git.r.bdr.sh - rbdr/super-polarity/blob - src/main.c

   1 //
   2 //  main.c
   3 //  Super Polarity
   4 //
   5 //  Created by Ruben Beltran del Rio on 8/13/13.
   6 //  Copyright (c) 2013 Abuguet. All rights reserved.
   7 //
   8
   9 #include <stdio.h>
  10 #include <time.h>
  11
  12 #include "SDL2/SDL.h"
  13 #include "SDL2_image/SDL_image.h"
  14
  15 // TODO: Move these guys to a config header file
  16 #define SCREEN_WIDTH 640
  17 #define SCREEN_HEIGHT 480
  18 #define FPS 30
  19
  20 SDL_Window *window;
  21 SDL_Renderer *renderer;
  22 SDL_Surface *benHead;
  23
  24 void init () {
  25     if (SDL_Init(SDL_INIT_VIDEO) < 0) {
  26         printf("Could not initialize SDL");
  27         exit(1);
  28     }
  29
  30     // Load the window and renderer
  31     window = SDL_CreateWindow("Super Polarity", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 0, 0, SDL_WINDOW_OPENGL | SDL_WINDOW_FULLSCREEN_DESKTOP);
  32
  33     renderer = SDL_CreateRenderer(window, -1, 0);
  34
  35     // Set linear quality for scaling, and the "logical" window size.
  36     SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
  37     SDL_RenderSetLogicalSize(renderer, SCREEN_WIDTH, SCREEN_HEIGHT);
  38
  39     // Load the surface.
  40     // benHead = IMG_Load("data/img/static/ben.png");
  41 }
  42
  43 void render (SDL_Renderer *renderer) {
  44     SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
  45     SDL_RenderClear(renderer);
  46     SDL_RenderPresent(renderer);
  47 }
  48
  49 int mainC(int argc, const char * argv[])
  50 {
  51
  52     // SDL Initialization. TODO: Should have an initializer.
  53     Uint32 startFrame;
  54     Uint32 endFrame;
  55     Uint32 delay;
  56     int done;
  57
  58
  59     done = 0;
  60
  61     // Event Loop.
  62     while (!done) {
  63         startFrame = SDL_GetTicks();
  64         SDL_Event event;
  65         while (SDL_PollEvent(&event)) {
  66             if (event.type == SDL_QUIT) {
  67                 done = 1;
  68             }
  69         }
  70
  71         render(renderer);
  72
  73         endFrame = SDL_GetTicks();
  74
  75         /* see if we have time to sleep */
  76         delay = 1000 / FPS - (endFrame - startFrame);
  77         if (delay > 1000 / FPS) {
  78             delay = 1000 / FPS;
  79         }
  80         SDL_Delay(delay);
  81     }
  82
  83     SDL_Quit();
  84
  85     return 0;
  86 }
  87