text: //
  // Copyright(C) 2005-2014 Simon Howard
  //
  // This program is free software; you can redistribute it and/or
  // modify it under the terms of the GNU General Public License
  // as published by the Free Software Foundation; either version 2
  // of the License, or (at your option) any later version.
  //
  // This program is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU General Public License for more details.
  //
  //
  // Parses "Cheat" sections in dehacked files
  //
  
  #include <stdlib.h>
  #include <string.h>
  
  #include "doomtype.h"
  
  #include "deh_defs.h"
  #include "deh_io.h"
  #include "deh_main.h"
  #include "am_map.h"
  #include "st_stuff.h"
  
  typedef struct 
  {
      char *name;
      cheatseq_t *seq;
  } deh_cheat_t;
  
  static deh_cheat_t allcheats[] =
  {
      {"Change music",        &cheat_mus },
      {"Chainsaw",            &cheat_choppers },
      {"God mode",            &cheat_god },
      {"Ammo & Keys",         &cheat_ammo },
      {"Ammo",                &cheat_ammonokey },
      {"No Clipping 1",       &cheat_noclip },
      {"No Clipping 2",       &cheat_commercial_noclip },
      {"Invincibility",       &cheat_powerup[0] },
      {"Berserk",             &cheat_powerup[1] },
      {"Invisibility",        &cheat_powerup[2] },
      {"Radiation Suit",      &cheat_powerup[3] },
      {"Auto-map",            &cheat_powerup[4] },
      {"Lite-Amp Goggles",    &cheat_powerup[5] },
      {"BEHOLD menu",         &cheat_powerup[6] },
      {"Level Warp",          &cheat_clev },
      {"Player Position",     &cheat_mypos },
      {"Map cheat",           &cheat_amap },
  };
  
  static deh_cheat_t *FindCheatByName(char *name)
  {
      size_t i;
      
      for (i=0; i<arrlen(allcheats); ++i)
      {
          if (!strcasecmp(allcheats[i].name, name))
              return &allcheats[i];
      }
  
      return NULL;
  }
  
  static void *DEH_CheatStart(deh_context_t *context, char *line)
  {
      return NULL;
  }
  
  static void DEH_CheatParseLine(deh_context_t *context, char *line, void *tag)
  {
      deh_cheat_t *cheat;
      char *variable_name;
      char *value;
      unsigned char *unsvalue;
      unsigned int i;
  
      if (!DEH_ParseAssignment(line, &variable_name, &value))
      {
          // Failed to parse
  
          DEH_Warning(context, "Failed to parse assignment");
          return;
      }
  
      unsvalue = (unsigned char *) value;
  
      cheat = FindCheatByName(variable_name);
  
      if (cheat == NULL)
      {
          DEH_Warning(context, "Unknown cheat '%s'", variable_name);
          return;
      }
  
      // write the value into the cheat sequence
  
      i = 0;
  
      while (unsvalue[i] != 0 && unsvalue[i] != 0xff)
      {
          // If the cheat length exceeds the Vanilla limit, stop.  This
          // does not apply if we have the limit turned off.
  
          if (!deh_allow_long_cheats && i >= cheat->seq->sequence_len)
          {
              DEH_Warning(context, "Cheat sequence longer than supported by "
                                   "Vanilla dehacked");
              break;
          }
  
  	if (deh_apply_cheats)
  	{
  	    cheat->seq->sequence[i] = unsvalue[i];
  	}
          ++i;
  
          // Absolute limit - don't exceed
  
          if (i >= MAX_CHEAT_LEN - cheat->seq->parameter_chars)
          {
              DEH_Error(context, "Cheat sequence too long!");
              return;
          }
      }
  
      if (deh_apply_cheats)
      {
          cheat->seq->sequence[i] = '\0';
      }
  }
  
  deh_section_t deh_section_cheat =
  {
      "Cheat",
      NULL,
      DEH_CheatStart,
      DEH_CheatParseLine,
      NULL,
      NULL,
  };
  
  