From 3a58f8179f09ea90cefb4ef7ff18ed1d8e27d0f2 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Mon, 4 Apr 2011 05:13:08 +0300
Subject: forgot some files

---
 src/nodemetadata.cpp | 204 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 204 insertions(+)
 create mode 100644 src/nodemetadata.cpp

(limited to 'src/nodemetadata.cpp')

diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
new file mode 100644
index 000000000..775b59b24
--- /dev/null
+++ b/src/nodemetadata.cpp
@@ -0,0 +1,204 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 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 "nodemetadata.h"
+#include "utility.h"
+#include "mapnode.h"
+#include "exceptions.h"
+
+/*
+	NodeMetadata
+*/
+
+core::map<u16, NodeMetadata::Factory> NodeMetadata::m_types;
+
+NodeMetadata::NodeMetadata()
+{
+}
+
+NodeMetadata::~NodeMetadata()
+{
+}
+
+NodeMetadata* NodeMetadata::deSerialize(std::istream &is)
+{
+	u8 buf[2];
+	is.read((char*)buf, 2);
+	s16 id = readS16(buf);
+
+	core::map<u16, Factory>::Node *n;
+	n = m_types.find(id);
+	if(n == NULL)
+	{
+		dstream<<"NodeMetadata(): No factory for typeId="<<id<<std::endl;
+		throw SerializationError("Unknown metadata id");
+	}
+	
+	Factory f = n->getValue();
+	NodeMetadata *meta = (*f)(is);
+	return meta;
+}
+
+void NodeMetadata::serialize(std::ostream &os)
+{
+	u8 buf[2];
+	writeU16(buf, typeId());
+	os.write((char*)buf, 2);
+
+	serializeBody(os);
+}
+
+void NodeMetadata::registerType(u16 id, Factory f)
+{
+	core::map<u16, Factory>::Node *n;
+	n = m_types.find(id);
+	if(n)
+		return;
+	m_types.insert(id, f);
+}
+
+/*
+	SignNodeMetadata
+*/
+
+SignNodeMetadata::SignNodeMetadata(std::string text):
+	m_text(text)
+{
+	NodeMetadata::registerType(typeId(), create);
+}
+u16 SignNodeMetadata::typeId() const
+{
+	return CONTENT_SIGN_WALL;
+}
+NodeMetadata* SignNodeMetadata::create(std::istream &is)
+{
+	std::string text = deSerializeString(is);
+	return new SignNodeMetadata(text);
+}
+NodeMetadata* SignNodeMetadata::clone()
+{
+	return new SignNodeMetadata(m_text);
+}
+void SignNodeMetadata::serializeBody(std::ostream &os)
+{
+	os<<serializeString(m_text);
+}
+std::string SignNodeMetadata::infoText()
+{
+	return std::string("\"")+m_text+"\"";
+}
+
+/*
+	NodeMetadatalist
+*/
+
+void NodeMetadataList::serialize(std::ostream &os)
+{
+	u8 buf[6];
+	
+	u16 count = m_data.size();
+	writeU16(buf, count);
+	os.write((char*)buf, 2);
+
+	for(core::map<v3s16, NodeMetadata*>::Iterator
+			i = m_data.getIterator();
+			i.atEnd()==false; i++)
+	{
+		v3s16 p = i.getNode()->getKey();
+		NodeMetadata *data = i.getNode()->getValue();
+		
+		u16 p16 = p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X;
+		writeU16(buf, p16);
+		os.write((char*)buf, 2);
+
+		data->serialize(os);
+	}
+	
+}
+void NodeMetadataList::deSerialize(std::istream &is)
+{
+	m_data.clear();
+
+	u8 buf[6];
+	
+	is.read((char*)buf, 2);
+	u16 count = readU16(buf);
+	
+	for(u16 i=0; i<count; i++)
+	{
+		is.read((char*)buf, 2);
+		u16 p16 = readU16(buf);
+
+		v3s16 p(0,0,0);
+		p.Z += p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
+		p16 -= p.Z * MAP_BLOCKSIZE * MAP_BLOCKSIZE;
+		p.Y += p16 / MAP_BLOCKSIZE;
+		p16 -= p.Y * MAP_BLOCKSIZE;
+		p.X += p16;
+		
+		if(m_data.find(p))
+		{
+			dstream<<"ERROR: NodeMetadataList::deSerialize(): "
+					<<"already set data at position"
+					<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
+					<<std::endl;
+			throw SerializationError("NodeMetadataList::deSerialize()");
+		}
+
+		NodeMetadata *data = NodeMetadata::deSerialize(is);
+		
+		m_data.insert(p, data);
+	}
+}
+	
+NodeMetadataList::~NodeMetadataList()
+{
+	for(core::map<v3s16, NodeMetadata*>::Iterator
+			i = m_data.getIterator();
+			i.atEnd()==false; i++)
+	{
+		delete i.getNode()->getValue();
+	}
+}
+
+NodeMetadata* NodeMetadataList::get(v3s16 p)
+{
+	core::map<v3s16, NodeMetadata*>::Node *n;
+	n = m_data.find(p);
+	if(n == NULL)
+		return NULL;
+	return n->getValue();
+}
+
+void NodeMetadataList::remove(v3s16 p)
+{
+	NodeMetadata *olddata = get(p);
+	if(olddata)
+	{
+		delete olddata;
+		m_data.remove(p);
+	}
+}
+
+void NodeMetadataList::set(v3s16 p, NodeMetadata *d)
+{
+	remove(p);
+	m_data.insert(p, d);
+}
+
-- 
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