src/saveload/cheat_sl.cpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD 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, version 2.
   6  * OpenTTD 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.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file cheat_sl.cpp Code handling saving and loading of cheats */
  11
  12 #include "../stdafx.h"
  13 #include "../cheat_type.h"
  14
  15 #include "saveload.h"
  16
  17 #include "../safeguards.h"
  18
  19 /**
  20  * Save the cheat values.
  21  */
  22 static void Save_CHTS()
  23 {
  24         /* Cannot use lengthof because _cheats is of type Cheats, not Cheat */
  25         byte count = sizeof(_cheats) / sizeof(Cheat);
  26         Cheat *cht = (Cheat*) &_cheats;
  27         Cheat *cht_last = &cht[count];
  28
  29         SlSetLength(count * 2);
  30         for (; cht != cht_last; cht++) {
  31                 SlWriteByte(cht->been_used);
  32                 SlWriteByte(cht->value);
  33         }
  34 }
  35
  36 /**
  37  * Load the cheat values.
  38  */
  39 static void Load_CHTS()
  40 {
  41         Cheat *cht = (Cheat*)&_cheats;
  42         size_t count = SlGetFieldLength() / 2;
  43         /* Cannot use lengthof because _cheats is of type Cheats, not Cheat */
  44         if (count > sizeof(_cheats) / sizeof(Cheat)) SlErrorCorrupt("Too many cheat values");
  45
  46         for (uint i = 0; i < count; i++) {
  47                 cht[i].been_used = (SlReadByte() != 0);
  48                 cht[i].value     = (SlReadByte() != 0);
  49         }
  50 }
  51
  52 /** Chunk handlers related to cheats. */
  53 extern const ChunkHandler _cheat_chunk_handlers[] = {
  54         { 'CHTS', Save_CHTS, Load_CHTS, NULL, NULL, CH_RIFF | CH_LAST},
  55 };