Initial commit

engines/grim/savegame.h

@@ -0,0 +1,104 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef GRIM_SAVEGAME_H
+#define GRIM_SAVEGAME_H
+
+#include "common/savefile.h"
+
+#include "math/mathfwd.h"
+
+namespace Grim {
+
+class Color;
+
+class SaveGame {
+public:
+	static SaveGame *openForLoading(const Common::String &filename);
+	static SaveGame *openForSaving(const Common::String &filename);
+	~SaveGame();
+
+	/**
+	 * Major savegame version.
+	 * If a savegame has a different major version than SAVEGAME_MAJOR_VERSION
+	 * it cannot be loaded.
+	 */
+	static uint SAVEGAME_MAJOR_VERSION;
+	/**
+	 * Minor savegame version.
+	 * A savegame with a different minor version than SAVEGAME_MINOR_VERSION and
+	 * the same major version than SAVEGAME_MAJOR_VERSION is compatible with
+	 * the current loading code.
+	 */
+	static uint SAVEGAME_MINOR_VERSION;
+
+	bool isCompatible() const;
+
+	uint saveMajorVersion() const;
+	uint saveMinorVersion() const;
+	uint32 beginSection(uint32 sectionTag);
+	void endSection();
+	void read(void *data, int size);
+	void write(const void *data, int size);
+	uint64 readLEUint64();
+	uint32 readLEUint32();
+	uint16 readLEUint16();
+	int32 readLESint32();
+	bool readBool();
+	byte readByte();
+	void writeLEUint64(uint64 data);
+	void writeLEUint32(uint32 data);
+	void writeLEUint16(uint16 data);
+	void writeLESint32(int32 data);
+	void writeBool(bool data);
+	void writeByte(byte data);
+	void writeString(const Common::String &string);
+
+	void writeVector3d(const Math::Vector3d &vec);
+	void writeColor(const Grim::Color &color);
+	void writeFloat(float data);
+	Math::Vector3d readVector3d();
+	Grim::Color readColor();
+	float readFloat();
+	Common::String readString();
+
+	void checkAlloc(int size);
+
+protected:
+	SaveGame();
+
+	uint _majorVersion;
+	uint _minorVersion;
+	bool _saving;
+	Common::InSaveFile *_inSaveFile;
+	Common::OutSaveFile *_outSaveFile;
+	uint32 _currentSection;
+	uint32 _sectionSize;
+	uint32 _sectionAlloc;
+	uint32 _sectionPtr;
+	byte *_sectionBuffer;
+
+	static const int _allocAmmount = 1048576;
+};
+
+} // end of namespace Grim
+
+#endif