]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/map.cpp
Passwords - password entry at main menu, stored and checked by server
[dragonfireclient.git] / src / map.cpp
index 1608f3e05d3179482b67f0ff0b0aed4006b4ff91..cd2ba9154eadac0202782697b47cf2ff5052ce92 100644 (file)
@@ -1,6 +1,6 @@
 /*
 Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2011 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
@@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "porting.h"
 #include "mineral.h"
 #include "noise.h"
+#include "serverobject.h"
 
 /*
        Map
@@ -36,8 +37,8 @@ Map::Map(std::ostream &dout):
        m_dout(dout),
        m_sector_cache(NULL)
 {
-       m_sector_mutex.Init();
-       assert(m_sector_mutex.IsInitialized());
+       /*m_sector_mutex.Init();
+       assert(m_sector_mutex.IsInitialized());*/
 }
 
 Map::~Map()
@@ -103,7 +104,7 @@ MapSector * Map::getSectorNoGenerateNoExNoLock(v2s16 p)
 
 MapSector * Map::getSectorNoGenerateNoEx(v2s16 p)
 {
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
 
        return getSectorNoGenerateNoExNoLock(p);
 }
@@ -954,6 +955,17 @@ void Map::addNodeAndUpdate(v3s16 p, MapNode n,
        */
        
        setNode(p, n);
+
+       /*
+               Add intial metadata
+       */
+
+       NodeMetadata *meta_proto = content_features(n.d).initial_metadata;
+       if(meta_proto)
+       {
+               NodeMetadata *meta = meta_proto->clone();
+               setNodeMetadata(p, meta);
+       }
        
        /*
                If node is under sunlight and doesn't let sunlight through,
@@ -1093,6 +1105,12 @@ void Map::removeNodeAndUpdate(v3s16 p,
                                light_sources, modified_blocks);
        }
 
+       /*
+               Remove node metadata
+       */
+
+       removeNodeMetadata(p);
+
        /*
                Remove the node.
                This also clears the lighting.
@@ -1329,7 +1347,7 @@ bool Map::dayNightDiffed(v3s16 blockpos)
 */
 void Map::timerUpdate(float dtime)
 {
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
 
        core::map<v2s16, MapSector*>::Iterator si;
 
@@ -1379,7 +1397,7 @@ void Map::deleteSectors(core::list<v2s16> &list, bool only_blocks)
 u32 Map::deleteUnusedSectors(float timeout, bool only_blocks,
                core::list<v3s16> *deleted_blocks)
 {
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
 
        core::list<v2s16> sector_deletion_queue;
        core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
@@ -1696,25 +1714,88 @@ void Map::transformLiquids(core::map<v3s16, MapBlock*> & modified_blocks)
        //dstream<<"Map::transformLiquids(): loopcount="<<loopcount<<std::endl;
 }
 
-NodeMetadata* Map::getNodeMetadataClone(v3s16 p)
+NodeMetadata* Map::getNodeMetadata(v3s16 p)
 {
        v3s16 blockpos = getNodeBlockPos(p);
        v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
        MapBlock *block = getBlockNoCreateNoEx(blockpos);
        if(block == NULL)
+       {
+               dstream<<"WARNING: Map::setNodeMetadata(): Block not found"
+                               <<std::endl;
                return NULL;
-       NodeMetadata *meta = block->m_node_metadata.getClone(p_rel);
+       }
+       NodeMetadata *meta = block->m_node_metadata.get(p_rel);
        return meta;
 }
 
