Änderung von Capter1 auf SDL3

Capter1/ax_game.cpp

@@ -30,32 +30,54 @@ ax_game::~ax_game()
 }
 
 bool ax_game::Init(){
-    int sdlResult = SDL_Init(SDL_INIT_VIDEO);
-    if(sdlResult != 0){
+    if(!SDL_Init(SDL_INIT_VIDEO)){
         SDL_Log("Fehler bei SDL_INIT: %s", SDL_GetError());
         return false;
     }
 
-    ax_Window = SDL_CreateWindow("Ersted Fenster", 100,100,1024,768,0);
+    ax_Window = SDL_CreateWindow("Ersted Fenster", 1024,768,0);
+    if (!ax_Window) {
+        SDL_Log("Fehler bei SDL_CreateWindow: %s", SDL_GetError());
+        SDL_Quit();
+        return false;
+    }
 
-    ax_Renderer = SDL_CreateRenderer(ax_Window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+    ax_Renderer = SDL_CreateRenderer(ax_Window, nullptr);
 
     if(!ax_Renderer){
         SDL_Log("Fehler bei SDL_CreateRenderer: %s", SDL_GetError());
+        SDL_DestroyWindow(ax_Window);
+        SDL_Quit();
         return false;
     }
 
 
-
+    SDL_ShowWindow(ax_Window);
     return true;
 
 }
 
 void ax_game::RunLoop(){
+    const float targetFrameTime = 1.0f / 30.0f; // 30 FPS = 33.333 ms pro Frame
+    Uint64 freq = SDL_GetPerformanceFrequency();
+
     while(ax_IsRunning){
+        Uint64 frameStart = SDL_GetPerformanceCounter();
+
+        // ======= 1. Logic ==========
         Input();
         Update();
         Output();
+
+        // ======= 2. Timing =======
+        Uint64 frameEnd = SDL_GetPerformanceCounter();
+        float frameDuration = (frameEnd - frameStart) / (float)freq;
+
+        if (frameDuration < targetFrameTime) {
+            // Zeit, die noch übrig ist, in Sekunden → in Millisekunden umrechnen
+            float delaySec = targetFrameTime - frameDuration;
+            SDL_Delay((Uint32)(delaySec * 1000.0f));
+        }
     }
 }
 
@@ -70,15 +92,16 @@ void ax_game::Input(){
     while(SDL_PollEvent(&event)){
         switch (event.type)
         {
-        case SDL_QUIT:
+        case SDL_EVENT_QUIT:
             ax_IsRunning = false;
             break;
         }
     }
 
     //Tastatur auslesen
-    const Uint8 *state = SDL_GetKeyboardState(NULL);
-    //if(state[SDL_SCANCODE_ESCAPE]) ax_IsRunning = false;
+    SDL_PumpEvents();
+    const bool *state = SDL_GetKeyboardState(NULL);
+    if(state[SDL_SCANCODE_ESCAPE]) ax_IsRunning = false;
     //if(state[SDL_SCANCODE_S]) ax_balliste[0].vely += 10;
     //if(state[SDL_SCANCODE_W]) ax_balliste[0].vely -= 10;
     //if(state[SDL_SCANCODE_D]) ax_balliste[0].velx += 10;
@@ -87,29 +110,21 @@ void ax_game::Input(){
 
 }
 
-void ax_game::Update(){
-    while(!SDL_TICKS_PASSED(SDL_GetTicks(), ax_TickCounter + 16));
-    float DeltaTime = (SDL_GetTicks() - ax_TickCounter) / 1000.0f;
-    if (DeltaTime > 0.05f)
-	{
-		DeltaTime = 0.05f;
-	}
-    ax_TickCounter = SDL_GetTicks();
-    
-    // Update Ball
-    for (auto &n : ax_balliste){
-        n.Update(DeltaTime, ax_balliste);
-    }
+void ax_game::Update() {
+    static Uint64 lastTick = SDL_GetPerformanceCounter();
+    Uint64 now = SDL_GetPerformanceCounter();
+    float freq = (float)SDL_GetPerformanceFrequency();
+
+    float delta = (now - lastTick) / freq;
+
+    if (delta > 0.05f) delta = 0.05f;
+    lastTick = now;
+
+    for (auto &n : ax_balliste)
+        n.Update(delta, ax_balliste);
 
-    // clean up
     for (auto it = ax_balliste.begin(); it != ax_balliste.end(); )
-    {
-        if (!it->alive)
-        it = ax_balliste.erase(it); // erase gibt neuen gültigen Iterator zurück
-    else
-        ++it; // nur erhöhen, wenn nichts gelöscht wurde
-    }
-
+        it = (!it->alive) ? ax_balliste.erase(it) : ++it;
 }
 
 void ax_game::Output(){