Huge refactoring v3

Player.cpp

@@ -10,9 +10,8 @@ Player::Player(ObjectNameTag name) : RigidBody(name) {
     loadObj(ShooterConsts::CUBE_OBJ, Vec3D{0.5, 1.9, 0.5});
     setAcceleration(Vec3D{0, -ShooterConsts::GRAVITY, 0});
     setCollision(true);
-    setVisible(false);
+    //setVisible(false);
 
-    //setColor({240, 168, 168});
     Vec3D randColor = Vec3D::Random();
     setColor({static_cast<sf::Uint8>(randColor.x()*255), static_cast<sf::Uint8>(randColor.y()*255), static_cast<sf::Uint8>(randColor.z()*255)});
 
@@ -73,7 +72,7 @@ void Player::addWeapon(std::shared_ptr<Weapon> weapon) {
     attach(weapon);
 
     _weapons.back()->translate(position());
-    _weapons.back()->rotateRelativePoint(position() + Vec3D{0, 1.8, 0}, Vec3D{0, 1, 0}, _angle.y());
+    _weapons.back()->rotateRelativePoint(position() + Vec3D{0, 1.8, 0}, Vec3D{0, 1, 0}, angle().y());
     _weapons.back()->rotateRelativePoint(position() + Vec3D{0, 1.8, 0}, left(), headAngle());
 
     _weapons.back()->setAddTraceCallBack(_addTraceCallBack);

Shooter.cpp

@@ -89,11 +89,11 @@ void Shooter::start() {
 
     player->initWeapons();
 
+    player->translate(Vec3D{0, 0, 0});
     camera->translateToPoint(player->position() + Vec3D{0, 1.8, 0});
     player->attach(camera);
 
     world->addBody(player);
-    player->translate(Vec3D{0, 10, 0});
 
     // connecting to the server
     InitNetwork();

Source.cpp

@@ -6,6 +6,7 @@
 
 using namespace std;
 
+
 int main() {
     Shooter game;
 

engine/Camera.cpp

@@ -126,30 +126,3 @@ void Camera::clear() {
     _triangles.clear();
     _V = Matrix4x4::View(left(), up(), lookAt(), position());
 }
-
-// OpenGL function
-GLfloat *Camera::view() const {
-    auto* v = (GLfloat*)malloc(4*4*sizeof(GLfloat));
-
-    v[0] = -(GLfloat)left().x();
-    v[4] = -(GLfloat)left().y();
-    v[8] = -(GLfloat)left().z();
-    v[12] = (GLfloat)position().dot(left());
-
-    v[1] = (GLfloat)up().x();
-    v[5] = (GLfloat)up().y();
-    v[9] = (GLfloat)up().z();
-    v[13] = -(GLfloat)position().dot(up());
-
-    v[2] = -(GLfloat)lookAt().x();
-    v[6] = -(GLfloat)lookAt().y();
-    v[10] = -(GLfloat)lookAt().z();
-    v[14] = (GLfloat)position().dot(lookAt());
-
-    v[3] = (GLfloat)0.0f;
-    v[7] = (GLfloat)0.0f;
-    v[11] = (GLfloat)0.0f;
-    v[15] = (GLfloat)1.0f;
-
-    return v;
-}

engine/Camera.h

@@ -38,8 +38,6 @@ public:
     [[nodiscard]] int buffSize() const { return _triangles.size(); }
     std::vector<std::shared_ptr<Triangle>> sorted();
 
-    // OpenGL function
-    [[nodiscard]] GLfloat* view() const;
 };
 
 

engine/Engine.cpp

@@ -43,12 +43,14 @@ void Engine::create(int screenWidth, int screenHeight, const std::string &name,
             world->update();
 
             if(_useOpenGL) {
-                GLfloat* view = camera->view();
+                GLfloat* view = camera->glView();
                 for(auto & it : *world) {
                     if (it.second->isVisible()) {
+                        GLfloat* model = it.second->glModel();
                         GLfloat* geometry = Screen::glMeshToGLfloatArray(it.second, camera->position());
-                        screen->glDrawMesh(geometry, view, 3 * it.second->triangles().size());
+                        screen->glDrawMesh(geometry, view, model, 3 * it.second->triangles().size());
                         free(geometry);
+                        free(model);
                     }
                 }
                 free(view);

engine/Matrix4x4.cpp

@@ -85,9 +85,13 @@ Matrix4x4 Matrix4x4::Translation(const Vec3D& v) {
     t._arr[2][2] = 1.0;
     t._arr[3][3] = 1.0;
 