+void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
+{
+       v3s16 blockpos = getNodeBlockPos(p);
+       v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
+       MapBlock *block = getBlockNoCreateNoEx(blockpos);
+       if(block == NULL)
+       {
+               dstream<<"WARNING: Map::setNodeMetadata(): Block not found"
+                               <<std::endl;
+               return;
+       }
+       block->m_node_metadata.set(p_rel, meta);
+}
+
+void Map::removeNodeMetadata(v3s16 p)
+{
+       v3s16 blockpos = getNodeBlockPos(p);
+       v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
+       MapBlock *block = getBlockNoCreateNoEx(blockpos);
+       if(block == NULL)
+       {
+               dstream<<"WARNING: Map::removeNodeMetadata(): Block not found"
+                               <<std::endl;
+               return;
+       }
+       block->m_node_metadata.remove(p_rel);
+}
+
+void Map::nodeMetadataStep(float dtime,
+               core::map<v3s16, MapBlock*> &changed_blocks)
+{
+       /*
+               NOTE:
+               Currently there is no way to ensure that all the necessary
+               blocks are loaded when this is run. (They might get unloaded)
+               NOTE: ^- Actually, that might not be so. In a quick test it
+               reloaded a block with a furnace when I walked back to it from
+               a distance.
+       */
+       core::map<v2s16, MapSector*>::Iterator si;
+       si = m_sectors.getIterator();
+       for(; si.atEnd() == false; si++)
+       {
+               MapSector *sector = si.getNode()->getValue();
+               core::list< MapBlock * > sectorblocks;
+               sector->getBlocks(sectorblocks);
+               core::list< MapBlock * >::Iterator i;
+               for(i=sectorblocks.begin(); i!=sectorblocks.end(); i++)
+               {
+                       MapBlock *block = *i;
+                       bool changed = block->m_node_metadata.step(dtime);
+                       if(changed)
+                               changed_blocks[block->getPos()] = block;
+               }
+       }
+}
+
 /*
        ServerMap
 */
 
 ServerMap::ServerMap(std::string savedir):
        Map(dout_server),
-       m_seed(0)
+       m_seed(0),
+       m_map_metadata_changed(true)
 {
+       dstream<<__FUNCTION_NAME<<std::endl;
        
        //m_chunksize = 64;
        //m_chunksize = 16; // Too slow
@@ -1722,7 +1803,6 @@ ServerMap::ServerMap(std::string savedir):
        //m_chunksize = 4;
        //m_chunksize = 2;
        
-       // TODO: Save to and load from a file
        m_seed = (((u64)(myrand()%0xffff)<<0)
                        + ((u64)(myrand()%0xffff)<<16)
                        + ((u64)(myrand()%0xffff)<<32)
@@ -1756,11 +1836,19 @@ ServerMap::ServerMap(std::string savedir):
                        }
                        else
                        {
-                               // Load map metadata (seed, chunksize)
-                               loadMapMeta();
-                               
-                               // Load chunk metadata
-                               loadChunkMeta();
+                               try{
+                                       // Load map metadata (seed, chunksize)
+                                       loadMapMeta();
+
+                                       // Load chunk metadata
+                                       loadChunkMeta();
+                               }
+                               catch(FileNotGoodException &e){
+                                       dstream<<DTIME<<"WARNING: Server: Could not load "
+                                                       <<"metafile(s). Disabling chunk-based "
+                                                       <<"generation."<<std::endl;
+                                       m_chunksize = 0;
+                               }
                        
                                /*// Load sector (0,0) and throw and exception on fail
                                if(loadSectorFull(v2s16(0,0)) == false)
@@ -1805,6 +1893,8 @@ ServerMap::ServerMap(std::string savedir):
 
 ServerMap::~ServerMap()
 {
+       dstream<<__FUNCTION_NAME<<std::endl;
+       
        try
        {
                if(m_map_saving_enabled)
@@ -1978,7 +2068,7 @@ double base_rock_level_2d(u64 seed, v2s16 p)
 {
        // The base ground level
        double base = (double)WATER_LEVEL - (double)AVERAGE_MUD_AMOUNT
-                       + 25. * noise2d_perlin(
+                       + 20. * noise2d_perlin(
                        0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
                        (seed>>32)+654879876, 6, 0.6);
        
@@ -1990,7 +2080,7 @@ double base_rock_level_2d(u64 seed, v2s16 p)
                base = base2;*/
 #if 1
        // Higher ground level
-       double higher = (double)WATER_LEVEL + 25. + 45. * noise2d_perlin(
+       double higher = (double)WATER_LEVEL + 25. + 35. * noise2d_perlin(
                        0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
                        seed+85039, 5, 0.69);
        //higher = 30; // For debugging
@@ -2031,184 +2121,240 @@ double base_rock_level_2d(u64 seed, v2s16 p)
        return h;
 }
 
