ILLUSIONS: Skeleton engine with detection for BBDOU

1 files changed, 172 insertions, 0 deletions

diff --git a/engines/illusions/detection.cpp b/engines/illusions/detection.cpp
new file mode 100644
index 0000000000..88d63b4714
--- /dev/null
+++ b/engines/illusions/detection.cpp
@@ -0,0 +1,172 @@
+/* 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 "illusions/illusions.h"
+
+#include "common/config-manager.h"
+#include "engines/advancedDetector.h"
+#include "common/savefile.h"
+#include "common/system.h"
+#include "base/plugins.h"
+#include "graphics/thumbnail.h"
+
+static const PlainGameDescriptor illusionsGames[] = {
+	{ "illusions", "Illusions engine game" },
+	{ "bbdou", "Beavis and Butthead Do U" },
+	{ 0, 0 }
+};
+
+namespace Illusions {
+
+static const ADGameDescription gameDescriptions[] = {
+	{
+		"bbdou",
+		0,
+		AD_ENTRY1s("000D0001.scr", "d0c846d5dccc5607a482c7dcbdf06973", 601980),
+		Common::EN_ANY,
+		Common::kPlatformWindows,
+		ADGF_NO_FLAGS,
+		GUIO0()
+	},
+
+	AD_TABLE_END_MARKER
+};
+
+} // End of namespace Illusions
+
+static const char * const directoryGlobs[] = {
+	"resource",
+	0
+};
+
+class IllusionsMetaEngine : public AdvancedMetaEngine {
+public:
+	IllusionsMetaEngine() : AdvancedMetaEngine(Illusions::gameDescriptions, sizeof(ADGameDescription), illusionsGames) {
+		_singleid = "illusions";
+		_maxScanDepth = 2;
+		_directoryGlobs = directoryGlobs;
+	}
+
+	virtual const char *getName() const {
+		return "Illusions Engine";
+	}
+
+	virtual const char *getOriginalCopyright() const {
+		return "(C) The Illusions Gaming Company";
+	}
+
+	virtual bool hasFeature(MetaEngineFeature f) const;
+	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
+#if 0
+	virtual int getMaximumSaveSlot() const;
+	virtual SaveStateList listSaves(const char *target) const;
+	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
+	virtual void removeSaveState(const char *target, int slot) const;
+#endif
+};
+
+bool IllusionsMetaEngine::hasFeature(MetaEngineFeature f) const {
+	return
+		false;
+		/*
+	    (f == kSupportsListSaves) ||
+	    (f == kSupportsDeleteSave) ||
+	    (f == kSupportsLoadingDuringStartup) ||
+	    (f == kSavesSupportMetaInfo) ||
+	    (f == kSavesSupportThumbnail) ||
+	    (f == kSavesSupportCreationDate);
+	    */
+}
+
+#if 0
+
+void IllusionsMetaEngine::removeSaveState(const char *target, int slot) const {
+	Common::String fileName = Common::String::format("%s.%03d", target, slot);
+	g_system->getSavefileManager()->removeSavefile(fileName);
+}
+
+int IllusionsMetaEngine::getMaximumSaveSlot() const {
+	return 999;
+}
+
+SaveStateList IllusionsMetaEngine::listSaves(const char *target) const {
+	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
+	Illusions::IllusionsEngine::SaveHeader header;
+	Common::String pattern = target;
+	pattern += ".???";
+	Common::StringArray filenames;
+	filenames = saveFileMan->listSavefiles(pattern.c_str());
+	Common::sort(filenames.begin(), filenames.end());	// Sort (hopefully ensuring we are sorted numerically..)
+	SaveStateList saveList;
+	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
+		// Obtain the last 3 digits of the filename, since they correspond to the save slot
+		int slotNum = atoi(file->c_str() + file->size() - 3);
+		if (slotNum >= 0 && slotNum <= 999) {
+			Common::InSaveFile *in = saveFileMan->openForLoading(file->c_str());
+			if (in) {
+				if (Illusions::IllusionsEngine::readSaveHeader(in, false, header) == Illusions::IllusionsEngine::kRSHENoError) {
+					saveList.push_back(SaveStateDescriptor(slotNum, header.description));
+				}
+				delete in;
+			}
+		}
+	}
+	return saveList;
+}
+
+SaveStateDescriptor IllusionsMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
+	Common::String filename = Illusions::IllusionsEngine::getSavegameFilename(target, slot);
+	Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(filename.c_str());
+	if (in) {
+		Illusions::IllusionsEngine::SaveHeader header;
+		Illusions::IllusionsEngine::kReadSaveHeaderError error;
+		error = Illusions::IllusionsEngine::readSaveHeader(in, true, header);
+		delete in;
+		if (error == Illusions::IllusionsEngine::kRSHENoError) {		
+			SaveStateDescriptor desc(slot, header.description);
+			// Slot 0 is used for the "Continue" save
+			desc.setDeletableFlag(slot != 0);
+			desc.setWriteProtectedFlag(slot == 0);
+			desc.setThumbnail(header.thumbnail);
+			desc.setSaveDate(header.saveDate & 0xFFFF, (header.saveDate >> 16) & 0xFF, (header.saveDate >> 24) & 0xFF);
+			desc.setSaveTime((header.saveTime >> 16) & 0xFF, (header.saveTime >> 8) & 0xFF);
+			desc.setPlayTime(header.playTime * 1000);
+			return desc;
+		}
+	}
+	return SaveStateDescriptor();
+}
+
+#endif
+
+bool IllusionsMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
+	if (desc) {
+		*engine = new Illusions::IllusionsEngine(syst, desc);
+	}
+	return desc != 0;
+}
+
+#if PLUGIN_ENABLED_DYNAMIC(ILLUSIONS)
+	REGISTER_PLUGIN_DYNAMIC(ILLUSIONS, PLUGIN_TYPE_ENGINE, IllusionsMetaEngine);
+#else
+	REGISTER_PLUGIN_STATIC(ILLUSIONS, PLUGIN_TYPE_ENGINE, IllusionsMetaEngine);
+#endif