First commit. Hello SDL.

[rbdr/super-polarity] / src / main.c

//
//  main.c
//  Super Polarity
//
//  Created by Ruben Beltran del Rio on 8/13/13.
//  Copyright (c) 2013 Abuguet. All rights reserved.
//

#include <stdio.h>
#include <time.h>

#include "SDL2/SDL.h"

// TODO: Move these guys to a config header file
#define SCREEN_WIDTH 640
#define SCREEN_HEIGHT 480
#define FPS 30

int main(int argc, const char * argv[])
{
    
    // SDL Initialization. TODO: Should have an initializer.
    SDL_Window *window;
    SDL_Renderer *renderer;
    Uint32 startFrame;
    Uint32 endFrame;
    Uint32 delay;
    int done;
    
    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
        printf("Could not initialize SDL");
        exit(1);
    }
    
    window = SDL_CreateWindow("Super Polarity", 50, 50, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS);
    
    renderer = SDL_CreateRenderer(window, -1, 0);
    
    done = 0;
    
    // Event Loop.
    while (!done) {
        startFrame = SDL_GetTicks();
        SDL_Event event;
        while (SDL_PollEvent(&event)) {
            if (event.type == SDL_QUIT) {
                done = 1;
            }
        }
        
        endFrame = SDL_GetTicks();
        
        /* see if we have time to sleep */
        delay = 1000 / FPS - (endFrame - startFrame);
        if (delay > 1000 / FPS) {
            delay = 1000 / FPS;
        }
        SDL_Delay(delay);
    }
    
    SDL_Quit();

    return 0;
}