diff --git a/Player.cpp b/Player.cpp
index 9c76211..c9debae 100644
--- a/Player.cpp
+++ b/Player.cpp
@@ -60,7 +60,7 @@ void Player::collisionWithObject(const ObjectNameTag &tag, std::shared_ptr<Rigid
 }
 
 void Player::addWeapon(std::shared_ptr<Weapon> weapon) {
-    SoundController::playSound(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
+    SoundController::loadAndPlay(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
 
     for (auto &w : _weapons) {
         if (w->name() == weapon->name()) {
@@ -125,7 +125,7 @@ void Player::selectNextWeapon() {
             _addWeaponCallBack(_weapons[_selectedWeapon]);
         }
         Log::log("selectedWeapon " + std::to_string(_selectedWeapon));
-        SoundController::playSound(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
+        SoundController::loadAndPlay(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
     }
 }
 
@@ -144,7 +144,7 @@ void Player::selectPreviousWeapon() {
             _addWeaponCallBack(_weapons[_selectedWeapon]);
         }
         Log::log("selectedWeapon " + std::to_string(_selectedWeapon));
-        SoundController::playSound(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
+        SoundController::loadAndPlay(SoundTag("changeWeapon"), ShooterConsts::CHANGE_WEAPON_SOUND);
     }
 }
 
@@ -169,10 +169,10 @@ void Player::reload() {
 
 void Player::setFullHealth() {
     _health = ShooterConsts::HEALTH_MAX;
-    SoundController::playSound(SoundTag("addHealth"), ShooterConsts::RESTORE_HEALTH_SOUND);
+    SoundController::loadAndPlay(SoundTag("addHealth"), ShooterConsts::RESTORE_HEALTH_SOUND);
 }
 
 void Player::setFullAbility() {
     _ability = ShooterConsts::ABILITY_MAX;
-    SoundController::playSound(SoundTag("addAbility"), ShooterConsts::RESTORE_ABILITY_SOUND);
+    SoundController::loadAndPlay(SoundTag("addAbility"), ShooterConsts::RESTORE_ABILITY_SOUND);
 }
diff --git a/PlayerController.cpp b/PlayerController.cpp
index 42b21ac..145e181 100644
--- a/PlayerController.cpp
+++ b/PlayerController.cpp
@@ -28,7 +28,7 @@ void PlayerController::update() {
             _player->setAcceleration(
                     _player->acceleration() * ShooterConsts::SLOW_MO_COEFFICIENT * ShooterConsts::SLOW_MO_COEFFICIENT);
             SoundController::stopSound(SoundTag("slowMo"));
-            SoundController::playSound(SoundTag("unSlowMo"), ShooterConsts::UN_SLOW_MO_SOUND);
+            SoundController::loadAndPlay(SoundTag("unSlowMo"), ShooterConsts::UN_SLOW_MO_SOUND);
         }
     }
 
@@ -128,13 +128,13 @@ void PlayerController::update() {
                                           (ShooterConsts::SLOW_MO_COEFFICIENT * ShooterConsts::SLOW_MO_COEFFICIENT),
                                        0));
         SoundController::stopSound(SoundTag("unSlowMo"));
-        SoundController::playSound(SoundTag("slowMo"), ShooterConsts::SLOW_MO_SOUND);
+        SoundController::loadAndPlay(SoundTag("slowMo"), ShooterConsts::SLOW_MO_SOUND);
     } else if (_isInSlowMo && !Keyboard::isKeyPressed(sf::Keyboard::LShift)) {
         _isInSlowMo = false;
         _player->setVelocity(_player->velocity() * ShooterConsts::SLOW_MO_COEFFICIENT);
         _player->setAcceleration(Vec3D(0, -ShooterConsts::GRAVITY, 0));
         SoundController::stopSound(SoundTag("slowMo"));
-        SoundController::playSound(SoundTag("unSlowMo"), ShooterConsts::UN_SLOW_MO_SOUND);
+        SoundController::loadAndPlay(SoundTag("unSlowMo"), ShooterConsts::UN_SLOW_MO_SOUND);
     }
 
