cleaned map stuff

7 files changed, 67 insertions, 285 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 73a960ecc..ac58d1d0f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -206,7 +206,8 @@ else()
 	endif()
 
 	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} -O3 -ffast-math -Wall -fomit-frame-pointer -pipe -funroll-loops")
-	set(CMAKE_CXX_FLAGS_DEBUG "-g -O1 -Wall ${WARNING_FLAGS}")
+	#set(CMAKE_CXX_FLAGS_DEBUG "-g -O1 -Wall ${WARNING_FLAGS}")
+	set(CMAKE_CXX_FLAGS_DEBUG "-g -O0 -Wall ${WARNING_FLAGS}")
 
 	if(USE_GPROF)
 		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -pg")
diff --git a/src/client.cpp b/src/client.cpp
index abc056505..f97acfd43 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "main.h"
 #include <sstream>
 #include "porting.h"
+#include "mapsector.h"
 
 void * MeshUpdateThread::Thread()
 {
@@ -715,15 +716,16 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 			//TimeTaker timer("MapBlock deSerialize");
 			// 0ms
 			
-			try{
-				block = sector->getBlockNoCreate(p.Y);
+			block = sector->getBlockNoCreateNoEx(p.Y);
+			if(block)
+			{
 				/*
 					Update an existing block
 				*/
 				//dstream<<"Updating"<<std::endl;
 				block->deSerialize(istr, ser_version);
 			}
-			catch(InvalidPositionException &e)
+			else
 			{
 				/*
 					Create a new block
@@ -952,6 +954,8 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 	}
 	else if(command == TOCLIENT_SECTORMETA)
 	{
+		dstream<<"Client received DEPRECATED TOCLIENT_SECTORMETA"<<std::endl;
+#if 0
 		/*
 			[0] u16 command
 			[2] u8 sector count
@@ -987,6 +991,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 				((ClientMap&)m_env.getMap()).deSerializeSector(pos, is);
 			}
 		} //envlock
+#endif
 	}
 	else if(command == TOCLIENT_INVENTORY)
 	{
diff --git a/src/map.cpp b/src/map.cpp
index 0de9cf18e..4a8aeed59 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -18,8 +18,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "map.h"
+#include "mapsector.h"
+#include "mapblock.h"
 #include "main.h"
-#include "jmutexautolock.h"
 #include "client.h"
 #include "filesys.h"
 #include "utility.h"
@@ -122,31 +123,23 @@ MapSector * Map::getSectorNoGenerate(v2s16 p)
 	return sector;
 }
 
-MapBlock * Map::getBlockNoCreate(v3s16 p3d)
-{	
+MapBlock * Map::getBlockNoCreateNoEx(v3s16 p3d)
+{
 	v2s16 p2d(p3d.X, p3d.Z);
 	MapSector * sector = getSectorNoGenerate(p2d);
-
-	MapBlock *block = sector->getBlockNoCreate(p3d.Y);
-
+	MapBlock *block = sector->getBlockNoCreateNoEx(p3d.Y);
 	return block;
 }
 
-MapBlock * Map::getBlockNoCreateNoEx(v3s16 p3d)
-{
-	try
-	{
-		v2s16 p2d(p3d.X, p3d.Z);
-		MapSector * sector = getSectorNoGenerate(p2d);
-		MapBlock *block = sector->getBlockNoCreate(p3d.Y);
-		return block;
-	}
-	catch(InvalidPositionException &e)
-	{
-		return NULL;
-	}
+MapBlock * Map::getBlockNoCreate(v3s16 p3d)
+{	
+	MapBlock *block = getBlockNoCreateNoEx(p3d);
+	if(block == NULL)
+		throw InvalidPositionException();
+	return block;
 }
 
+
 /*MapBlock * Map::getBlockCreate(v3s16 p3d)
 {
 	v2s16 p2d(p3d.X, p3d.Z);
@@ -1422,9 +1415,8 @@ u32 Map::unloadUnusedData(float timeout, bool only_blocks,
 				// Save if modified
 				if(block->getModified() != MOD_STATE_CLEAN)
 					saveBlock(block);
-				// Unload
-				sector->removeBlock(block);
-				delete block;
+				// Delete from memory
+				sector->deleteBlock(block);
 			}
 			else
 			{
@@ -3062,10 +3054,8 @@ void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSecto
 
 		MapBlock *block = NULL;
 		bool created_new = false;
-		try{
-			block = sector->getBlockNoCreate(p3d.Y);
-		}
-		catch(InvalidPositionException &e)
+		block = sector->getBlockNoCreateNoEx(p3d.Y);
+		if(block == NULL)
 		{
 			block = sector->createBlankBlockNoInsert(p3d.Y);
 			created_new = true;
@@ -3235,6 +3225,7 @@ MapSector * ClientMap::emergeSector(v2s16 p2d)
 	return sector;
 }
 
