minetest/src/serialization.h

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/*
(c) 2010 Perttu Ahola <celeron55@gmail.com>
*/
#ifndef SERIALIZATION_HEADER
#define SERIALIZATION_HEADER
#include "common_irrlicht.h"
#include "exceptions.h"
#include <iostream>
#include "utility.h"
/*
NOTE: The goal is to increment this so that saved maps will be
loadable by any version. Other compatibility is not
maintained.
Serialization format versions:
== Unsupported ==
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0: original networked test with 1-byte nodes
1: update with 2-byte nodes
== Supported ==
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2: lighting is transmitted in param
3: optional fetching of far blocks
4: block compression
5: sector objects NOTE: block compression was left accidentally out
6: failed attempt at switching block compression on again
7: block compression switched on again
8: (dev) server-initiated block transfers and all kinds of stuff
9: (dev) block objects
*/
// This represents an uninitialized or invalid format
#define SER_FMT_VER_INVALID 255
// Highest supported serialization version
#define SER_FMT_VER_HIGHEST 9
// Lowest supported serialization version
#define SER_FMT_VER_LOWEST 2
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#define ser_ver_supported(v) (v >= SER_FMT_VER_LOWEST && v <= SER_FMT_VER_HIGHEST)
void compress(SharedBuffer<u8> data, std::ostream &os, u8 version);
void decompress(std::istream &is, std::ostream &os, u8 version);
/*class Serializable
{
public:
void serialize(std::ostream &os, u8 version) = 0;
void deSerialize(std::istream &istr);
};*/
#endif