deltatime

include/game/agame/player.hpp

@@ -11,6 +11,6 @@ namespace Game::AGame {
         public:
             ~Player() override = default;
             void start() override;
-            void update() override;
+            void update(float deltaTime) override;
     };
 }

include/game/gamemanager.hpp

@@ -9,6 +9,8 @@
 #include <functional>
 
 namespace Game {
+    using clock = std::chrono::steady_clock;
+    
     class GameManager {
         public:
             GameManager() { LOG("Created GameManager"); };
@@ -21,5 +23,6 @@ namespace Game {
             int getTargetUpdatesPerSecond() { return mTargetUpdatesPerSecond; }
         private:
             int mTargetUpdatesPerSecond = 60;
+            clock::time_point mLastUpdate;
     };
 }

include/object/entity.hpp

@@ -25,7 +25,7 @@ namespace Game::Object {
             virtual ~Entity() = 0;
 
             virtual void start() = 0;
-            virtual void update() = 0;
+            virtual void update(float deltaTime) = 0;
             void render(Game::Renderer::Renderer* renderer);
 
             // Setters and getters

src/game/agame/player.cpp

@@ -4,7 +4,7 @@ namespace Game::AGame {
     void Player::start() {
         LOG("Created the Player");
 
-        if (mTex && mTex->getId() == "Arial") {
+        if (mTex && mTex->getId() == "Roboto") {
             LOG("Player texture is a font");
             // Treat as Font and build it
             std::shared_ptr<Renderer::Font> font = std::dynamic_pointer_cast<Renderer::Font>(mTex);
@@ -16,10 +16,12 @@ namespace Game::AGame {
         }
     }
 
-    void Player::update() {
+    void Player::update(float deltaTime) {
         if (!mIsActive) return;
         //LOG("Updated Player");
-        mTransform.x += 0.5f; // Move right at a constant speed for testing
+        mTransform.x += 1.f; // Move right at a constant speed for testing
         mTransform.rotation += 1.f; // Rotate clockwise for testing
+        //LOG(mName << " position: " << mTransform.x << ' ' << mTransform.y);
+        //LOG("DeltaTime: " << deltaTime);
     }
 }

src/game/gamemanager.cpp

@@ -6,21 +6,29 @@ namespace Game {
         using namespace std::chrono_literals;
         LOG("GameManager thread started");
 
+        mLastUpdate = clock::now(); // Get the update
+
         while (!stopToken.stop_requested()) {
+            clock::time_point now = clock::now();
+            std::chrono::duration<float> elapsedDt = now - mLastUpdate;
+            float seconds = elapsedDt.count();
+
             const int updatesPerSecond = std::max(1, mTargetUpdatesPerSecond);
             const auto frameDuration = std::chrono::duration<double>(1.0 / static_cast<double>(updatesPerSecond));
             const auto frameStart = std::chrono::steady_clock::now();
 
             try {
-                State::GameState::getInstance().withEntitiesLocked([](auto& entities) {
+                State::GameState::getInstance().withEntitiesLocked([seconds](auto& entities) {
                     for (auto& entity : entities) {
-                        entity->update();
+                        entity->update(seconds);
                     }
                 });
             } catch (const std::exception& e) {
                 ERROR("Exception in GameManager thread: " << e.what());
             }
 
+            mLastUpdate = now;
+
             const auto elapsed = std::chrono::steady_clock::now() - frameStart;
             const auto remaining = frameDuration - elapsed;
             if (remaining > 0s) {

src/main.cpp

@@ -14,9 +14,9 @@ int main() {
     Window::Window window = Window::Window();
     window.init(1280, 720, "Game Window");
 
-    Object::Transform t1{100.f, 100.f, 0.f, 1.f, 1.f};
+    //Object::Transform t1{100.f, 100.f, 0.f, 1.f, 1.f};
     State::GameState::getInstance().addEntity(std::make_unique<AGame::Player>("Player", std::make_shared<Game::Renderer::Texture>("../resources/missing_texture.png", window.getRenderer()->getSDLRenderer()), Object::DEFAULT_TRANSFORM));
-    State::GameState::getInstance().addEntity(std::make_unique<AGame::Player>("Player2", std::make_shared<Game::Renderer::Font>("../resources/roboto.ttf", window.getRenderer()->getSDLRenderer(), 128, "Arial"), t1));
+    //State::GameState::getInstance().addEntity(std::make_unique<AGame::Player>("Player2", std::make_shared<Game::Renderer::Font>("../resources/roboto.ttf", window.getRenderer()->getSDLRenderer(), 128, "Roboto"), t1));
 
     window.run();
     

src/renderer/font.cpp

@@ -15,14 +15,16 @@ namespace Game::Renderer {
         }
     }
 
-    Font::Font(const Font& other) {
-        this->mTex = other.mTex;
+    Font::Font(const Font& other) 
+    : Texture(other) {
         this->mFont = other.mFont;
     }
 
     Font& Font::operator=(const Font& other) {
-        this->mTex = other.mTex;
+        if (this != &other) {
+            Texture::operator=(other);
             this->mFont = other.mFont;
+        }
         return *this;
     }