X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapsector.cpp;h=3eefa5410796ac5da4a805e98525116735c99b32;hb=1116918dbbbf7f36920c6d43a4fc504a09f0df49;hp=8a3728c8f2a0ddedd29933efd35b375e0b41befd;hpb=ab7477c4c3e2a3647dc4fb65c71567946d33b0e3;p=dragonfireclient.git

diff --git a/src/mapsector.cpp b/src/mapsector.cpp
index 8a3728c8f..3eefa5410 100644
--- a/src/mapsector.cpp
+++ b/src/mapsector.cpp
@@ -1,36 +1,32 @@
 /*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+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 "jmutexautolock.h"
-#include "client.h"
 #include "exceptions.h"
+#include "mapblock.h"
+#include "serialization.h"
 
-MapSector::MapSector(NodeContainer *parent, v2s16 pos):
-		differs_from_disk(true),
-		usage_timer(0.0),
+MapSector::MapSector(Map *parent, v2s16 pos, IGameDef *gamedef):
 		m_parent(parent),
 		m_pos(pos),
-		m_block_cache(NULL)
+		m_gamedef(gamedef)
 {
-	m_mutex.Init();
-	assert(m_mutex.IsInitialized());
 }
 
 MapSector::~MapSector()
@@ -40,16 +36,12 @@ MapSector::~MapSector()
 
 void MapSector::deleteBlocks()
 {
-	JMutexAutoLock lock(m_mutex);
-
 	// Clear cache
-	m_block_cache = NULL;
+	m_block_cache = nullptr;
 
 	// Delete all
-	core::map<s16, MapBlock*>::Iterator i = m_blocks.getIterator();
-	for(; i.atEnd() == false; i++)
-	{
-		delete i.getNode()->getValue();
+	for (auto &block : m_blocks) {
+		delete block.second;
 	}
 
 	// Clear container
@@ -60,60 +52,42 @@ MapBlock * MapSector::getBlockBuffered(s16 y)
 {
 	MapBlock *block;
 
-	if(m_block_cache != NULL && y == m_block_cache_y){
+	if (m_block_cache && y == m_block_cache_y) {
 		return m_block_cache;
 	}
-	
+
 	// If block doesn't exist, return NULL
-	core::map<s16, MapBlock*>::Node *n = m_blocks.find(y);
-	if(n == NULL)
-	{
-		block = NULL;
-	}
-	// If block exists, return it
-	else{
-		block = n->getValue();
-	}
-	
+	std::unordered_map<s16, MapBlock*>::const_iterator n = m_blocks.find(y);
+	block = (n != m_blocks.end() ? n->second : nullptr);
+
 	// Cache the last result
 	m_block_cache_y = y;
 	m_block_cache = block;
-	
+
 	return block;
 }
 
-MapBlock * MapSector::getBlockNoCreate(s16 y)
+MapBlock * MapSector::getBlockNoCreateNoEx(s16 y)
 {
-	JMutexAutoLock lock(m_mutex);
-	
-	MapBlock *block = getBlockBuffered(y);
-
-	if(block == NULL)
-		throw InvalidPositionException();
-	
-	return block;
+	return getBlockBuffered(y);
 }
 
 MapBlock * MapSector::createBlankBlockNoInsert(s16 y)
 {
-	// There should not be a block at this position
-	if(getBlockBuffered(y) != NULL)
-		throw AlreadyExistsException("Block already exists");
+	assert(getBlockBuffered(y) == NULL);	// Pre-condition
 
 	v3s16 blockpos_map(m_pos.X, y, m_pos.Y);
-	
-	MapBlock *block = new MapBlock(m_parent, blockpos_map);
-	
+
+	MapBlock *block = new MapBlock(m_parent, blockpos_map, m_gamedef);
+
 	return block;
 }
 
 MapBlock * MapSector::createBlankBlock(s16 y)
 {
-	JMutexAutoLock lock(m_mutex);
-	
 	MapBlock *block = createBlankBlockNoInsert(y);
-	
-	m_blocks.insert(y, block);
+
+	m_blocks[y] = block;
 
 	return block;
 }
@@ -122,552 +96,35 @@ void MapSector::insertBlock(MapBlock *block)
 {
 	s16 block_y = block->getPos().Y;
 