-#define VMANIP_FLAG_DUNGEON VOXELFLAG_CHECKED1
+double get_mud_add_amount(u64 seed, v2s16 p)
+{
+       return ((float)AVERAGE_MUD_AMOUNT + 3.0 * noise2d_perlin(
+                       0.5+(float)p.X/200, 0.5+(float)p.Y/200,
+                       seed+91013, 3, 0.55));
+}
 
 /*
-       This is the main map generation method
+       Adds random objects to block, depending on the content of the block
 */
-
-MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
-               core::map<v3s16, MapBlock*> &changed_blocks,
-               bool force)
+void addRandomObjects(MapBlock *block)
 {
-       DSTACK(__FUNCTION_NAME);
-
-       /*
-               Don't generate if already fully generated
-       */
-       if(force == false)
+       for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
+       for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
        {
-               MapChunk *chunk = getChunk(chunkpos);
-               if(chunk != NULL && chunk->getGenLevel() == GENERATED_FULLY)
+               bool last_node_walkable = false;
+               for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
                {
-                       dstream<<"generateChunkRaw(): Chunk "
-                                       <<"("<<chunkpos.X<<","<<chunkpos.Y<<")"
-                                       <<" already generated"<<std::endl;
-                       return chunk;
+                       v3s16 p(x0,y0,z0);
+                       MapNode n = block->getNodeNoEx(p);
+                       if(n.d == CONTENT_IGNORE)
+                               continue;
+                       if(content_features(n.d).liquid_type != LIQUID_NONE)
+                               continue;
+                       if(content_features(n.d).walkable)
+                       {
+                               last_node_walkable = true;
+                               continue;
+                       }
+                       if(last_node_walkable)
+                       {
+                               // If block contains light information
+                               if(content_features(n.d).param_type == CPT_LIGHT)
+                               {
+                                       if(n.getLight(LIGHTBANK_DAY) <= 3)
+                                       {
+                                               if(myrand() % 300 == 0)
+                                               {
+                                                       v3f pos_f = intToFloat(p+block->getPosRelative(), BS);
+                                                       pos_f.Y -= BS*0.4;
+                                                       ServerActiveObject *obj = new RatSAO(NULL, 0, pos_f);
+                                                       std::string data = obj->getStaticData();
+                                                       StaticObject s_obj(obj->getType(),
+                                                                       obj->getBasePosition(), data);
+                                                       // Add some
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       delete obj;
+                                               }
+                                               if(myrand() % 300 == 0)
+                                               {
+                                                       v3f pos_f = intToFloat(p+block->getPosRelative(), BS);
+                                                       pos_f.Y -= BS*0.4;
+                                                       ServerActiveObject *obj = new Oerkki1SAO(NULL,0,pos_f);
+                                                       std::string data = obj->getStaticData();
+                                                       StaticObject s_obj(obj->getType(),
+                                                                       obj->getBasePosition(), data);
+                                                       // Add one
+                                                       block->m_static_objects.insert(0, s_obj);
+                                                       delete obj;
+                                               }
+                                       }
+                               }
+                       }
+                       last_node_walkable = false;
                }
        }
+       block->setChangedFlag();
+}
 
