code refactoring

CMakeLists.txt

@@ -102,7 +102,7 @@ add_executable(shooter
         engine/animation/AAttractToPoint.h
         engine/animation/ARotateRelativePoint.h
         engine/animation/ARotateLeft.h
-        )
+        engine/animation/Interpolation.cpp engine/animation/Animations.h)
 
 if(APPLE OR UNIX)
     include_directories(/usr/local/include)

Player.cpp

@@ -7,18 +7,14 @@
 #include <utility>
 #include "engine/Screen.h"
 #include "engine/utils/Log.h"
+#include "engine/animation/Animations.h"
 
-#include "engine/animation/Timeline.h"
+Player::Player(ObjectNameTag name, const std::string &filename, const Vec3D &scale) : RigidBody(std::move(name), filename, scale) {
-#include "engine/animation/ARotateLeft.h"
-
-Player::Player(ObjectNameTag name, const std::string &filename, const Vec3D &scale) : RigidBody(std::move(name), filename,scale) {
     setAcceleration(Vec3D{0, -ShooterConsts::GRAVITY, 0});
     setCollision(true);
     setVisible(false);
-    setSimpleHitBox(true);
 
-    setCollisionCallBack(
+    setCollisionCallBack([this](const ObjectNameTag &tag, std::shared_ptr<RigidBody> obj) { collisionWithObject(tag, obj); });
-            [this](const ObjectNameTag &tag, std::shared_ptr<RigidBody> obj) { collisionWithObject(tag, obj); });
 }
 
 void Player::rotateWeaponsRelativePoint(const Vec3D &point4D, const Vec3D &v, double val) {
@@ -68,7 +64,7 @@ void Player::addWeapon(std::shared_ptr<Weapon> weapon) {
 
     for (auto &w : _weapons) {
         if (w->name() == weapon->name()) {
-            w->addAmmo(w->initialPack());
+            w->addAPack();
             return;
         }
     }
@@ -82,12 +78,12 @@ void Player::addWeapon(std::shared_ptr<Weapon> weapon) {
 
     // add animation of reloading
     _weapons.back()->setReloadCallBack([this]() {
-        Timeline::animate(AnimationListTag("reload_weapon"),
+        Timeline::addAnimation<ARotateLeft>(AnimationListTag("reload_weapon"),
-                          std::make_shared<ARotateLeft>(_weapons[_selectedWeapon],
+                                            _weapons[_selectedWeapon],
-                                                        -4 * Consts::PI,
+                                            -4 * Consts::PI,
-                                                        _weapons[_selectedWeapon]->reloadTime()/2,
+                                            _weapons[_selectedWeapon]->reloadTime() / 2,
-                                                        Animation::LoopOut::None,
+                                            Animation::LoopOut::None,
-                                                        Animation::InterpolationType::Cos));
+                                            Animation::InterpolationType::Cos);
     });
 
     // add call back function to create fire traces

PlayerController.cpp

@@ -4,11 +4,8 @@
 
 #include "PlayerController.h"
 #include "engine/utils/Log.h"
-#include "engine/animation/AWait.h"
-#include "engine/animation/ATranslate.h"
-#include "engine/animation/ATranslateToPoint.h"
-#include "engine/animation/Timeline.h"
 #include "ShooterConsts.h"
+#include "engine/animation/Animations.h"
 
 PlayerController::PlayerController(std::shared_ptr<Player> player,
                                    std::shared_ptr<Keyboard> keyboard,
@@ -46,43 +43,50 @@ void PlayerController::update() {
     std::shared_ptr<Object> camera = _player->attached(ObjectNameTag("Camera"));
     if (camera != nullptr && _inRunning && _player->inCollision()) {
         if (!Timeline::isInAnimList(AnimationListTag("camera_hor_oscil"))) {
-            Timeline::animate(AnimationListTag("camera_hor_oscil"),
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_hor_oscil"),
-                              std::make_shared<ATranslate>(camera, -camera->left() / 6, 0.3, Animation::LoopOut::None,
+                                               camera, -camera->left() / 6, 0.3,
-                                                           Animation::InterpolationType::Cos));
+                                               Animation::LoopOut::None,
-            Timeline::animate(AnimationListTag("camera_hor_oscil"), std::make_shared<AWait>(0));
+                                               Animation::InterpolationType::Cos);
-            Timeline::animate(AnimationListTag("camera_hor_oscil"),
+            Timeline::addAnimation<AWait>(AnimationListTag("camera_hor_oscil"), 0);
-                              std::make_shared<ATranslate>(camera, camera->left() / 6, 0.3, Animation::LoopOut::None,
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_hor_oscil"),
-                                                           Animation::InterpolationType::Cos));
+                                               camera, camera->left() / 6, 0.3,
+                                               Animation::LoopOut::None,
+                                               Animation::InterpolationType::Cos);
 
-            Timeline::animate(AnimationListTag("camera_vert_oscil"),
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_vert_oscil"),
-                              std::make_shared<ATranslate>(camera, -Vec3D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None,
+                                               camera, -Vec3D{0, 1, 0} / 12, 0.15,
-                                                           Animation::InterpolationType::Cos));
+                                               Animation::LoopOut::None,
-            Timeline::animate(AnimationListTag("camera_vert_oscil"), std::make_shared<AWait>(0));
+                                               Animation::InterpolationType::Cos);
-            Timeline::animate(AnimationListTag("camera_vert_oscil"),
+            Timeline::addAnimation<AWait>(AnimationListTag("camera_vert_oscil"), 0);
-                              std::make_shared<ATranslate>(camera, Vec3D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None,
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_vert_oscil"),
-                                                           Animation::InterpolationType::Cos));
+                                               camera, Vec3D{0, 1, 0} / 12, 0.15,
-            Timeline::animate(AnimationListTag("camera_vert_oscil"), std::make_shared<AWait>(0));
+                                               Animation::LoopOut::None,
-            Timeline::animate(AnimationListTag("camera_vert_oscil"),
+                                               Animation::InterpolationType::Cos);
-                              std::make_shared<ATranslate>(camera, -Vec3D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None,
+            Timeline::addAnimation<AWait>(AnimationListTag("camera_vert_oscil"), 0);
-                                                           Animation::InterpolationType::Cos));
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_vert_oscil"),
-            Timeline::animate(AnimationListTag("camera_vert_oscil"), std::make_shared<AWait>(0));
+                                               camera, -Vec3D{0, 1, 0} / 12, 0.15,
-            Timeline::animate(AnimationListTag("camera_vert_oscil"),
+                                               Animation::LoopOut::None,
-                              std::make_shared<ATranslate>(camera, Vec3D{0, 1, 0} / 12, 0.15, Animation::LoopOut::None,
+                                               Animation::InterpolationType::Cos);
-                                                           Animation::InterpolationType::Cos));
+            Timeline::addAnimation<AWait>(AnimationListTag("camera_vert_oscil"), 0);
+            Timeline::addAnimation<ATranslate>(AnimationListTag("camera_vert_oscil"),
+                                               camera, Vec3D{0, 1, 0} / 12, 0.15,
+                                               Animation::LoopOut::None,
+                                               Animation::InterpolationType::Cos);
 
-            Timeline::animate(AnimationListTag("camera_init"),
+            Timeline::addAnimation<ATranslateToPoint>(AnimationListTag("camera_init"),
-                              std::make_shared<ATranslateToPoint>(camera, _player->position() + Vec3D{0, 1.8, 0}, 0.3,
+                                                      camera, _player->position() + Vec3D{0, 1.8, 0},
-                                                                  Animation::LoopOut::None,
+                                                      0.3,
-                                                                  Animation::InterpolationType::Cos));
+                                                      Animation::LoopOut::None,
+                                                      Animation::InterpolationType::Cos);
         }
     } else if (camera != nullptr && inRunning_old && !_inRunning) {
         Timeline::deleteAnimationList(AnimationListTag("camera_hor_oscil"));
         Timeline::deleteAnimationList(AnimationListTag("camera_vert_oscil"));
         Timeline::deleteAnimationList(AnimationListTag("camera_init"));
-        Timeline::animate(AnimationListTag("camera_init"),
+        Timeline::addAnimation<ATranslateToPoint>(AnimationListTag("camera_init"),
-                          std::make_shared<ATranslateToPoint>(camera, _player->position() + Vec3D{0, 1.8, 0}, 0.15,
+                               camera, _player->position() + Vec3D{0, 1.8, 0}, 0.15,
-                                                              Animation::LoopOut::None,
+                               Animation::LoopOut::None,
-                                                              Animation::InterpolationType::Cos));
+                               Animation::InterpolationType::Cos);
     }
 
     // Left and right

Shooter.cpp

@@ -5,17 +5,9 @@
 #include "Shooter.h"
 #include <fstream>
 #include <utility>
-#include "engine/animation/AColor.h"
+#include "engine/animation/Animations.h"
-#include "engine/animation/AFunction.h"
-#include "engine/animation/ARotate.h"
-#include "engine/animation/Timeline.h"
 #include "ShooterConsts.h"
 #include "engine/SoundController.h"
-#include "engine/animation/AAttractToPoint.h"
-#include "engine/animation/ARotateRelativePoint.h"
-#include "engine/animation/ATranslateToPoint.h"
-#include "engine/animation/AWait.h"
-#include "engine/animation/ATranslate.h"
 
 using namespace std;
 