+#if 0
 void ClientMap::deSerializeSector(v2s16 p2d, std::istream &is)
 {
 	DSTACK(__FUNCTION_NAME);
@@ -3260,6 +3251,7 @@ void ClientMap::deSerializeSector(v2s16 p2d, std::istream &is)
 
 	sector->deSerialize(is);
 }
+#endif
 
 void ClientMap::OnRegisterSceneNode()
 {
diff --git a/src/map.h b/src/map.h
index 86b6b6e18..99593a589 100644
--- a/src/map.h
+++ b/src/map.h
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define MAP_HEADER
 
 #include <jmutex.h>
+#include <jmutexautolock.h>
 #include <jthread.h>
 #include <iostream>
 
@@ -35,12 +36,17 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "common_irrlicht.h"
 #include "mapnode.h"
 #include "mapblock.h"
-#include "mapsector.h"
 #include "constants.h"
 #include "voxel.h"
 #include "mapchunk.h"
 #include "nodemetadata.h"
 
+class MapSector;
+class ServerMapSector;
+class ClientMapSector;
+
+class MapBlock;
+
 namespace mapgen{
 	struct BlockMakeData;
 };
@@ -321,7 +327,6 @@ protected:
 	core::map<MapEventReceiver*, bool> m_event_receivers;
 	
 	core::map<v2s16, MapSector*> m_sectors;
-	//JMutex m_sector_mutex;
 
 	// Be sure to set this to NULL when the cached sector is deleted 
 	MapSector *m_sector_cache;
@@ -547,7 +552,7 @@ public:
 	*/
 	MapSector * emergeSector(v2s16 p);
 
-	void deSerializeSector(v2s16 p2d, std::istream &is);
+	//void deSerializeSector(v2s16 p2d, std::istream &is);
 
 	/*
 		ISceneNode methods
diff --git a/src/mapsector.cpp b/src/mapsector.cpp
index 97101dd36..389714f40 100644
--- a/src/mapsector.cpp
+++ b/src/mapsector.cpp
@@ -21,15 +21,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "jmutexautolock.h"
 #include "client.h"
 #include "exceptions.h"
+#include "mapblock.h"
 
 MapSector::MapSector(NodeContainer *parent, v2s16 pos):
-		differs_from_disk(true),
+		differs_from_disk(false),
 		m_parent(parent),
 		m_pos(pos),
 		m_block_cache(NULL)
 {
-	m_mutex.Init();
-	assert(m_mutex.IsInitialized());
 }
 
 MapSector::~MapSector()
@@ -39,8 +38,6 @@ MapSector::~MapSector()
 
 void MapSector::deleteBlocks()
 {
-	JMutexAutoLock lock(m_mutex);
-
 	// Clear cache
 	m_block_cache = NULL;
 
@@ -83,26 +80,12 @@ MapBlock * MapSector::getBlockBuffered(s16 y)
 
 MapBlock * MapSector::getBlockNoCreateNoEx(s16 y)
 {
-	JMutexAutoLock lock(m_mutex);
-	
 	return getBlockBuffered(y);
 }
 
-MapBlock * MapSector::getBlockNoCreate(s16 y)
-{
-	MapBlock *block = getBlockNoCreateNoEx(y);
-
-	if(block == NULL)
-		throw InvalidPositionException();
-	
-	return block;
-}
-
 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);
 
 	v3s16 blockpos_map(m_pos.X, y, m_pos.Y);
 	
@@ -113,8 +96,6 @@ MapBlock * MapSector::createBlankBlockNoInsert(s16 y)
 
 MapBlock * MapSector::createBlankBlock(s16 y)
 {
-	JMutexAutoLock lock(m_mutex);
-	
 	MapBlock *block = createBlankBlockNoInsert(y);
 	
 	m_blocks.insert(y, block);
@@ -126,39 +107,34 @@ void MapSector::insertBlock(MapBlock *block)
 {
 	s16 block_y = block->getPos().Y;
 
-	{
-		JMutexAutoLock lock(m_mutex);
-
-		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.insert(block_y, block);
+	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.insert(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);
+
+	// Delete
+	delete block;
 }
 
 void MapSector::getBlocks(core::list<MapBlock*> &dest)
 {
-	JMutexAutoLock lock(m_mutex);
-
 	core::list<MapBlock*> ref_list;
 
 	core::map<s16, MapBlock*>::Iterator bi;
@@ -184,15 +160,6 @@ ServerMapSector::~ServerMapSector()
 {
 }
 
