotgun.h
@@ -10,7 +10,7 @@
 class Shotgun : public Weapon {
 public:
     explicit Shotgun(int ammo = 15, const std::string& weaponName = "shotgun");
-    std::map<std::string, double> processFire(std::shared_ptr<World> world, std::shared_ptr<Camera> camera) override;
+    std::map<std::string, double> processFire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& position, const Point4D& direction) override;
 };
 
 
diff --git a/weapon/Weapon.cpp b/weapon/Weapon.cpp
index 478724a..da6887a 100755
--- a/weapon/Weapon.cpp
+++ b/weapon/Weapon.cpp
@@ -3,15 +3,21 @@
 //
 
 #include <sstream>
+#include <utility>
 #include "Weapon.h"
 #include "ResourceManager.h"
 #include "utils/Log.h"
+#include "animation/AColor.h"
+#include "animation/AFunction.h"
 
 using namespace std;
 
-Weapon::Weapon(const std::string& weaponName, const std::string& objFileName, const std::string& matFileName, const Point4D& scale, const Point4D& translate, const Point4D& rotate) {
+Weapon::Weapon(const std::string& weaponName, const std::string& objFileName, const std::string& matFileName, const Point4D& scale, const Point4D& t, const Point4D& r) {
     _name = weaponName;
+
+    /*
     auto objs = Mesh::LoadObjects(objFileName, matFileName, scale);
+
     for(int i = 0; i < objs.size(); i++) {
         string meshName = _name + "_" + to_string(i);
 
@@ -25,10 +31,16 @@ Weapon::Weapon(const std::string& weaponName, const std::string& objFileName, co
 
         _objects.insert({meshName, std::make_shared<RigidBody>(obj)});
     }
+     */
+    loadObj(objFileName, matFileName, scale);
+    setCollider(false);
+    rotate(r);
+    translate(t);
+
     noAmmoSound.setBuffer(*ResourceManager::loadSoundBuffer("../sound/weapons/no_ammo.ogg"));
 }
 
-std::map<std::string, double> Weapon::fire(std::shared_ptr<World> world, std::shared_ptr<Camera> camera) {
+std::map<std::string, double> Weapon::fire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& position, const Point4D& direction) {
     if(_clipAmmo == 0) {
         reload();
         if(_clipAmmo == 0)
@@ -44,7 +56,7 @@ std::map<std::string, double> Weapon::fire(std::shared_ptr<World> world, std::sh
     fireSound.play();
     Log::log("Weapon::fire (" + std::to_string(_stockAmmo) + " : " + std::to_string(_clipAmmo) + ")");
 
-    return processFire(world, camera);
+    return processFire(std::move(rayCastFunction), position, direction);
 }
 
 void Weapon::reload() {
@@ -63,68 +75,22 @@ void Weapon::reload() {
     _lastReloadTime = Time::time();
 }
 
-void Weapon::addToWorld(shared_ptr<World> world) {
-    for(auto& obj : _objects) {
-        world->addBody(obj.second, obj.first);
-    }
-}
-
-void Weapon::removeFromWorld(shared_ptr<World> world) {
-    for(auto& obj : _objects) {
-        world->removeBodyInstantly(obj.first);
-    }
-}
-
-
-void Weapon::attachToPlayer(Mesh &player) {
-    for(auto& obj : _objects) {
-        player.attach(obj.second);
-    }
-}
-
-void Weapon::rotate(const Point4D& point4D, double val) {
-    for(auto& mesh : _objects)
-        mesh.second->rotate(point4D, val);
-}
-
-void Weapon::translate(const Point4D &point4D) {
-    for(auto& mesh : _objects)
-        mesh.second->translate(point4D);
-}
-
-void Weapon::deleteTrace(shared_ptr<World> world, const std::string& traceName) {
-    world->removeBody(traceName);
-}
-
-void Weapon::rotateRelativePoint(const Point4D &point4D, const Point4D &v, double val) {
-    for(auto& mesh : _objects)
-        mesh.second->rotateRelativePoint(point4D, v, val);
-}
-
-std::map<std::string, double> Weapon::processFire(shared_ptr<World> world, shared_ptr<Camera> camera) {
+std::map<std::string, double> Weapon::processFire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& pos, const Point4D& direction) {
     std::map<std::string, double> damagedPlayers;
 
     //generate random vector
     Point4D randV(10.0*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX), 10.0*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX), 10.0*_spreading*(1.0 - 2.0*(double)rand()/RAND_MAX));
 
