1 files changed, 96 insertions, 0 deletions
diff --git a/engines/engine.h b/engines/engine.h
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+++ b/engines/engine.h
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+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2002-2006 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.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef BASE_ENGINE_H
+#define BASE_ENGINE_H
+
+#include "common/stdafx.h"
+#include "common/scummsys.h"
+#include "common/str.h"
+
+class OSystem;
+namespace Audio {
+	class Mixer;
+}
+namespace Common {
+	class SaveFileManager;
+	class TimerManager;
+}
+namespace GUI {
+	class Debugger;
+}
+
+class Engine {
+public:
+	OSystem *_system;
+	Audio::Mixer *_mixer;
+	Common::TimerManager * _timer;
+
+protected:
+	const Common::String _targetName; // target name for saves
+	const Common::String _gameDataPath;
+	Common::SaveFileManager *_saveFileMan;
+
+private:
+	int _autosavePeriod;
+
+public:
+	Engine(OSystem *syst);
+	virtual ~Engine();
+
+	/**
+	 * Init the engine.
+	 * @return 0 for success, else an error code.
+	 */
+	virtual int init() = 0;
+
+	/**
+	 * Start the main engine loop.
+	 * The return value is not yet used, but could indicate whether the user
+	 * wants to return to the launch or to fully quit ScummVM.
+	 * @return a result code
+	 */
+	virtual int go() = 0;
+
+	/** Specific for each engine: prepare error string. */
+	virtual void errorString(const char *buf_input, char *buf_output);
+
+	void initCommonGFX(bool defaultTo1XScaler);
+
+	/** On some systems, check if the game appears to be run from CD. */
+	void checkCD();
+
+	/* Indicate if an autosave should be performed. */
+	bool shouldPerformAutoSave(int lastSaveTime);
+
+	/** Initialized graphics and shows error message. */
+	void GUIErrorMessage(const Common::String msg);
+
+	/**
+	 * Return the engine's debugger instance, if any. Used by error() to
+	 * invoke the debugger when a severe error is reported.
+	 */
+	virtual GUI::Debugger *getDebugger() { return 0; }
+};
+
+extern Engine *g_engine;
+
+#endif