@@ -199,7 +191,8 @@ void Shooter::drawStatsTable() {
 
     screen->drawText(client->lastEvent(), Vec2D{10, 10}, 25, sf::Color(0, 0, 0, 100));
 
-    vector<shared_ptr<Player>> allPlayers;
+    vector<shared_ptr < Player>>
+    allPlayers;
     allPlayers.push_back(player);
     for (auto&[playerId, player] : client->players())
         allPlayers.push_back(player);
@@ -276,8 +269,8 @@ void Shooter::spawnPlayer(sf::Uint16 id) {
     world->body(ObjectNameTag(name + "_foot_2"))->translate(Vec3D{0.25, 0, 0});
     newPlayer->attach(world->body(ObjectNameTag(name + "_foot_2")));
 
-    int colorBodyNum = static_cast<int> (static_cast<double>((rand()-1)) / RAND_MAX * 5.0);
+    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);
+    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]);
@@ -301,11 +294,11 @@ void Shooter::addFireTrace(const Vec3D &from, const Vec3D &to) {
     world->addBody(std::make_shared<RigidBody>(Mesh::LineTo(ObjectNameTag(traceName), from, to, 0.05)));
     world->body(ObjectNameTag(traceName))->setCollider(false);
 
-    Timeline::animate(AnimationListTag(traceName + "_fadeOut"),
+    Timeline::addAnimation<AColor>(AnimationListTag(traceName + "_fadeOut"), world->body(ObjectNameTag(traceName)),
-                      std::make_shared<AColor>(world->body(ObjectNameTag(traceName)), sf::Color{150, 150, 150, 0}));
+                                   sf::Color{150, 150, 150, 0});
-    Timeline::animate(AnimationListTag(traceName + "_delete"),
+    Timeline::addAnimation<AFunction>(AnimationListTag(traceName + "_delete"),
-                      std::make_shared<AFunction>([this, traceName]() { removeFireTrace(ObjectNameTag(traceName)); }, 1,
+                                      [this, traceName]() { removeFireTrace(ObjectNameTag(traceName)); }, 1,
-                                                  1));
+                                      1);
 }
 
 void Shooter::removeFireTrace(const ObjectNameTag &traceName) {
@@ -320,11 +313,12 @@ void Shooter::addBonus(const string &bonusName, const Vec3D &position) {
     world->addBody(std::make_shared<RigidBody>(ObjectNameTag(bonusName), "obj/" + name + ".obj", Vec3D{3, 3, 3}));
     world->body(ObjectNameTag(bonusName))->translateToPoint(position);
     world->body(ObjectNameTag(bonusName))->setCollider(false);
-    world->body(ObjectNameTag(bonusName))->setSimpleHitBox(true);
     world->body(ObjectNameTag(bonusName))->setTrigger(true);
-    Timeline::animate(AnimationListTag(bonusName + "_rotation"),
+    Timeline::addAnimation<ARotate>(AnimationListTag(bonusName + "_rotation"),
-                      std::make_shared<ARotate>(world->body(ObjectNameTag(bonusName)), Vec3D{0, 2 * Consts::PI, 0}, 4,
+                                    world->body(ObjectNameTag(bonusName)),
-                                                Animation::LoopOut::Continue, Animation::InterpolationType::Linear));
+                                    Vec3D{0, 2 * Consts::PI, 0}, 4,
+                                    Animation::LoopOut::Continue,
+                                    Animation::InterpolationType::Linear);
 }
 
 void Shooter::removeBonus(const ObjectNameTag &bonusName) {

ShooterClient.cpp

@@ -8,13 +8,7 @@
 #include "engine/utils/Log.h"
 #include "engine/animation/Timeline.h"
 #include "ShooterMsgType.h"
-
+#include "engine/animation/Animations.h"
-#include "engine/animation/AAttractToPoint.h"
-#include "engine/animation/ARotateRelativePoint.h"
-#include "engine/animation/ATranslateToPoint.h"
-#include "engine/animation/AWait.h"
-#include "engine/animation/AFunction.h"
-#include "engine/animation/ARotateLeft.h"
 
 void ShooterClient::updatePacket() {
     sf::Packet packet;
@@ -74,19 +68,32 @@ void ShooterClient::processUpdate(sf::Packet &packet) {
                 weapon->rotateLeft(buf[5] - _players[targetId]->headAngle());
             }
 
-            if(isAnimate) {
+            if (isAnimate) {
-                if(foot1 != nullptr && foot2 != nullptr && !Timeline::isInAnimList(AnimationListTag(name + "_foot1_rotation"))) {
+                if (foot1 != nullptr && foot2 != nullptr &&
-                    Timeline::animate(AnimationListTag(name + "_foot1_rotation"), std::make_shared<ARotateLeft>(foot1, 0.6, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                    !Timeline::isInAnimList(AnimationListTag(name + "_foot1_rotation"))) {
-                    Timeline::animate(AnimationListTag(name + "_foot1_rotation"), std::make_shared<AWait>(0));
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot1_rotation"),
-                    Timeline::animate(AnimationListTag(name + "_foot1_rotation"), std::make_shared<ARotateLeft>(foot1, -1.2, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                                                        foot1, 0.6, 0.2, Animation::LoopOut::None,
-                    Timeline::animate(AnimationListTag(name + "_foot1_rotation"), std::make_shared<AWait>(0));
+                                                        Animation::InterpolationType::Linear);
-                    Timeline::animate(AnimationListTag(name + "_foot1_rotation"), std::make_shared<ARotateLeft>(foot1, 0.6, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                    Timeline::addAnimation<AWait>(AnimationListTag(name + "_foot1_rotation"), 0);
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot1_rotation"),
+                                                        foot1, -1.2, 0.2, Animation::LoopOut::None,
+                                                        Animation::InterpolationType::Linear);
+                    Timeline::addAnimation<AWait>(AnimationListTag(name + "_foot1_rotation"), 0);
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot1_rotation"),
+                                                        foot1, 0.6, 0.2, Animation::LoopOut::None,
+                                                        Animation::InterpolationType::Linear);
 
-                    Timeline::animate(AnimationListTag(name + "_foot2_rotation"), std::make_shared<ARotateLeft>(foot2, -0.6, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot2_rotation"),
-                    Timeline::animate(AnimationListTag(name + "_foot2_rotation"), std::make_shared<AWait>(0));
+                                                        foot2, -0.6, 0.2, Animation::LoopOut::None,
-                    Timeline::animate(AnimationListTag(name + "_foot2_rotation"), std::make_shared<ARotateLeft>(foot2, 1.2, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                                                        Animation::InterpolationType::Linear);
-                    Timeline::animate(AnimationListTag(name + "_foot2_rotation"), std::make_shared<AWait>(0));
+                    Timeline::addAnimation<AWait>(AnimationListTag(name + "_foot2_rotation"), 0);
-                    Timeline::animate(AnimationListTag(name + "_foot2_rotation"), std::make_shared<ARotateLeft>(foot2, -0.6, 0.2, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot2_rotation"),
+                                                        foot2, 1.2, 0.2, Animation::LoopOut::None,
+                                                        Animation::InterpolationType::Linear);
+                    Timeline::addAnimation<AWait>(AnimationListTag(name + "_foot2_rotation"), 0);
+                    Timeline::addAnimation<ARotateLeft>(AnimationListTag(name + "_foot2_rotation"),
+                                                        foot2, -0.6, 0.2, Animation::LoopOut::None,
+                                                        Animation::InterpolationType::Linear);
                 }
             }
 
@@ -141,7 +148,7 @@ void ShooterClient::processCustomPacket(sf::Packet &packet) {
                 _player->addDeath();
 
                 auto camera = _player->attached(ObjectNameTag("Camera"));
-                if(camera == nullptr) {
+                if (camera == nullptr) {
                     break;
                 }
 
@@ -150,14 +157,19 @@ void ShooterClient::processCustomPacket(sf::Packet &packet) {
                 camera->rotateLeft(-camera->angleLeftUpLookAt().x());
                 camera->transform(Matrix4x4::Rotation(-_player->angle()));
 
-                Timeline::animate(AnimationListTag("camera_anim"), std::make_shared<ATranslateToPoint>(camera, Vec3D(0, 30, -100)));
+                Timeline::addAnimation<ATranslateToPoint>(AnimationListTag("camera_anim"),
-                Timeline::animate(AnimationListTag("camera_anim"), std::make_shared<AWait>(0));
+                                                          camera, Vec3D(0, 30, -100));
-                Timeline::animate(AnimationListTag("camera_anim"), std::make_shared<ARotateRelativePoint>(camera, Vec3D(0), Vec3D{0, Consts::PI, 0}, 5, Animation::LoopOut::None, Animation::InterpolationType::Linear));
+                Timeline::addAnimation<AWait>(AnimationListTag("camera_anim"), 0);
-                Timeline::animate(AnimationListTag("camera_anim"), std::make_shared<AWait>(0));
+                Timeline::addAnimation<ARotateRelativePoint>(AnimationListTag("camera_anim"),
-                Timeline::animate(AnimationListTag("camera_anim"), std::make_shared<AFunction>([this, camera](){
+                                                             camera, Vec3D(0), Vec3D{0, Consts::PI, 0},
+                                                             5, Animation::LoopOut::None,
+                                                             Animation::InterpolationType::Linear);
+                Timeline::addAnimation<AWait>(AnimationListTag("camera_anim"), 0);
+                Timeline::addAnimation<AFunction>(AnimationListTag("camera_anim"), [this, camera]() {
                     // respawn
-                    _player->translateToPoint(Vec3D{50.0 * (-1 + 2.0 * (double) rand() / RAND_MAX), 30.0 * (double) rand() / RAND_MAX,
+                    _player->translateToPoint(
-                                                    50.0 * (-1 + 2.0 * (double) rand() / RAND_MAX)});
+                            Vec3D{50.0 * (-1 + 2.0 * (double) rand() / RAND_MAX), 30.0 * (double) rand() / RAND_MAX,
+                                  50.0 * (-1 + 2.0 * (double) rand() / RAND_MAX)});
                     _player->reInitWeapons();
                     _player->setFullAbility();
 