     if (Mouse::isButtonPressed(sf::Mouse::Button::Left)) {
@@ -209,7 +209,7 @@ void PlayerController::update() {
     }
     if ((_inRunning || _player->velocity().sqrAbs() > 3) && _player->inCollision() && !walkSoundPlayed) {
         int soundNum = (int) ((double) rand() / RAND_MAX * 6) + 1;
-        SoundController::playSound(SoundTag("walkSound_" + std::to_string(soundNum)),
+        SoundController::loadAndPlay(SoundTag("walkSound_" + std::to_string(soundNum)),
                                    "sound/stonestep" + std::to_string(soundNum) + ".ogg");
     }
 }
diff --git a/README.md b/README.md
index ca94a3c..f2af94c 100644
--- a/README.md
+++ b/README.md
@@ -29,19 +29,20 @@ Source code of simple shooter on [3Dzavr game engine](https://github.com/vectoza
 
 <h4>Control:</h4>
 
-<b>SHIFT</b> - slow motion (this ability is not infinite: its bar is next to hp)
+<b>Mouse</b>, <b>Space</b>, <b>A</b>, <b>S</b>, <b>W</b>, <b>D</b> – player control.
 
-<b>E & Q </b> or keys <b> <- -> </b> - change weapon
+<b>SHIFT</b> – slow motion (this ability is not infinite: its bar is next to hp)
 
-<b>R</b> - recharge
+<b>E & Q </b> or keys <b> <- -> </b> – change weapon
 
-Player control is standard.
+<b>R</b> – recharge
+
+<b>O</b> – turn OpenGL on/off
+
+<b>Tab</b> – turn debug mode on/off
 
 <h4>Playing with a source code:</h4>
 
-Structure:
-![Project demonstration](img/structure.png)
-
 1) [Download and install OpenAL library](https://openal.org/downloads/) for SFML sound support (in current version you can't setup this engine without OpenAL)
 
 2) Clone this repository
@@ -56,7 +57,8 @@ Structure:
 
 P/S: <b>SFML for 32-bit OS Windows is already included into this repository.</b> So, you don't need to manually install it to your computer. If you have any problems with SFML, you can try to [download another version or build SFML by yourself.](https://www.sfml-dev.org/download.php) 
 
-Demos:
+Structure:
+![Project demonstration](img/structure.png)
 
 Online:
 ![Project demonstration](img/gamePlay4.png)
diff --git a/Shooter.cpp b/Shooter.cpp
index ab28fa6..8dbef0a 100644
--- a/Shooter.cpp
+++ b/Shooter.cpp
@@ -113,14 +113,14 @@ void Shooter::start() {
 
     mainMenu.addButton(screen->width() / 2, 200, 200, 20, [this]() {
                            this->play();
-                           SoundController::playSound(SoundTag("click"), ShooterConsts::CLICK_SOUND);
+                           SoundController::loadAndPlay(SoundTag("click"), ShooterConsts::CLICK_SOUND);
                        }, "Server: " + client->serverIp().toString(), 5, 5, ShooterConsts::MAIN_MENU_GUI, {0, 66}, {0, 86}, {0, 46},
                        Consts::MEDIUM_FONT, {255, 255, 255});
     mainMenu.addButton(screen->width() / 2, 350, 200, 20, [this]() {
         this->player->translateToPoint(Vec3D{0, 0, 0});
         this->player->setVelocity({});
         this->play();
-        SoundController::playSound(SoundTag("click"), ShooterConsts::CLICK_SOUND);
+        SoundController::loadAndPlay(SoundTag("click"), ShooterConsts::CLICK_SOUND);
     }, "Respawn", 5, 5, ShooterConsts::MAIN_MENU_GUI, {0, 66}, {0, 86}, {0, 46}, Consts::MEDIUM_FONT, {255, 255, 255});
 
     mainMenu.addButton(screen->width() / 2, 500, 200, 20, [this]() {
@@ -173,7 +173,7 @@ void Shooter::update() {
 
     // background sounds and music control
     if (SoundController::getStatus(SoundTag("background")) != sf::Sound::Status::Playing) {
-        SoundController::playSound(SoundTag("background"), ShooterConsts::BACK_NOISE);
+        SoundController::loadAndPlay(SoundTag("background"), ShooterConsts::BACK_NOISE);
     }
 }
 
