Initial commit

engines/glk/alan2/alan2.h

@@ -0,0 +1,107 @@
+/* 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/>.
+ *
+ */
+
+/* Based on Alan2 interpreter version 2.8(6) */
+
+#ifndef GLK_ALAN2
+#define GLK_ALAN2
+
+#include "common/scummsys.h"
+#include "common/serializer.h"
+#include "common/stack.h"
+#include "glk/glk_api.h"
+
+namespace Glk {
+namespace Alan2 {
+
+/**
+ * Alan2 game interpreter
+ */
+class Alan2 : public GlkAPI {
+private:
+	bool _restartFlag;
+public:
+	bool vm_exited_cleanly;
+	Common::String _advName;
+	int _saveSlot;
+	bool _pendingLook;
+private:
+	/**
+	 * Initialization
+	 */
+	bool initialize();
+
+	/**
+	 * Deinitialization
+	 */
+	void deinitialize();
+
+	/**
+	 * Synchronize data to or from a save file
+	 */
+	void synchronizeSave(Common::Serializer &s);
+public:
+	/**
+	 * Constructor
+	 */
+	Alan2(OSystem *syst, const GlkGameDescription &gameDesc);
+
+	/**
+	 * Run the game
+	 */
+	void runGame() override;
+
+	/**
+	 * Flag for the game to restart
+	 */
+	void setRestart(bool flag) { _restartFlag = flag; }
+
+	/**
+	 * Returns whether the game should restart
+	 */
+	bool shouldRestart() const { return _restartFlag; }
+
+	/**
+	 * Returns the running interpreter type
+	 */
+	InterpreterType getInterpreterType() const override {
+		return INTERPRETER_ALAN2;
+	}
+
+	/**
+	 * Load a savegame from the passed Quetzal file chunk stream
+	 */
+	Common::Error readSaveData(Common::SeekableReadStream *rs) override;
+
+	/**
+	 * Save the game. The passed write stream represents access to the UMem chunk
+	 * in the Quetzal save file that will be created
+	 */
+	Common::Error writeGameData(Common::WriteStream *ws) override;
+
+};
+
+extern Alan2 *g_vm;
+
+} // End of namespace Alan2
+} // End of namespace Glk
+
+#endif