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-rw-r--r--src/nodemetadata.cpp204
-rw-r--r--src/nodemetadata.h101
2 files changed, 305 insertions, 0 deletions
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);
+}
+
diff --git a/src/nodemetadata.h b/src/nodemetadata.h
new file mode 100644
index 000000000..aa2e0196c
--- /dev/null
+++ b/src/nodemetadata.h
@@ -0,0 +1,101 @@
+/*
+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.
+*/
+
+#ifndef NODEMETADATA_HEADER
+#define NODEMETADATA_HEADER
+
+#include "common_irrlicht.h"
+#include <string>
+#include <iostream>
+
+/*
+ Used for storing:
+
+ Oven:
+ - Item that is being burned
+ - Burning time
+ - Item stack that is being heated
+ - Result item stack
+
+ Sign:
+ - Text
+*/
+
+class NodeMetadata
+{
+public:
+ typedef NodeMetadata* (*Factory)(std::istream&);
+
+ NodeMetadata();
+ virtual ~NodeMetadata();
+
+ static NodeMetadata* deSerialize(std::istream &is);
+ void serialize(std::ostream &os);
+
+ // This usually is the CONTENT_ value
+ virtual u16 typeId() const = 0;
+ virtual NodeMetadata* clone() = 0;
+ virtual void serializeBody(std::ostream &os) = 0;
+ virtual std::string infoText() { return "<todo: remove this text>"; }
+
+protected:
+ static void registerType(u16 id, Factory f);
+private:
+ static core::map<u16, Factory> m_types;
+};
+
+class SignNodeMetadata : public NodeMetadata
+{
+public:
+ SignNodeMetadata(std::string text);
+ //~SignNodeMetadata();
+
+ virtual u16 typeId() const;
+ static NodeMetadata* create(std::istream &is);
+ virtual NodeMetadata* clone();
+ virtual void serializeBody(std::ostream &os);
+ virtual std::string infoText();
+
+ std::string getText(){ return m_text; }
+ void setText(std::string t){ m_text = t; }
+
+private:
+ std::string m_text;
+};
+
+class NodeMetadataList
+{
+public:
+ ~NodeMetadataList();
+
+ void serialize(std::ostream &os);
+ void deSerialize(std::istream &is);
+
+ // Get pointer to data
+ NodeMetadata* get(v3s16 p);
+ // Deletes data
+ void remove(v3s16 p);
+ // Deletes old data and sets a new one
+ void set(v3s16 p, NodeMetadata *d);
+private:
+ core::map<v3s16, NodeMetadata*> m_data;
+};
+
+#endif
+