-	{
-		JMutexAutoLock lock(m_mutex);
+	MapBlock *block2 = getBlockBuffered(block_y);
+	if (block2) {
+		throw AlreadyExistsException("Block already exists");
+	}
 
-		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);
 
-		v2s16 p2d(block->getPos().X, block->getPos().Z);
-		assert(p2d == m_pos);
-		
-		// Insert into container
-		m_blocks.insert(block_y, block);
-	}
+	// Insert into container
+	m_blocks[block_y] = block;
 }
 
-void MapSector::removeBlock(MapBlock *block)
+void MapSector::deleteBlock(MapBlock *block)
 {
 	s16 block_y = block->getPos().Y;
 
-	JMutexAutoLock lock(m_mutex);
-	
 	// Clear from cache
-	m_block_cache = NULL;
-	
-	// Remove from container
-	m_blocks.remove(block_y);
-}
-
-void MapSector::getBlocks(core::list<MapBlock*> &dest)
-{
-	JMutexAutoLock lock(m_mutex);
-
-	core::list<MapBlock*> ref_list;
-
-	core::map<s16, MapBlock*>::Iterator bi;
-
-	bi = m_blocks.getIterator();
-	for(; bi.atEnd() == false; bi++)
-	{
-		MapBlock *b = bi.getNode()->getValue();
-		dest.push_back(b);
-	}
-}
-
-/*
-	ServerMapSector
-*/
-
-ServerMapSector::ServerMapSector(NodeContainer *parent, v2s16 pos, u16 hm_split):
-		MapSector(parent, pos),
-		m_hm_split(hm_split),
-		m_objects(NULL)
-{
-	// hm_split has to be 1 or 2^x
-	assert(hm_split == 0 || hm_split == 1 || (hm_split & (hm_split-1)) == 0);
-	assert(hm_split * hm_split <= MAPSECTOR_FIXEDHEIGHTMAPS_MAXCOUNT);
-	
-	for(u16 i=0; i<hm_split*hm_split; i++)
-		m_heightmaps[i] = NULL;
-}
-
-ServerMapSector::~ServerMapSector()
-{
-	u16 hm_count = m_hm_split * m_hm_split;
-
-	// Write heightmaps
-	for(u16 i=0; i<hm_count; i++)
-	{
-		if(m_heightmaps[i])
-			delete m_heightmaps[i];
-	}
-
-	if(m_objects)
-		delete m_objects;
-}
-
-void ServerMapSector::setHeightmap(v2s16 hm_p, FixedHeightmap *hm)
-{
-	assert(isInArea(hm_p, m_hm_split));
-
-	s16 i = hm_p.Y * m_hm_split + hm_p.X;
-	
-	// Don't allow setting already set heightmaps as of now
-	assert(m_heightmaps[i] == NULL);
-	
-	/*std::cout<<"MapSector::setHeightmap for sector "
-			<<"("<<m_pos.X<<","<<m_pos.Y<<"): "
-			<<"Setting heightmap "
-			<<"("<<hm_p.X<<","<<hm_p.Y<<")"
-			<<" which is i="<<i
-			<<" to pointer "<<(long long)hm
-			<<std::endl;*/
-
-	m_heightmaps[i] = hm;
-	
-	differs_from_disk = true;
-}
-
-FixedHeightmap * ServerMapSector::getHeightmap(v2s16 hm_p)
-{
-	assert(isInArea(hm_p, m_hm_split));
-
-	s16 i = hm_p.Y * m_hm_split + hm_p.X;
-	
-	return m_heightmaps[i];
-}
-
-f32 ServerMapSector::getGroundHeight(v2s16 p, bool generate)
-{
-	// If no heightmaps