-    t._arr[0][3] = v.x();
+    //t._arr[0][3] = v.x();
-    t._arr[1][3] = v.y();
+    //t._arr[1][3] = v.y();
-    t._arr[2][3] = v.z();
+    //t._arr[2][3] = v.z();
+
+    t._arr[3][0] = v.x();
+    t._arr[3][1] = v.y();
+    t._arr[3][2] = v.z();
 
     return t;
 }
@@ -210,3 +214,15 @@ Matrix4x4 Matrix4x4::View(const Vec3D &left, const Vec3D &up, const Vec3D &lookA
 
     return V;
 }
+
+Vec3D Matrix4x4::x() const {
+    return Vec3D(_arr[0][0], _arr[1][0],_arr[2][0]);
+}
+
+Vec3D Matrix4x4::y() const {
+    return Vec3D(_arr[0][1], _arr[1][1],_arr[2][1]);
+}
+
+Vec3D Matrix4x4::z() const {
+    return Vec3D(_arr[0][2], _arr[1][2],_arr[2][2]);
+}

engine/Matrix4x4.h

@@ -21,6 +21,10 @@ public:
     [[nodiscard]] Vec4D operator*(const Vec4D& point4D) const;
     [[nodiscard]] Vec3D operator*(const Vec3D& vec) const;
 
+    [[nodiscard]] Vec3D x() const;
+    [[nodiscard]] Vec3D y() const;
+    [[nodiscard]] Vec3D z() const;
+
     // Any useful matrix (static methods)
     Matrix4x4 static Identity();
     Matrix4x4 static Zero();

engine/Mesh.cpp

@@ -29,42 +29,17 @@ void Mesh::loadObj(const std::string& filename, const Vec3D& scale) {
     this->scale(scale);
 }
 
-Mesh::Mesh(ObjectNameTag nameTag, const std::string& filename, const Vec3D& scale) : Object(nameTag) {
+Mesh::Mesh(ObjectNameTag nameTag, const std::string& filename, const Vec3D& scale) : Object(std::move(nameTag)) {
     loadObj(filename, scale);
 }
 
-Mesh::Mesh(ObjectNameTag nameTag, const vector<Triangle> &tries) : Object(nameTag), _tris(tries) {
+Mesh::Mesh(ObjectNameTag nameTag, const vector<Triangle> &tries) : Object(std::move(nameTag)), _tris(tries) {
 }
 
 Mesh Mesh::Obj(ObjectNameTag nameTag, const std::string& filename) {
     return Mesh(std::move(nameTag), filename);
 }
 
-void Mesh::rotate(const Vec3D &r) {
-    Object::rotate(r);
-    *this *= Matrix4x4::Rotation(r);
-}
-
-void Mesh::rotate(const Vec3D &v, double r) {
-    Object::rotate(v, r);
-    *this *= Matrix4x4::Rotation(v, r);
-}
-
-void Mesh::scale(const Vec3D &s) {
-    Object::scale(s);
-    *this *= Matrix4x4::Scale(s);
-}
-
-void Mesh::rotateRelativePoint(const Vec3D &s, const Vec3D &r) {
-    Object::rotateRelativePoint(s, r);
-    *this *= Matrix4x4::Rotation(r);
-}
-
-void Mesh::rotateRelativePoint(const Vec3D &s, const Vec3D &v, double r) {
-    Object::rotateRelativePoint(s, v, r);
-    *this *= Matrix4x4::Rotation(v, r);
-}
-
 void Mesh::setColor(const sf::Color& c) {
     _color = c;
 
@@ -78,7 +53,7 @@ void Mesh::setColor(const sf::Color& c) {
 
 Mesh Mesh::LineTo(ObjectNameTag nameTag, const Vec3D& from, const Vec3D& to, double line_width, const sf::Color& color) {
 
-    Mesh line(nameTag);
+    Mesh line(std::move(nameTag));
 
     Vec3D v1 = (to - from).normalized();
     Vec3D v2 = from.cross(from + Vec3D{1, 0, 0}).normalized();
@@ -115,10 +90,6 @@ Mesh Mesh::LineTo(ObjectNameTag nameTag, const Vec3D& from, const Vec3D& to, dou
     return line;
 }
 