@@ -280,9 +280,9 @@ void Shooter::spawnPlayer(sf::Uint16 id) {
     int colorBodyNum = static_cast<int> (static_cast<double>((rand() - 1)) / RAND_MAX * 5.0);
     int colorFootNum = static_cast<int> (static_cast<double>((rand() - 1)) / RAND_MAX * 5.0);
 
-    newPlayer->setColor(ShooterConsts::WHITE_COLORS[colorBodyNum]);
-    world->body(ObjectNameTag(name + "_foot_1"))->setColor(ShooterConsts::DARK_COLORS[colorFootNum]);
-    world->body(ObjectNameTag(name + "_foot_2"))->setColor(ShooterConsts::DARK_COLORS[colorFootNum]);
+    newPlayer->setColor(Consts::WHITE_COLORS[colorBodyNum]);
+    world->body(ObjectNameTag(name + "_foot_1"))->setColor(Consts::DARK_COLORS[colorFootNum]);
+    world->body(ObjectNameTag(name + "_foot_2"))->setColor(Consts::DARK_COLORS[colorFootNum]);
 
     changeEnemyWeapon("gun", id);
 }
diff --git a/ShooterClient.cpp b/ShooterClient.cpp
index becdafd..536830f 100644
--- a/ShooterClient.cpp
+++ b/ShooterClient.cpp
@@ -19,17 +19,17 @@ void ShooterClient::updatePacket() {
 
 void ShooterClient::processInit(sf::Packet &packet) {
     sf::Uint16 targetId;
-    double buf[4];
+    double x, y, z, health;
     int kills, deaths;
 
-    while (packet >> targetId >> buf[0] >> buf[1] >> buf[2] >> buf[3] >> kills >> deaths) {
+    while (packet >> targetId >> x >> y >> z >> health >> kills >> deaths) {
         if (targetId != _socket.ownId()) {
             if (_spawnPlayerCallBack != nullptr) {
                 _spawnPlayerCallBack(targetId);
             }
 
-            _players[targetId]->translateToPoint(Vec3D{buf[0], buf[1], buf[2]});
-            _players[targetId]->setHealth(buf[3]);
+            _players[targetId]->translateToPoint(Vec3D{x, y, z});
+            _players[targetId]->setHealth(health);
             _players[targetId]->setKills(kills);
             _players[targetId]->setDeaths(deaths);
         }
@@ -38,21 +38,21 @@ void ShooterClient::processInit(sf::Packet &packet) {
 
 void ShooterClient::processUpdate(sf::Packet &packet) {
     sf::Uint16 targetId;
-    double buf[6];
+    double x, y, z, health, bodyAngle, headAngle;
     std::string playerName;
 
-    while (packet >> targetId >> buf[0] >> buf[1] >> buf[2] >> buf[3] >> buf[4] >> buf[5] >> playerName) {
+    while (packet >> targetId >> x >> y >> z >> health >> bodyAngle >> headAngle >> playerName) {
         if (_players.count(targetId)) {
             std::string name = "Enemy_" + std::to_string(targetId);
 
-            Vec3D newPosition = Vec3D{buf[0], buf[1], buf[2]};
+            Vec3D newPosition = Vec3D{x, y, z};
 
             bool isAnimate = (_players[targetId]->position() - newPosition).sqrAbs() > 0.2;
 
             _players[targetId]->translateToPoint(newPosition);
 
-            _players[targetId]->setHealth(buf[3]);
-            _players[targetId]->rotateToAngle(Vec3D{0, buf[4], 0});
+            _players[targetId]->setHealth(health);
+            _players[targetId]->rotateToAngle(Vec3D{0, bodyAngle, 0});
             _players[targetId]->setPlayerNickName(playerName);
 
             auto head = _players[targetId]->attached(ObjectNameTag(name + "_head"));
@@ -62,10 +62,10 @@ void ShooterClient::processUpdate(sf::Packet &packet) {
             auto foot2 = _players[targetId]->attached(ObjectNameTag(name + "_foot_2"));
 
             if (head != nullptr) {
-                head->rotateLeft(buf[5] - _players[targetId]->headAngle());
+                head->rotateLeft(headAngle - _players[targetId]->headAngle());
             }
             if (weapon != nullptr) {
-                weapon->rotateLeft(buf[5] - _players[targetId]->headAngle());
+                weapon->rotateLeft(headAngle - _players[targetId]->headAngle());
             }
 
             if (isAnimate) {
@@ -97,9 +97,9 @@ void ShooterClient::processUpdate(sf::Packet &packet) {
                 }
             }
 