-f32 ServerMapSector::getGroundHeight(v2s16 p, bool generate)
-{
-	return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-}
-
-void ServerMapSector::setGroundHeight(v2s16 p, f32 y, bool generate)
-{
-}
-
 void ServerMapSector::serialize(std::ostream &os, u8 version)
 {
 	if(!ser_ver_supported(version))
@@ -289,45 +256,6 @@ 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");
-	
-	u8 buf[2];
-	
-	// Dummy read corners
-	is.read((char*)buf, 2);
-	is.read((char*)buf, 2);
-	is.read((char*)buf, 2);
-	is.read((char*)buf, 2);
-	
-	/*
-		Set stuff in sector
-	*/
-	
-	// Nothing here
-
-}
 #endif // !SERVER
 
 //END
diff --git a/src/mapsector.h b/src/mapsector.h
index fda290cd7..c5a41ca19 100644
--- a/src/mapsector.h
+++ b/src/mapsector.h
@@ -26,9 +26,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include <jmutex.h>
 #include "common_irrlicht.h"
-#include "mapblock.h"
-//#include "heightmap.h"
 #include "exceptions.h"
+#include <ostream>
+
+class MapBlock;
+class NodeContainer;
 
 /*
 	This is an Y-wise stack of MapBlocks.
@@ -37,18 +39,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define MAPSECTOR_SERVER 0
 #define MAPSECTOR_CLIENT 1
 
-class MapSector: public NodeContainer
+class MapSector
 {
 public:
 	
 	MapSector(NodeContainer *parent, v2s16 pos);
 	virtual ~MapSector();
 
-	virtual u16 nodeContainerId() const
-	{
-		return NODECONTAINER_ID_MAPSECTOR;
-	}
-
 	virtual u32 getId() const = 0;
 
 	void deleteBlocks();
@@ -59,167 +56,32 @@ public:
 	}
 
 	MapBlock * getBlockNoCreateNoEx(s16 y);
-	MapBlock * getBlockNoCreate(s16 y);
 	MapBlock * createBlankBlockNoInsert(s16 y);
 	MapBlock * createBlankBlock(s16 y);
-	//MapBlock * getBlock(s16 y, bool generate=true);
 
 	void insertBlock(MapBlock *block);
 	
-	// This is used to remove a dummy from the sector while generating it.
-	// Block is only removed from internal container, not deleted.
-	void removeBlock(MapBlock *block);
+	void deleteBlock(MapBlock *block);
 	
-	/*
-		This might not be a thread-safe depending on the day.
-		See the implementation.
-	*/
 	void getBlocks(core::list<MapBlock*> &dest);
 	