@@ -167,7 +179,7 @@ void ShooterClient::processCustomPacket(sf::Packet &packet) {
                     camera->translateToPoint(_player->position() + Vec3D{0, 1.8, 0});
                     _player->attach(camera);
 
-                }, 1, 0.1));
+                }, 1, 0.1);
 
 
                 SoundController::playSound(SoundTag("death"), ShooterConsts::DEATH_SOUND);

engine/Consts.h

@@ -11,7 +11,7 @@
 
 namespace Consts {
     const int STANDARD_SCREEN_WIDTH = 1920;
-    const int STANDARD_SCREEN_HEIGHT = 1920;
+    const int STANDARD_SCREEN_HEIGHT = 1080;
     const sf::Color BACKGROUND_COLOR = sf::Color(255, 255, 255);
     const std::string PROJECT_NAME = "engine";
     const bool USE_LOG_FILE = true;

engine/Mesh.cpp

@@ -39,10 +39,6 @@ Mesh::Mesh(ObjectNameTag nameTag, const std::string &filename, const Vec3D &scal
 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::setColor(const sf::Color &c) {
     _color = c;
 
@@ -107,7 +103,6 @@ void Mesh::setTriangles(vector<Triangle>&& t) {
 }
 
 Mesh::~Mesh() {
-    _tris.clear();
     delete[] _geometry;
 }
 

engine/Mesh.h

@@ -54,8 +54,6 @@ public:
 
     ~Mesh() override;
 
-    Mesh static Obj(ObjectNameTag nameTag, const std::string &filename);
-
     Mesh static LineTo(ObjectNameTag nameTag, const Vec3D &from, const Vec3D &to, double line_width = 0.1,
                        const sf::Color &color = {150, 150, 150, 100});
 

engine/Object.cpp

@@ -7,6 +7,13 @@
 #include "Object.h"
 #include "Matrix4x4.h"
 
+bool ObjectNameTag::contains(const ObjectNameTag &nameTag) const {
+    if(_name.find(nameTag.str()) != std::string::npos) {
+        return true;
+    }
+    return false;
+}
+
 void Object::transform(const Matrix4x4 &t) {
     _transformMatrix = t * _transformMatrix;
 

engine/Object.h

@@ -23,10 +23,10 @@ public:
     [[nodiscard]] std::string str() const { return _name; }
 
     bool operator==(const ObjectNameTag &tag) const { return _name == tag._name; }
-
     bool operator!=(const ObjectNameTag &tag) const { return _name != tag._name; }
-
     bool operator<(const ObjectNameTag &tag) const { return _name < tag._name; }
+
+    [[nodiscard]] bool contains(const ObjectNameTag& nameTag) const;
 };
 
 class Object {
@@ -52,7 +52,7 @@ private:
 public:
     explicit Object(ObjectNameTag nameTag) : _nameTag(std::move(nameTag)) {};
 
-    Object(const Object &object) : _nameTag(object.name()), _transformMatrix(object.model()) {};
+    Object(const Object &object) = default;
 
     // TODO: implement rotations using quaternions (?)
     void transform(const Matrix4x4 &t);

engine/ResourceManager.cpp

@@ -11,78 +11,16 @@
 #include "utils/Log.h"
 
 ResourceManager *ResourceManager::_instance = nullptr;
-bool ResourceManager::_validInstance = false;
-
 
 void ResourceManager::init() {
+    delete _instance;
     _instance = new ResourceManager();
-    _validInstance = true;
 
     Log::log("ResourceManager::init(): resource manager was initialized");
 }
 
-void ResourceManager::unloadTextures() {
-    int texturesCounter = _instance->_textures.size();
-    for (auto &_texture : _instance->_textures) {
-        _texture.second.reset();
-    }
-    _instance->_textures.clear();
-
-    Log::log("ResourceManager::unloadTextures(): all " + std::to_string(texturesCounter) + " textures was unloaded");
-
-}
-
-void ResourceManager::unloadSoundBuffers() {
-    int soundBuffersCounter = _instance->_soundBuffers.size();
-    for (auto &_soundBuffer : _instance->_soundBuffers) {
-        _soundBuffer.second.reset();
-    }
-    _instance->_soundBuffers.clear();
-
-    Log::log("ResourceManager::unloadSoundBuffers(): all " + std::to_string(soundBuffersCounter) +
-             " soundBuffers was unloaded");
-}
-
-void ResourceManager::unloadFonts() {
-    int fontsCounter = _instance->_fonts.size();
-    for (auto &_font : _instance->_fonts) {
-        _font.second.reset();
-    }
-    _instance->_fonts.clear();
-
-    Log::log("ResourceManager::unloadFonts(): all " + std::to_string(fontsCounter) + " fonts was unloaded");
-}
-
-void ResourceManager::unloadObjects() {
-    int objCounter = _instance->_objects.size();
-    _instance->_objects.clear();
-
-    Log::log("ResourceManager::unloadObjects(): all " + std::to_string(objCounter) + " objects was unloaded");
-}
-
-void ResourceManager::unloadAllResources() {
-    if (!_validInstance) {
-        return;
-    }
-
-    unloadTextures();
-    unloadSoundBuffers();
-    unloadFonts();
-    unloadObjects();
-
-    Log::log("ResourceManager::unloadAllResources(): all resources was unloaded");
-}
-
-void ResourceManager::free() {
-    unloadAllResources();
-    _validInstance = false;
-    delete _instance;
-
-    Log::log("ResourceManager::free(): pointer to 'ResourceManager' was freed");
-}
-
 std::shared_ptr<sf::Texture> ResourceManager::loadTexture(const std::string &filename) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return nullptr;
     }
 
@@ -109,7 +47,7 @@ std::shared_ptr<sf::Texture> ResourceManager::loadTexture(const std::string &fil
 }
 
 std::shared_ptr<sf::SoundBuffer> ResourceManager::loadSoundBuffer(const std::string &filename) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return nullptr;
     }
 
@@ -135,7 +73,7 @@ std::shared_ptr<sf::SoundBuffer> ResourceManager::loadSoundBuffer(const std::str
 }
 
 std::shared_ptr<sf::Font> ResourceManager::loadFont(const std::string &filename) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return nullptr;
     }
 
@@ -165,7 +103,7 @@ std::vector<std::shared_ptr<Mesh>> ResourceManager::loadObjects(const std::strin
     std::vector<std::shared_ptr<Mesh>> objects{};
     std::map<std::string, sf::Color> maters{};
 
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return objects;
     }
 
@@ -241,3 +179,75 @@ std::vector<std::shared_ptr<Mesh>> ResourceManager::loadObjects(const std::strin
 
     return objects;
 }
+
+void ResourceManager::unloadTextures() {
+    if (_instance == nullptr) {
+        return;
+    }
+
+    int texturesCounter = _instance->_textures.size();
+    for (auto &_texture : _instance->_textures) {
+        _texture.second.reset();
+    }
+    _instance->_textures.clear();
+
+    Log::log("ResourceManager::unloadTextures(): all " + std::to_string(texturesCounter) + " textures was unloaded");
+}
+
+void ResourceManager::unloadSoundBuffers() {
+    if (_instance == nullptr) {
+        return;
+    }
+
+    int soundBuffersCounter = _instance->_soundBuffers.size();
+    for (auto &_soundBuffer : _instance->_soundBuffers) {
+        _soundBuffer.second.reset();
+    }
+    _instance->_soundBuffers.clear();
+
+    Log::log("ResourceManager::unloadSoundBuffers(): all " + std::to_string(soundBuffersCounter) +
+             " soundBuffers was unloaded");
+}
+
+void ResourceManager::unloadFonts() {
+    if (_instance == nullptr) {
+        return;
+    }
+
+    int fontsCounter = _instance->_fonts.size();
+    for (auto &_font : _instance->_fonts) {
+        _font.second.reset();
+    }
+    _instance->_fonts.clear();
+
+    Log::log("ResourceManager::unloadFonts(): all " + std::to_string(fontsCounter) + " fonts was unloaded");
+}
+
+void ResourceManager::unloadObjects() {
+    if (_instance == nullptr) {
+        return;
+    }
+
+    int objCounter = _instance->_objects.size();
+    _instance->_objects.clear();
+
+    Log::log("ResourceManager::unloadObjects(): all " + std::to_string(objCounter) + " objects was unloaded");
+}
+
+void ResourceManager::unloadAllResources() {
+    unloadTextures();
+    unloadSoundBuffers();
+    unloadFonts();
+    unloadObjects();
+
+    Log::log("ResourceManager::unloadAllResources(): all resources was unloaded");
+}
+
+void ResourceManager::free() {
+    unloadAllResources();
+
+    delete _instance;
+    _instance = nullptr;
+
+    Log::log("ResourceManager::free(): pointer to 'ResourceManager' was freed");
+}

engine/ResourceManager.h

@@ -20,7 +20,6 @@ private:
     std::map<std::string, std::vector<std::shared_ptr<Mesh>>> _objects;
 
     static ResourceManager *_instance;
-    static bool _validInstance;
 
