#include <SDL/SDL.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#define DELTA 0.01
#define SCREENWIDTH 640
#define SCREENHEIGHT 480

bool running;
Uint32 current_time, last_time, time_passed;
SDL_Surface *screen;
void get_input();

void loop();

int main(int argc, char *argv[])
{
    printf("test");
    running = false;
    
    /* Initialize SDL */
    if (SDL_Init(SDL_INIT_VIDEO) != 0)
    {
        printf("Unable to initialize SDL\n");
        return false;
    }
    
    /* Set the window size up */
    screen = SDL_SetVideoMode(SCREENWIDTH, SCREENHEIGHT, 16, SDL_DOUBLEBUF);
    if (screen == NULL)
    {
        printf("Unable to set video mode\n");
        return false;
    }
    
    /* Get the time */
    current_time = SDL_GetTicks();
    
    running = true;
    
    while (running == true)
        loop();
    
    SDL_Quit();
}

void loop()
{
    float x_vol, example;
    x_vol = 15;
    
    /* Update Time stuff */
    last_time = current_time;
    current_time = SDL_GetTicks();
    time_passed = current_time - last_time;
        
    example = x_vol * time_passed * DELTA;
    
    printf("Time_passed: %d, example: %f\n", time_passed, example);

    /* Check for close attempt */
    get_input();
}
    
void get_input()
{
    SDL_Event event;
    SDL_keysym keysym;
    
    while (SDL_PollEvent(&event))
    {
        switch (event.type)
        {
            case SDL_QUIT:
                running = false;
                break;
           
            case SDL_KEYDOWN:
                keysym = event.key.keysym;
				switch(keysym.sym) 
                {
                    case SDLK_ESCAPE:
                        running = false;
                        break;      
                }       
                break;                 
        }
    }
}