diff options
Diffstat (limited to 'engines/sherlock/saveload.cpp')
| -rw-r--r-- | engines/sherlock/saveload.cpp | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/engines/sherlock/saveload.cpp b/engines/sherlock/saveload.cpp new file mode 100644 index 0000000000..ddf4917a34 --- /dev/null +++ b/engines/sherlock/saveload.cpp @@ -0,0 +1,484 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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. + * + */ + +#include "sherlock/saveload.h" +#include "sherlock/surface.h" +#include "sherlock/sherlock.h" +#include "common/system.h" +#include "graphics/scaler.h" +#include "graphics/thumbnail.h" + +namespace Sherlock { + +const int ENV_POINTS[6][3] = { + { 41, 80, 61 }, // Exit + { 81, 120, 101 }, // Load + { 121, 160, 141 }, // Save + { 161, 200, 181 }, // Up + { 201, 240, 221 }, // Down + { 241, 280, 261 } // Quit +}; + +static const char *const EMPTY_SAVEGAME_SLOT = "-EMPTY-"; +static const char *const SAVEGAME_STR = "SHLK"; +#define SAVEGAME_STR_SIZE 4 + +/*----------------------------------------------------------------*/ + +SaveManager::SaveManager(SherlockEngine *vm, const Common::String &target) : + _vm(vm), _target(target) { + _saveThumb = nullptr; + _envMode = SAVEMODE_NONE; + _justLoaded = false; + _savegameIndex = 0; +} + +SaveManager::~SaveManager() { + if (_saveThumb) { + _saveThumb->free(); + delete _saveThumb; + } +} + +void SaveManager::drawInterface() { + Screen &screen = *_vm->_screen; + UserInterface &ui = *_vm->_ui; + + // Create a list of savegame slots + createSavegameList(); + + screen._backBuffer1.fillRect(Common::Rect(0, CONTROLS_Y, SHERLOCK_SCREEN_WIDTH, CONTROLS_Y + 10), BORDER_COLOR); + screen._backBuffer1.fillRect(Common::Rect(0, CONTROLS_Y + 10, 2, SHERLOCK_SCREEN_HEIGHT), BORDER_COLOR); + screen._backBuffer1.fillRect(Common::Rect(318, CONTROLS_Y + 10, SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT), BORDER_COLOR); + screen._backBuffer1.fillRect(Common::Rect(0, 199, SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT), BORDER_COLOR); + screen._backBuffer1.fillRect(Common::Rect(2, CONTROLS_Y + 10, SHERLOCK_SCREEN_WIDTH - 2, SHERLOCK_SCREEN_HEIGHT - 2), INV_BACKGROUND); + + screen.makeButton(Common::Rect(ENV_POINTS[0][0], CONTROLS_Y, ENV_POINTS[0][1], CONTROLS_Y + 10), + ENV_POINTS[0][2] - screen.stringWidth("Exit") / 2, "Exit"); + screen.makeButton(Common::Rect(ENV_POINTS[1][0], CONTROLS_Y, ENV_POINTS[1][1], CONTROLS_Y + 10), + ENV_POINTS[1][2] - screen.stringWidth("Load") / 2, "Load"); + screen.makeButton(Common::Rect(ENV_POINTS[2][0], CONTROLS_Y, ENV_POINTS[2][1], CONTROLS_Y + 10), + ENV_POINTS[2][2] - screen.stringWidth("Save") / 2, "Save"); + screen.makeButton(Common::Rect(ENV_POINTS[3][0], CONTROLS_Y, ENV_POINTS[3][1], CONTROLS_Y + 10), + ENV_POINTS[3][2] - screen.stringWidth("Up") / 2, "Up"); + screen.makeButton(Common::Rect(ENV_POINTS[4][0], CONTROLS_Y, ENV_POINTS[4][1], CONTROLS_Y + 10), + ENV_POINTS[4][2] - screen.stringWidth("Down") / 2, "Down"); + screen.makeButton(Common::Rect(ENV_POINTS[5][0], CONTROLS_Y, ENV_POINTS[5][1], CONTROLS_Y + 10), + ENV_POINTS[5][2] - screen.stringWidth("Quit") / 2, "Quit"); + + if (!