     ResourceManager() = default;
 

engine/SoundController.cpp

@@ -7,18 +7,17 @@
 #include "utils/Log.h"
 
 SoundController *SoundController::_instance = nullptr;
-bool SoundController::_validInstance = false;
 
 
 void SoundController::init() {
+    delete _instance;
     _instance = new SoundController();
-    _validInstance = true;
 
     Log::log("SoundController::init(): sound controller was initialized");
 }
 
 void SoundController::playSound(const SoundTag &soundTag, const std::string &filename) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
@@ -26,36 +25,30 @@ void SoundController::playSound(const SoundTag &soundTag, const std::string &fil
         _instance->_sounds.emplace(soundTag, sf::Sound(*ResourceManager::loadSoundBuffer(filename)));
     }
     _instance->_sounds[soundTag].play();
-
-    Log::log("SoundController::playSound(): play sound '" + soundTag.str() + "'");
 }
 
 void SoundController::pauseSound(const SoundTag &soundTag) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
     if (_instance->_sounds.count(soundTag) > 0) {
         _instance->_sounds[soundTag].pause();
     }
-
-    Log::log("SoundController::pauseSound(): sound '" + soundTag.str() + "' was paused");
 }
 
 void SoundController::stopSound(const SoundTag &soundTag) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
     if (_instance->_sounds.count(soundTag) > 0) {
         _instance->_sounds[soundTag].stop();
     }
-
-    Log::log("SoundController::stopSound(): sound '" + soundTag.str() + "' was stopped");
 }
 
 sf::Sound::Status SoundController::getStatus(const SoundTag &soundTag) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return sf::Sound::Status::Stopped;
     }
 
@@ -67,15 +60,15 @@ sf::Sound::Status SoundController::getStatus(const SoundTag &soundTag) {
 }
 
 void SoundController::free() {
-    if (_validInstance) {
+    if (_instance != nullptr) {
         for (auto&[soundTag, sound] : _instance->_sounds) {
             stopSound(soundTag);
         }
         _instance->_sounds.clear();
     }
 
-    _validInstance = false;
     delete _instance;
+    _instance = nullptr;
 
     Log::log("SoundController::free(): pointer to 'SoundController' was freed");
 }

engine/SoundController.h

@@ -30,7 +30,6 @@ private:
     std::map<SoundTag, sf::Sound> _sounds;
 
     static SoundController *_instance;
-    static bool _validInstance;
 
     SoundController() = default;
 

engine/World.cpp

@@ -19,7 +19,7 @@ void World::addBody(std::shared_ptr<RigidBody> body) {
 }
 
 void World::loadBody(const ObjectNameTag &tag, const string &filename, const Vec3D &scale) {
-    _objects.emplace(tag, std::make_shared<RigidBody>(Mesh(tag, filename, scale)));
+    _objects.emplace(tag, std::make_shared<RigidBody>(tag, filename, scale));
     Log::log("World::loadBody(): inserted body from " + filename + " with title '" + tag.str() + "' with " +
              std::to_string(_objects[tag]->triangles().size()) + " tris.");
 }
@@ -45,7 +45,7 @@ IntersectionInformation World::rayCast(const Vec3D &from, const Vec3D &to, const
 
         bool escapeThisBody = false;
         for (auto &escapeTag : tagsToSkip) {
-            if (name.str().find(escapeTag) != std::string::npos) {
+            if (name.contains(ObjectNameTag(escapeTag))) {
                 escapeThisBody = true;
                 break;
             }
@@ -78,7 +78,7 @@ IntersectionInformation World::rayCast(const Vec3D &from, const Vec3D &to, const
 void World::loadMap(const std::string &filename, const Vec3D &scale) {
     auto objs = ResourceManager::loadObjects(filename);
     for (auto &i : objs) {
-        std::shared_ptr<RigidBody> obj = std::make_shared<RigidBody>(*i);
+        std::shared_ptr<RigidBody> obj = std::make_shared<RigidBody>(*i, false);
         addBody(obj);
         obj->scale(scale);
     }
@@ -122,9 +122,9 @@ void World::checkCollision(const ObjectNameTag &tag) {
 }
 
 void World::update() {
-    for (auto &m : _objects) {
+    for (auto &[nameTag, obj] : _objects) {
-        m.second->updatePhysicsState();
+        obj->updatePhysicsState();
-        checkCollision(m.first);
+        checkCollision(nameTag);
     }
 }
 

engine/World.h

@@ -23,28 +23,23 @@ struct IntersectionInformation final {
 class World final {
 private:
     std::map<ObjectNameTag, std::shared_ptr<RigidBody>> _objects;
-public:
-    World() = default;
 
     void checkCollision(const ObjectNameTag &tag);
+public:
+    World() = default;
 
     void update();
 
     void addBody(std::shared_ptr<RigidBody> mesh);
-
     std::shared_ptr<RigidBody> body(const ObjectNameTag &tag);
-
     void removeBody(const ObjectNameTag &tag);
-
     void loadBody(const ObjectNameTag &tag, const std::string &filename, const Vec3D &scale = Vec3D{1, 1, 1});
+    void loadMap(const std::string &filename, const Vec3D &scale = Vec3D{1, 1, 1});
 
     // std::string skipTags is a string that consist of all objects we want to skip in ray casting
     IntersectionInformation rayCast(const Vec3D &from, const Vec3D &to, const std::string &skipTags = "");
 
-    void loadMap(const std::string &filename, const Vec3D &scale = Vec3D{1, 1, 1});
-
     std::map<ObjectNameTag, std::shared_ptr<RigidBody>>::iterator begin() { return _objects.begin(); }
-
     std::map<ObjectNameTag, std::shared_ptr<RigidBody>>::iterator end() { return _objects.end(); }
 };
 

engine/animation/AAttractToPoint.h

@@ -15,12 +15,14 @@ private:
     const double _valueToAttract;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        _object.lock()->attractToPoint(_targetPoint, _valueToAttract * dprogress());
+        obj->attractToPoint(_targetPoint, _valueToAttract * dprogress());
     }
 
 public:

engine/animation/AColor.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_ACOLOR_H
 #define ENGINE_ACOLOR_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Mesh.h"
 
@@ -19,21 +17,23 @@ private:
     bool _started = false;
 
     void update() override {
-        if (_mesh.expired()) {
+        auto mesh = _mesh.lock();
+
+        if (mesh == nullptr) {
             stop();
             return;
         }
 
         if (!_started) {
             _started = true;
-            _startColor = _mesh.lock()->color();
+            _startColor = mesh->color();
         }
 
         Vec4D start(_startColor.r, _startColor.g, _startColor.b, _startColor.a);
         Vec4D end(_newColor.r, _newColor.g, _newColor.b, _newColor.a);
         Vec4D mid = start + (end - start) * progress();
 
-        _mesh.lock()->setColor(sf::Color(static_cast<sf::Uint8>(mid.x()), static_cast<sf::Uint8>(mid.y()),
+        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())));
     }
 
@@ -41,7 +41,7 @@ public:
     AColor(std::weak_ptr<Mesh> mesh, const sf::Color &color, double duration = 1, LoopOut looped = LoopOut::None,
            InterpolationType interpolationType = InterpolationType::Linear) : Animation(duration, looped,
                                                                                         interpolationType),
-                                                                              _mesh(std::move(mesh)), _newColor(color) {
+                                                                              _mesh(mesh), _newColor(color) {
     }
 };
 

engine/animation/AFunction.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_AFUNCTION_H
 #define ENGINE_AFUNCTION_H
 
-#include <utility>
-
 #include "Animation.h"
 
 class AFunction final : public Animation {

engine/animation/ARotate.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_AROTATE_H
 #define ENGINE_AROTATE_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Object.h"
 
@@ -16,12 +14,14 @@ private:
     const Vec3D _rotationValue;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        _object.lock()->rotate(_rotationValue * dprogress());
+        obj->rotate(_rotationValue * dprogress());
     }
 
 public:

engine/animation/ARotateLeft.h

@@ -5,8 +5,6 @@
 #ifndef SHOOTER_AROTATELEFT_H
 #define SHOOTER_AROTATELEFT_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Object.h"
 
@@ -16,12 +14,14 @@ private:
     const double _rotationValue;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        _object.lock()->rotateLeft(_rotationValue*dprogress());
+        obj->rotateLeft(_rotationValue*dprogress());
     }
 
 public:

engine/animation/ARotateRelativePoint.h

@@ -5,8 +5,6 @@
 #ifndef SHOOTER_AROTATERELATIVEPOINT_H
 #define SHOOTER_AROTATERELATIVEPOINT_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Object.h"
 
@@ -17,13 +15,14 @@ private:
     const Vec3D _rotationValue;
 
     void update() override {
+        auto obj = _object.lock();
 