-	if(m_hm_split == 0)
-	{
-		/*std::cout<<"Sector has no heightmap"
-				<<" while trying to get height at ("<<p.X<<","<<p.Y<<")"
-				<<" for sector ("<<m_pos.X<<","<<m_pos.Y<<")"
-				<<std::endl;*/
-		return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-	}
-	
-	// Side length of heightmap
-	s16 hm_d = MAP_BLOCKSIZE / m_hm_split;
-
-	// Position of selected heightmap
-	v2s16 hm_p = getContainerPos(p, hm_d);
-	if(isInArea(hm_p, m_hm_split) == false)
-	{
-		/*std::cout<<"Sector has no heightmap ("<<hm_p.X<<","<<hm_p.Y<<")"
-				<<" while trying to get height at ("<<p.X<<","<<p.Y<<")"
-				<<" for sector ("<<m_pos.X<<","<<m_pos.Y<<")"
-				<<std::endl;*/
-		return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-	}
-
-	// Selected heightmap
-	FixedHeightmap *hm = m_heightmaps[hm_p.Y * m_hm_split + hm_p.X];
-
-	if(hm == NULL)
-	{
-		/*std::cout<<"Sector heightmap ("<<hm_p.X<<","<<hm_p.Y<<")"
-				" is NULL"
-				<<" while trying to get height at ("<<p.X<<","<<p.Y<<")"
-				<<" for sector ("<<m_pos.X<<","<<m_pos.Y<<")"
-				<<std::endl;*/
-		return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-	}
-	
-	// Position in selected heighmap
-	v2s16 p_in_hm = p - hm_p * hm_d;
-	if(isInArea(p_in_hm, hm_d+1) == false)
-	{
-		/*std::cout<<"Position ("<<p_in_hm.X<<","<<p_in_hm.Y<<")"
-				" not in sector heightmap area"
-				<<" while trying to get height at ("<<p.X<<","<<p.Y<<")"
-				<<" for sector ("<<m_pos.X<<","<<m_pos.Y<<")"
-				<<std::endl;*/
-		return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-	}
-	
-	f32 h = hm->getGroundHeight(p_in_hm);
-	
-	/*if(h < GROUNDHEIGHT_VALID_MINVALUE)
-	{
-		std::cout<<"Sector heightmap ("<<hm_p.X<<","<<hm_p.Y<<")"
-				" returned invalid value"
-				<<" while trying to get height at ("<<p.X<<","<<p.Y<<")"
-				<<" which is ("<<p_in_hm.X<<","<<p_in_hm.Y<<") in heightmap"
-				<<" for sector ("<<m_pos.X<<","<<m_pos.Y<<")"
-				<<std::endl;
-	}*/
-
-	return h;
-}
-
-void ServerMapSector::setGroundHeight(v2s16 p, f32 y, bool generate)
-{
-	/*
-		NOTE:
-		This causes glitches because the sector cannot be actually
-		modified according to heightmap changes.
-
-		This is useful when generating continued sub-heightmaps
-		inside the sector.
-	*/
-
-	// If no heightmaps
-	if(m_hm_split == 0)
-		return;
-	
-	// Side length of heightmap
-	s16 hm_d = MAP_BLOCKSIZE / m_hm_split;
-
-	// Position of selected heightmap
-	v2s16 hm_p = getContainerPos(p, hm_d);
-	if(isInArea(hm_p, m_hm_split) == false)
-		return;
+	m_block_cache = nullptr;
 
