Node definition names

1 files changed, 50 insertions, 0 deletions

diff --git a/src/nameidmapping.cpp b/src/nameidmapping.cpp
new file mode 100644
index 000000000..0fb663278
--- /dev/null
+++ b/src/nameidmapping.cpp
@@ -0,0 +1,50 @@
+/*
+Minetest-c55
+Copyright (C) 2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+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 "nameidmapping.h"
+#include "utility.h"
+
+void NameIdMapping::serialize(std::ostream &os) const
+{
+	writeU8(os, 0); // version
+	writeU16(os, m_id_to_name.size());
+	for(std::map<u16, std::string>::const_iterator
+			i = m_id_to_name.begin();
+			i != m_id_to_name.end(); i++){
+		writeU16(os, i->first);
+		os<<serializeString(i->second);
+	}
+}
+
+void NameIdMapping::deSerialize(std::istream &is)
+{
+	int version = readU8(is);
+	if(version != 0)
+		throw SerializationError("unsupported NameIdMapping version");
+	u32 count = readU16(is);
+	m_id_to_name.clear();
+	m_name_to_id.clear();
+	for(u32 i=0; i<count; i++){
+		u16 id = readU16(is);
+		std::string name = deSerializeString(is);
+		m_id_to_name[id] = name;
+		m_name_to_id[name] = id;
+	}
+}
+