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- /*
- Minetest
- 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.
- */
- #include "mapsector.h"
- #include "exceptions.h"
- #include "mapblock.h"
- #include "serialization.h"
- MapSector::MapSector(Map *parent, v2s16 pos, IGameDef *gamedef):
- differs_from_disk(false),
- m_parent(parent),
- m_pos(pos),
- m_gamedef(gamedef),
- m_block_cache(NULL)
- {
- }
- MapSector::~MapSector()
- {
- deleteBlocks();
- }
- void MapSector::deleteBlocks()
- {
- // Clear cache
- m_block_cache = NULL;
- // Delete all
- for(std::map<s16, MapBlock*>::iterator i = m_blocks.begin();
- i != m_blocks.end(); ++i)
- {
- delete i->second;
- }
- // Clear container
- m_blocks.clear();
- }
- MapBlock * MapSector::getBlockBuffered(s16 y)
- {
- MapBlock *block;
- if(m_block_cache != NULL && y == m_block_cache_y){
- return m_block_cache;
- }
-
- // If block doesn't exist, return NULL
- std::map<s16, MapBlock*>::iterator n = m_blocks.find(y);
- if(n == m_blocks.end())
- {
- block = NULL;
- }
- // If block exists, return it
- else{
- block = n->second;
- }
-
- // Cache the last result
- m_block_cache_y = y;
- m_block_cache = block;
-
- return block;
- }
- MapBlock * MapSector::getBlockNoCreateNoEx(s16 y)
- {
- return getBlockBuffered(y);
- }
- MapBlock * MapSector::createBlankBlockNoInsert(s16 y)
- {
- assert(getBlockBuffered(y) == NULL);
- v3s16 blockpos_map(m_pos.X, y, m_pos.Y);
-
- MapBlock *block = new MapBlock(m_parent, blockpos_map, m_gamedef);
-
- return block;
- }
- MapBlock * MapSector::createBlankBlock(s16 y)
- {
- MapBlock *block = createBlankBlockNoInsert(y);
-
- m_blocks[y] = block;
- return block;
- }
- void MapSector::insertBlock(MapBlock *block)
- {
- s16 block_y = block->getPos().Y;
- MapBlock *block2 = getBlockBuffered(block_y);
- if(block2 != NULL){
- throw AlreadyExistsException("Block already exists");
- }
- v2s16 p2d(block->getPos().X, block->getPos().Z);
- assert(p2d == m_pos);
-
- // Insert into container
- m_blocks[block_y] = block;
- }
- void MapSector::deleteBlock(MapBlock *block)
- {
- s16 block_y = block->getPos().Y;
- // Clear from cache
- m_block_cache = NULL;
-
- // Remove from container
- m_blocks.erase(block_y);
- // Delete
- delete block;
- }
- void MapSector::getBlocks(std::list<MapBlock*> &dest)
- {
- for(std::map<s16, MapBlock*>::iterator bi = m_blocks.begin();
- bi != m_blocks.end(); ++bi)
- {
- dest.push_back(bi->second);
- }
- }
- /*
- ServerMapSector
- */
- ServerMapSector::ServerMapSector(Map *parent, v2s16 pos, IGameDef *gamedef):
- MapSector(parent, pos, gamedef)
- {
- }
- ServerMapSector::~ServerMapSector()
- {
- }
- void ServerMapSector::serialize(std::ostream &os, u8 version)
- {
- if(!ser_ver_supported(version))
- throw VersionMismatchException("ERROR: MapSector format not supported");
-
- /*
- [0] u8 serialization version
- + heightmap data
- */
-
- // Server has both of these, no need to support not having them.
- //assert(m_objects != NULL);
- // Write version
- os.write((char*)&version, 1);
-
- /*
- Add stuff here, if needed
- */
- }
- ServerMapSector* ServerMapSector::deSerialize(
- std::istream &is,
- Map *parent,
- v2s16 p2d,
- std::map<v2s16, MapSector*> & sectors,
- IGameDef *gamedef
- )
- {
- /*
- [0] u8 serialization version
- + heightmap data
- */
- /*
- Read stuff
- */
-
- // Read version
- u8 version = SER_FMT_VER_INVALID;
- is.read((char*)&version, 1);
-
- if(!ser_ver_supported(version))
- throw VersionMismatchException("ERROR: MapSector format not supported");
-
- /*
- Add necessary reading stuff here
- */
-
- /*
- Get or create sector
- */
- ServerMapSector *sector = NULL;
- std::map<v2s16, MapSector*>::iterator n = sectors.find(p2d);
- if(n != sectors.end())
- {
- dstream<<"WARNING: deSerializing existent sectors not supported "
- "at the moment, because code hasn't been tested."
- <<std::endl;
- MapSector *sector = n->second;
- assert(sector->getId() == MAPSECTOR_SERVER);
- return (ServerMapSector*)sector;
- }
- else
- {
- sector = new ServerMapSector(parent, p2d, gamedef);
- sectors[p2d] = sector;
- }
- /*
- Set stuff in sector
- */
- // Nothing here
- return sector;
- }
- #ifndef SERVER
- /*
- ClientMapSector
- */
- ClientMapSector::ClientMapSector(Map *parent, v2s16 pos, IGameDef *gamedef):
- MapSector(parent, pos, gamedef)
- {
- }
- ClientMapSector::~ClientMapSector()
- {
- }
- #endif // !SERVER
- //END
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