-	// Selected heightmap
-	FixedHeightmap *hm = m_heightmaps[hm_p.Y * m_hm_split + hm_p.X];
+	// Remove from container
+	m_blocks.erase(block_y);
 
-	if(hm == NULL)
-		return;
-	
-	// Position in selected heighmap
-	v2s16 p_in_hm = p - hm_p * hm_d;
-	if(isInArea(p_in_hm, hm_d) == false)
-		return;
-	
-	hm->setGroundHeight(p_in_hm, y);
-	
-	differs_from_disk = true;
+	// Delete
+	delete block;
 }
 
-void ServerMapSector::serialize(std::ostream &os, u8 version)
+void MapSector::getBlocks(MapBlockVect &dest)
 {
-	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);
-	
-	/*
-		Serialize heightmap(s)
-	*/
-
-	// Version with single heightmap
-	if(version <= 7)
-	{
-		u32 heightmap_size =
-				FixedHeightmap::serializedLength(version, MAP_BLOCKSIZE);
-		
-		SharedBuffer<u8> data(heightmap_size);
-		m_heightmaps[0]->serialize(*data, version);
-
-		os.write((const char*)*data, heightmap_size);
-		
-		if(version >= 5)
-		{
-			/*
-				Write objects
-			*/
-			
-			u16 object_count;
-			if(m_objects->size() > 65535)
-				object_count = 65535;
-			else
-				object_count = m_objects->size();
-
-			u8 b[2];
-			writeU16(b, object_count);
-			os.write((char*)b, 2);
-			
-			core::map<v3s16, u8>::Iterator i;
-			i = m_objects->getIterator();
-			for(; i.atEnd() == false; i++)
-			{
-				v3s16 p = i.getNode()->getKey();
-				u8 d = i.getNode()->getValue();
-				u8 b[7];
-				writeV3S16(&b[0], p);
-				b[6] = d;
-				os.write((char*)b, 7);
-			}
-		}
-	}
-	// Version with multiple heightmaps
-	else
-	{
-		u8 buf[2];
-		
-		if(m_hm_split > 255)
-			throw SerializationError("Sector has too many heightmaps");
-		
-		// Write heightmap split ratio
-		writeU8(buf, m_hm_split);
-		os.write((char*)buf, 1);
-
-		// If there are heightmaps, write them
-		if(m_hm_split != 0)
-		{
-			u16 hm_d = MAP_BLOCKSIZE / m_hm_split;
-
-			u32 hm_size = FixedHeightmap::serializedLength(version, hm_d);
-			SharedBuffer<u8> data(hm_size);
-			
-			u16 hm_count = m_hm_split * m_hm_split;
-
-			// Write heightmaps
-			for(u16 i=0; i<hm_count; i++)
-			{
-				m_heightmaps[i]->serialize(*data, version);
-				os.write((const char*)*data, hm_size);
-			}
-		}
-	
-		/*
-			Write objects
-		*/
-		
-		u16 object_count;
-		if(m_objects->size() > 65535)
-			object_count = 65535;
-		else
-			object_count = m_objects->size();
-
-		u8 b[2];
-		writeU16(b, object_count);
-		os.write((char*)b, 2);
-		
-		core::map<v3s16, u8>::Iterator i;
-		i = m_objects->getIterator();
-		for(; i.atEnd() == false; i++)
-		{
-			v3s16 p = i.getNode()->getKey();
-			u8 d = i.getNode()->getValue();
-			u8 b[7];
-			writeV3S16(&b[0], p);
-			b[6] = d;
-			os.write((char*)b, 7);
-		}
+	for (auto &block : m_blocks) {
+		dest.push_back(block.second);
 	}
 }
-
-ServerMapSector* ServerMapSector::deSerialize(
-		std::istream &is,
-		NodeContainer *parent,
-		v2s16 p2d,
-		Heightmap *master_hm,
-		core::map<v2s16, MapSector*> & sectors
-	)
-{
-	/*
-		[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");
-	
-	/*
-		Read heightmap(s)
-	*/
-
-	FixedHeightmap *hms[MAPSECTOR_FIXEDHEIGHTMAPS_MAXCOUNT];
-	u16 hm_split = 0;
-	
-	// Version with a single heightmap
-	if(version <= 7)
-	{
-		hm_split = 1;
-
-		u32 hm_size =
-				FixedHeightmap::serializedLength(version, MAP_BLOCKSIZE);
-		
-		SharedBuffer<u8> data(hm_size);
-		is.read((char*)*data, hm_size);