-Mesh::Mesh(const Mesh &mesh) : Object(mesh.name()), _tris(mesh._tris), _color(mesh._color), _visible(mesh._visible) {
-
-}
-
 void Mesh::setTriangles(const vector<Triangle> &t) {
     _tris.clear();
     for (auto & tri : t) {

engine/Mesh.h

@@ -21,7 +21,7 @@ private:
 public:
     explicit Mesh(ObjectNameTag nameTag) : Object(std::move(nameTag)) {};
     Mesh& operator=(const Mesh& mesh) = delete;
-    Mesh(const Mesh& mesh);
+    Mesh(const Mesh& mesh) = default;
 
     explicit Mesh(ObjectNameTag nameTag, const std::vector<Triangle>& tries);
     explicit Mesh(ObjectNameTag nameTag, const std::string& filename, const Vec3D& scale = Vec3D{1, 1, 1});
@@ -32,16 +32,6 @@ public:
     [[nodiscard]] std::vector<Triangle>& triangles() { return _tris; }
     void setTriangles(const std::vector<Triangle>& t);
 
-    // Translate body
-    // Rotate body around XYZ axes
-    void rotate(const Vec3D& r) override;
-    // Rotate body around normalised vector 'v' by 'r' radians
-    void rotate(const Vec3D& v, double r) override;
-    // Rotate body around XYZ by (r._x, r._y, r.z) radians relative val 'point4D'
-    void rotateRelativePoint(const Vec3D& point, const Vec3D& r) override;
-    // Rotate body around normalised vector 'v' by 'r' radians relative val 'point4D'
-    void rotateRelativePoint(const Vec3D& point4D, const Vec3D& v, double r) override;
-    void scale(const Vec3D& s) override;
     [[nodiscard]] int size() const { return _tris.size()*3; }
 
     [[nodiscard]] sf::Color color() const { return _color; }

engine/Object.cpp

@@ -7,6 +7,7 @@
 #include "utils/Log.h"
 
 void Object::translate(const Vec3D &dv) {
+
     _position = _position + dv;
 
     for(auto &[attachedName, attachedObject] : _attachedObjects) {
@@ -17,6 +18,9 @@ void Object::translate(const Vec3D &dv) {
 }
 
 void Object::scale(const Vec3D &s) {
+
+    _transformMatrix = Matrix4x4::Scale(s)*_transformMatrix;
+
     for(auto &[attachedName, attachedObject] : _attachedObjects) {
         if(!attachedObject.expired()) {
             attachedObject.lock()->scale(s);
@@ -29,9 +33,7 @@ void Object::rotate(const Vec3D &r) {
 
     Matrix4x4 rotationMatrix = Matrix4x4::RotationZ(r.z())*Matrix4x4::RotationY(r.y())*Matrix4x4::RotationX(r.z());
 
-    _left = rotationMatrix * _left;
+    _transformMatrix = rotationMatrix*_transformMatrix;
-    _up = rotationMatrix * _up;
-    _lookAt = rotationMatrix * _lookAt;
 
     for(auto &[attachedName, attachedObject] : _attachedObjects) {
         if(!attachedObject.expired()) {
@@ -43,9 +45,7 @@ void Object::rotate(const Vec3D &r) {
 void Object::rotate(const Vec3D &v, double rv) {
     Matrix4x4 rotationMatrix = Matrix4x4::Rotation(v, rv);
 
-    _left = rotationMatrix * _left;
+    _transformMatrix = rotationMatrix*_transformMatrix;
-    _up = rotationMatrix * _up;
-    _lookAt = rotationMatrix * _lookAt;
 
     for(auto &[attachedName, attachedObject] : _attachedObjects) {
         if(!attachedObject.expired()) {
@@ -58,15 +58,13 @@ void Object::rotateRelativePoint(const Vec3D &s, const Vec3D &r) {
     _angle = _angle + r;
 
     // Translate XYZ by vector r1
-    Vec3D r1(_position - s);
+    Vec3D r1(position() - s);
 
     // In translated coordinate system we rotate body and position
     Matrix4x4 rotationMatrix = Matrix4x4::Rotation(r);
     Vec3D r2(rotationMatrix*r1);
 
-    _left = rotationMatrix * _left;
+    _transformMatrix = rotationMatrix*_transformMatrix;
-    _up = rotationMatrix * _up;
-    _lookAt = rotationMatrix * _lookAt;
 
     // After rotation we translate XYZ by vector -r2 and recalculate position
     _position = s + r2;
@@ -80,14 +78,12 @@ void Object::rotateRelativePoint(const Vec3D &s, const Vec3D &r) {
 
 void Object::rotateRelativePoint(const Vec3D &s, const Vec3D &v, double r) {
     // Translate XYZ by vector r1
-    Vec3D r1(_position - s);
+    Vec3D r1(position() - s);
     // In translated coordinate system we rotate body and position
     Matrix4x4 rotationMatrix = Matrix4x4::Rotation(v, r);
     Vec3D r2 = rotationMatrix*r1;
 
