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Diffstat (limited to 'sword2/save_rest.cpp')
| -rw-r--r-- | sword2/save_rest.cpp | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/sword2/save_rest.cpp b/sword2/save_rest.cpp deleted file mode 100644 index df03c21be3..0000000000 --- a/sword2/save_rest.cpp +++ /dev/null @@ -1,414 +0,0 @@ -/* Copyright (C) 1994-1998 Revolution Software Ltd. - * Copyright (C) 2003-2006 The ScummVM project - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ - */ - -// --------------------------------------------------------------------------- -// SAVE_REST.CPP save, restore & restart functions -// -// James 05feb97 -// -// "Jesus Saves", but could he Restore or Restart? He can now... -// -// --------------------------------------------------------------------------- - -#include "common/stdafx.h" -#include "common/savefile.h" -#include "sword2/sword2.h" -#include "sword2/defs.h" -#include "sword2/logic.h" -#include "sword2/mouse.h" -#include "sword2/resman.h" -#include "sword2/sound.h" - -namespace Sword2 { - -// A savegame consists of a header and the global variables - -// Max length of a savegame filename -#define MAX_FILENAME_LEN 128 - -/** - * Calculate size of required savegame buffer - */ - -uint32 Sword2Engine::findBufferSize() { - // Size of savegame header + size of global variables - return 212 + _resman->fetchLen(1); -} - -/** - * Save the game. - */ - -uint32 Sword2Engine::saveGame(uint16 slotNo, byte *desc) { - char description[SAVE_DESCRIPTION_LEN]; - uint32 bufferSize = findBufferSize(); - byte *saveBuffer = (byte *)malloc(bufferSize); - ScreenInfo *screenInfo = _screen->getScreenInfo(); - - memset(description, 0, sizeof(description)); - strncpy(description, (char *)desc, SAVE_DESCRIPTION_LEN - 1); - - Common::MemoryWriteStream writeS(saveBuffer, bufferSize); - - byte *globalVars = _resman->openResource(1); - byte *objectHub = _resman->openResource(CUR_PLAYER_ID) + ResHeader::size(); - - // Script no. 7 - 'george_savedata_request' calls fnPassPlayerSaveData - _logic->runResScript(CUR_PLAYER_ID, 7); - - writeS.writeUint32LE(0); // Checksum - writeS.write(description, SAVE_DESCRIPTION_LEN); - writeS.writeUint32LE(_resman->fetchLen(1)); - writeS.writeUint32LE(screenInfo->background_layer_id); - writeS.writeUint32LE(_logic->getRunList()); - writeS.writeUint32LE(screenInfo->feet_x); - writeS.writeUint32LE(screenInfo->feet_y); - writeS.writeUint32LE(_sound->getLoopingMusicId()); - writeS.write(objectHub, ObjectHub::size()); - writeS.write(_logic->_saveLogic, ObjectLogic::size()); - writeS.write(_logic->_saveGraphic, ObjectGraphic::size()); - writeS.write(_logic->_saveMega, ObjectMega::size()); - writeS.write(globalVars, _resman->fetchLen(1)); - - WRITE_LE_UINT32(saveBuffer, calcChecksum(saveBuffer + 4, bufferSize - 4)); - - _resman->closeResource(CUR_PLAYER_ID); - _resman->closeResource(1); - - uint32 errorCode = saveData(slotNo, saveBuffer, bufferSize); - - free(saveBuffer); - - if (errorCode != SR_OK) { - uint32 textId; - - switch (errorCode) { - case SR_ERR_FILEOPEN: - textId = TEXT_SAVE_CANT_OPEN; - break; - default: - textId = TEXT_SAVE_FAILED; - break; - } - - _screen->displayMsg(fetchTextLine(_resman->openResource(textId / SIZE), textId & 0xffff) + 2, 0); - } - - return errorCode; -} - -uint32 Sword2Engine::saveData(uint16 slotNo, byte *buffer, uint32 bufferSize) { - char saveFileName[MAX_FILENAME_LEN]; - - sprintf(saveFileName, "%s.%.3d", _targetName.c_str(), slotNo); - - Common::OutSaveFile *out; - - if (!