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+/* 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.
+ *
+ */
+
+#ifndef SHERLOCK_SAVELOAD_H
+#define SHERLOCK_SAVELOAD_H
+
+#include "common/scummsys.h"
+#include "common/savefile.h"
+#include "common/serializer.h"
+#include "common/str-array.h"
+#include "engines/savestate.h"
+#include "graphics/surface.h"
+
+namespace Sherlock {
+
+#define MAX_SAVEGAME_SLOTS 99
+#define ONSCREEN_FILES_COUNT 5
+
+enum {
+ CURRENT_SAVEGAME_VERSION = 2,
+ MINIMUM_SAVEGAME_VERSION = 2
+};
+
+enum SaveMode { SAVEMODE_NONE = 0, SAVEMODE_LOAD = 1, SAVEMODE_SAVE = 2 };
+
+extern const char *const EMPTY_SAVEGAME_SLOT;
+
+struct SherlockSavegameHeader {
+ uint8 _version;
+ Common::String _saveName;
+ Graphics::Surface *_thumbnail;
+ int _year, _month, _day;
+ int _hour, _minute;
+ int _totalFrames;
+};
+
+class SherlockEngine;
+
+
+/**
+ * Derived serializer class with extra synchronization types
+ */
+class Serializer : public Common::Serializer {
+public:
+ Serializer(Common::SeekableReadStream *in, Common::WriteStream *out) : Common::Serializer(in, out) {}
+
+ /**
+ * New method to allow setting the version
+ */
+ void setSaveVersion(byte version) { _version = version; }
+};
+
+class SaveManager {
+protected:
+ SherlockEngine *_vm;
+ Common::String _target;
+ Graphics::Surface *_saveThumb;
+
+ /**
+ * Build up a savegame list, with empty slots given an explicit Empty message
+ */
+ void createSavegameList();
+
+ /**
+ * Synchronize the data for a savegame
+ */
+ void synchronize(Serializer &s);
+public:
+ Common::StringArray _savegames;
+ int _savegameIndex;
+ SaveMode _envMode;
+ bool _justLoaded;
+public:
+ static SaveManager *init(SherlockEngine *vm, const Common::String &target);
+ SaveManager(SherlockEngine *vm, const Common::String &target);
+ virtual ~SaveManager();
+
+ /**
+ * Creates a thumbnail for the current on-screen contents
+ */
+ void createThumbnail();
+
+ /**
+ * Load a list of savegames
+ */
+ static SaveStateList getSavegameList(const Common::String &target);
+
+ /**
+ * Support method that generates a savegame name
+ * @param slot Slot number
+ */
+ Common::String generateSaveName(int slot);
+
+ /**
+ * Write out the header information for a savegame
+ */
+ void writeSavegameHeader(Common::OutSaveFile *out, SherlockSavegameHeader &header);
+
+ /**
+ * Read in the header information for a savegame
+ */
+ static bool readSavegameHeader(Common::InSaveFile *in, SherlockSavegameHeader &header);
+
+ /**
+ * Return the index of the button the mouse is over, if any
+ */
+ int getHighlightedButton() const;
+
+ /**
+ * Handle highlighting buttons
+ */
+ void highlightButtons(int btnIndex);
+
+ /**
+ * Load the game in the specified slot
+ */
+ void loadGame(int slot);
+
+ /**
+ * Save the game in the specified slot with the given name
+ */
+ void saveGame(int slot, const Common::String &name);
+
+ /**
+ * Returns true if the given save slot is empty
+ */
+ bool isSlotEmpty(int slot) const;
+};
+
+} // End of namespace Sherlock
+
+#endif