-    _left = rotationMatrix * _left;
+    _transformMatrix = rotationMatrix*_transformMatrix;
-    _up = rotationMatrix * _up;
-    _lookAt = rotationMatrix * _lookAt;
 
     // After rotation we translate XYZ by vector -r2 and recalculate position
     _position = s + r2;
@@ -104,7 +100,7 @@ void Object::rotateLeft(double rl) {
                                _angleLeftUpLookAt.y(),
                                _angleLeftUpLookAt.z()};
 
-    rotate(Vec3D(_left), rl);
+    rotate(left(), rl);
 }
 
 void Object::rotateUp(double ru) {
@@ -112,18 +108,18 @@ void Object::rotateUp(double ru) {
                                _angleLeftUpLookAt.y() + ru,
                                _angleLeftUpLookAt.z()};
 
-    rotate(Vec3D(_up), ru);
+    rotate(up(), ru);
 }
 
 void Object::rotateLookAt(double rlAt) {
     _angleLeftUpLookAt = Vec3D{_angleLeftUpLookAt.x(),
                                _angleLeftUpLookAt.y(),
                                _angleLeftUpLookAt.z() + rlAt};
-    rotate(Vec3D(_lookAt), rlAt);
+    rotate(lookAt(), rlAt);
 }
 
 void Object::translateToPoint(const Vec3D &point) {
-    translate(point - _position);
+    translate(point - position());
 }
 
 void Object::rotateToAngle(const Vec3D &v) {
@@ -162,6 +158,59 @@ void Object::unattach(const ObjectNameTag& tag) {
     _attachedObjects.erase(tag);
 }
 
+// OpenGL function
+GLfloat* Object::glView() const {
+    auto* v = (GLfloat*)malloc(4*4*sizeof(GLfloat));
+
+    v[0] = -(GLfloat)left().x();
+    v[4] = -(GLfloat)left().y();
+    v[8] = -(GLfloat)left().z();
+    v[12] = (GLfloat)position().dot(left());
+
+    v[1] = (GLfloat)up().x();
+    v[5] = (GLfloat)up().y();
+    v[9] = (GLfloat)up().z();
+    v[13] = -(GLfloat)position().dot(up());
+
+    v[2] = -(GLfloat)lookAt().x();
+    v[6] = -(GLfloat)lookAt().y();
+    v[10] = -(GLfloat)lookAt().z();
+    v[14] = (GLfloat)position().dot(lookAt());
+
+    v[3] = (GLfloat)0.0f;
+    v[7] = (GLfloat)0.0f;
+    v[11] = (GLfloat)0.0f;
+    v[15] = (GLfloat)1.0f;
+
+    return v;
+}
+
+GLfloat* Object::glModel() const {
+    auto* m = (GLfloat*)malloc(4*4*sizeof(GLfloat));
+
+    m[0] = (GLfloat)left().x();
+    m[4] = (GLfloat)up().x();
+    m[8] = (GLfloat)lookAt().x();
+    m[12] = (GLfloat)position().x();
+
+    m[1] = (GLfloat)left().y();
+    m[5] = (GLfloat)up().y();
+    m[9] = (GLfloat)lookAt().y();
+    m[13] = (GLfloat)position().y();
+
+    m[2] = (GLfloat)left().z();
+    m[6] = (GLfloat)up().z();
+    m[10] =(GLfloat)lookAt().z();
+    m[14] = (GLfloat)position().z();
+
+    m[3] = (GLfloat)0.0f;
+    m[7] = (GLfloat)0.0f;
+    m[11] = (GLfloat)0.0f;
+    m[15] = (GLfloat)1.0f;
+
+    return m;
+}
+
 Object::~Object() {
     _attachedObjects.clear();
 }

engine/Object.h

@@ -10,6 +10,8 @@
 #include <string>
 #include <utility>
 #include <memory>
+#include "Matrix4x4.h"
+#include <SFML/OpenGL.hpp>
 
 class ObjectNameTag final {
 private:
@@ -28,10 +30,7 @@ private:
     bool checkIfAttached(Object* obj);
     const ObjectNameTag _nameTag;
 
-protected:
+    Matrix4x4 _transformMatrix = Matrix4x4::Identity();
-    Vec3D _left     {1, 0, 0}; // internal X
-    Vec3D _up       {0, 1, 0}; // internal Y
-    Vec3D _lookAt   {0, 0, 1}; // internal Z
 
     std::map<ObjectNameTag, std::weak_ptr<Object>> _attachedObjects;
 
