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engines/ags/plugins/serializer.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 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/>.
+ *
+ */
+
+#ifndef AGS_PLUGINS_SERIALIZER_H
+#define AGS_PLUGINS_SERIALIZER_H
+
+#include "ags/shared/util/iags_stream.h"
+#include "ags/plugins/ags_plugin.h"
+#include "common/serializer.h"
+
+namespace AGS3 {
+namespace Plugins {
+
+class Serializer {
+private:
+	IAGSEngine *_engine;
+	long _file;
+	bool _isLoading;
+	public:
+	Serializer(IAGSEngine *engine, long file, bool isLoading) :
+		_engine(engine), _file(file), _isLoading(isLoading) {}
+
+	bool isLoading() const {
+		return _isLoading;
+	}
+	bool isSaving() const {
+		return !_isLoading;
+	}
+
+	template<typename T>
+	void syncAsInt(T &value) {
+		byte buf[4];
+		if (_isLoading) {
+			_engine->FRead(buf, 4, _file);
+			value = READ_LE_INT32(buf);
+		} else {
+			WRITE_LE_UINT32(buf, value);
+			_engine->FWrite(buf, 4, _file);
+		}
+	}
+
+	void syncAsBool(bool &value) {
+		if (_isLoading)
+			_engine->FRead(&value, 1, _file);
+		else
+			_engine->FWrite(&value, 1, _file);
+	}
+
+	void syncAsInt8(int8 &value) {
+		if (_isLoading)
+			_engine->FRead(&value, 1, _file);
+		else
+			_engine->FWrite(&value, 1, _file);
+	}
+
+	void syncAsByte(byte &value) {
+		if (_isLoading)
+			_engine->FRead(&value, 1, _file);
+		else
+			_engine->FWrite(&value, 1, _file);
+	}
+
+	void syncAsFloat(float &value) {
+		if (_isLoading)
+			_engine->FRead(&value, sizeof(float), _file);
+		else
+			_engine->FWrite(&value, sizeof(float), _file);
+	}
+
+	void syncAsDouble(double &value) {
+		if (_isLoading)
+			_engine->FRead(&value, sizeof(double), _file);
+		else
+			_engine->FWrite(&value, sizeof(double), _file);
+	}
+
+	void unreadInt() {
+		_engine->FSeek(-4, AGS::Shared::kSeekCurrent, _file);
+	}
+};
+
+} // namespace Plugins
+} // namespace AGS3
+
+#endif