-       dstream<<"generateChunkRaw(): Generating chunk "
-                       <<"("<<chunkpos.X<<","<<chunkpos.Y<<")"
-                       <<std::endl;
-       
-       TimeTaker timer("generateChunkRaw()");
-       
-       // The distance how far into the neighbors the generator is allowed to go.
-       s16 max_spread_amount_sectors = 2;
-       assert(max_spread_amount_sectors <= m_chunksize);
-       s16 max_spread_amount = max_spread_amount_sectors * MAP_BLOCKSIZE;
-
-       // Minimum amount of space left on sides for mud to fall in
-       //s16 min_mud_fall_space = 2;
-       
-       // Maximum diameter of stone obstacles in X and Z
-       /*s16 stone_obstacle_max_size = (max_spread_amount-min_mud_fall_space)*2;
-       assert(stone_obstacle_max_size/2 <= max_spread_amount-min_mud_fall_space);*/
-       
-       s16 y_blocks_min = -4;
-       s16 y_blocks_max = 3;
-       s16 h_blocks = y_blocks_max - y_blocks_min + 1;
-       s16 y_nodes_min = y_blocks_min * MAP_BLOCKSIZE;
-       s16 y_nodes_max = y_blocks_max * MAP_BLOCKSIZE + MAP_BLOCKSIZE - 1;
-
-       v2s16 sectorpos_base = chunk_to_sector(chunkpos);
-       s16 sectorpos_base_size = m_chunksize;
+#define VMANIP_FLAG_DUNGEON VOXELFLAG_CHECKED1
 
-       /*v2s16 sectorpos_bigbase = chunk_to_sector(chunkpos - v2s16(1,1));
-       s16 sectorpos_bigbase_size = m_chunksize * 3;*/
-       v2s16 sectorpos_bigbase =
-                       sectorpos_base - v2s16(1,1) * max_spread_amount_sectors;
-       s16 sectorpos_bigbase_size =
-                       sectorpos_base_size + 2 * max_spread_amount_sectors;
+/*
+       This is the main map generation method
+*/
 
+void makeChunk(ChunkMakeData *data)
+{
+       if(data->no_op)
+               return;
+       
+       s16 y_nodes_min = data->y_blocks_min * MAP_BLOCKSIZE;
+       s16 y_nodes_max = data->y_blocks_max * MAP_BLOCKSIZE + MAP_BLOCKSIZE - 1;
+       s16 h_blocks = data->y_blocks_max - data->y_blocks_min + 1;
+       u32 relative_volume = (u32)data->sectorpos_base_size*MAP_BLOCKSIZE
+                       *(u32)data->sectorpos_base_size*MAP_BLOCKSIZE
+                       *(u32)h_blocks*MAP_BLOCKSIZE;
        v3s16 bigarea_blocks_min(
-               sectorpos_bigbase.X,
-               y_blocks_min,
-               sectorpos_bigbase.Y
+               data->sectorpos_bigbase.X,
+               data->y_blocks_min,
+               data->sectorpos_bigbase.Y
        );
-
        v3s16 bigarea_blocks_max(
-               sectorpos_bigbase.X + sectorpos_bigbase_size - 1,
-               y_blocks_max,
-               sectorpos_bigbase.Y + sectorpos_bigbase_size - 1
+               data->sectorpos_bigbase.X + data->sectorpos_bigbase_size - 1,
+               data->y_blocks_max,
+               data->sectorpos_bigbase.Y + data->sectorpos_bigbase_size - 1
        );
-       
-       // Relative values to control amount of stuff in one chunk
-       /*u32 relative_area = (u32)sectorpos_base_size*MAP_BLOCKSIZE
-                       *(u32)sectorpos_base_size*MAP_BLOCKSIZE;*/
-       u32 relative_volume = (u32)sectorpos_base_size*MAP_BLOCKSIZE
-                       *(u32)sectorpos_base_size*MAP_BLOCKSIZE
-                       *(u32)h_blocks*MAP_BLOCKSIZE;
-               
-       /*
-               The limiting edges of the lighting update, inclusive.
-       */
-       s16 lighting_min_d = 0-max_spread_amount;
-       s16 lighting_max_d = sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-1;
-
-       /*
-               Create the whole area of this and the neighboring chunks
-       */
-       {
-               TimeTaker timer("generateChunkRaw() create area");
-               
-               for(s16 x=0; x<sectorpos_bigbase_size; x++)
-               for(s16 z=0; z<sectorpos_bigbase_size; z++)
-               {
-                       v2s16 sectorpos = sectorpos_bigbase + v2s16(x,z);
-                       ServerMapSector *sector = createSector(sectorpos);
-                       assert(sector);
-
-                       for(s16 y=y_blocks_min; y<=y_blocks_max; y++)
-                       {
-                               v3s16 blockpos(sectorpos.X, y, sectorpos.Y);
-                               MapBlock *block = createBlock(blockpos);
-
-                               // Lighting won't be calculated
-                               //block->setLightingExpired(true);
-                               // Lighting will be calculated
-                               block->setLightingExpired(false);
-
-                               /*
-                                       Block gets sunlight if this is true.
-
-                                       This should be set to true when the top side of a block
-                                       is completely exposed to the sky.
-
-                                       Actually this doesn't matter now because the
-                                       initial lighting is done here.
-                               */
-                               block->setIsUnderground(y != y_blocks_max);
-                       }
-               }
-       }
-       
-       /*
-               Now we have a big empty area.
-
-               Make a ManualMapVoxelManipulator that contains this and the
-               neighboring chunks
-       */
-
-       ManualMapVoxelManipulator vmanip(this);
-       // Add the area we just generated
-       {
-               TimeTaker timer("generateChunkRaw() initialEmerge");
-               vmanip.initialEmerge(bigarea_blocks_min, bigarea_blocks_max);
-       }
+       s16 lighting_min_d = 0-data->max_spread_amount;
+       s16 lighting_max_d = data->sectorpos_base_size*MAP_BLOCKSIZE
+                       + data->max_spread_amount-1;
 
