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engines/agi/loader.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 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/>.
+ *
+ */
+
+#include "agi/agi.h"
+#include "agi/loader.h"
+
+#include "common/config-manager.h"
+#include "common/fs.h"
+
+namespace Agi {
+
+void AgiLoader::getPotentialDiskImages(
+	const char * const *imageExtensions,
+	size_t imageExtensionCount,
+	Common::Array<Common::Path> &imageFiles,
+	FileMap &fileMap) {
+
+	// get all files in game directory
+	Common::FSList allFiles;
+	Common::FSNode dir(ConfMan.getPath("path"));
+	if (!dir.getChildren(allFiles, Common::FSNode::kListFilesOnly)) {
+		warning("invalid game path: %s", dir.getPath().toString(Common::Path::kNativeSeparator).c_str());
+		return;
+	}
+
+	// build array of files with provided disk image extensions
+	for (const Common::FSNode &file : allFiles) {
+		for (size_t i = 0; i < imageExtensionCount; i++) {
+			if (file.getName().hasSuffixIgnoreCase(imageExtensions[i])) {
+				Common::Path path = file.getPath();
+				imageFiles.push_back(path);
+				fileMap[path] = file;
+				break;
+			}
+		}
+	}
+
+	// sort potential image files by name.
+	// this is an important step for consistent results,
+	// and because the first disk is likely to be first.
+	Common::sort(imageFiles.begin(), imageFiles.end());
+}
+
+} // End of namespace Agi