keyboard.c

   1 #include <string.h>
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <SDL/SDL.h>
   5
   6 Uint8 *oldkeys=NULL;
   7
   8 DECLSPEC int isKeyDown(int key) {
   9 int num = 0;
  10 Uint8 *keystate = SDL_GetKeyState(&num);
  11 return keystate[key]? 1:0;
  12 }
  13
  14 DECLSPEC int isKeyPressed(int key) {
  15 int num;
  16 int ret=0;
  17 Uint8 *keystate = SDL_GetKeyState(&num);
  18 if (oldkeys==NULL)
  19 oldkeys=calloc(num,1);
  20 if (keystate[key]&&!oldkeys[key])
  21 ret=1;
  22 oldkeys[key] = keystate[key];
  23 return ret;
  24 }