-            _players[targetId]->setHeadAngle(buf[5]);
+            _players[targetId]->setHeadAngle(headAngle);
         } else if (targetId == _socket.ownId()) {
-            _player->setHealth(buf[3]);
+            _player->setHealth(health);
         }
     }
 }
@@ -136,7 +136,7 @@ void ShooterClient::processCustomPacket(sf::Packet &packet) {
             _lastEvent = "";
             if (buffId[1] == _socket.ownId()) {
                 _player->addKill();
-                SoundController::playSound(SoundTag("kill"), ShooterConsts::KILL_SOUND);
+                SoundController::loadAndPlay(SoundTag("kill"), ShooterConsts::KILL_SOUND);
                 _lastEvent += _player->playerNickName();
             } else {
                 _players[buffId[1]]->addKill();
@@ -182,7 +182,7 @@ void ShooterClient::processCustomPacket(sf::Packet &packet) {
                 }, 1, 0.1);
 
 
-                SoundController::playSound(SoundTag("death"), ShooterConsts::DEATH_SOUND);
+                SoundController::loadAndPlay(SoundTag("death"), ShooterConsts::DEATH_SOUND);
                 _lastEvent += _player->playerNickName();
             } else {
                 _players[buffId[0]]->addDeath();
diff --git a/ShooterConsts.h b/ShooterConsts.h
index 24a4c92..31619d8 100644
--- a/ShooterConsts.h
+++ b/ShooterConsts.h
@@ -60,22 +60,6 @@ namespace ShooterConsts {
     const std::string SLOW_MO_SOUND = "sound/slow_mo.ogg";
     const std::string UN_SLOW_MO_SOUND = "sound/unslow_mo.ogg";
     const std::string NO_AMMO_SOUND = "sound/weapons/no_ammo.ogg";
-
-    const sf::Color WHITE_COLORS[] = {
-            sf::Color(137, 135, 222), // blue
-            sf::Color(195, 155, 209), // pink
-            sf::Color(201, 137, 137), // red
-            sf::Color(116, 204, 135), // green
-            sf::Color(201, 171, 137), // orange
-    };
-
-    const sf::Color DARK_COLORS[] = {
-            sf::Color(16, 18, 69), // blue
-            sf::Color(77, 0, 62), // pink
-            sf::Color(99, 20, 20), // red
-            sf::Color(12, 46, 9), // green
-            sf::Color(97, 70, 51), // orange
-    };
 }
 
 #endif //SHOOTER_SHOOTERCONSTS_H
diff --git a/ShooterServer.cpp b/ShooterServer.cpp
index f66cae7..f72b56f 100644
--- a/ShooterServer.cpp
+++ b/ShooterServer.cpp
@@ -49,13 +49,15 @@ void ShooterServer::processConnect(sf::Uint16 targetId) {
 }
 
 void ShooterServer::processClientUpdate(sf::Uint16 senderId, sf::Packet &packet) {
-    double buf[5];
+    double x, y, z, angleBody, headAngle;
+
     std::string playerName;
 
-    packet >> buf[0] >> buf[1] >> buf[2] >> buf[3] >> buf[4] >> playerName;
-    _players.at(senderId)->translateToPoint(Vec3D{buf[0], buf[1], buf[2]});
-    _players.at(senderId)->rotateToAngle(Vec3D{0, buf[3], 0});
-    _players.at(senderId)->setHeadAngle(buf[4]);
+    packet >> x >> y >> z >> angleBody >> headAngle >> playerName;
+
+    _players.at(senderId)->translateToPoint(Vec3D{x, y, z});
+    _players.at(senderId)->rotateToAngle(Vec3D{0, angleBody, 0});
+    _players.at(senderId)->setHeadAngle(headAngle);
     _players.at(senderId)->setPlayerNickName(playerName);
 }
 