(out = _saveFileMan->openForSaving(saveFileName))) { - return SR_ERR_FILEOPEN; - } - - out->write(buffer, bufferSize); - out->flush(); - - if (!out->ioFailed()) { - delete out; - return SR_OK; - } - - delete out; - return SR_ERR_WRITEFAIL; -} - -/** - * Restore the game. - */ - -uint32 Sword2Engine::restoreGame(uint16 slotNo) { - uint32 bufferSize = findBufferSize(); - byte *saveBufferMem = (byte *)malloc(bufferSize); - - uint32 errorCode = restoreData(slotNo, saveBufferMem, bufferSize); - - // If it was read in successfully, then restore the game from the - // buffer & free the buffer. Note that restoreFromBuffer() frees the - // buffer in order to clear it from memory before loading in the new - // screen and runlist, so we only need to free it in case of failure. - - if (errorCode == SR_OK) - errorCode = restoreFromBuffer(saveBufferMem, bufferSize); - else - free(saveBufferMem); - - if (errorCode != SR_OK) { - uint32 textId; - - switch (errorCode) { - case SR_ERR_FILEOPEN: - textId = TEXT_RESTORE_CANT_OPEN; - break; - case SR_ERR_INCOMPATIBLE: - textId = TEXT_RESTORE_INCOMPATIBLE; - break; - default: - textId = TEXT_RESTORE_FAILED; - break; - } - - _screen->displayMsg(fetchTextLine(_resman->openResource(textId / SIZE), textId & 0xffff) + 2, 0); - } else { - // Prime system with a game cycle - - // Reset the graphic 'BuildUnit' list before a new logic list - // (see fnRegisterFrame) - _screen->resetRenderLists(); - - // Reset the mouse hot-spot list. See fnRegisterMouse() - // and fnRegisterFrame() - _mouse->resetMouseList(); - - if (_logic->processSession()) - error("restore 1st cycle failed??"); - } - - // Force the game engine to pick a cursor. This appears to be needed - // when using the -x command-line option to restore a game. - _mouse->setMouseTouching(1); - return errorCode; -} - -uint32 Sword2Engine::restoreData(uint16 slotNo, byte *buffer, uint32 bufferSize) { - char saveFileName[MAX_FILENAME_LEN]; - - sprintf(saveFileName, "%s.%.3d", _targetName.c_str(), slotNo); - - Common::InSaveFile *in; - - if (!(in = _saveFileMan->openForLoading(saveFileName))) { - // error: couldn't open file - return SR_ERR_FILEOPEN; - } - - // Read savegame into the buffer - uint32 itemsRead = in->read(buffer, bufferSize); - - delete in; - - if (itemsRead != bufferSize) { - // We didn't get all of it. At the moment we have no way of - // knowing why, so assume that it's an incompatible savegame. - - return SR_ERR_INCOMPATIBLE; - } - - return SR_OK; -} - -uint32 Sword2Engine::restoreFromBuffer(byte *buffer, uint32 size) { - Common::MemoryReadStream readS(buffer, size); - - // Calc checksum & check that aginst the value stored in the header - - if (readS.readUint32LE() != calcChecksum(buffer + 4, size - 4)) { - free(buffer); - return SR_ERR_INCOMPATIBLE; - } - - readS.seek(SAVE_DESCRIPTION_LEN, SEEK_CUR); - - // Check savegame against length of current global variables resource - // This would most probably be trapped by the checksum test anyway, - // but it doesn't do any harm to check this as well. - - // Historical note: During development, earlier savegames would often - // be shorter than the current expected length. - - if (readS.readUint32LE() != _resman->fetchLen(1)) { - free(buffer); - return SR_ERR_INCOMPATIBLE; - } - - byte *globalVars = _resman->openResource(1); - byte *objectHub = _resman->openResource(CUR_PLAYER_ID) + ResHeader::size(); - - uint32 screenId = readS.readUint32LE(); - uint32 runListId = readS.readUint32LE(); - uint32 feetX = readS.readUint32LE(); - uint32 feetY = readS.readUint32LE(); - uint32 musicId = readS.readUint32LE(); - - // Trash all resources from memory except player object & global vars - _resman->killAll(false); - _logic->resetKillList(); - - readS.read(objectHub, ObjectHub::size()); - readS.read(_logic->_saveLogic, ObjectLogic::size()); - readS.read(_logic->_saveGraphic, ObjectGraphic::size()); - readS.read(_logic->_saveMega, ObjectMega::size()); - - // Fill out the player object structures from the savegame