@@ -39,33 +38,40 @@ protected:
     Vec3D _angle            {0, 0, 0};
     Vec3D _angleLeftUpLookAt{0, 0, 0};
 public:
-    Object(ObjectNameTag nameTag) : _nameTag(nameTag) {};
+    explicit Object(ObjectNameTag nameTag) : _nameTag(std::move(nameTag)) {};
+    explicit Object(const Object& object) : _nameTag(object.name()), _transformMatrix(object.model()) {};
 
-    virtual void translate(const Vec3D& dv);
+    void translate(const Vec3D& dv);
-    virtual void translateToPoint(const Vec3D& point);
+    void translateToPoint(const Vec3D& point);
-    virtual void scale(const Vec3D& s);
+    void scale(const Vec3D& s);
-    virtual void rotate(const Vec3D& r);
+    void rotate(const Vec3D& r);
-    virtual void rotate(const Vec3D& v, double rv);
+    void rotate(const Vec3D& v, double rv);
-    virtual void rotateToAngle(const Vec3D& v);
+    void rotateToAngle(const Vec3D& v);
-    virtual void rotateRelativePoint(const Vec3D& s, const Vec3D& r);
+    void rotateRelativePoint(const Vec3D& s, const Vec3D& r);
-    virtual void rotateRelativePoint(const Vec3D& s, const Vec3D& v, double r);
+    void rotateRelativePoint(const Vec3D& s, const Vec3D& v, double r);
     void rotateLeft(double rl);
     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 position() const    { return _position; }
+
     [[nodiscard]] Vec3D angle() const { return _angle; }
     [[nodiscard]] Vec3D angleLeftUpLookAt() const { return _angleLeftUpLookAt; }
 
-    [[nodiscard]] Vec3D left() const { return _left; }
-    [[nodiscard]] Vec3D up() const { return _up; }
-    [[nodiscard]] Vec3D lookAt() const { return _lookAt; }
-
     void attach(std::shared_ptr<Object> object);
     void unattach(const ObjectNameTag& tag);
     std::shared_ptr<Object> attached(const ObjectNameTag& tag);
 
-    ObjectNameTag name() const { return _nameTag; }
+    [[nodiscard]] ObjectNameTag name() const { return _nameTag; }
+
+    [[nodiscard]] Matrix4x4 model() const { return _transformMatrix; }
+
+    // OpenGL function
+    [[nodiscard]] GLfloat* glModel() const;
+    [[nodiscard]] GLfloat* glView() const;
 
     virtual ~Object();
 };

engine/ResourceManager.cpp

@@ -10,9 +10,12 @@
 #include <fstream>
 
 ResourceManager* ResourceManager::_instance = nullptr;
+bool ResourceManager::_validInstance = false;
+
 
 void ResourceManager::init() {
     _instance = new ResourceManager();
+    _validInstance = true;
 }
 
 void ResourceManager::unloadTextures() {
@@ -41,6 +44,10 @@ void ResourceManager::unloadObjects() {
 }
 
 void ResourceManager::unloadAllResources() {
+    if(!_validInstance) {
+        return;
+    }
+
     unloadTextures();
     unloadSoundBuffers();
     unloadFonts();
@@ -49,12 +56,12 @@ void ResourceManager::unloadAllResources() {
 
 void ResourceManager::free() {
     unloadAllResources();
+    _validInstance = false;
     delete _instance;
-    _instance = nullptr;
 }
 
 std::shared_ptr<sf::Texture> ResourceManager::loadTexture(const std::string& filename) {
-    if(!_instance) {
+    if(!_validInstance) {
         return nullptr;
     }
 
@@ -78,7 +85,7 @@ std::shared_ptr<sf::Texture> ResourceManager::loadTexture(const std::string& fil
 }
 
 std::shared_ptr<sf::SoundBuffer> ResourceManager::loadSoundBuffer(const std::string& filename) {
-    if(!_instance) {
+    if(!_validInstance) {
         return nullptr;
     }
 
@@ -101,7 +108,7 @@ std::shared_ptr<sf::SoundBuffer> ResourceManager::loadSoundBuffer(const std::str
 }
 
 std::shared_ptr<sf::Font> ResourceManager::loadFont(const std::string& filename) {
-    if(!_instance) {
+    if(!_validInstance) {
         return nullptr;
     }
 