-        if (_object.expired()) {
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        _object.lock()->rotateRelativePoint(_targetPoint, _rotationValue * dprogress());
+        obj->rotateRelativePoint(_targetPoint, _rotationValue * dprogress());
     }
 
 public:

engine/animation/AScale.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_ASCALE_H
 #define ENGINE_ASCALE_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../physics/RigidBody.h"
 
@@ -16,19 +14,21 @@ private:
     const Vec3D _scalingValue;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        auto object = _object.lock();
         std::vector<Triangle> newTriangles;
-        newTriangles.reserve(object->triangles().size());
+        newTriangles.reserve(obj->triangles().size());
-        for (auto &t : object->triangles()) {
+        for (auto &t : obj->triangles()) {
-            newTriangles.emplace_back(
+            newTriangles.emplace_back(t * Matrix4x4::Scale(Vec3D{1, 1, 1} +
-                    t * Matrix4x4::Scale(Vec3D{1, 1, 1} + (_scalingValue - Vec3D{1, 1, 1}) * progress()));
+                                    (_scalingValue - Vec3D{1, 1, 1}) * progress())
+                                    );
         }
-        object.lock()->setTriangles(std::move(newTriangles));
+        obj->setTriangles(std::move(newTriangles));
     }
 
 public:

engine/animation/ATranslate.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_ATRANSLATE_H
 #define ENGINE_ATRANSLATE_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Object.h"
 
@@ -16,19 +14,21 @@ private:
     const Vec3D _translationValue;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
 
-        _object.lock()->translate(_translationValue * dprogress());
+        obj->translate(_translationValue * dprogress());
     }
 
 public:
     ATranslate(std::weak_ptr<Object> object, const Vec3D &t, double duration = 1, LoopOut looped = LoopOut::None,
                InterpolationType interpolationType = InterpolationType::Bezier) : Animation(duration, looped,
                                                                                             interpolationType),
-                                                                                  _object(std::move(object)),
+                                                                                  _object(object),
                                                                                   _translationValue(t) {
     }
 };

engine/animation/ATranslateToPoint.h

@@ -5,8 +5,6 @@
 #ifndef ENGINE_ATRANSLATETOPOINT_H
 #define ENGINE_ATRANSLATETOPOINT_H
 
-#include <utility>
-
 #include "Animation.h"
 #include "../Object.h"
 
@@ -19,7 +17,9 @@ private:
     bool _started = false;
 
     void update() override {
-        if (_object.expired()) {
+        auto obj = _object.lock();
+
+        if (obj == nullptr) {
             stop();
             return;
         }
@@ -28,7 +28,7 @@ private:
             _started = true;
             _translationValue = _targetPoint - _object.lock()->position();
         }
-        _object.lock()->translate(_translationValue * dprogress());
+        obj->translate(_translationValue * dprogress());
     }
 
 public:

engine/animation/Animation.cpp

@@ -3,9 +3,11 @@
 //
 
 #include "Animation.h"
+#include "../Consts.h"
+#include "../utils/Time.h"
 
-Animation::Animation(double duration, Animation::LoopOut looped, Animation::InterpolationType intType, bool waitFor)
+Animation::Animation(double duration, Animation::LoopOut looped, Animation::InterpolationType intType, bool waitForFinish)
-        : _duration(duration), _looped(looped), _intType(intType), _waitFor(waitFor) {
+        : _duration(duration), _looped(looped), _intType(intType), _waitForFinish(waitForFinish) {
 }
 
 bool Animation::updateState() {

engine/animation/Animation.h

@@ -5,10 +5,7 @@
 #ifndef ENGINE_ANIMATION_H
 #define ENGINE_ANIMATION_H
 
-#include "../utils/Time.h"
-#include "../Triangle.h"
 #include "Interpolation.h"
-#include "../Vec2D.h"
 
 class Animation {
 public:
@@ -32,8 +29,9 @@ private:
     double _progress = 0;
     double _dprogress = 0;
 
-    // If '_waitFor' == true then we need to finish all animation before starting this one. (for example for a_wait() or a_scale())
+    // If '_waitForFinish' == true then we need to finish all animation before starting this one. (for example AWait)
-    const bool _waitFor = false;
+    // In addition new animations in particular animation list will be started only after finishing this animation.
+    const bool _waitForFinish = false;
     const double _duration = 0;
     const LoopOut _looped = LoopOut::None;
     const InterpolationType _intType = InterpolationType::Bezier;
@@ -41,22 +39,20 @@ private:
     // You should override this method for your particular animation
     virtual void update() = 0;
 
+protected:
+    [[nodiscard]] double progress() const { return _progress; }
+    [[nodiscard]] double dprogress() const { return _dprogress; }
+
+    void stop() { _finished = true; }
+
 public:
     Animation(double duration, LoopOut looped, InterpolationType intType, bool _waitFor = false);
 
     virtual ~Animation() = default;
 
-    [[nodiscard]] bool waitFor() const { return _waitFor; }
-
     bool updateState();
 
-    [[nodiscard]] double progress() const { return _progress; }
+    [[nodiscard]] bool isWaitingForFinish() const { return _waitForFinish; }
-
-    [[nodiscard]] double dprogress() const { return _dprogress; }
-
-    void stop() { _finished = true; }
-
-    [[nodiscard]] bool isFinished() const { return _finished; }
 };
 
 #endif //INC_3DZAVR_ANIMATION_H

engine/animation/Animations.h

@@ -0,0 +1,21 @@
+//
+// Created by Иван Ильин on 09.11.2021.
+//
+
+#ifndef SHOOTER_ANIMATIONS_H
+#define SHOOTER_ANIMATIONS_H
+
+#include "Timeline.h"
+
+#include "AAttractToPoint.h"
+#include "AColor.h"
+#include "AFunction.h"
+#include "ARotate.h"
+#include "ARotateLeft.h"
+#include "ARotateRelativePoint.h"
+#include "AScale.h"
+#include "ATranslate.h"
+#include "ATranslateToPoint.h"
+#include "AWait.h"
+
+#endif //SHOOTER_ANIMATIONS_H

engine/animation/Interpolation.cpp

@@ -0,0 +1,71 @@
+//
+// Created by Иван Ильин on 09.11.2021.
+//
+#include <cmath>
+
+#include "Interpolation.h"
+#include "../Consts.h"
+
+double Interpolation::Linear(double t) {
+    if (t < 0) {
+        t = -t;
+    }
+    int integer = static_cast<int>(t);
+
+    return (integer % 2) ? 1.0 - (t - integer) : (t - integer);
+}
+
+double Interpolation::Bezier(const Vec2D &p1, const Vec2D &p2, double t) {
+    // TODO: implement bezier curve without finding the root of equation
+    t = Interpolation::Linear(t);
+
+    double h = Consts::EPS;
+    double eps = Consts::EPS;
+
+    // We are trying to find 's' when px = t
+    auto f = [=](double s) {
+        return 3.0 * (1.0 - s) * (1.0 - s) * s * p1.x() + 3.0 * (1.0 - s) * s * s * p2.x() + s * s * s - t;
+    };
+    // Using found 's' we will calculate resulting py
+    auto py = [=](double s) {
+        return 3.0 * (1.0 - s) * (1.0 - s) * s * p1.y() + 3.0 * (1.0 - s) * s * s * p2.y() + s * s * s;
+    };
+
+    auto df = [=](double s) {
+        return (f(s + h) - f(s - h)) / (2.0 * h);
+    };
+
+    // Newton method
+    double s1 = 0.0, s2 = 0.5;
+    int i = 0;
+
+    while (std::abs(s1 - s2) > eps) {
+        s1 = s2;
+        s2 = s1 - f(s1) / df(s1);
+        i++;
+    }
+
+    return py(s1);
+}
+
+double Interpolation::Bouncing(double t) {
+    t = Interpolation::Linear(t);
+    return 0.5 * (1.0 / (1.0 + exp(10.0 * (-4.0 * t + 0.8))) +
+                  (1.0 + 2.5 * sin(50.0 * (t - 1.0 / 3.0)) * exp(-7.0 * t)) / (1.0 + exp(10.0 * (-15.0 * t + 3.1))));
+}
+
+double Interpolation::dLinear(double t, double dt) {
+    return ((int) trunc(t) % 2) ? -dt : dt;
+}
+
+double Interpolation::dCos(double t, double dt) {
+    return 0.5 * Consts::PI * sin(Consts::PI * t) * dt;
+}
+
+double Interpolation::dBezier(const Vec2D &p1, const Vec2D &p2, double t, double dt) {
+    return Interpolation::Bezier(p1, p2, t + dt) - Interpolation::Bezier(p1, p2, t);
+}
+
+double Interpolation::dBouncing(double t, double dt) {
+    return Bouncing(t + dt) - Bouncing(t);
+}

engine/animation/Interpolation.h

@@ -5,95 +5,22 @@
 #ifndef ENGINE_INTERPOLATION_H
 #define ENGINE_INTERPOLATION_H
 
-#include <cmath>
-
 #include "../Vec2D.h"
-#include "../Consts.h"
 
 namespace Interpolation {
-    static double Linear(double t);
+    double Linear(double t);
 
-    static double Cos(double t);
+    double Bezier(const Vec2D &p1, const Vec2D &p2, double t);
 
-    static double Bezier(const Vec2D &p1, const Vec2D &p2, double t);
+    double Bouncing(double t);
 
-    static double Bouncing(double t);
+    double dLinear(double t, double dt);
 
