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 * terms of this license.
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 * terms of this license.
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 *
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 *
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 * You must not remove this notice, or any other, from this software.
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 * You must not remove this notice, or any other, from this software.
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 */
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 */
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#include <SDL.h>
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#include <SDL2/SDL.h>
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#include <string.h>
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#include <ctype.h>
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#include "system.h"
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#include "system.h"
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#include "game.h"
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#include "game.h"
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#include "control.h"
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#include "control.h"
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#include "draw.h"
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#include "draw.h"
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#define SYSJOY_RANGE 3280
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#define SYSJOY_RANGE 3280
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static char character_ringbuffer[16] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
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static int character_ringbuffer_index = 0;
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extern U8 want_infinitelives;
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extern U8 want_infiniteammo;
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static SDL_Event event;
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static SDL_Event event;
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extern U8 want_filter;
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extern U8 want_filter;
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extern U8 want_fullscreen;
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extern U8 want_fullscreen;
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extern U8 enable_endkey;
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extern U8 enable_endkey;
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extern U8 recreate_screen;
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extern U8 recreate_screen;
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static U8 has_accumulated (const char *str)
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{
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   int len = (int) strlen (str);
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   for (int i = 0; i < len; i++)
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      if (character_ringbuffer[(sizeof (character_ringbuffer) + character_ringbuffer_index - len + i) % 16] != str[i])
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         return 0;
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   return 1;
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}
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/*
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/*
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 * Process an event
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 * Process an event
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 */
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 */
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      else if (alt_pressed && key == SDL_SCANCODE_F4)
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      else if (alt_pressed && key == SDL_SCANCODE_F4)
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      {
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      {
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         control_status |= CONTROL_EXIT;
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         control_status |= CONTROL_EXIT;
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         control_last = CONTROL_EXIT;
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         control_last = CONTROL_EXIT;
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      }
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      }
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      else if (key == SDL_SCANCODE_O || key == SDL_SCANCODE_UP)
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      else if ((key == SDL_SCANCODE_O || key == SDL_SCANCODE_UP) && !has_accumulated ("MAT") && !has_accumulated ("MATOSGRAT") && !has_accumulated (";QT") && !has_accumulated (";QTOSGRQT"))
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      {
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      {
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         control_status |= CONTROL_UP;
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         control_status |= CONTROL_UP;
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         control_last = CONTROL_UP;
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         control_last = CONTROL_UP;
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      }
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      }
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      else if (key == SDL_SCANCODE_K || key == SDL_SCANCODE_DOWN)
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      else if (key == SDL_SCANCODE_K || key == SDL_SCANCODE_DOWN)
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      else if (key == SDL_SCANCODE_X || key == SDL_SCANCODE_RIGHT)
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      else if (key == SDL_SCANCODE_X || key == SDL_SCANCODE_RIGHT)
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      {
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      {
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         control_status |= CONTROL_RIGHT;
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         control_status |= CONTROL_RIGHT;
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         control_last = CONTROL_RIGHT;
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         control_last = CONTROL_RIGHT;
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      }
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      }
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      else if ((key == SDL_SCANCODE_PAUSE) || (key == SDL_SCANCODE_P))
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      else if (((key == SDL_SCANCODE_PAUSE) || (key == SDL_SCANCODE_P)) && !has_accumulated ("MEME") && !has_accumulated (";E;E"))
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      {
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      {
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         control_status |= CONTROL_PAUSE;
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         control_status |= CONTROL_PAUSE;
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         control_last = CONTROL_PAUSE;
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         control_last = CONTROL_PAUSE;
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      }
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      }
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      else if ((key == SDL_SCANCODE_END) && enable_endkey)
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      else if ((key == SDL_SCANCODE_END) && enable_endkey)
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      }
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      }
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      else if (key == SDL_SCANCODE_SPACE)
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      else if (key == SDL_SCANCODE_SPACE)
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      {
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      {
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         control_status &= ~CONTROL_FIRE;
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         control_status &= ~CONTROL_FIRE;
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         control_last = CONTROL_FIRE;
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         control_last = CONTROL_FIRE;
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      }
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      // cheat codes:
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      // 'MEMEPASMAL' -> infinite lives
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      // 'MATOSGRATOS' -> infinite ammo
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      {
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         const char *keyname = SDL_GetScancodeName (key);
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         character_ringbuffer[character_ringbuffer_index] = toupper (keyname[0]);
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         character_ringbuffer_index = (character_ringbuffer_index + 1) % 16;
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         if (has_accumulated ("MEMEPASMAL") || has_accumulated (";E;EPQS;QL"))
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         {
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            want_infinitelives = TRUE;
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            game_lives = 6;
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            syssnd_play (WAV_DIE, 1);
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         }
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         else if (has_accumulated ("MATOSGRATOS") || has_accumulated (";QTOSGRQTOS"))
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         {
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            want_infiniteammo = TRUE;
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            game_bullets = 6;
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            game_bombs = 6;
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            syssnd_play (WAV_DIE, 1);
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         }
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      }
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      }
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      break;
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      break;
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   case SDL_QUIT:
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   case SDL_QUIT:
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      /* player tries to close the window -- this is the same as pressing ESC */
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      /* player tries to close the window -- this is the same as pressing ESC */
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      control_status |= CONTROL_EXIT;
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      control_status |= CONTROL_EXIT;