diff --git a/engine/Consts.h b/engine/Consts.h
index 6edb3cd..7282b0e 100644
--- a/engine/Consts.h
+++ b/engine/Consts.h
@@ -39,6 +39,22 @@ namespace Consts {
     const int NETWORK_WORLD_UPDATE_RATE = 30;
     const double NETWORK_RELIABLE_RETRY_TIME = 1.0 / 20;
     const uint16_t NETWORK_MAX_CLIENTS = 64;
+
+    const sf::Color WHITE_COLORS[] = {
+            sf::Color(137, 135, 222), // blue
+            sf::Color(195, 155, 209), // pink
+            sf::Color(201, 137, 137), // red
+            sf::Color(116, 204, 135), // green
+            sf::Color(201, 171, 137), // orange
+    };
+
+    const sf::Color DARK_COLORS[] = {
+            sf::Color(16, 18, 69), // blue
+            sf::Color(77, 0, 62), // pink
+            sf::Color(99, 20, 20), // red
+            sf::Color(12, 46, 9), // green
+            sf::Color(97, 70, 51), // orange
+    };
 }
 
 #endif //SHOOTER_CONSTS_H
diff --git a/engine/Object.cpp b/engine/Object.cpp
index 5f25df9..c107538 100644
--- a/engine/Object.cpp
+++ b/engine/Object.cpp
@@ -149,20 +149,24 @@ void Object::unattach(const ObjectNameTag &tag) {
 GLfloat *Object::glInvModel() const {
     auto *v = new GLfloat[4 * 4];
 
-    v[0] = -static_cast<GLfloat>(left().x());
-    v[4] = -static_cast<GLfloat>(left().y());
-    v[8] = -static_cast<GLfloat>(left().z());
-    v[12] = static_cast<GLfloat>(position().dot(left()));
+    Vec3D _left = _transformMatrix.x();
+    Vec3D _up = _transformMatrix.y();
+    Vec3D _lookAt = _transformMatrix.z();
 
-    v[1] = static_cast<GLfloat>(up().x());
-    v[5] = static_cast<GLfloat>(up().y());
-    v[9] = static_cast<GLfloat>(up().z());
-    v[13] = -static_cast<GLfloat>(position().dot(up()));
+    v[0] = -static_cast<GLfloat>(_left.x());
+    v[4] = -static_cast<GLfloat>(_left.y());
+    v[8] = -static_cast<GLfloat>(_left.z());
+    v[12] = static_cast<GLfloat>(position().dot(_left));
 
-    v[2] = -static_cast<GLfloat>(lookAt().x());
-    v[6] = -static_cast<GLfloat>(lookAt().y());
-    v[10] = -static_cast<GLfloat>(lookAt().z());
-    v[14] = static_cast<GLfloat>(position().dot(lookAt()));
+    v[1] = static_cast<GLfloat>(_up.x());
+    v[5] = static_cast<GLfloat>(_up.y());
+    v[9] = static_cast<GLfloat>(_up.z());
+    v[13] = -static_cast<GLfloat>(position().dot(_up));
+
+    v[2] =  -static_cast<GLfloat>(_lookAt.x());
+    v[6] =  -static_cast<GLfloat>(_lookAt.y());
+    v[10] = -static_cast<GLfloat>(_lookAt.z());
+    v[14] = static_cast<GLfloat>(position().dot(_lookAt));
 
     v[3] = static_cast<GLfloat>(0.0f);
     v[7] = static_cast<GLfloat>(0.0f);
@@ -175,19 +179,23 @@ GLfloat *Object::glInvModel() const {
 GLfloat *Object::glModel() const {
     auto *m = new GLfloat[4 * 4];
 
-    m[0] = static_cast<GLfloat>(left().x());
-    m[4] = static_cast<GLfloat>(up().x());
-    m[8] = static_cast<GLfloat>(lookAt().x());
+    Vec3D _left = _transformMatrix.x();
+    Vec3D _up = _transformMatrix.y();
+    Vec3D _lookAt = _transformMatrix.z();
+
+    m[0] = static_cast<GLfloat>(_left.x());
+    m[4] = static_cast<GLfloat>(_up.x());
+    m[8] = static_cast<GLfloat>(_lookAt.x());
     m[12] = static_cast<GLfloat>(position().x());
 