        // Clear all flags
-       vmanip.clearFlag(0xff);
+       data->vmanip.clearFlag(0xff);
 
-       TimeTaker timer_generate("generateChunkRaw() generate");
+       TimeTaker timer_generate("makeChunk() generate");
 
        // Maximum height of the stone surface and obstacles.
-       // This is used to disable dungeon generation from going too high.
+       // This is used to disable cave generation from going too high.
        s16 stone_surface_max_y = 0;
 
        /*
                Generate general ground level to full area
        */
-       
        {
        // 22ms @cs=8
-       //TimeTaker timer1("ground level");
+       TimeTaker timer1("Generating ground level");
+
+#if 0
+       NoiseBuffer noisebuf1;
+       //NoiseBuffer noisebuf2;
+       {
+               v3f minpos_f(
+                       data->sectorpos_bigbase.X*MAP_BLOCKSIZE,
+                       y_nodes_min,
+                       data->sectorpos_bigbase.Y*MAP_BLOCKSIZE
+               );
+               v3f maxpos_f = minpos_f + v3f(
+                       data->sectorpos_bigbase_size*MAP_BLOCKSIZE,
+                       y_nodes_max-y_nodes_min,
+                       data->sectorpos_bigbase_size*MAP_BLOCKSIZE
+               );
+               v3f samplelength_f = v3f(4.0, 4.0, 4.0);
+
+               TimeTaker timer("noisebuf.create");
+               
+               noisebuf1.create(data->seed+25104, 6, 0.60, 200.0,
+                               minpos_f.X, minpos_f.Y, minpos_f.Z,
+                               maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+                               samplelength_f.X, samplelength_f.Y, samplelength_f.Z);
+               /*noisebuf1.create(data->seed+25104, 3, 0.60, 25.0,
+                               minpos_f.X, minpos_f.Y, minpos_f.Z,
+                               maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+                               samplelength_f.X, samplelength_f.Y, samplelength_f.Z);
+               noisebuf2.create(data->seed+25105, 4, 0.50, 200.0,
+                               minpos_f.X, minpos_f.Y, minpos_f.Z,
+                               maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+                               samplelength_f.X, samplelength_f.Y, samplelength_f.Z);*/
+       }
+
+       for(s16 x=0; x<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; x++)
+       for(s16 z=0; z<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; z++)
+       {
+               // Node position
+               v2s16 p2d = data->sectorpos_bigbase*MAP_BLOCKSIZE + v2s16(x,z);
+               
+               // Ground height at this point
+               float surface_y_f = 0.0;
+
+               // Use perlin noise for ground height
+               surface_y_f = base_rock_level_2d(data->seed, p2d);
+               //surface_y_f = base_rock_level_2d(data->seed, p2d);
+               
+               // Convert to integer
+               s16 surface_y = (s16)surface_y_f;
+               
+               // Log it
+               if(surface_y > stone_surface_max_y)
+                       stone_surface_max_y = surface_y;
+
+               /*
+                       Fill ground with stone
+               */
+               {
+                       // Use fast index incrementing
+                       v3s16 em = data->vmanip.m_area.getExtent();
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_nodes_min, p2d.Y));
+                       for(s16 y=y_nodes_min; y<=y_nodes_max; y++)
+                       {
+                               // Skip if already generated.
+                               // This is done here because there might be a cave at
+                               // any point in ground, which could look like it
+                               // wasn't generated.
+                               if(data->vmanip.m_data[i].d != CONTENT_AIR)
+                                       break;
 