-    static double dLinear(double t, double dt);
+    double dCos(double t, double dt);
 
-    static double dCos(double t, double dt);
+    double dBezier(const Vec2D &p1, const Vec2D &p2, double t, double dt);
 
-    static double dBezier(const Vec2D &p1, const Vec2D &p2, double t, double dt);
+    double dBouncing(double t, double dt);
-
-    static double dBouncing(double t, double dt);
 };
 
-double Interpolation::Linear(double t) {
-    if (t < 0) {
-        t = -t;
-    }
-    int integer = static_cast<int>(t);
-
-    return (integer % 2) ? 1.0 - (t - integer) : (t - integer);
-}
-
-double Interpolation::Cos(double t) {
-    return 0.5 * (1 - cos(Consts::PI * Interpolation::Linear(t)));
-}
-
-double Interpolation::Bezier(const Vec2D &p1, const Vec2D &p2, double t) {
-    // TODO: implement bezier curve without finding the root of equation
-    t = Interpolation::Linear(t);
-
-    double h = Consts::EPS;
-    double eps = Consts::EPS;
-
-    // We are trying to find 's' when px = t
-    auto f = [=](double s) {
-        return 3.0 * (1.0 - s) * (1.0 - s) * s * p1.x() + 3.0 * (1.0 - s) * s * s * p2.x() + s * s * s - t;
-    };
-    // Using found 's' we will calculate resulting py
-    auto py = [=](double s) {
-        return 3.0 * (1.0 - s) * (1.0 - s) * s * p1.y() + 3.0 * (1.0 - s) * s * s * p2.y() + s * s * s;
-    };
-
-    auto df = [=](double s) {
-        return (f(s + h) - f(s - h)) / (2.0 * h);
-    };
-
-    // Newton method
-    double s1 = 0.0, s2 = 0.5;
-    int i = 0;
-
-    while (std::abs(s1 - s2) > eps) {
-        s1 = s2;
-        s2 = s1 - f(s1) / df(s1);
-        i++;
-    }
-
-    return py(s1);
-}
-
-double Interpolation::Bouncing(double t) {
-    t = Interpolation::Linear(t);
-    return 0.5 * (1.0 / (1.0 + exp(10.0 * (-4.0 * t + 0.8))) +
-                  (1.0 + 2.5 * sin(50.0 * (t - 1.0 / 3.0)) * exp(-7.0 * t)) / (1.0 + exp(10.0 * (-15.0 * t + 3.1))));
-}
-
-double Interpolation::dLinear(double t, double dt) {
-    return ((int) trunc(t) % 2) ? -dt : dt;
-}
-
-double Interpolation::dCos(double t, double dt) {
-    return 0.5 * Consts::PI * sin(Consts::PI * t) * dt;
-}
-
-double Interpolation::dBezier(const Vec2D &p1, const Vec2D &p2, double t, double dt) {
-    return Interpolation::Bezier(p1, p2, t + dt) - Interpolation::Bezier(p1, p2, t);
-}
-
-double Interpolation::dBouncing(double t, double dt) {
-    return Bouncing(t + dt) - Bouncing(t);
-}
-
 #endif //INC_3DZAVR_INTERPOLATION_H

engine/animation/Timeline.cpp

@@ -9,64 +9,52 @@
 #include "../utils/Log.h"
 
 Timeline *Timeline::_instance = nullptr;
-bool Timeline::_validInstance = false;
 
 void Timeline::init() {
+    delete _instance;
     _instance = new Timeline();
-    _validInstance = true;
 
     Log::log("Timeline::init(): animation timeline was initialized");
 }
 
-void Timeline::animate(const AnimationListTag &listName, std::shared_ptr<Animation> anim) {
-    if (!_validInstance) {
-        return;
-    }
-
-    _instance->_animations[listName].emplace_back(anim);
-
-    Log::log("Timeline::animate(): add animation in '" + listName.str() + "' list");
-}
-
 void Timeline::deleteAllAnimations() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
-    int animCounter = 0;
+    Log::log("Timeline::deleteAllAnimations(): all " + std::to_string(_instance->_animations.size()) + " list was deleted");
-
-    for (auto&[listName, animationList] : _instance->_animations) {
-        animCounter += animationList.size();
-        animationList.clear();
-    }
     _instance->_animations.clear();
-
-    Log::log("Timeline::deleteAllAnimations(): all " + std::to_string(animCounter) + " animations was deleted");
 }
 
 void Timeline::deleteAnimationList(const AnimationListTag &listName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
-    int animCounter = _instance->_animations[listName].size();
+    auto it = _instance->_animations.find(listName);
-    _instance->_animations[listName].clear();
-    _instance->_animations.erase(listName);
 
-    Log::log("Timeline::deleteAnimationList(): list '" + listName.str() + "' with " + std::to_string(animCounter) +
+    if(it != _instance->_animations.end()) {
-             " animations was deleted");
+        _instance->_animations.erase(it);
+    } else {
+        Log::log("Timeline::deleteAnimationList(): list '" + listName.str() + "' does not exist");
+    }
 }
 
 [[nodiscard]] bool Timeline::isInAnimList(const AnimationListTag &listName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return false;
     }
 
-    return !_instance->_animations[listName].empty();
+    auto it = _instance->_animations.find(listName);
+    if(it != _instance->_animations.end()) {
+        return !it->second.empty();
+    }
+
+    return false;
 }
 
 void Timeline::update() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
@@ -77,32 +65,33 @@ void Timeline::update() {
         }
         auto& animationList = iter->second;
         auto it = animationList.begin();
+
         // If it the front animation is 'a_wait()' we should wait until waiting time is over
 
-        if (it.operator*()->waitFor()) {
+        if ((*it)->isWaitingForFinish()) {
-            if (!it.operator*()->updateState()) {
+            if (!(*it)->updateState()) {
                 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())) {
+        while (!animationList.empty() && (it != animationList.end()) && (!(*it)->isWaitingForFinish())) {
-            if (!it.operator*()->updateState()) {
+            if (!(*it)->updateState()) {
                 animationList.erase(it++);
             } else {
-                it++;
+                ++it;
             }
         }
-        iter++;
+        ++iter;
     }
 }
 
 void Timeline::free() {
     Timeline::deleteAllAnimations();
-    _validInstance = false;
 
     delete _instance;
+    _instance = nullptr;
 
     Log::log("Timeline::free(): pointer to 'Timeline' was freed");
 }

engine/animation/Timeline.h

@@ -4,7 +4,10 @@
 
 #ifndef SHOOTER_TIMELINE_H
 #define SHOOTER_TIMELINE_H
+
 #include <memory>
+#include <string>
+#include <map>
 
 #include "Animation.h"
 
@@ -28,7 +31,6 @@ private:
     std::map<AnimationListTag, std::list<std::shared_ptr<Animation>>> _animations;
 
     static Timeline *_instance;
-    static bool _validInstance;
 
     Timeline() = default;
 
@@ -39,8 +41,6 @@ public:
 
     static void update();
 
-    static void animate(const AnimationListTag &listName, std::shared_ptr<Animation> anim);
-
     static void deleteAllAnimations();
 
     static void deleteAnimationList(const AnimationListTag &listName);
@@ -50,6 +50,15 @@ public:
     static void init();
 
     static void free();
+
+    template <typename T, typename... Arguments>
+    static void addAnimation(const AnimationListTag &listName, Arguments... args) {
+        if (_instance == nullptr) {
+            return;
+        }
+
+        _instance->_animations[listName].emplace_back(std::make_shared<T>(args...));
+    }
 };
 
 #endif //SHOOTER_TIMELINE_H

engine/gui/Button.h

@@ -5,10 +5,7 @@
 #ifndef ENGINE_BUTTON_H
 #define ENGINE_BUTTON_H
 
-#include <functional>
-
 #include <SFML/Graphics.hpp>
-#include <SFML/Audio.hpp>
 
 struct tPos final {
     const int tx;

engine/physics/HitBox.cpp

@@ -19,23 +19,15 @@ bool HitBox::Vec3DLess::operator()(const Vec3D& lhs, const Vec3D& rhs) const noe
         return false;
 }
 
-HitBox::HitBox(const Mesh& mesh) {
+HitBox::HitBox(const Mesh& mesh, bool useSimpleBox) {
-    // we dont need to add the same points in hit box
+    if (useSimpleBox) {
-    std::set<Vec3D, HitBox::Vec3DLess> points;
+        generateSimple(mesh);
-
+    } else {
-    for (const auto& t : mesh.triangles())
+        generateDetailed(mesh);
-        for (int i = 0; i < 3; i++)
+    }
-            points.insert(Vec3D(t[i]));
-
-    _hitBox.reserve(points.size());
-    for (const auto& it : points)
-        _hitBox.push_back(it);
-    _hitBox.shrink_to_fit();
 }
 
-HitBox HitBox::Box(const Mesh &mesh) {
+void HitBox::generateSimple(const Mesh &mesh) {
-    HitBox result;
-
     double maxX = -std::numeric_limits<double>::max();
     double maxY = -std::numeric_limits<double>::max();
     double maxZ = -std::numeric_limits<double>::max();
@@ -69,15 +61,27 @@ HitBox HitBox::Box(const Mesh &mesh) {
         }
     }
 
