src/saveload/story_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 story_sl.cpp Code handling saving and loading of story pages */
  11
  12 #include "../stdafx.h"
  13 #include "../story_base.h"
  14
  15 #include "saveload_buffer.h"
  16
  17 /** Called after load to trash broken pages. */
  18 void AfterLoadStoryBook(const SavegameTypeVersion *stv)
  19 {
  20         if (IsOTTDSavegameVersionBefore(stv, 185)) {
  21                 /* Trash all story pages and page elements because
  22                  * they were saved with wrong data types.
  23                  */
  24                 StoryPageElement::pool.CleanPool();
  25                 StoryPage::pool.CleanPool();
  26         }
  27 }
  28
  29 static const SaveLoad _story_page_elements_desc[] = {
  30         SLE_VAR(StoryPageElement, sort_value,    SLE_FILE_U16 | SLE_VAR_U32,  , ,   0, 184),
  31         SLE_VAR(StoryPageElement, sort_value,    SLE_UINT32,                 0, , 185,    ),
  32         SLE_VAR(StoryPageElement, page,          SLE_UINT16),
  33         SLE_VAR(StoryPageElement, type,          SLE_FILE_U16 | SLE_VAR_U8,   , ,   0, 184),
  34         SLE_VAR(StoryPageElement, type,          SLE_UINT8,                  0, , 185,    ),
  35         SLE_VAR(StoryPageElement, referenced_id, SLE_UINT32),
  36         SLE_STR(StoryPageElement, text,          SLS_STR | SLS_ALLOW_CONTROL, 0),
  37         SLE_END()
  38 };
  39
  40 static void Save_STORY_PAGE_ELEMENT(SaveDumper *dumper)
  41 {
  42         StoryPageElement *s;
  43         FOR_ALL_STORY_PAGE_ELEMENTS(s) {
  44                 dumper->WriteElement(s->index, s, _story_page_elements_desc);
  45         }
  46 }
  47
  48 static void Load_STORY_PAGE_ELEMENT(LoadBuffer *reader)
  49 {
  50         int index;
  51         uint32 max_sort_value = 0;
  52         while ((index = reader->IterateChunk()) != -1) {
  53                 StoryPageElement *s = new (index) StoryPageElement();
  54                 reader->ReadObject(s, _story_page_elements_desc);
  55                 if (s->sort_value > max_sort_value) {
  56                         max_sort_value = s->sort_value;
  57                 }
  58         }
  59         /* Update the next sort value, so that the next
  60          * created page is shown after all existing pages.
  61          */
  62         _story_page_element_next_sort_value = max_sort_value + 1;
  63 }
  64
  65 static const SaveLoad _story_pages_desc[] = {
  66         SLE_VAR(StoryPage, sort_value, SLE_FILE_U16 | SLE_VAR_U32,  , ,   0, 184),
  67         SLE_VAR(StoryPage, sort_value, SLE_UINT32,                 0, , 185,    ),
  68         SLE_VAR(StoryPage, date,       SLE_UINT32),
  69         SLE_VAR(StoryPage, company,    SLE_FILE_U16 | SLE_VAR_U8,   , ,   0, 184),
  70         SLE_VAR(StoryPage, company,    SLE_UINT8,                  0, , 185,    ),
  71         SLE_STR(StoryPage, title,      SLS_STR | SLS_ALLOW_CONTROL, 0),
  72         SLE_END()
  73 };
  74
  75 static void Save_STORY_PAGE(SaveDumper *dumper)
  76 {
  77         StoryPage *s;
  78         FOR_ALL_STORY_PAGES(s) {
  79                 dumper->WriteElement(s->index, s, _story_pages_desc);
  80         }
  81 }
  82
  83 static void Load_STORY_PAGE(LoadBuffer *reader)
  84 {
  85         int index;
  86         uint32 max_sort_value = 0;
  87         while ((index = reader->IterateChunk()) != -1) {
  88                 StoryPage *s = new (index) StoryPage();
  89                 reader->ReadObject(s, _story_pages_desc);
  90                 if (s->sort_value > max_sort_value) {
  91                         max_sort_value = s->sort_value;
  92                 }
  93         }
  94         /* Update the next sort value, so that the next
  95          * created page is shown after all existing pages.
  96          */
  97         _story_page_next_sort_value = max_sort_value + 1;
  98 }
  99
 100 extern const ChunkHandler _story_page_chunk_handlers[] = {
 101         { 'STPE', Save_STORY_PAGE_ELEMENT, Load_STORY_PAGE_ELEMENT, NULL, NULL, CH_ARRAY},
 102         { 'STPA', Save_STORY_PAGE, Load_STORY_PAGE, NULL, NULL, CH_ARRAY | CH_LAST},
 103 };