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  1. #include "SDL.h"
  2.  
  3. namespace Input
  4. {
  5. 	class Keyboard
  6.     {
  7.     public:
  8.         class Key
  9.         {
  10.         public:
  11.             friend Keyboard;
  12.  
  13.             enum Type
  14.             {
  15.                 TYPE_UP,
  16.                 TYPE_DOWN,
  17.                 TYPE_LEFT,
  18.                 TYPE_RIGHT,
  19.                 TYPE_RETURN,
  20.                 TYPE_ESCAPE,
  21.                 TYPE_SPACE,
  22.                 TYPE_A,
  23.                 TYPE_B,
  24.                 TYPE_C,
  25.                 TYPE_F,
  26.                 TYPE_M,
  27.                 TYPE_N,
  28.                 TYPE_S,
  29.                 TYPE_V,
  30.                 TYPE_W,
  31.                 TYPE_Z,
  32.                 TYPE_COUNT
  33.             };
  34.  
  35.         private:
  36.             int state;
  37.  
  38.         public:
  39.             bool isDown() const { return (state != 0); }
  40.             bool isHit()  const { return (state == 1); }
  41.  
  42.             Key() :
  43.                     state(0)
  44.             {
  45.             }
  46.         };
  47.  
  48.     private:
  49.         Key key[Key::TYPE_COUNT];
  50.  
  51.     public:
  52.         Key getKey(Key::Type type) const { return key[type]; }
  53.  
  54.         void handle(const SDL_Event sdl_event);
  55.         void initialize();
  56.     };
  57.  
  58.     void Keyboard::handle(const SDL_Event sdl_event)
  59.     {
  60.         if (sdl_event.type == SDL_KEYDOWN || sdl_event.type == SDL_KEYUP)
  61.         {
  62.             int sdlkey_equivalent = 0;
  63.             for (auto sdlkey : { SDLK_UP, SDLK_DOWN, SDLK_LEFT, SDLK_RIGHT, SDLK_RETURN, SDLK_ESCAPE, SDLK_SPACE, SDLK_a, SDLK_b, SDLK_c, SDLK_f, SDLK_m, SDLK_n, SDLK_s, SDLK_v, SDLK_w, SDLK_z })
  64.             {
  65.                 if (sdl_event.key.keysym.sym == sdlkey)
  66.                 {
  67.                     if (sdl_event.type == SDL_KEYDOWN)
  68.                     {
  69.                         key[sdlkey_equivalent].state = 1;
  70.                     }
  71.                     else if (sdl_event.type == SDL_KEYUP)
  72.                     {
  73.                         key[sdlkey_equivalent].state = 0;
  74.                     }
  75.                 }
  76.                 ++sdlkey_equivalent;
  77.             }
  78.         }
  79.     }
  80. }
  81.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp:1:17: fatal error: SDL.h: No such file or directory
 #include "SDL.h"
                 ^
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/8OI4K0
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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