-    result._hitBox.emplace_back(minX, minY, minZ);
+    _hitBox.emplace_back(minX, minY, minZ);
-    result._hitBox.emplace_back(minX, maxY, minZ);
+    _hitBox.emplace_back(minX, maxY, minZ);
-    result._hitBox.emplace_back(maxX, minY, minZ);
+    _hitBox.emplace_back(maxX, minY, minZ);
-    result._hitBox.emplace_back(maxX, maxY, minZ);
+    _hitBox.emplace_back(maxX, maxY, minZ);
 
-    result._hitBox.emplace_back(minX, minY, maxZ);
+    _hitBox.emplace_back(minX, minY, maxZ);
-    result._hitBox.emplace_back(minX, maxY, maxZ);
+    _hitBox.emplace_back(minX, maxY, maxZ);
-    result._hitBox.emplace_back(maxX, minY, maxZ);
+    _hitBox.emplace_back(maxX, minY, maxZ);
-    result._hitBox.emplace_back(maxX, maxY, maxZ);
+    _hitBox.emplace_back(maxX, maxY, maxZ);
-
+}
-    return result;
+
+void HitBox::generateDetailed(const Mesh &mesh) {
+    // we dont need to add the same points in hit box
+    std::set<Vec3D, HitBox::Vec3DLess> points;
+
+    for (const auto& t : mesh.triangles())
+        for (int i = 0; i < 3; i++)
+            points.insert(Vec3D(t[i]));
+
+    _hitBox.reserve(points.size());
+    for (const auto& it : points)
+        _hitBox.push_back(it);
+    _hitBox.shrink_to_fit();
 }

engine/physics/HitBox.h

@@ -15,17 +15,17 @@ private:
 
     std::vector<Vec3D> _hitBox;
 
+    void generateSimple(const Mesh &mesh);
+    void generateDetailed(const Mesh &mesh);
 public:
     HitBox() = default;
     HitBox(const HitBox &hitBox) = default;
 
-    explicit HitBox(const Mesh &mesh);
+    explicit HitBox(const Mesh &mesh, bool useSimpleBox = true);
 
     [[nodiscard]] std::vector<Vec3D>::iterator begin() { return _hitBox.begin(); }
 
     [[nodiscard]] std::vector<Vec3D>::iterator end() { return _hitBox.end(); }
-
-    HitBox static Box(const Mesh &mesh);
 };
 
 

engine/physics/RigidBody.cpp

@@ -10,15 +10,14 @@
 #include "../utils/Time.h"
 #include "../Consts.h"
 
-RigidBody::RigidBody(ObjectNameTag nameTag, const std::string &filename, const Vec3D &scale) : Mesh(std::move(nameTag),
+RigidBody::RigidBody(ObjectNameTag nameTag, const std::string &filename, const Vec3D &scale, bool useSimpleBox) : Mesh(std::move(nameTag),
                                                                                                     filename, scale),
-                                                                                               _hitBox(*this) {
+                                                                                               _hitBox(*this, useSimpleBox) {
 }
 
-RigidBody::RigidBody(const Mesh &mesh) : Mesh(mesh), _hitBox(mesh) {
+RigidBody::RigidBody(const Mesh &mesh, bool useSimpleBox) : Mesh(mesh), _hitBox(mesh, useSimpleBox) {
 }
 
-
 Vec3D RigidBody::_findFurthestPoint(const Vec3D &direction) {
     Vec3D maxPoint{0, 0, 0};
 
@@ -41,7 +40,6 @@ Vec3D RigidBody::_findFurthestPoint(const Vec3D &direction) {
 Vec3D RigidBody::_support(std::shared_ptr<RigidBody> obj, const Vec3D &direction) {
     Vec3D p1 = _findFurthestPoint(direction);
     Vec3D p2 = obj->_findFurthestPoint(-direction);
-    Vec3D res = p1 - p2;
 
     return p1 - p2;
 }
@@ -349,12 +347,3 @@ void RigidBody::addVelocity(const Vec3D &velocity) {
 void RigidBody::setAcceleration(const Vec3D &acceleration) {
     _acceleration = acceleration;
 }
-
-void RigidBody::setSimpleHitBox(bool b) {
-    _simpleHitBox = b;
-    if (_simpleHitBox) {
-        _hitBox = HitBox::Box(*this);
-    } else {
-        _hitBox = HitBox(*this);
-    }
-}

engine/physics/RigidBody.h

@@ -41,23 +41,17 @@ private:
     bool _isTrigger = false;
 
     HitBox _hitBox{};
-    bool _simpleHitBox = false;
 
     bool _inCollision = false;
     Vec3D _collisionNormal{0, 0, 0};
 
     Vec3D _findFurthestPoint(const Vec3D &direction);
-
     Vec3D _support(std::shared_ptr<RigidBody> obj, const Vec3D &direction);
-
     std::function<void(const ObjectNameTag &, std::shared_ptr<RigidBody>)> _collisionCallBack;
 
     static NextSimplex _nextSimplex(const Simplex &points);
-
     static NextSimplex _lineCase(const Simplex &points);
-
     static NextSimplex _triangleCase(const Simplex &points);
-
     static NextSimplex _tetrahedronCase(const Simplex &points);
 
     static std::pair<std::vector<FaceNormal>, size_t>
@@ -68,49 +62,32 @@ private:
                      size_t b);
 public:
     explicit RigidBody(ObjectNameTag nameTag) : Mesh(std::move(nameTag)) {};
-
     RigidBody(const RigidBody &rigidBody) = default;
-
+    explicit RigidBody(const Mesh &mesh, bool useSimpleBox = true);
-    explicit RigidBody(const Mesh &mesh);
+    RigidBody(ObjectNameTag nameTag, const std::string &filename, const Vec3D &scale = Vec3D{1, 1, 1}, bool useSimpleBox = true);
-
-    RigidBody(ObjectNameTag nameTag, const std::string &filename, const Vec3D &scale = Vec3D{1, 1, 1});
 
     [[nodiscard]] std::pair<bool, Simplex> checkGJKCollision(std::shared_ptr<RigidBody> obj);
-
     [[nodiscard]] CollisionPoint EPA(const Simplex &simplex, std::shared_ptr<RigidBody> obj);
-
     void solveCollision(const CollisionPoint &collision);
 
     [[nodiscard]] Vec3D collisionNormal() const { return _collisionNormal; }
-
     [[nodiscard]] bool hasCollision() const { return _hasCollision; }
-
     [[nodiscard]] bool inCollision() const { return _inCollision; }
-
     [[nodiscard]] bool isCollider() const { return _isCollider; }
-
     [[nodiscard]] bool isTrigger() const { return _isTrigger; }
 
     void setInCollision(bool c) { _inCollision = c; }
-
     void setCollision(bool c) { _hasCollision = c; }
-
     void setCollider(bool c) { _isCollider = c; }
-
-    void setSimpleHitBox(bool b);
-
     void setTrigger(bool t) { _isTrigger = t; }
 
     void updatePhysicsState();
 
     void setVelocity(const Vec3D &velocity);
-
     void addVelocity(const Vec3D &velocity);
-
     void setAcceleration(const Vec3D &acceleration);
 
     [[nodiscard]] Vec3D velocity() const { return _velocity; }
-
     [[nodiscard]] Vec3D acceleration() const { return _acceleration; }
 
     [[nodiscard]] const std::function<void(const ObjectNameTag &, std::shared_ptr<RigidBody>)> &

engine/utils/Time.cpp

@@ -9,17 +9,16 @@
 using namespace std::chrono;
 
 Time *Time::_instance = nullptr;
-bool Time::_validInstance = false;
 
 void Time::init() {
+    delete _instance;
     _instance = new Time();
-    _validInstance = true;
 
     Log::log("Time::init(): time was initialized");
 }
 
 double Time::time() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return 0;
     }
 
@@ -27,7 +26,7 @@ double Time::time() {
 }
 
 double Time::deltaTime() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return 0;
     }
 
@@ -35,7 +34,7 @@ double Time::deltaTime() {
 }
 
 void Time::update() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
 
@@ -63,7 +62,7 @@ void Time::update() {
 }
 
 int Time::fps() {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return 0;
     }
     // Cast is faster than floor and has the same behavior for positive numbers
@@ -71,7 +70,7 @@ int Time::fps() {
 }
 
 void Time::startTimer(const std::string &timerName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
     _instance->_timers.insert({timerName, Timer()});
@@ -79,7 +78,7 @@ void Time::startTimer(const std::string &timerName) {
 }
 
 void Time::stopTimer(const std::string &timerName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return;
     }
     if(_instance->_timers.count(timerName) > 0) {
@@ -88,7 +87,7 @@ void Time::stopTimer(const std::string &timerName) {
 }
 
 double Time::elapsedTimerMilliseconds(const std::string &timerName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return 0;
     }
     if(_instance->_timers.count(timerName) > 0) {
@@ -98,7 +97,7 @@ double Time::elapsedTimerMilliseconds(const std::string &timerName) {
 }
 
 double Time::elapsedTimerSeconds(const std::string &timerName) {
-    if (!_validInstance) {
+    if (_instance == nullptr) {
         return 0;
     }
     if(_instance->_timers.count(timerName) > 0) {
@@ -109,8 +108,8 @@ double Time::elapsedTimerSeconds(const std::string &timerName) {
 
 
 void Time::free() {
-    _validInstance = false;
     delete _instance;
+    _instance = nullptr;
 