_savegameIndex) + screen.buttonPrint(Common::Point(ENV_POINTS[3][2], CONTROLS_Y), COMMAND_NULL, 0, "Up"); + + if (_savegameIndex == MAX_SAVEGAME_SLOTS - ONSCREEN_FILES_COUNT) + screen.buttonPrint(Common::Point(ENV_POINTS[4][2], CONTROLS_Y), COMMAND_NULL, 0, "Down"); + + for (int idx = _savegameIndex; idx < _savegameIndex + ONSCREEN_FILES_COUNT; ++idx) { + screen.gPrint(Common::Point(6, CONTROLS_Y + 11 + (idx - _savegameIndex) * 10), + INV_FOREGROUND, "%d.", idx + 1); + screen.gPrint(Common::Point(24, CONTROLS_Y + 11 + (idx - _savegameIndex) * 10), + INV_FOREGROUND, "%s", _savegames[idx].c_str()); + } + + if (!ui._slideWindows) { + screen.slamRect(Common::Rect(0, CONTROLS_Y, SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT)); + } else { + ui.summonWindow(); + } + + _envMode = SAVEMODE_NONE; +} + +void SaveManager::createSavegameList() { + Screen &screen = *_vm->_screen; + + _savegames.clear(); + for (int idx = 0; idx < MAX_SAVEGAME_SLOTS; ++idx) + _savegames.push_back(EMPTY_SAVEGAME_SLOT); + + SaveStateList saveList = getSavegameList(_target); + for (uint idx = 0; idx < saveList.size(); ++idx) { + int slot = saveList[idx].getSaveSlot() - 1; + if (slot >= 0 && slot < MAX_SAVEGAME_SLOTS) + _savegames[slot] = saveList[idx].getDescription(); + } + + // Ensure the names will fit on the screen + for (uint idx = 0; idx < _savegames.size(); ++idx) { + int width = screen.stringWidth(_savegames[idx]) + 24; + if (width > 308) { + // It won't fit in, so remove characters until it does + do { + width -= screen.charWidth(_savegames[idx].lastChar()); + _savegames[idx].deleteLastChar(); + } while (width > 300); + } + } +} + +SaveStateList SaveManager::getSavegameList(const Common::String &target) { + Common::SaveFileManager *saveFileMan = g_system->getSavefileManager(); + Common::StringArray filenames; + Common::String saveDesc; + Common::String pattern = Common::String::format("%s.0??", target.c_str()); + SherlockSavegameHeader header; + + filenames = saveFileMan->listSavefiles(pattern); + sort(filenames.begin(), filenames.end()); // Sort to get the files in numerical order + + SaveStateList saveList; + for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) { + const char *ext = strrchr(file->c_str(), '.'); + int slot = ext ? atoi(ext + 1) : -1; + + if (slot >= 0 && slot < MAX_SAVEGAME_SLOTS) { + Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(*file); + + if (in) { + readSavegameHeader(in, header); + saveList.push_back(SaveStateDescriptor(slot, header._saveName)); + + header._thumbnail->free(); + delete header._thumbnail; + delete in; + } + } + } + + return saveList; +} + +bool SaveManager::readSavegameHeader(Common::InSaveFile *in, SherlockSavegameHeader &header) { + char saveIdentBuffer[SAVEGAME_STR_SIZE + 1]; + header._thumbnail = nullptr; + + // Validate the header Id + in->read(saveIdentBuffer, SAVEGAME_STR_SIZE + 1); + if (strncmp(saveIdentBuffer, SAVEGAME_STR, SAVEGAME_STR_SIZE)) + return false; + + header._version = in->readByte(); + if (header._version > SHERLOCK_SAVEGAME_VERSION) + return false; + + // Read in the string + header._saveName.clear(); + char ch; + while ((ch = (char)in->readByte()) != '\0') header._saveName += ch; + + // Get the thumbnail + header._thumbnail = Graphics::loadThumbnail(*in); + if (!header._thumbnail) + return false; + + // Read in save date/time + header._year = in->readSint16LE(); + header._month = in->readSint16LE(); + header._day = in->readSint16LE(); + header._hour = in->readSint16LE(); + header._minute = in->readSint16LE(); + header._totalFrames = in->readUint32LE(); + + return true; +} + +void SaveManager::writeSavegameHeader(Common::OutSaveFile *out, SherlockSavegameHeader &header) { + // Write out a savegame header + out->write(SAVEGAME_STR, SAVEGAME_STR_SIZE + 1); + + out->writeByte(SHERLOCK_SAVEGAME_VERSION); + + // Write savegame name + out->write(header._saveName.c_str(), header._saveName.size()); + out->writeByte('\0'); + + // Handle the thumbnail. If there's already one set by the game, create one + if (!_saveThumb) + createThumbnail(); + Graphics::saveThumbnail(*out, *_saveThumb); + + _saveThumb->free(); + delete _saveThumb; + _saveThumb = nullptr; + + // Write out the save date/time + TimeDate td; + g_system->getTimeAndDate(td); + out->writeSint16LE(td.tm_year + 1900); + out->writeSint16LE(td.tm_mon + 1); + out->writeSint16LE(td.tm_mday); + out->writeSint16LE(td.tm_hour); + out->writeSint16LE(td.tm_min); + out->writeUint32LE(_vm->_events->getFrameCounter()); +} + +void SaveManager::createThumbnail() { + if (_saveThumb) { + _saveThumb->free(); + delete _saveThumb; + } + + uint8 thumbPalette[PALETTE_SIZE]; + _vm->_screen->getPalette(thumbPalette); + _saveThumb = new Graphics::Surface(); + ::createThumbnail(_saveThumb, (const byte *)_vm->_screen->getPixels(), SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT, thumbPalette); +} + +int SaveManager::getHighlightedButton() const { + Common::Point pt = _vm->_events->mousePos(); + + for (int idx = 0; idx < 6; ++idx) { + if (pt.x > ENV_POINTS[idx][0] && pt.x < ENV_POINTS[idx][1] && pt.y > CONTROLS_Y + && pt.y < (CONTROLS_Y + 10)) + return idx; + } + + return -1; +} + +void SaveManager::highlightButtons(int btnIndex) { + Screen &screen = *_vm->_screen; + byte color = (btnIndex == 0) ? COMMAND_HIGHLIGHTED : COMMAND_FOREGROUND; + + screen.buttonPrint(Common::Point(ENV_POINTS[0][2], CONTROLS_Y), color, 1, "Exit"); + + if ((btnIndex == 1) || ((_envMode == SAVEMODE_LOAD) && (btnIndex != 2))) + screen.buttonPrint(Common::Point(ENV_POINTS[1][2], CONTROLS_Y), COMMAND_HIGHLIGHTED, true, "Load"); + else + screen.buttonPrint(Common::Point(ENV_POINTS[1][2], CONTROLS_Y), COMMAND_FOREGROUND, true, "Load"); + + if ((btnIndex == 2) || ((_envMode == SAVEMODE_SAVE) && (btnIndex != 1))) + screen.buttonPrint(Common::Point(ENV_POINTS[2][2], CONTROLS_Y), COMMAND_HIGHLIGHTED, true, "Save"); + else + screen.buttonPrint(Common::Point(ENV_POINTS[2][2], CONTROLS_Y), COMMAND_FOREGROUND, true, "Save"); + + if (btnIndex == 3 && _savegameIndex) + screen.buttonPrint(Common::Point(ENV_POINTS[3][2], CONTROLS_Y), COMMAND_HIGHLIGHTED, true, "Up"); + else + if (_savegameIndex) + screen.buttonPrint(Common::Point(ENV_POINTS[3][2], CONTROLS_Y), COMMAND_FOREGROUND, true, "Up"); + + if ((btnIndex == 4) && (_savegameIndex < MAX_SAVEGAME_SLOTS - 5)) + screen.buttonPrint(Common::Point(ENV_POINTS[4][2], CONTROLS_Y), COMMAND_HIGHLIGHTED, true, "Down"); + else if (_savegameIndex < (MAX_SAVEGAME_SLOTS - 