data/tool_steelshovel.png

/*
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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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 "exceptions.h"
#include "gamedef.h"
#include "inventory.h"
#include "log.h"
#include "util/serialize.h"
#include "constants.h" // MAP_BLOCKSIZE
#include <sstream>

/*
	NodeMetadata
*/

NodeMetadata::NodeMetadata(IGameDef *gamedef):
	m_stringvars(),
	m_inventory(new Inventory(gamedef->idef()))
{
}

NodeMetadata::~NodeMetadata()
{
	delete m_inventory;
}

void NodeMetadata::serialize(std::ostream &os) const
{
	int num_vars = m_stringvars.size();
	writeU32(os, num_vars);
	for(std::map<std::string, std::string>::const_iterator
			i = m_stringvars.begin(); i != m_stringvars.end(); i++){
		os<<serializeString(i->first);
		os<<serializeLongString(i->second);
	}

	m_inventory->serialize(os);
}

void NodeMetadata::deSerialize(std::istream &is)
{
	m_stringvars.clear();
	int num_vars = readU32(is);
	for(int i=0; i<num_vars; i++){
		std::string name = deSerializeString(is);
		std::string var = deSerializeLongString(is);
		m_stringvars[name] = var;
	}

	m_inventory->deSerialize(is);
}

void NodeMetadata::clear()
{
	m_stringvars.clear();
	m_inventory->clear();
}

/*
	NodeMetadataList
*/

void NodeMetadataList::serialize(std::ostream &os) const
{
	/*
		Version 0 is a placeholder for "nothing to see here; go away."
	*/

	if(m_data.size() == 0){
		writeU8(os, 0); // version
		return;
	}

	writeU8(os, 1); // version

	u16 count = m_data.size();
	writeU16(os, count);

	for(std::map<v3s16, NodeMetadata*>::const_iterator
			i = m_data.begin();
			i != m_data.end(); i++)
	{
		v3s16 p = i->first;
		NodeMetadata *data = i->second;
ofs	hex dump	ascii
0000	89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 10 00 00 00 10 08 06 00 00 00 1f f3 ff	.PNG........IHDR................
0020	61 00 00 00 04 73 42 49 54 08 08 08 08 7c 08 64 88 00 00 00 09 70 48 59 73 00 00 0e c4 00 00 0e	a....sBIT....\|.d.....pHYs.......
0040	c4 01 95 2b 0e 1b 00 00 00 7a 49 44 41 54 38 8d ed ce b1 09 c4 30 0c 85 e1 df d7 5d eb 11 42 6a	...+.....zIDAT8......0.....]..Bj
0060	75 2e 03 26 7b 64 0c 4f a1 a5 3c 83 07 f1 0a ba 2a 87 39 08 d1 5d aa 83 bc 4a 82 f7 09 c1 c5 04	u..&{d.O..<.....*.9..]...J......
0080	6f 51 55 6d 9f 4b 29 6f e7 3a a0 aa 96 52 42 44 68 ad 01 90 73 0e 00 8f 5f f0 18 d7 07 b5 56 1b	oQUm.K)o.:...RBDh...s..._.....V.
00a0	77 11 21 c6 e8 fb 60 5b 66 db d1 27 76 65 5b 66 5b a7 a7 01 f4 de ed ac 7f 88 bf ce 8d ff 06 03	w.!...`[f..'ve[f[...............
00c0	5c c2 c0 0b b5 05 39 f5 bf 9c 99 28 00 00 00 00 49 45 4e 44 ae 42 60 82	\.....9....(....IEND.B`.