-	/*
-		If all nodes in area can be accessed, returns true and
-		adds all blocks in area to blocks.
-
-		If all nodes in area cannot be accessed, returns false.
-
-		The implementation of this is quite slow
-
-		if blocks==NULL; it is not accessed at all.
-	*/
-	bool isValidArea(v3s16 p_min_nodes, v3s16 p_max_nodes,
-			core::map<s16, MapBlock*> *blocks)
-	{
-		core::map<s16, MapBlock*> bs;
-		
-		v3s16 p_min = getNodeBlockPos(p_min_nodes);
-		v3s16 p_max = getNodeBlockPos(p_max_nodes);
-		if(p_min.X != 0 || p_min.Z != 0
-				|| p_max.X != 0 || p_max.Z != 0)
-			return false;
-		v3s16 y;
-		for(s16 y=p_min.Y; y<=p_max.Y; y++)
-		{
-			try{
-				MapBlock *block = getBlockNoCreate(y);
-				if(block->isDummy())
-					return false;
-				if(blocks!=NULL)
-					bs[y] = block;
-			}
-			catch(InvalidPositionException &e)
-			{
-				return false;
-			}
-		}
-
-		if(blocks!=NULL)
-		{
-			for(core::map<s16, MapBlock*>::Iterator i=bs.getIterator();
-					i.atEnd()==false; i++)
-			{
-				MapBlock *block = i.getNode()->getValue();
-				s16 y = i.getNode()->getKey();
-				blocks->insert(y, block);
-			}
-		}
-		return true;
-	}
-
-	void getBlocksInArea(v3s16 p_min_nodes, v3s16 p_max_nodes,
-			core::map<v3s16, MapBlock*> &blocks)
-	{
-		v3s16 p_min = getNodeBlockPos(p_min_nodes);
-		v3s16 p_max = getNodeBlockPos(p_max_nodes);
-		v3s16 y;
-		for(s16 y=p_min.Y; y<=p_max.Y; y++)
-		{
-			try{
-				MapBlock *block = getBlockNoCreate(y);
-				blocks.insert(block->getPos(), block);
-			}
-			catch(InvalidPositionException &e)
-			{
-			}
-		}
-	}
-	
-	// virtual from NodeContainer
-	bool isValidPosition(v3s16 p)
-	{
-		v3s16 blockpos = getNodeBlockPos(p);
-
-		if(blockpos.X != 0 || blockpos.Z != 0)
-			return false;
-
-		MapBlock *blockref;
-		try{
-			blockref = getBlockNoCreate(blockpos.Y);
-		}
-		catch(InvalidPositionException &e)
-		{
-			return false;
-		}
-
-		return true;
-	}
-
-	// virtual from NodeContainer
-	MapNode getNode(v3s16 p)
-	{
-		v3s16 blockpos = getNodeBlockPos(p);
-		if(blockpos.X != 0 || blockpos.Z != 0)
-			throw InvalidPositionException
-				("MapSector only allows Y");
-
-		MapBlock * blockref = getBlockNoCreate(blockpos.Y);
-		v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
-
-		return blockref->getNode(relpos);
-	}
-	// virtual from NodeContainer
-	void setNode(v3s16 p, MapNode & n)
-	{
-		v3s16 blockpos = getNodeBlockPos(p);
-		if(blockpos.X != 0 || blockpos.Z != 0)
-			throw InvalidPositionException
-				("MapSector only allows Y");
-
-		MapBlock * blockref = getBlockNoCreate(blockpos.Y);
-		v3s16 relpos = p - blockpos*MAP_BLOCKSIZE;
-		blockref->setNode(relpos, n);
-	}
-
-	// DEPRECATED?
-	virtual f32 getGroundHeight(v2s16 p, bool generate=false)
-	{
-		return GROUNDHEIGHT_NOTFOUND_SETVALUE;
-	}
-	virtual void setGroundHeight(v2s16 p, f32 y, bool generate=false)
-	{
-	}
-	
-	// When true, sector metadata is changed from the one on disk
-	// (sector metadata = all but blocks)
-	// Basically, this should be changed to true in every setter method
+	// Always false at the moment, because sector contains no metadata.
 	bool differs_from_disk;
 
 protected:
 	
 	// The pile of MapBlocks
 	core::map<s16, MapBlock*> m_blocks;
-	//JMutex m_blocks_mutex; // For public access functions
 
 	NodeContainer *m_parent;
 	// Position on parent (in MapBlock widths)
 	v2s16 m_pos;
-
+	
+	// Last-used block is cached here for quicker access.
 	// Be sure to set this to NULL when the cached block is deleted 
 	MapBlock *m_block_cache;
 	s16 m_block_cache_y;
 	
-	// This is used for protecting m_blocks
-	JMutex m_mutex;
-	
 	/*
 		Private methods
 	*/
@@ -237,15 +99,12 @@ public:
 	{
 		return MAPSECTOR_SERVER;
 	}
-	
-	// DEPRECATED?
-	f32 getGroundHeight(v2s16 p, bool generate=false);
-	void setGroundHeight(v2s16 p, f32 y, bool generate=false);
 
 	/*
 		These functions handle metadata.
 		They do not handle blocks.
 	*/
+
 	void serialize(std::ostream &os, u8 version);
 	
 	static ServerMapSector* deSerialize(
@@ -270,16 +129,7 @@ public:
 		return MAPSECTOR_CLIENT;
 	}
 
-	void deSerialize(std::istream &is);
-
-	/*s16 getCorner(u16 i)
-	{
-		return m_corners[i];
-	}*/
-		
 private:
-	// The ground height of the corners is stored in here
-	//s16 m_corners[4];
 };
 #endif
 	
diff --git a/src/test.cpp b/src/test.cpp
index 7b86750d8..9ea402b6f 100644
--- a/src/test.cpp
+++ b/src/test.cpp
@@ -31,6 +31,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <sstream>
 #include "porting.h"
 #include "content_mapnode.h"
+#include "mapsector.h"
 
 /*
 	Asserts that the exception occurs
@@ -641,13 +642,13 @@ struct TestMapSector
 		// Create one with no heightmaps
 		ServerMapSector sector(&parent, v2s16(1,1));
 		
-		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
-		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(1));
+		assert(sector.getBlockNoCreateNoEx(0) == 0);
+		assert(sector.getBlockNoCreateNoEx(1) == 0);
 
 		MapBlock * bref = sector.createBlankBlock(-2);
 		
-		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
-		assert(sector.getBlockNoCreate(-2) == bref);
+		assert(sector.getBlockNoCreateNoEx(0) == 0);
+		assert(sector.getBlockNoCreateNoEx(-2) == bref);
 		
 		//TODO: Check for AlreadyExistsException