minetest/src/mapsector.h

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/*
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Minetest
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Copyright (C) 2013 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.
*/
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#ifndef MAPSECTOR_HEADER
#define MAPSECTOR_HEADER
#include "irrlichttypes.h"
#include "irr_v2d.h"
#include "mapblock.h"
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#include <ostream>
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#include <map>
#include <vector>
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class Map;
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class IGameDef;
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/*
This is an Y-wise stack of MapBlocks.
*/
#define MAPSECTOR_SERVER 0
#define MAPSECTOR_CLIENT 1
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class MapSector
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{
public:
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MapSector(Map *parent, v2s16 pos, IGameDef *gamedef);
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virtual ~MapSector();
virtual u32 getId() const = 0;
void deleteBlocks();
v2s16 getPos()
{
return m_pos;
}
MapBlock * getBlockNoCreateNoEx(s16 y);
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MapBlock * createBlankBlockNoInsert(s16 y);
MapBlock * createBlankBlock(s16 y);
void insertBlock(MapBlock *block);
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void deleteBlock(MapBlock *block);
void getBlocks(MapBlockVect &dest);
bool empty();
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// Always false at the moment, because sector contains no metadata.
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bool differs_from_disk;
protected:
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// The pile of MapBlocks
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std::map<s16, MapBlock*> m_blocks;
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Map *m_parent;
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// Position on parent (in MapBlock widths)
v2s16 m_pos;
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IGameDef *m_gamedef;
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// Last-used block is cached here for quicker access.
// Be sure to set this to NULL when the cached block is deleted
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MapBlock *m_block_cache;
s16 m_block_cache_y;
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/*
Private methods
*/
MapBlock *getBlockBuffered(s16 y);
};
class ServerMapSector : public MapSector
{
public:
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ServerMapSector(Map *parent, v2s16 pos, IGameDef *gamedef);
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~ServerMapSector();
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u32 getId() const
{
return MAPSECTOR_SERVER;
}
/*
These functions handle metadata.
They do not handle blocks.
*/
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void serialize(std::ostream &os, u8 version);
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static ServerMapSector* deSerialize(
std::istream &is,
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Map *parent,
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v2s16 p2d,
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std::map<v2s16, MapSector*> & sectors,
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IGameDef *gamedef
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);
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private:
};
#ifndef SERVER
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class ClientMapSector : public MapSector
{
public:
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ClientMapSector(Map *parent, v2s16 pos, IGameDef *gamedef);
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~ClientMapSector();
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u32 getId() const
{
return MAPSECTOR_CLIENT;
}
private:
};
#endif
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#endif