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Perttu Ahola 2011-04-04 05:13:08 +03:00
parent fa736e138c
commit 3a58f8179f
2 changed files with 305 additions and 0 deletions
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204
src/nodemetadata.cpp Normal file
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/*
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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src/nodemetadata.h Normal file
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/*
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