     // damage player
-    auto rayCast = world->rayCast(camera->position(), camera->position() + camera->lookAt() * 1000 + randV);
+    auto rayCast = rayCastFunction(pos, pos + direction * 1000 + randV);
     if(rayCast.second.find("Player") != std::string::npos) {
-        damagedPlayers[rayCast.second] += _damage/(1.0 + (camera->position() - rayCast.first).abs());
+        damagedPlayers[rayCast.second] += _damage/(1.0 + (pos - rayCast.first).abs());
     }
 
     // add trace line
-    Point4D to = rayCast.first.w() == -1 ? camera->position() + camera->lookAt() * 1000 + randV: rayCast.first;
-    string traceName = _name + "_trace_nr_" + std::to_string(fireTraces++);
-    Point4D from = _objects[_name + "_" + to_string(_objects.size()-1)]->position() + _objects[_name + "_" + to_string(_objects.size()-1)]->triangles()[0][0];
-    world->addBody(make_shared<RigidBody>(Mesh::LineTo(from, to, 0.05)), traceName);
-    world->body(traceName)->setCollider(false);
-
-    // remove trace line after some time
-    world->body(traceName)->a_color("color_trace", {255, 255, 255, 0}, 1, Animation::None, Animation::linear);
-    world->body("Player_im")->a_function(traceName + "delete", [world, traceName](){deleteTrace(world, traceName); }, 1, 2);
-
-    addTraceCallBack(from, to);
+    Point4D to = rayCast.first.w() == -1 ? pos + direction * 1000 + randV: rayCast.first;
+    Point4D from = position() + triangles().back()[0];
+    _addTraceCallBack(from, to);
 
     return damagedPlayers;
 }
diff --git a/weapon/Weapon.h b/weapon/Weapon.h
index 0e33506..e4efd2b 100755
--- a/weapon/Weapon.h
+++ b/weapon/Weapon.h
@@ -13,7 +13,7 @@
 #include "Mesh.h"
 #include "utils/Time.h"
 
-class Weapon {
+class Weapon : public RigidBody {
 protected:
     int _initialPack = 100; // how much ammo do you have when you find the weapon
 
@@ -28,7 +28,6 @@ protected:
     double _spreading = 2.0;
 
     std::string _name = "Weapon_name";
-    std::map<std::string, std::shared_ptr<RigidBody>> _objects;
 
     double _lastFireTime = -INFINITY;
     double _lastReloadTime = -INFINITY;
@@ -37,40 +36,28 @@ protected:
     sf::Sound reloadSound;
     sf::Sound noAmmoSound;
 
-    static void deleteTrace(std::shared_ptr<World> world, const std::string& traceName);
-
     int fireTraces = 0;
 
-    std::function<void(const Point4D&, const Point4D&)> addTraceCallBack;
+    std::function<void(const Point4D&, const Point4D&)> _addTraceCallBack;
+
+    virtual std::map<std::string, double> processFire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& position, const Point4D& direction);
 
 public:
     Weapon(const std::string& weaponName, const std::string& objFileName, const std::string& matFileName, const Point4D& scale, const Point4D& translate, const Point4D& rotate);
 
-    std::map<std::string, double> fire(std::shared_ptr<World> world, std::shared_ptr<Camera> camera);
+    std::map<std::string, double> fire(std::function<std::pair<Point4D, std::string>(const Point4D&, const Point4D&)> rayCastFunction, const Point4D& position, const Point4D& direction);
     void reload();
 
-    void addToWorld(std::shared_ptr<World> world);
-    void removeFromWorld(std::shared_ptr<World> world);
-
-    void attachToPlayer(Mesh& player);
-
     [[nodiscard]] std::pair<double, double> balance() const{ return std::make_pair(_clipAmmo, _stockAmmo); }
 
-    void rotateRelativePoint(const Point4D& point4D, const Point4D& v, double val);
-
-    void rotate(const Point4D& point4D, double val);
-    void translate(const Point4D& point4D);
-
     void setAddTraceCallBack(std::function<void(Point4D, Point4D)> add) {
-        addTraceCallBack = std::move(add);
+        _addTraceCallBack = std::move(add);
     }
 
     [[nodiscard]] std::string name() const { return _name; }
 
     void addAmmo(int ammoAdd) { _stockAmmo += ammoAdd; }
 
-    virtual std::map<std::string, double> processFire(std::shared_ptr<World> world, std::shared_ptr<Camera> camera);
-
     [[nodiscard]] int initialPack() const {return _initialPack; }
 };