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C-/C++-Quelltext

void Game::Update(){
     SDL_PumpEvents();

     if(KeyDown(SDLK_w))
         player.Move("up");

    if(KeyDown(SDLK_s))
         player.Move("down");

    if(KeyDown(SDLK_ESCAPE))
         gamerun = false;
}

void Timer::Update (){  
        CurTime = SDL_GetTicks() / 1000.0f;
        Elapsed = CurTime - LastTime;
        LastTime = CurTime;
}

void Player::Move(string direction){
    if(direction == "up")
        y -= speed * timer->GetElapsed();

    else if(direction == "down")        
        y += speed * timer->GetElapsed();
    
if(y < 0) y = 0;    
if(y > 380) y = 380;
sprite->SetPos(x, y);
}

C-/C++-Quelltext

#include <SDL.h>
#include "Singleton.hpp"

#define g_pTimer Timer::Get ()
class Timer : public Singleton<Timer>
{
    public:
        Timer           ();
        void  Update     ();
        float GetElapsed () {return Elapsed;}

    private:
        float Elapsed;  // Vergangene Zeit seit dem letzten Frame
        float CurTime;  // Aktuelle Zeit
        float LastTime; // Zeit des letzten Frames

};

C-/C++-Quelltext

void Game::Run()
{
    screen = NULL;

    screen = SDL_SetVideoMode(640, 480, 32, SDL_SWSURFACE);
    gamerun = true;
    ks = SDL_GetKeyState(NULL);

    bg.Load(screen);
    player.Load(screen, "player");

    while(gamerun)
    {
        Update();
        g_pTimer->Update();

        bg.Draw();
        player.Draw();


        SDL_Flip(screen);
    }


    bg.Quit();
}

C-/C++-Quelltext

Timer::Timer ()
{
    CurTime  = 0.0f;
    LastTime = SDL_GetTicks() / 1000.0f;
    Elapsed  = 0.0f;

}