From b3a2ef1a911b5ee22ff6478b5a3f9a12f6e40121 Mon Sep 17 00:00:00 2001
From: sapier <Sapier at GMX dot net>
Date: Mon, 9 Jun 2014 14:25:35 +0200
Subject: [PATCH] Remove MapVoxelManipulator not really used by anyone

---
 src/map.cpp | 169 +---------------------------------------------------
 src/map.h   |  34 ++++-------
 2 files changed, 13 insertions(+), 190 deletions(-)

diff --git a/src/map.cpp b/src/map.cpp
index 814eea4c..35bd485a 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -3484,167 +3484,10 @@ void ServerMap::PrintInfo(std::ostream &out)
 	out<<"ServerMap: ";
 }
 
-/*
-	MapVoxelManipulator
-*/
-
-MapVoxelManipulator::MapVoxelManipulator(Map *map)
-{
-	m_map = map;
-}
-
-MapVoxelManipulator::~MapVoxelManipulator()
-{
-	/*infostream<<"MapVoxelManipulator: blocks: "<<m_loaded_blocks.size()
-			<<std::endl;*/
-}
-
-void MapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
-{
-	TimeTaker timer1("emerge", &emerge_time);
-
-	// Units of these are MapBlocks
-	v3s16 p_min = getNodeBlockPos(a.MinEdge);
-	v3s16 p_max = getNodeBlockPos(a.MaxEdge);
-
-	VoxelArea block_area_nodes
-			(p_min*MAP_BLOCKSIZE, (p_max+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
-
-	addArea(block_area_nodes);
-
-	for(s32 z=p_min.Z; z<=p_max.Z; z++)
-	for(s32 y=p_min.Y; y<=p_max.Y; y++)
-	for(s32 x=p_min.X; x<=p_max.X; x++)
-	{
-		u8 flags = 0;
-		MapBlock *block;
-		v3s16 p(x,y,z);
-		std::map<v3s16, u8>::iterator n;
-		n = m_loaded_blocks.find(p);
-		if(n != m_loaded_blocks.end())
-			continue;
-
-		bool block_data_inexistent = false;
-		try
-		{
-			TimeTaker timer1("emerge load", &emerge_load_time);
-
-			/*infostream<<"Loading block (caller_id="<<caller_id<<")"
-					<<" ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
-					<<" wanted area: ";
-			a.print(infostream);
-			infostream<<std::endl;*/
-
-			block = m_map->getBlockNoCreate(p);
-			if(block->isDummy())
-				block_data_inexistent = true;
-			else
-				block->copyTo(*this);
-		}
-		catch(InvalidPositionException &e)
-		{
-			block_data_inexistent = true;
-		}
-
-		if(block_data_inexistent)
-		{
-			flags |= VMANIP_BLOCK_DATA_INEXIST;
-
-			VoxelArea a(p*MAP_BLOCKSIZE, (p+1)*MAP_BLOCKSIZE-v3s16(1,1,1));
-			// Fill with VOXELFLAG_NO_DATA
-			for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
-			for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
-			{
-				s32 i = m_area.index(a.MinEdge.X,y,z);
-				memset(&m_flags[i], VOXELFLAG_NO_DATA, MAP_BLOCKSIZE);
-			}
-		}
-		/*else if (block->getNode(0, 0, 0).getContent() == CONTENT_IGNORE)
-		{
-			// Mark that block was loaded as blank
-			flags |= VMANIP_BLOCK_CONTAINS_CIGNORE;
-		}*/
-
-		m_loaded_blocks[p] = flags;
-	}
-
-	//infostream<<"emerge done"<<std::endl;
-}
-
-/*
-	SUGG: Add an option to only update eg. water and air nodes.
-	      This will make it interfere less with important stuff if
-		  run on background.
-*/
-void MapVoxelManipulator::blitBack
-		(std::map<v3s16, MapBlock*> & modified_blocks)
-{
-	if(m_area.getExtent() == v3s16(0,0,0))
-		return;
-
-	//TimeTaker timer1("blitBack");
-
-	/*infostream<<"blitBack(): m_loaded_blocks.size()="
-			<<m_loaded_blocks.size()<<std::endl;*/
-
-	/*
-		Initialize block cache
-	*/
-	v3s16 blockpos_last;
-	MapBlock *block = NULL;
-	bool block_checked_in_modified = false;
-
-	for(s32 z=m_area.MinEdge.Z; z<=m_area.MaxEdge.Z; z++)
-	for(s32 y=m_area.MinEdge.Y; y<=m_area.MaxEdge.Y; y++)
-	for(s32 x=m_area.MinEdge.X; x<=m_area.MaxEdge.X; x++)
-	{
-		v3s16 p(x,y,z);
-
-		u8 f = m_flags[m_area.index(p)];
-		if(f & (VOXELFLAG_NO_DATA))
-			continue;
-
-		MapNode &n = m_data[m_area.index(p)];
-
-		v3s16 blockpos = getNodeBlockPos(p);
-
-		try
-		{
-			// Get block
-			if(block == NULL || blockpos != blockpos_last){
-				block = m_map->getBlockNoCreate(blockpos);
-				blockpos_last = blockpos;
-				block_checked_in_modified = false;
-			}
-
-			// Calculate relative position in block
-			v3s16 relpos = p - blockpos * MAP_BLOCKSIZE;
-
-			// Don't continue if nothing has changed here
-			if(block->getNode(relpos) == n)
-				continue;
-
-			//m_map->setNode(m_area.MinEdge + p, n);
-			block->setNode(relpos, n);
-
-			/*
-				Make sure block is in modified_blocks
-			*/
-			if(block_checked_in_modified == false)
-			{
-				modified_blocks[blockpos] = block;
-				block_checked_in_modified = true;
-			}
-		}
-		catch(InvalidPositionException &e)
-		{
-		}
-	}
-}
-
 ManualMapVoxelManipulator::ManualMapVoxelManipulator(Map *map):
-		MapVoxelManipulator(map),
-		m_create_area(false)
+		VoxelManipulator(),
+		m_create_area(false),
+		m_map(map)
 {
 }
 