-    m[1] = static_cast<GLfloat>(left().y());
-    m[5] = static_cast<GLfloat>(up().y());
-    m[9] = static_cast<GLfloat>(lookAt().y());
+    m[1] = static_cast<GLfloat>(_left.y());
+    m[5] = static_cast<GLfloat>(_up.y());
+    m[9] = static_cast<GLfloat>(_lookAt.y());
     m[13] = static_cast<GLfloat>(position().y());
 
-    m[2] = static_cast<GLfloat>(left().z());
-    m[6] = static_cast<GLfloat>(up().z());
-    m[10] = static_cast<GLfloat>(lookAt().z());
+    m[2] = static_cast<GLfloat>(_left.z());
+    m[6] = static_cast<GLfloat>(_up.z());
+    m[10] = static_cast<GLfloat>(_lookAt.z());
     m[14] = static_cast<GLfloat>(position().z());
 
     m[3] = static_cast<GLfloat>(0.0f);
diff --git a/engine/Object.h b/engine/Object.h
index abadd6f..7c802f1 100644
--- a/engine/Object.h
+++ b/engine/Object.h
@@ -73,9 +73,9 @@ public:
     void rotateUp(double ru);
     void rotateLookAt(double rlAt);
 
-    [[nodiscard]] Vec3D left() const { return _transformMatrix.x(); }
-    [[nodiscard]] Vec3D up() const { return _transformMatrix.y(); }
-    [[nodiscard]] Vec3D lookAt() const { return _transformMatrix.z(); }
+    [[nodiscard]] Vec3D left() const { return _transformMatrix.x().normalized(); }
+    [[nodiscard]] Vec3D up() const { return _transformMatrix.y().normalized(); }
+    [[nodiscard]] Vec3D lookAt() const { return _transformMatrix.z().normalized(); }
     [[nodiscard]] Vec3D position() const { return _position; }
     [[nodiscard]] Vec3D angle() const { return _angle; }
     [[nodiscard]] Vec3D angleLeftUpLookAt() const { return _angleLeftUpLookAt; }
diff --git a/engine/SoundController.cpp b/engine/SoundController.cpp
index 16bc162..28f08ca 100644
--- a/engine/SoundController.cpp
+++ b/engine/SoundController.cpp
@@ -16,15 +16,27 @@ void SoundController::init() {
     Log::log("SoundController::init(): sound controller was initialized");
 }
 
-void SoundController::playSound(const SoundTag &soundTag, const std::string &filename) {
+void SoundController::loadAndPlay(const SoundTag &soundTag, const std::string& filename) {
+    if (_instance == nullptr) {
+        return;
+    }
+    if (_instance->_sounds.count(soundTag) != 0) {
+        _instance->_sounds[soundTag] = sf::Sound(*ResourceManager::loadSoundBuffer(filename));
+    } else {
+        _instance->_sounds.emplace(soundTag, sf::Sound(*ResourceManager::loadSoundBuffer(filename)));
+    }
+
+    _instance->_sounds[soundTag].play();
+}
+
+void SoundController::playSound(const SoundTag &soundTag) {
     if (_instance == nullptr) {
         return;
     }
 
-    if (_instance->_sounds.count(soundTag) == 0) {
-        _instance->_sounds.emplace(soundTag, sf::Sound(*ResourceManager::loadSoundBuffer(filename)));
+    if (_instance->_sounds.count(soundTag) != 0) {
+        _instance->_sounds[soundTag].play();
     }
-    _instance->_sounds[soundTag].play();
 }
 
 void SoundController::pauseSound(const SoundTag &soundTag) {
diff --git a/engine/SoundController.h b/engine/SoundController.h
index db3cce9..45fca4a 100644
--- a/engine/SoundController.h
+++ b/engine/SoundController.h
@@ -38,10 +38,10 @@ public:
 
     SoundController &operator=(SoundController &) = delete;
 
-    static void playSound(const SoundTag &soundTag, const std::string &filename);
+    static void loadAndPlay(const SoundTag &soundTag, const std::string& filename);
 
