BBVS: Split detection features & adapt to new plugins.

2020-08-07 04:40:47 +05:30 · 2020-08-07 04:40:47 +05:30 · c4ba47a65d
commit c4ba47a65d
parent 9208a65a1f
6 changed files with 168 additions and 100 deletions
--- a/engines/bbvs/metaengine.cpp
+++ b/engines/bbvs/metaengine.cpp
@ -0,0 +1,127 @@
+/* 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 "bbvs/bbvs.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"
+
+class BbvsMetaEngineConnect : public AdvancedMetaEngineConnect {
+public:
+	const char *getName() const override {
+		return "bbvs";
+	}
+
+    bool hasFeature(MetaEngineFeature f) const override;
+	bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const override;
+
+	int getMaximumSaveSlot() const override;
+	SaveStateList listSaves(const char *target) const override;
+	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const override;
+	void removeSaveState(const char *target, int slot) const override;
+};
+
+bool BbvsMetaEngineConnect::hasFeature(MetaEngineFeature f) const {
+	return
+	    (f == kSupportsListSaves) ||
+	    (f == kSupportsDeleteSave) ||
+	    (f == kSupportsLoadingDuringStartup) ||
+	    (f == kSavesSupportMetaInfo) ||
+	    (f == kSavesSupportThumbnail) ||
+	    (f == kSavesSupportCreationDate) ||
+		(f == kSimpleSavesNames);
+}
+
+void BbvsMetaEngineConnect::removeSaveState(const char *target, int slot) const {
+	Common::String fileName = Common::String::format("%s.%03d", target, slot);
+	g_system->getSavefileManager()->removeSavefile(fileName);
+}
+
+int BbvsMetaEngineConnect::getMaximumSaveSlot() const {
+	return 999;
+}
+
+SaveStateList BbvsMetaEngineConnect::listSaves(const char *target) const {
+	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
+	Bbvs::BbvsEngine::SaveHeader header;
+	Common::String pattern = target;
+	pattern += ".###";
+	Common::StringArray filenames;
+	filenames = saveFileMan->listSavefiles(pattern.c_str());
+	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 (Bbvs::BbvsEngine::readSaveHeader(in, header) == Bbvs::BbvsEngine::kRSHENoError) {
+					saveList.push_back(SaveStateDescriptor(slotNum, header.description));
+				}
+				delete in;
+			}
+		}
+	}
+	// Sort saves based on slot number.
+	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
+	return saveList;
+}
+
+SaveStateDescriptor BbvsMetaEngineConnect::querySaveMetaInfos(const char *target, int slot) const {
+	Common::String filename = Bbvs::BbvsEngine::getSavegameFilename(target, slot);
+	Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(filename.c_str());
+	if (in) {
+		Bbvs::BbvsEngine::SaveHeader header;
+		Bbvs::BbvsEngine::kReadSaveHeaderError error;
+		error = Bbvs::BbvsEngine::readSaveHeader(in, header, false);
+		delete in;
+		if (error == Bbvs::BbvsEngine::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();
+}
+
+bool BbvsMetaEngineConnect::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
+	if (desc) {
+		*engine = new Bbvs::BbvsEngine(syst, desc);
+	}
+	return desc != 0;
+}
+
+#if PLUGIN_ENABLED_DYNAMIC(BBVS)
+	REGISTER_PLUGIN_DYNAMIC(BBVS, PLUGIN_TYPE_ENGINE, BbvsMetaEngineConnect);
+#else
+	REGISTER_PLUGIN_STATIC(BBVS, PLUGIN_TYPE_ENGINE, BbvsMetaEngineConnect);
+#endif