@@ -3652,12 +3495,6 @@ ManualMapVoxelManipulator::~ManualMapVoxelManipulator()
 {
 }
 
-void ManualMapVoxelManipulator::emerge(VoxelArea a, s32 caller_id)
-{
-	// Just create the area so that it can be pointed to
-	VoxelManipulator::addArea(a);
-}
-
 void ManualMapVoxelManipulator::initialEmerge(v3s16 blockpos_min,
 						v3s16 blockpos_max, bool load_if_inexistent)
 {
diff --git a/src/map.h b/src/map.h
index 46580ed3..7f482929 100644
--- a/src/map.h
+++ b/src/map.h
@@ -523,14 +523,15 @@ private:
 	Database *dbase;
 };
 
+
 #define VMANIP_BLOCK_DATA_INEXIST     1
 #define VMANIP_BLOCK_CONTAINS_CIGNORE 2
 
-class MapVoxelManipulator : public VoxelManipulator
+class ManualMapVoxelManipulator : public VoxelManipulator
 {
 public:
-	MapVoxelManipulator(Map *map);
-	virtual ~MapVoxelManipulator();
+	ManualMapVoxelManipulator(Map *map);
+	virtual ~ManualMapVoxelManipulator();
 
 	virtual void clear()
 	{
@@ -538,30 +539,9 @@ public:
 		m_loaded_blocks.clear();
 	}
 
-	virtual void emerge(VoxelArea a, s32 caller_id=-1);
-
-	void blitBack(std::map<v3s16, MapBlock*> & modified_blocks);
-
-protected:
-	Map *m_map;
-	/*
-		key = blockpos
-		value = flags describing the block
-	*/
-	std::map<v3s16, u8> m_loaded_blocks;
-};
-
-class ManualMapVoxelManipulator : public MapVoxelManipulator
-{
-public:
-	ManualMapVoxelManipulator(Map *map);
-	virtual ~ManualMapVoxelManipulator();
-
 	void setMap(Map *map)
 	{m_map = map;}
 
-	virtual void emerge(VoxelArea a, s32 caller_id=-1);
-
 	void initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
 						bool load_if_inexistent = true);
 
@@ -570,6 +550,12 @@ public:
 
 protected:
 	bool m_create_area;
+	Map *m_map;
+	/*
+		key = blockpos
+		value = flags describing the block
+	*/
+	std::map<v3s16, u8> m_loaded_blocks;
 };
 
 #endif