@@ -124,9 +131,14 @@ std::shared_ptr<sf::Font> ResourceManager::loadFont(const std::string& filename)
 }
 
 std::vector<std::shared_ptr<Mesh>> ResourceManager::loadObjects(const std::string &filename) {
+
     std::vector<std::shared_ptr<Mesh>> objects{};
     std::map<std::string, sf::Color> maters{};
 
+    if(!_validInstance) {
+        return objects;
+    }
+
     // If objects is already loaded - return pointer to it
     auto it = _instance->_objects.find(filename);
     if (it != _instance->_objects.end()) {

engine/ResourceManager.h

@@ -18,18 +18,19 @@ private:
     std::map<std::string, std::vector<std::shared_ptr<Mesh>>> _objects;
 
     static ResourceManager* _instance;
+    static bool _validInstance;
 
     ResourceManager() = default;
-public:
-    ResourceManager(const ResourceManager&) = delete;
-    ResourceManager& operator=(ResourceManager&) = delete;
-
     // Unloads all currently loaded textures.
     static void unloadObjects();
     static void unloadTextures();
     static void unloadSoundBuffers();
     static void unloadFonts();
 
+public:
+    ResourceManager(const ResourceManager&) = delete;
+    ResourceManager& operator=(ResourceManager&) = delete;
+
     static void unloadAllResources();
 
     static void init();

engine/Screen.cpp

@@ -135,7 +135,7 @@ void Screen::drawText(const sf::Text &text) {
 }
 
 // OpenGL functions
-void Screen::glDrawMesh(GLfloat* geometry, GLfloat* view, size_t count) {
+void Screen::glDrawMesh(GLfloat* geometry, GLfloat* view, GLfloat* model, size_t count) {
     // OpenGL:
     // Make the window the active window for OpenGL calls
     _window->setActive(true);
@@ -180,6 +180,7 @@ void Screen::glDrawMesh(GLfloat* geometry, GLfloat* view, size_t count) {
     glLoadIdentity();
 
     glLoadMatrixf(view);
+    glMultMatrixf(model);
 
     // Draw the mesh
     glDrawArrays(GL_TRIANGLES, 0, count);
@@ -195,9 +196,10 @@ GLfloat* Screen::glMeshToGLfloatArray(std::shared_ptr<Mesh> mesh, const Vec3D& c
     auto* geometry = (GLfloat*)malloc(7*3*triangles.size()*sizeof(GLfloat));
 
     for(int i = 0; i < triangles.size(); i++) {
+
         int stride = 21*i;
 
-        double dot = triangles[i].norm().dot((pos + Vec3D(triangles[i][0]) - cameraPosition).normalized());
+        double dot = triangles[i].norm().dot((pos + mesh->model()*Vec3D(triangles[i][0]) - cameraPosition).normalized());
         sf::Color color = triangles[i].color();
         sf::Color ambientColor = sf::Color((sf::Uint8)(color.r * (0.3 * std::abs(dot) + 0.7)),
                                            (sf::Uint8)(color.g * (0.3 * std::abs(dot) + 0.7)),
@@ -205,27 +207,27 @@ GLfloat* Screen::glMeshToGLfloatArray(std::shared_ptr<Mesh> mesh, const Vec3D& c
                                            (sf::Uint8)color.a);
 
 
-        geometry[stride + 0] = (GLfloat)triangles[i][0].x() + pos.x();
+        geometry[stride + 0] = (GLfloat)triangles[i][0].x();
-        geometry[stride + 1] = (GLfloat)triangles[i][0].y() + pos.y();
+        geometry[stride + 1] = (GLfloat)triangles[i][0].y();
-        geometry[stride + 2] = (GLfloat)triangles[i][0].z() + pos.z();
+        geometry[stride + 2] = (GLfloat)triangles[i][0].z();
 
         geometry[stride + 3] = (GLfloat)ambientColor.r/255.0f;
         geometry[stride + 4] = (GLfloat)ambientColor.g/255.0f;
         geometry[stride + 5] = (GLfloat)ambientColor.b/255.0f;
         geometry[stride + 6] = (GLfloat)ambientColor.a/255.0f;
 
-        geometry[stride + 7] = (GLfloat)triangles[i][1].x() + pos.x();
+        geometry[stride + 7] = (GLfloat)triangles[i][1].x();
-        geometry[stride + 8] = (GLfloat)triangles[i][1].y() + pos.y();
+        geometry[stride + 8] = (GLfloat)triangles[i][1].y();
-        geometry[stride + 9] = (GLfloat)triangles[i][1].z() + pos.z();
+        geometry[stride + 9] = (GLfloat)triangles[i][1].z();
 
         geometry[stride + 10] = (GLfloat)ambientColor.r/255.0f;
         geometry[stride + 11] = (GLfloat)ambientColor.g/255.0f;
         geometry[stride + 12] = (GLfloat)ambientColor.b/255.0f;
         geometry[stride + 13] = (GLfloat)ambientColor.a/255.0f;
 