-
-		hms[0] = new FixedHeightmap(master_hm, p2d, MAP_BLOCKSIZE);
-		hms[0]->deSerialize(*data, version);
-	}
-	// Version with multiple heightmaps
-	else
-	{
-		u8 buf[2];
-
-		// Read split ratio
-		is.read((char*)buf, 1);
-		hm_split = readU8(buf);
-
-		// If there are heightmaps, read them
-		if(hm_split != 0)
-		{
-			u16 hm_count = hm_split * hm_split;
-
-			if(hm_count > MAPSECTOR_FIXEDHEIGHTMAPS_MAXCOUNT)
-				throw SerializationError("Sector has too many heightmaps");
-			
-			u16 hm_d = MAP_BLOCKSIZE / hm_split;
-
-			u32 hm_size = FixedHeightmap::serializedLength(version, hm_d);
-			
-			u16 i=0;
-			for(s16 y=0; y<hm_split; y++)
-			for(s16 x=0; x<hm_split; x++)
-			{
-				SharedBuffer<u8> data(hm_size);
-				is.read((char*)*data, hm_size);
-
-				hms[i] = new FixedHeightmap(master_hm, p2d+v2s16(x,y), hm_d);
-				hms[i]->deSerialize(*data, version);
-				i++;
-			}
-		}
-	}
-
-	/*
-		Read objects
-	*/
-
-	core::map<v3s16, u8> *objects = new core::map<v3s16, u8>;
-
-	if(version >= 5)
-	{
-		u8 b[2];
-		is.read((char*)b, 2);
-		u16 object_count = readU16(b);
-
-		for(u16 i=0; i<object_count; i++)
-		{
-			u8 b[7];
-			is.read((char*)b, 7);
-			v3s16 p = readV3S16(&b[0]);
-			u8 d = b[6];
-			objects->insert(p, d);
-		}
-	}
-	
-	/*
-		Get or create sector
-	*/
-
-	ServerMapSector *sector = NULL;
-
-	core::map<v2s16, MapSector*>::Node *n = sectors.find(p2d);
-
-	if(n != NULL)
-	{
-		dstream<<"deSerializing existent sectors not supported "
-				"at the moment, because code hasn't been tested."
-				<<std::endl;
-		assert(0);
-		// NOTE: At least hm_split mismatch would have to be checked
-		
-		//sector = n->getValue();
-	}
-	else
-	{
-		sector = new ServerMapSector(parent, p2d, hm_split);
-		sectors.insert(p2d, sector);
-	}
-
-	/*
-		Set stuff in sector
-	*/
-
-	// Set heightmaps
-	
-	sector->m_hm_split = hm_split;
-
-	u16 hm_count = hm_split * hm_split;
-
-	for(u16 i=0; i<hm_count; i++)
-	{
-		// Set (or change) heightmap
-		FixedHeightmap *oldhm = sector->m_heightmaps[i];
-		sector->m_heightmaps[i] = hms[i];
-		if(oldhm != NULL)
-			delete oldhm;
-	}
-	
-	// Set (or change) objects
-	core::map<v3s16, u8> *oldfo = sector->m_objects;
-	sector->m_objects = objects;
-	if(oldfo)
-		delete oldfo;
-
-	return sector;
-}
-
-#ifndef SERVER
-/*
-	ClientMapSector
-*/
-
-ClientMapSector::ClientMapSector(NodeContainer *parent, v2s16 pos):
-		MapSector(parent, pos)
-{
-}
-
-ClientMapSector::~ClientMapSector()
-{
-}
-
-void ClientMapSector::deSerialize(std::istream &is)
-{
-	/*
-		[0] u8 serialization version
-		[1] s16 corners[0]
-		[3] s16 corners[1]
-		[5] s16 corners[2]
-		[7] s16 corners[3]
-		size = 9
-		
-		In which corners are in these positions
-		v2s16(0,0),
-		v2s16(1,0),
-		v2s16(1,1),
-		v2s16(0,1),
-	*/
-	
-	// 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");
-	if(version <= 7)
-		throw VersionMismatchException("ERROR: MapSector format not supported");
-	
-	u8 buf[2];
-	
-	// Read corners
-	is.read((char*)buf, 2);
-	s16 c0 = readU16(buf);
-	is.read((char*)buf, 2);
-	s16 c1 = readU16(buf);
-	is.read((char*)buf, 2);
-	s16 c2 = readU16(buf);
-	is.read((char*)buf, 2);
-	s16 c3 = readU16(buf);
-	
-	/*
-		Set stuff in sector
-	*/
-	
-	m_corners[0] = c0;
-	m_corners[1] = c1;
-	m_corners[2] = c2;
-	m_corners[3] = c3;
-}
-#endif // !SERVER
-
-//END