-       for(s16 x=0; x<sectorpos_bigbase_size*MAP_BLOCKSIZE; x++)
-       for(s16 z=0; z<sectorpos_bigbase_size*MAP_BLOCKSIZE; z++)
+                               /*s16 noiseval = 50.0 * noise3d_perlin(
+                                               0.5+(float)p2d.X/100.0,
+                                               0.5+(float)y/100.0,
+                                               0.5+(float)p2d.Y/100.0,
+                                               data->seed+123, 5, 0.5);*/
+                               double noiseval = 64.0 * noisebuf1.get(p2d.X, y, p2d.Y);
+                               /*double noiseval = 30.0 * noisebuf1.get(p2d.X, y, p2d.Y);
+                               noiseval *= MYMAX(0, -0.2 + noisebuf2.get(p2d.X, y, p2d.Y));*/
+                               
+                               //if(y < surface_y + noiseval)
+                               if(noiseval > 0)
+                               //if(noiseval > y)
+                                       data->vmanip.m_data[i].d = CONTENT_STONE;
+
+                               data->vmanip.m_area.add_y(em, i, 1);
+                       }
+               }
+       }
+#endif
+       
+#if 1
+       for(s16 x=0; x<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; x++)
+       for(s16 z=0; z<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; z++)
        {
                // Node position
-               v2s16 p2d = sectorpos_bigbase*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_bigbase*MAP_BLOCKSIZE + v2s16(x,z);
                
                /*
                        Skip of already generated
                */
-               {
+               /*{
                        v3s16 p(p2d.X, y_nodes_min, p2d.Y);
-                       if(vmanip.m_data[vmanip.m_area.index(p)].d != CONTENT_AIR)
+                       if(data->vmanip.m_data[data->vmanip.m_area.index(p)].d != CONTENT_AIR)
                                continue;
-               }
+               }*/
 
                // Ground height at this point
                float surface_y_f = 0.0;
 
                // Use perlin noise for ground height
-               surface_y_f = base_rock_level_2d(m_seed, p2d);
+               surface_y_f = base_rock_level_2d(data->seed, p2d);
                
                /*// Experimental stuff
                {
-                       float a = highlands_level_2d(m_seed, p2d);
+                       float a = highlands_level_2d(data->seed, p2d);
                        if(a > surface_y_f)
                                surface_y_f = a;
                }*/
@@ -2225,16 +2371,24 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                */
                {
                        // Use fast index incrementing
-                       v3s16 em = vmanip.m_area.getExtent();
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_nodes_min, p2d.Y));
+                       v3s16 em = data->vmanip.m_area.getExtent();
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_nodes_min, p2d.Y));
                        for(s16 y=y_nodes_min; y<surface_y && y<=y_nodes_max; y++)
                        {
-                               vmanip.m_data[i].d = CONTENT_STONE;
+                               // Skip if already generated.
+                               // This is done here because there might be a cave at
+                               // any point in ground, which could look like it
+                               // wasn't generated.
+                               if(data->vmanip.m_data[i].d != CONTENT_AIR)
+                                       break;
 
-                               vmanip.m_area.add_y(em, i, 1);
+                               data->vmanip.m_data[i].d = CONTENT_STONE;
+
+                               data->vmanip.m_area.add_y(em, i, 1);
                        }
                }
        }
+#endif
        
        }//timer1
 
@@ -2242,167 +2396,49 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                Randomize some parameters
        */
        