5)) + screen.buttonPrint(Common::Point(ENV_POINTS[4][2], CONTROLS_Y), COMMAND_FOREGROUND, true, "Down"); + + color = (btnIndex == 5) ? COMMAND_HIGHLIGHTED : COMMAND_FOREGROUND; + screen.buttonPrint(Common::Point(ENV_POINTS[5][2], CONTROLS_Y), color, 1, "Quit"); +} + +void SaveManager::loadGame(int slot) { + Common::InSaveFile *saveFile = g_system->getSavefileManager()->openForLoading( + generateSaveName(slot)); + if (!saveFile) + return; + + // Load the savaegame header + SherlockSavegameHeader header; + if (!readSavegameHeader(saveFile, header)) + error("Invalid savegame"); + + if (header._thumbnail) { + header._thumbnail->free(); + delete header._thumbnail; + } + + // Synchronize the savegame data + Common::Serializer s(saveFile, nullptr); + synchronize(s); + + delete saveFile; +} + +void SaveManager::saveGame(int slot, const Common::String &name) { + Common::OutSaveFile *out = g_system->getSavefileManager()->openForSaving( + generateSaveName(slot)); + + SherlockSavegameHeader header; + header._saveName = name; + writeSavegameHeader(out, header); + + // Synchronize the savegame data + Common::Serializer s(nullptr, out); + synchronize(s); + + out->finalize(); + delete out; +} + +Common::String SaveManager::generateSaveName(int slot) { + return Common::String::format("%s.%03d", _target.c_str(), slot); +} + +void SaveManager::synchronize(Common::Serializer &s) { + Inventory &inv = *_vm->_inventory; + Journal &journal = *_vm->_journal; + Map &map = *_vm->_map; + People &people = *_vm->_people; + Scene &scene = *_vm->_scene; + Screen &screen = *_vm->_screen; + Talk &talk = *_vm->_talk; + + int oldFont = screen.fontNumber(); + + inv.synchronize(s); + journal.synchronize(s); + people.synchronize(s); + map.synchronize(s); + scene.synchronize(s); + screen.synchronize(s); + talk.synchronize(s); + _vm->synchronize(s); + + if (screen.fontNumber() != oldFont) + journal.resetPosition(); + + _justLoaded = true; +} + +bool SaveManager::checkGameOnScreen(int slot) { + Screen &screen = *_vm->_screen; + + // Check if it's already on-screen + if (slot != -1 && (slot < _savegameIndex || slot >= (_savegameIndex + ONSCREEN_FILES_COUNT))) { + _savegameIndex = slot; + + screen._backBuffer1.fillRect(Common::Rect(3, CONTROLS_Y + 11, SHERLOCK_SCREEN_WIDTH - 2, + SHERLOCK_SCREEN_HEIGHT - 1), INV_BACKGROUND); + + for (int idx = _savegameIndex; idx < (_savegameIndex + 5); ++idx) { + screen.gPrint(Common::Point(6, CONTROLS_Y + 11 + (idx - _savegameIndex) * 10), + INV_FOREGROUND, "%d.", idx + 1); + screen.gPrint(Common::Point(24, CONTROLS_Y + 11 + (idx - _savegameIndex) * 10), + INV_FOREGROUND, "%s", _savegames[idx].c_str()); + } + + screen.slamRect(Common::Rect(3, CONTROLS_Y + 11, 318, SHERLOCK_SCREEN_HEIGHT)); + + byte color = !_savegameIndex ? COMMAND_NULL : COMMAND_FOREGROUND; + screen.buttonPrint(Common::Point(ENV_POINTS[3][2], CONTROLS_Y), color, 1, "Up"); + + color = (_savegameIndex == (MAX_SAVEGAME_SLOTS - 5)) ? COMMAND_NULL : COMMAND_FOREGROUND; + screen.buttonPrint(Common::Point(ENV_POINTS[4][2], CONTROLS_Y), color, 1, "Down"); + + return true; + } + + return false; +} + +bool SaveManager::promptForDescription(int slot) { + Events &events = *_vm->_events; + Scene &scene = *_vm->_scene; + Screen &screen = *_vm->_screen; + Talk &talk = *_vm->_talk; + int xp, yp; + bool flag = false; + + screen.buttonPrint(Common::Point(ENV_POINTS[0][2], CONTROLS_Y), COMMAND_NULL, true, "Exit"); + screen.buttonPrint(Common::Point(ENV_POINTS[1][2], CONTROLS_Y), COMMAND_NULL, true, "Load"); + screen.buttonPrint(Common::Point(ENV_POINTS[2][2], CONTROLS_Y), COMMAND_NULL, true, "Save"); + screen.buttonPrint(Common::Point(ENV_POINTS[3][2], CONTROLS_Y), COMMAND_NULL, true, "Up"); + screen.buttonPrint(Common::Point(ENV_POINTS[4][2], CONTROLS_Y), COMMAND_NULL, true, "Down"); + screen.buttonPrint(Common::Point(ENV_POINTS[5][2], CONTROLS_Y), COMMAND_NULL, true, "Quit"); + + Common::String saveName = _savegames[slot]; + if (isSlotEmpty(slot)) { + // It's an empty slot, so start off with an empty save name + saveName = ""; + + yp = CONTROLS_Y + 12 + (slot - _savegameIndex) * 10; + screen.vgaBar(Common::Rect(24, yp, 85, yp + 9), INV_BACKGROUND); + } + + screen.print(Common::Point(6, CONTROLS_Y + 12 + (slot - _savegameIndex) * 10), TALK_FOREGROUND, "%d.", slot + 1); + screen.print(Common::Point(24, CONTROLS_Y + 12 + (slot - _savegameIndex) * 10), TALK_FOREGROUND, "%s", saveName.c_str()); + xp = 24 + screen.stringWidth(saveName); + yp = CONTROLS_Y + 12 + (slot - _savegameIndex) * 10; + + int done = 0; + do { + while (!_vm->shouldQuit() && !events.kbHit()) { + scene.doBgAnim(); + + if (talk._talkToAbort) + return false; + + // Allow event processing + events.pollEventsAndWait(); + events.setButtonState(); + + flag = !flag; + if (flag) + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_FOREGROUND); + else + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_BACKGROUND); + } + if (_vm->shouldQuit()) + return false; + + // Get the next keypress + Common::KeyState keyState = events.getKey(); + + if (keyState.keycode == Common::KEYCODE_BACKSPACE && saveName.size() > 0) { + // Delete character of save name + screen.vgaBar(Common::Rect(xp - screen.charWidth(saveName.lastChar()), yp - 1, + xp + 8, yp + 9), INV_BACKGROUND); + xp -= screen.charWidth(saveName.lastChar()); + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_FOREGROUND); + saveName.deleteLastChar(); + + } else if (keyState.keycode == Common::KEYCODE_RETURN && saveName.compareToIgnoreCase(EMPTY_SAVEGAME_SLOT)) { + done = 1; + + } else if (keyState.keycode == Common::KEYCODE_ESCAPE) { + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_BACKGROUND); + done = -1; + + } else if (keyState.ascii >= ' ' && keyState.ascii <= 'z' && saveName.size() < 50 + && (xp + screen.charWidth(keyState.ascii)) < 308) { + char c = (char)keyState.ascii; + + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_BACKGROUND); + screen.print(Common::Point(xp, yp), TALK_FOREGROUND, "%c", c); + xp += screen.charWidth(c); + screen.vgaBar(Common::Rect(xp, yp - 1, xp + 8, yp + 9), INV_FOREGROUND); + saveName += c; + } + } while (!done); + + if (done == 1) { + // Enter key perssed + _savegames[slot] = saveName; + } else { + done = 0; + _envMode = SAVEMODE_NONE; + highlightButtons(-1); + } + + return done == 1; +} + +bool SaveManager::isSlotEmpty(int slot) const { + return _savegames[slot].equalsIgnoreCase(EMPTY_SAVEGAME_SLOT); +} + +} // End of namespace Sherlock |