     Log::log("Time::free(): pointer to 'Time' was freed");
 }

engine/utils/Time.h

@@ -29,7 +29,6 @@ private:
     double _deltaTime = 0;
 
     static Time *_instance;
-    static bool _validInstance;
 
     Time() = default;
 

shooter.vcxproj

@@ -161,6 +161,7 @@
   <ItemGroup>
     <ClCompile Include="engine\animation\Animation.cpp" />
     <ClCompile Include="engine\animation\Timeline.cpp" />
+    <ClInclude Include="engine\animation\Interpolation.cpp" />
     <ClCompile Include="engine\Camera.cpp" />
     <ClCompile Include="engine\Engine.cpp" />
     <ClCompile Include="engine\gui\Button.cpp" />
@@ -213,6 +214,7 @@
     <ClInclude Include="engine\animation\ARotateLeft.h" />
     <ClInclude Include="engine\animation\Interpolation.h" />
     <ClInclude Include="engine\animation\Timeline.h" />
+    <ClInclude Include="engine\animation\Animations.h" />
     <ClInclude Include="engine\Camera.h" />
     <ClInclude Include="engine\Consts.h" />
     <ClInclude Include="engine\Engine.h" />

shooter.vcxproj.filters

@@ -87,6 +87,9 @@
     <ClCompile Include="engine\animation\Timeline.cpp">
       <Filter>Исходные файлы\engine\animation</Filter>
     </ClCompile>
+    <ClInclude Include="engine\animation\Interpolation.cpp">
+      <Filter>Файлы заголовков\engine\animation</Filter>
+    </ClInclude>
     <ClCompile Include="engine\gui\Button.cpp">
       <Filter>Исходные файлы\engine\gui</Filter>
     </ClCompile>
@@ -254,6 +257,9 @@
     <ClInclude Include="engine\animation\Interpolation.h">
       <Filter>Файлы заголовков\engine\animation</Filter>
     </ClInclude>
+    <ClInclude Include="engine\animation\Animations.h">
+      <Filter>Файлы заголовков\engine\animation</Filter>
+    </ClInclude>
     <ClInclude Include="engine\network\ClientUDP.h">
       <Filter>Файлы заголовков\engine\network</Filter>
     </ClInclude>

weapon/Ak47.h

@@ -6,16 +6,14 @@
 #define SHOOTER_AK47_H
 
 #include "Weapon.h"
-#include "../engine/ResourceManager.h"
 #include "../ShooterConsts.h"
 
 class Ak47 final : public Weapon {
 public:
     explicit Ak47() : Weapon(100, 30, 3.0, 0.1, 300, 2.0,
-                            ShooterConsts::AK47_FIRE_SOUND, ShooterConsts::AK47_RELOAD_SOUND,
+                             ShooterConsts::AK47_FIRE_SOUND, ShooterConsts::AK47_RELOAD_SOUND,
-                            ObjectNameTag("ak47"), ShooterConsts::AK47_OBJ,
+                             ObjectNameTag("ak47"), ShooterConsts::AK47_OBJ,
-                            Vec3D{3, 3, 3}, Vec3D{-2.3, 0.8, 1.8},Vec3D{0, 0, 0}) {}
+                             Vec3D{3, 3, 3}, Vec3D{-2.3, 0.8, 1.8},Vec3D{0, 0, 0}) {}
 };
 
-
 #endif //SHOOTER_3DZAVR_AK47_H

weapon/Shotgun.h

@@ -18,14 +18,14 @@ public:
 
     std::map<ObjectNameTag, double>
     processFire(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
-                const Vec3D &position, const Vec3D &direction) override {
+                const Vec3D &position, const Vec3D &direction) const override {
 
         std::map<ObjectNameTag, double> damagedPlayers;
 
         for (int i = 0; i < 15; i++) {
-            std::map<ObjectNameTag, double> damaged = addTrace(rayCastFunction, position, direction);
+            std::map<ObjectNameTag, double> damaged = fireABullet(rayCastFunction, position, direction);
-            for (auto &player : damaged) {
+            for (auto &[playerName, damage] : damaged) {
-                damagedPlayers[player.first] += player.second;
+                damagedPlayers[playerName] += damage;
             }
         }
 

weapon/Weapon.cpp

@@ -2,12 +2,9 @@
 // Created by Иван Ильин on 01.06.2021.
 //
 
-#include <utility>
-
 #include "Weapon.h"
 #include "../engine/ResourceManager.h"
 #include "../engine/utils/Log.h"
-#include "../engine/animation/AColor.h"
 #include "../ShooterConsts.h"
 
 using namespace std;
@@ -79,33 +76,37 @@ void Weapon::reload() {
 
 std::map<ObjectNameTag, double>
 Weapon::processFire(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
-                    const Vec3D &position, const Vec3D &direction) {
+                    const Vec3D &position, const Vec3D &direction) const {
-    return addTrace(std::move(rayCastFunction), position, direction);
+    // Standard weapon usually fire one bullet at a time
+    // But some types of weapon can fire several bullet at the same time (for ex. shotgun)
+    // That's why processFire() is s virtual function
+    return fireABullet(std::move(rayCastFunction), position, direction);
 }
 
 std::map<ObjectNameTag, double>
-Weapon::addTrace(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
+Weapon::fireABullet(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
-                 const Vec3D &from, const Vec3D &directionTo) {
+                    const Vec3D &cameraPosition, const Vec3D &direction) const {
     std::map<ObjectNameTag, double> damagedPlayers;
 
-    double spreading = _spreading * ShooterConsts::FIRE_DISTANCE / 100;
+    double spreading = _spreading * ShooterConsts::FIRE_DISTANCE / 100.0;
 
     //generate random vector
-    Vec3D randV(spreading * (1.0 - 2.0 * (double) rand() / RAND_MAX),
+    Vec3D randV(spreading * (1.0 - 2.0 * static_cast<double>(rand()) / RAND_MAX),
-                spreading * (1.0 - 2.0 * (double) rand() / RAND_MAX),
+                spreading * (1.0 - 2.0 * static_cast<double>(rand()) / RAND_MAX),
-                spreading * (1.0 - 2.0 * (double) rand() / RAND_MAX));
+                spreading * (1.0 - 2.0 * static_cast<double>(rand()) / RAND_MAX));
 
     // damage player
-    auto rayCast = rayCastFunction(from, from + directionTo * ShooterConsts::FIRE_DISTANCE + randV);
+    auto rayCast = rayCastFunction(cameraPosition, cameraPosition + direction * ShooterConsts::FIRE_DISTANCE + randV);
-    if (rayCast.objectName.str().find("Enemy") != std::string::npos) {
+    if (rayCast.objectName.contains(ObjectNameTag("Enemy"))) {
+
         damagedPlayers[rayCast.objectName] += _damage / (1.0 + rayCast.distanceToObject);
 
         // If you hit the head the damage will be doubled
-        if (rayCast.objectName.str().find("_head") != std::string::npos) {
+        if (rayCast.objectName.contains(ObjectNameTag("_head"))) {
             damagedPlayers[rayCast.objectName] += _damage / (1.0 + rayCast.distanceToObject);
         }
         // If you hit the foot the damage will be divided by 2
-        if (rayCast.objectName.str().find("_foot_") != std::string::npos) {
+        if (rayCast.objectName.contains(ObjectNameTag("_foot_"))) {
             damagedPlayers[rayCast.objectName] -= 0.5 * _damage / (1.0 + rayCast.distanceToObject);
         }
     }
@@ -113,9 +114,9 @@ Weapon::addTrace(std::function<IntersectionInformation(const Vec3D &, const Vec3
     // add trace line
     Vec3D lineFrom = position() + model() * Vec3D(triangles().back()[0]);
     Vec3D lineTo = rayCast.intersected ? rayCast.pointOfIntersection : position() +
-                                                                       directionTo * ShooterConsts::FIRE_DISTANCE +
+                                                                       direction * ShooterConsts::FIRE_DISTANCE +
                                                                        randV;
     _addTraceCallBack(lineFrom, lineTo);
 
     return damagedPlayers;
-}
+}

weapon/Weapon.h

@@ -42,12 +42,12 @@ private:
 
 protected:
     std::map<ObjectNameTag, double>
-    addTrace(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
+    fireABullet(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
-             const Vec3D &position, const Vec3D &direction);
+                const Vec3D &position, const Vec3D &direction) const;
 
     virtual std::map<ObjectNameTag, double>
     processFire(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction,
-                const Vec3D &position, const Vec3D &direction);
+                const Vec3D &position, const Vec3D &direction) const;
 
 public:
     Weapon(int initialPack, int clipCapacity, double reloadTime, double fireDelay, double damage, double spreading,
@@ -55,7 +55,7 @@ public:
            const Vec3D &s, const Vec3D &t, const Vec3D &r);
 
     FireInformation
-    fire(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction, const Vec3D &position,
+    fire(std::function<IntersectionInformation(const Vec3D &, const Vec3D &)> rayCastFunction, const Vec3D &cameraPosition,
          const Vec3D &direction);
 
     void reload();
@@ -67,7 +67,7 @@ public:
     void setReloadCallBack(std::function<void()> reload) { _reloadCallBack = std::move(reload); }
 
 
-    void addAmmo(int ammoAdd) { _stockAmmo += ammoAdd; }
+    void addAPack() { _stockAmmo += initialPack(); }
 
     [[nodiscard]] int initialPack() const { return _initialPack; }
 };