-        geometry[stride + 14] = (GLfloat)triangles[i][2].x() + pos.x();
+        geometry[stride + 14] = (GLfloat)triangles[i][2].x();
-        geometry[stride + 15] = (GLfloat)triangles[i][2].y() + pos.y();
+        geometry[stride + 15] = (GLfloat)triangles[i][2].y();
-        geometry[stride + 16] = (GLfloat)triangles[i][2].z() + pos.z();
+        geometry[stride + 16] = (GLfloat)triangles[i][2].z();
 
         geometry[stride + 17] = (GLfloat)ambientColor.r/255.0f;
         geometry[stride + 18] = (GLfloat)ambientColor.g/255.0f;

engine/Screen.h

@@ -53,7 +53,7 @@ public:
     void setMouseCursorVisible(bool visible);
 
     // OpenGL functions
-    void glDrawMesh(GLfloat* geometry, GLfloat* view, size_t count);
+    void glDrawMesh(GLfloat* geometry, GLfloat* view, GLfloat* model, size_t count);
     static GLfloat* glMeshToGLfloatArray(std::shared_ptr<Mesh> mesh, const Vec3D& cameraPosition);
 
     [[nodiscard]] std::shared_ptr<sf::RenderWindow> renderWindow() { return _window; }

engine/SoundController.cpp

@@ -6,13 +6,16 @@
 #include "ResourceManager.h"
 
 SoundController* SoundController::_instance = nullptr;
+bool SoundController::_validInstance = false;
+
 
 void SoundController::init() {
     _instance = new SoundController();
+    _validInstance = true;
 }
 
 void SoundController::playSound(const SoundTag& soundTag, const std::string& filename) {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -22,7 +25,7 @@ void SoundController::playSound(const SoundTag& soundTag, const std::string& fil
 }
 
 void SoundController::pauseSound(const SoundTag& soundTag) {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -32,7 +35,7 @@ void SoundController::pauseSound(const SoundTag& soundTag) {
 }
 
 void SoundController::stopSound(const SoundTag& soundTag) {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -43,7 +46,7 @@ void SoundController::stopSound(const SoundTag& soundTag) {
 }
 
 sf::Sound::Status SoundController::getStatus(const SoundTag& soundTag) {
-    if(_instance == nullptr) {
+    if(!_validInstance) {
         return sf::Sound::Status::Stopped;
     }
 
@@ -56,11 +59,13 @@ sf::Sound::Status SoundController::getStatus(const SoundTag& soundTag) {
 }
 
 void SoundController::free() {
+    if(_validInstance) {
         for(auto& [soundTag, sound] : _instance->_sounds) {
             sound.stop();
         }
+    }
 
     _instance->_sounds.clear();
+    _validInstance = false;
     delete _instance;
-    _instance = nullptr;
 }

engine/SoundController.h

@@ -26,6 +26,7 @@ private:
     std::map<SoundTag, sf::Sound> _sounds;
 
     static SoundController* _instance;
+    static bool _validInstance;
 
     SoundController() = default;
 public:

engine/World.cpp

@@ -44,6 +44,7 @@ IntersectionInformation World::rayCast(const Vec3D& from, const Vec3D& to, const
         for (auto& escapeTag : tagsToSkip) {
             if (name.str().find(escapeTag) != std::string::npos) {
                 escapeThisBody = true;
+                break;
             }
         }
         if(escapeThisBody) {
@@ -51,7 +52,7 @@ IntersectionInformation World::rayCast(const Vec3D& from, const Vec3D& to, const
         }
 
         for(auto& tri : body->triangles()) {
-            Triangle tri_translated(tri[0] + body->position().makePoint4D(), tri[1] + body->position().makePoint4D(), tri[2] + body->position().makePoint4D());
+            Triangle tri_translated(body->model()*tri[0] + body->position().makePoint4D(), body->model()*tri[1] + body->position().makePoint4D(), body->model()*tri[2] + body->position().makePoint4D());
 
             Plane plane(tri_translated);
             auto intersection = plane.intersection(from, to);

engine/animation/Timeline.cpp

@@ -7,13 +7,15 @@
 #include "Timeline.h"
 
