GLK: ADVSYS: Engine skeleton

6 files changed, 347 insertions, 0 deletions

diff --git a/engines/glk/advsys/advsys.cpp b/engines/glk/advsys/advsys.cpp
new file mode 100644
index 0000000000..47c3da1d43
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+++ b/engines/glk/advsys/advsys.cpp
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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.
+ *
+ */
+
+#include "glk/advsys/advsys.h"
+
+namespace Glk {
+namespace AdvSys {
+
+void AdvSys::runGame() {
+	// TODO
+}
+
+Common::Error AdvSys::loadGameData(strid_t save) {
+	return Common::kNoError;
+}
+
+Common::Error AdvSys::saveGameData(strid_t save, const Common::String& desc) {
+	return Common::kNoError;
+}
+
+} // End of namespace AdvSys
+} // End of namespace Glk
diff --git a/engines/glk/advsys/advsys.h b/engines/glk/advsys/advsys.h
new file mode 100644
index 0000000000..ceb2df3260
--- /dev/null
+++ b/engines/glk/advsys/advsys.h
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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 GLK_ADVSYS_ADVSYS
+#define GLK_ADVSYS_ADVSYS
+
+#include "common/scummsys.h"
+#include "glk/glk_api.h"
+
+namespace Glk {
+namespace AdvSys {
+
+/**
+ * AdvSys game interpreter
+ */
+class AdvSys : public GlkAPI {
+private:
+
+public:
+	/**
+	 * Constructor
+	 */
+	AdvSys(OSystem *syst, const GlkGameDescription &gameDesc) : GlkAPI(syst, gameDesc) {}
+
+	/**
+	 * Run the game
+	 */
+	virtual void runGame() override;
+
+	/**
+	 * Returns the running interpreter type
+	 */
+	virtual InterpreterType getInterpreterType() const override { return INTERPRETER_ADVSYS; }
+
+	/**
+	 * Load a savegame from the passed stream
+	 */
+	virtual Common::Error loadGameData(strid_t save) override;
+
+	/**
+	 * Save the game to the passed stream
+	 */
+	virtual Common::Error saveGameData(strid_t save, const Common::String &desc) override;
+};
+
+} // End of namespace AdvSys
+} // End of namespace Glk
+
+#endif
diff --git a/engines/glk/advsys/definitions.h b/engines/glk/advsys/definitions.h
new file mode 100644
index 0000000000..6a02a66a6b
--- /dev/null
+++ b/engines/glk/advsys/definitions.h
@@ -0,0 +1,34 @@
+/* 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 GLK_ADVSYS_DEFINITIONS
+#define GLK_ADVSYS_DEFINITIONS
+
+namespace Glk {
+namespace AdvSys {
+
+
+
+} // End of namespace AdvSys
+} // End of namespace Glk
+
+#endif
diff --git a/engines/glk/advsys/detection.cpp b/engines/glk/advsys/detection.cpp
new file mode 100644
index 0000000000..4cedecfbc0
--- /dev/null
+++ b/engines/glk/advsys/detection.cpp
@@ -0,0 +1,95 @@
+/* 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 "glk/advsys/detection.h"
+#include "glk/advsys/detection_tables.h"
+#include "common/file.h"
+#include "common/md5.h"
+#include "engines/game.h"
+
+namespace Glk {
+namespace AdvSys {
+
+void AdvSysMetaEngine::getSupportedGames(PlainGameList &games) {
+	for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd)
+		games.push_back(*pd);
+}
+
+GameDescriptor AdvSysMetaEngine::findGame(const char *gameId) {
+	for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd) {
+		if (!strcmp(gameId, pd->gameId))
+			return *pd;
+	}
+
+	return GameDescriptor::empty();
+}
+
+bool AdvSysMetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
+	const char *const EXTENSIONS[] = { ".dat", nullptr };
+
+	// Loop through the files of the folder
+	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
+		// Check for a recognised filename
+		if (file->isDirectory())
+			continue;
+
+		Common::String filename = file->getName();
+		bool hasExt = false;
+		for (const char *const *ext = &EXTENSIONS[0]; *ext && !hasExt; ++ext)
+			hasExt = filename.hasSuffixIgnoreCase(*ext);
+		if (!hasExt)
+			continue;
+
+		Common::File gameFile;
+		if (!gameFile.open(*file))
+			continue;
+		Common::String md5 = Common::computeStreamMD5AsString(gameFile, 5000);
+		int32 filesize = gameFile.size();
+
+		// Scan through the AdvSys game list for a match
+		const AdvSysGame *p = ADVSYS_GAMES;
+		while (p->_md5 && p->_filesize != filesize && md5 != p->_md5)
+			++p;
+
+		if (p->_filesize) {
+			// Found a match
+			PlainGameDescriptor gameDesc = findGame(p->_gameId);
+			DetectedGame gd(p->_gameId, gameDesc.description, Common::EN_ANY, Common::kPlatformUnknown);
+			gd.addExtraEntry("filename", file->getName());
+
+			gameList.push_back(gd);
+		}
+	}
+
+	return !gameList.empty();
+}
+
+void AdvSysMetaEngine::detectClashes(Common::StringMap &map) {
+	for (const PlainGameDescriptor *pd = ADVSYS_GAME_LIST; pd->gameId; ++pd) {
+		if (map.contains(pd->gameId))
+			error("Duplicate game Id found - %s", pd->gameId);
+		map[pd->gameId] = "";
+	}
+}
+
+} // End of namespace AdvSys
+} // End of namespace Glk
diff --git a/engines/glk/advsys/detection.h b/engines/glk/advsys/detection.h
new file mode 100644
index 0000000000..328575714f
--- /dev/null
+++ b/engines/glk/advsys/detection.h
@@ -0,0 +1,60 @@
+/* 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 GLK_ADVSYS_DETECTION
+#define GLK_ADVSYS_DETECTION
+
+#include "common/fs.h"
+#include "common/hash-str.h"
+#include "engines/game.h"
+#include "glk/detection.h"
+
+namespace Glk {
+namespace AdvSys {
+
+class AdvSysMetaEngine {
+public:
+	/**
+	 * Get a list of supported games
+	 */
+	static void getSupportedGames(PlainGameList &games);
+
+	/**
+	 * Returns a game description for the given game Id, if it's supported
+	 */
+	static GameDescriptor findGame(const char *gameId);
+
+	/**
+	 * Detect supported games
+	 */
+	static bool detectGames(const Common::FSList &fslist, DetectedGames &gameList);
+
+	/**
+	 * Check for game Id clashes with other sub-engines
+	 */
+	static void detectClashes(Common::StringMap &map);
+};
+
+} // End of namespace AdvSys
+} // End of namespace Glk
+
+#endif
diff --git a/engines/glk/advsys/detection_tables.h b/engines/glk/advsys/detection_tables.h
new file mode 100644
index 0000000000..de36a34062
--- /dev/null
+++ b/engines/glk/advsys/detection_tables.h
@@ -0,0 +1,49 @@
+/* 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 "engines/game.h"
+#include "common/gui_options.h"
+#include "common/language.h"
+
+namespace Glk {
+namespace AdvSys {
+
+/**
+ * Game descriptor for Scott Adams games
+ */
+struct AdvSysGame {
+	const char *_md5;
+	const char *_gameId;
+	int32 _filesize;
+};
+
+const PlainGameDescriptor ADVSYS_GAME_LIST[] = {
+	{ nullptr, nullptr }
+};
+
+const AdvSysGame ADVSYS_GAMES[] = {
+
+	{ nullptr, nullptr, 0 }
+};
+
+} // End of namespace AdvSys
+} // End of namespace Glk