structures. - // Also run the appropriate scripts to set up George's anim tables and - // walkdata, and Nico's anim tables. - - // Script no. 8 - 'george_savedata_return' calls fnGetPlayerSaveData - _logic->runResScript(CUR_PLAYER_ID, 8); - - // Script no. 14 - 'set_up_nico_anim_tables' - _logic->runResScript(CUR_PLAYER_ID, 14); - - // Which megaset was the player at the time of saving? - ObjectMega obMega(_logic->_saveMega); - - uint32 scriptNo = 0; - - switch (obMega.getMegasetRes()) { - case 36: // GeoMega: - scriptNo = 9; // script no.9 - 'player_is_george' - break; - case 2003: // GeoMegaB: - scriptNo = 13; // script no.13 - 'player_is_georgeB' - break; - case 1366: // NicMegaA: - scriptNo = 11; // script no.11 - 'player_is_nicoA' - break; - case 1437: // NicMegaB: - scriptNo = 12; // script no.12 - 'player_is_nicoB' - break; - case 1575: // NicMegaC: - scriptNo = 10; // script no.10 - 'player_is_nicoC' - break; - } - - _logic->runResScript(CUR_PLAYER_ID, scriptNo); - - // Copy variables from savegame buffer to memory - readS.read(globalVars, _resman->fetchLen(1)); - - _resman->closeResource(CUR_PLAYER_ID); - _resman->closeResource(1); - - free(buffer); - - int32 pars[2]; - - pars[0] = screenId; - pars[1] = 1; - _logic->fnInitBackground(pars); - - ScreenInfo *screenInfo = _screen->getScreenInfo(); - - // So palette not restored immediately after control panel - we want to - // fade up instead! - screenInfo->new_palette = 99; - - // These need setting after the defaults get set in fnInitBackground. - // Remember that these can change through the game, so need saving & - // restoring too. - - screenInfo->feet_x = feetX; - screenInfo->feet_y = feetY; - - // Start the new run list - _logic->expressChangeSession(runListId); - - // Force in the new scroll position, so unsightly scroll-catch-up does - // not occur when screen first draws after returning from restore panel - - // Set the screen record of player position - ready for setScrolling() - - screenInfo->player_feet_x = obMega.getFeetX(); - screenInfo->player_feet_y = obMega.getFeetY(); - - // if this screen is wide, recompute the scroll offsets now - if (screenInfo->scroll_flag) - _screen->setScrolling(); - - // Any music required will be started after we've returned from - // restoreControl() - see systemMenuMouse() in mouse.cpp! - - // Restart any looping music. Originally this was - and still is - done - // in systemMenuMouse(), but with ScummVM we have other ways of - // restoring savegames so it's easier to put it here as well. - - if (musicId) { - pars[0] = musicId; - pars[1] = FX_LOOP; - _logic->fnPlayMusic(pars); - } else - _logic->fnStopMusic(NULL); - - return SR_OK; -} - -/** - * Get the description of a savegame - */ - -uint32 Sword2Engine::getSaveDescription(uint16 slotNo, byte *description) { - char saveFileName[MAX_FILENAME_LEN]; - - sprintf(saveFileName, "%s.%.3d", _targetName.c_str(), slotNo); - - Common::InSaveFile *in; - - if (!(in = _saveFileMan->openForLoading(saveFileName))) { - return SR_ERR_FILEOPEN; - } - - in->readUint32LE(); - in->read(description, SAVE_DESCRIPTION_LEN); - - delete in; - return SR_OK; -} - -bool Sword2Engine::saveExists() { - for (int i = 0; i <= 99; i++) - if (saveExists(i)) - return true; - return false; -} - -bool Sword2Engine::saveExists(uint16 slotNo) { - char saveFileName[MAX_FILENAME_LEN]; - - sprintf(saveFileName, "%s.%.3d", _targetName.c_str(), slotNo); - - Common::InSaveFile *in; - - if (!(in = _saveFileMan->openForLoading(saveFileName))) { - return false; - } - - delete in; - return true; -} - -uint32 Sword2Engine::calcChecksum(byte *buffer, uint32 size) { - uint32 total = 0; - - for (uint32 pos = 0; pos < size; pos++) - total += buffer[pos]; - - return total; -} - -} // End of namespace Sword2 |