 Timeline* Timeline::_instance = nullptr;
+bool Timeline::_validInstance = false;
 
 void Timeline::init() {
     _instance = new Timeline();
+    _validInstance = true;
 }
 
 void Timeline::animate(const AnimationListTag& listName, Animation* anim) {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -21,7 +23,7 @@ void Timeline::animate(const AnimationListTag& listName, Animation* anim) {
 }
 
 void Timeline::deleteAllAnimations() {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -36,7 +38,7 @@ void Timeline::deleteAllAnimations() {
 }
 
 void Timeline::deleteAnimationList(const AnimationListTag& listName) {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -45,7 +47,7 @@ void Timeline::deleteAnimationList(const AnimationListTag& listName) {
 }
 
 [[nodiscard]] bool Timeline::isInAnimList(const AnimationListTag& listName) {
-    if(!_instance) {
+    if(!_validInstance) {
         return false;
     }
 
@@ -53,7 +55,7 @@ void Timeline::deleteAnimationList(const AnimationListTag& listName) {
 }
 
 void Timeline::update() {
-    if(!_instance) {
+    if(!_validInstance) {
         return;
     }
 
@@ -85,7 +87,7 @@ void Timeline::update() {
 
 void Timeline::free() {
     Timeline::deleteAllAnimations();
+    _validInstance = false;
 
     delete _instance;
-    _instance = nullptr;
 }

engine/animation/Timeline.h

@@ -25,6 +25,7 @@ private:
     std::map<AnimationListTag, std::list<Animation*>> _animations;
 
     static Timeline* _instance;
+    static bool _validInstance;
 
     Timeline() = default;
 public:

engine/physics/RigidBody.cpp

@@ -20,7 +20,7 @@ Vec3D RigidBody::_findFurthestPoint(const Vec3D& direction) {
 
     for(auto& tri : triangles()){
         for(int i = 0; i < 3; i++){
-            Vec3D point = Vec3D(tri[i]) + position();
+            Vec3D point = model()*Vec3D(tri[i]) + position();
 
             double distance = point.dot(direction.normalized());
             if(distance > maxDistance) {

engine/physics/RigidBody.h

@@ -56,6 +56,7 @@ protected:
 
 public:
     explicit RigidBody(ObjectNameTag nameTag) : Mesh(std::move(nameTag)) {};
+    explicit RigidBody(const RigidBody& rigidBody) = default;
     explicit RigidBody(const Mesh& mesh);
     RigidBody(ObjectNameTag nameTag, const std::string& filename, const Vec3D& scale = Vec3D{1, 1, 1});
 

engine/utils/Time.cpp

@@ -8,28 +8,33 @@
 using namespace std::chrono;
 
 Time* Time::_instance = nullptr;
+bool Time::_validInstance = false;
 
 void Time::init() {
     _instance = new Time();
+    _validInstance = true;
 }
 
 double Time::time() {
-    if(!_instance)
+    if(!_validInstance) {
         return 0;
+    }
 
     return _instance->_time;
 }
 
 double Time::deltaTime() {
-    if(!_instance)
+    if(!_validInstance) {
         return 0;
+    }
 
     return _instance->_deltaTime;
 }
 
 void Time::update() {
-    if(!_instance)
+    if(!_validInstance) {
         return;
+    }
 
     high_resolution_clock::time_point t = high_resolution_clock::now();
 
@@ -53,15 +58,14 @@ void Time::update() {
 }
 
 int Time::fps() {
-    if(!_instance)
+    if(!_validInstance) {
         return 0;
+    }
     // Cast is faster than floor and has the same behavior for positive numbers
     return static_cast<int>(_instance->_lastFps);
 }
 
 void Time::free() {
-    Time* t = _instance;
+    _validInstance = false;
-
     delete _instance;
-    _instance = nullptr;
 }

engine/utils/Time.h

@@ -24,6 +24,7 @@ private:
     double _deltaTime = 0;
 
     static Time* _instance;
+    static bool _validInstance;
 
     Time() = default;
 

weapon/Weapon.cpp

@@ -82,7 +82,7 @@ std::map<ObjectNameTag, double> Weapon::addTrace(std::function<IntersectionInfor
     }
 
     // add trace line
-    Vec3D lineFrom = position() + Vec3D(triangles().back()[0]);
+    Vec3D lineFrom = position() + model()*Vec3D(triangles().back()[0]);
     Vec3D lineTo = rayCast.intersected ? rayCast.pointOfIntersection : position() + -lookAt() * ShooterConsts::FIRE_DISTANCE + randV;
     _addTraceCallBack(lineFrom, lineTo);