qpawn.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <SDL2/SDL.h>
   4
   5 // redfefine as bitfield
   6 enum button {
   7         A, B, X, Y, U, D, L, R, ST, SE, SL, SR };
   8 enum btnstate {
   9         UP, DOWN };
  10 struct event {
  11         enum btnstate state;
  12         enum button btn; };
  13
  14 // FFI these
  15 void quit();
  16 void pixel(int, int);
  17 void color(int, int, int);
  18 void clear();
  19 void draw();
  20 void sleep(int);
  21 struct event* events();
  22
  23
  24 static SDL_Window*   window   = 0;
  25 static SDL_Renderer* renderer = 0;
  26
  27 void init()
  28 {
  29         if (SDL_Init(SDL_INIT_VIDEO) != 0) {
  30                 printf("sdl init failed");
  31                 quit();
  32                 return;
  33         }
  34         if (SDL_CreateWindowAndRenderer(640,480,0,&window,&renderer)!=0){
  35                 printf("create window&render failed");
  36                 quit();
  37                 return;
  38         }
  39 }
  40
  41 void quit()
  42 {
  43         SDL_DestroyRenderer(renderer);
  44         SDL_DestroyWindow(window);
  45         SDL_Quit();
  46 }
  47
  48 void clear()
  49 {
  50         SDL_RenderClear(renderer);
  51 }
  52
  53 void color(int r, int g, int b)
  54 {
  55         SDL_SetRenderDrawColor(renderer, r, g, b, 255);
  56 }
  57
  58 void pixel(int x, int y)
  59 {
  60         SDL_RenderDrawPoint(renderer, x, y);
  61 }
  62
  63 void draw()
  64 {
  65         SDL_RenderPresent(renderer);
  66 }
  67
  68 void sleep(int t)
  69 {
  70         SDL_Delay(t * 1000);
  71 }