+    static void playSound(const SoundTag &soundTag);
     static void pauseSound(const SoundTag &soundTag);
-
     static void stopSound(const SoundTag &soundTag);
 
     static sf::Sound::Status getStatus(const SoundTag &soundTag);
diff --git a/engine/Triangle.h b/engine/Triangle.h
index d474c08..7a32d64 100644
--- a/engine/Triangle.h
+++ b/engine/Triangle.h
@@ -29,6 +29,8 @@ public:
 
     [[nodiscard]] const Vec4D& operator[](int i) const;
 
+    [[nodiscard]] Vec3D position() const { return Vec3D(_points[0] + _points[1] + _points[2])/3; }
+
     [[nodiscard]] Vec3D norm() const;
 
     // Operations with Matrix4x4
diff --git a/engine/physics/RigidBody.cpp b/engine/physics/RigidBody.cpp
index 1c9cbae..0d1db28 100644
--- a/engine/physics/RigidBody.cpp
+++ b/engine/physics/RigidBody.cpp
@@ -18,6 +18,10 @@ RigidBody::RigidBody(ObjectNameTag nameTag, const std::string &filename, const V
 RigidBody::RigidBody(const Mesh &mesh, bool useSimpleBox) : Mesh(mesh), _hitBox(mesh, useSimpleBox) {
 }
 
+void RigidBody::regenerateHitBox(bool useSimpleBox) {
+    _hitBox = HitBox(*this, useSimpleBox);
+}
+
 Vec3D RigidBody::_findFurthestPoint(const Vec3D &direction) {
     Vec3D maxPoint{0, 0, 0};
 
diff --git a/engine/physics/RigidBody.h b/engine/physics/RigidBody.h
index b53fc11..98d02a3 100644
--- a/engine/physics/RigidBody.h
+++ b/engine/physics/RigidBody.h
@@ -70,6 +70,8 @@ public:
     [[nodiscard]] CollisionPoint EPA(const Simplex &simplex, std::shared_ptr<RigidBody> obj);
     void solveCollision(const CollisionPoint &collision);
 
+    void regenerateHitBox(bool useSimpleBox = true);
+
     [[nodiscard]] Vec3D collisionNormal() const { return _collisionNormal; }
     [[nodiscard]] bool hasCollision() const { return _hasCollision; }
     [[nodiscard]] bool inCollision() const { return _inCollision; }
diff --git a/weapon/Weapon.cpp b/weapon/Weapon.cpp
index a72dd52..649849e 100644
--- a/weapon/Weapon.cpp
+++ b/weapon/Weapon.cpp
@@ -31,7 +31,7 @@ FireInformation Weapon::fire(std::function<IntersectionInformation(const Vec3D &
     if (_clipAmmo == 0) {
         reload();
         if (_clipAmmo == 0 && SoundController::getStatus(SoundTag("noAmmo")) != sf::Sound::Status::Playing) {
-            SoundController::playSound(SoundTag("noAmmo"), ShooterConsts::NO_AMMO_SOUND);
+            SoundController::loadAndPlay(SoundTag("noAmmo"), ShooterConsts::NO_AMMO_SOUND);
         }
     }
 
@@ -47,7 +47,7 @@ FireInformation Weapon::fire(std::function<IntersectionInformation(const Vec3D &
         reload();
     }
 
-    SoundController::playSound(SoundTag("fireSound_" + name().str()), _fireSound);
+    SoundController::loadAndPlay(SoundTag("fireSound_" + name().str()), _fireSound);
     Log::log("Weapon::fire (" + std::to_string(_stockAmmo) + " : " + std::to_string(_clipAmmo) + ")");
 
     return FireInformation{processFire(std::move(rayCastFunction), position, direction), true};
@@ -65,7 +65,7 @@ void Weapon::reload() {
         _stockAmmo = 0;
     }
 
-    SoundController::playSound(SoundTag("reloadSound_" + name().str()), _reloadSound);
+    SoundController::loadAndPlay(SoundTag("reloadSound_" + name().str()), _reloadSound);
     Log::log("Weapon::reload (" + std::to_string(_stockAmmo) + " : " + std::to_string(_clipAmmo) + ")");
     _lastReloadTime = Time::time();