-       s32 stone_obstacle_count = 0;
+       //s32 stone_obstacle_count = 0;
        /*s32 stone_obstacle_count =
-                       rangelim((1.0+noise2d(m_seed+897,
-                       sectorpos_base.X, sectorpos_base.Y))/2.0 * 30, 0, 100000);*/
+                       rangelim((1.0+noise2d(data->seed+897,
+                       data->sectorpos_base.X, data->sectorpos_base.Y))/2.0 * 30, 0, 100000);*/
        
-       s16 stone_obstacle_max_height = 0;
+       //s16 stone_obstacle_max_height = 0;
        /*s16 stone_obstacle_max_height =
-                       rangelim((1.0+noise2d(m_seed+5902,
-                       sectorpos_base.X, sectorpos_base.Y))/2.0 * 30, 0, 100000);*/
+                       rangelim((1.0+noise2d(data->seed+5902,
+                       data->sectorpos_base.X, data->sectorpos_base.Y))/2.0 * 30, 0, 100000);*/
 
        /*
                Loop this part, it will make stuff look older and newer nicely
        */
-       //for(u32 i_age=0; i_age<1; i_age++)
-       for(u32 i_age=0; i_age<2; i_age++)
+       const u32 age_loops = 2;
+       for(u32 i_age=0; i_age<age_loops; i_age++)
        { // Aging loop
+       /******************************
+               BEGINNING OF AGING LOOP
+       ******************************/
 
-       {
-       // 8ms @cs=8
-       //TimeTaker timer1("stone obstacles");
-
-       /*
-               Add some random stone obstacles
-       */
-       
-       for(s32 ri=0; ri<stone_obstacle_count; ri++)
-       {
-               // Randomize max height so usually stuff will be quite low
-               s16 maxheight_randomized = myrand_range(0, stone_obstacle_max_height);
-
-               //s16 stone_obstacle_max_size = sectorpos_base_size * MAP_BLOCKSIZE - 10;
-               s16 stone_obstacle_max_size = MAP_BLOCKSIZE*4-4;
-
-               v3s16 ob_size(
-                       myrand_range(5, stone_obstacle_max_size),
-                       myrand_range(0, maxheight_randomized),
-                       myrand_range(5, stone_obstacle_max_size)
-               );
-               
-               // Don't make stupid small rectangle bumps
-               if(ob_size.Y < 5)
-                       continue;
-               
-               v2s16 ob_place(
-                       myrand_range(1+ob_size.X/2+2,
-                                       sectorpos_base_size*MAP_BLOCKSIZE-1-1-ob_size.X/2-2),
-                       myrand_range(1+ob_size.Z/2+2,
-                                       sectorpos_base_size*MAP_BLOCKSIZE-1-1-ob_size.Z/2-2)
-               );
-               
-               // Minimum space left on top of the obstacle
-               s16 min_head_space = 12;
-               
-               for(s16 x=-ob_size.X/2; x<ob_size.X/2; x++)
-               for(s16 z=-ob_size.Z/2; z<ob_size.Z/2; z++)
-               {
-                       // Node position in 2d
-                       v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + ob_place + v2s16(x,z);
-                       
-                       // Find stone ground level
-                       // (ignore everything else than mud in already generated chunks)
-                       // and mud amount over the stone level
-                       s16 surface_y = 0;
-                       s16 mud_amount = 0;
-                       {
-                               v3s16 em = vmanip.m_area.getExtent();
-                               u32 i = vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
-                               s16 y;
-                               // Go to ground level
-                               for(y=y_nodes_max; y>=y_nodes_min; y--)
-                               {
-                                       MapNode *n = &vmanip.m_data[i];
-                                       /*if(content_walkable(n.d)
-                                                       && n.d != CONTENT_MUD
-                                                       && n.d != CONTENT_GRASS)
-                                               break;*/
-                                       if(n->d == CONTENT_STONE)
-                                               break;
-                                       
-                                       if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
-                                       {
-                                               mud_amount++;
-                                               /*
-                                                       Change to mud because otherwise we might
-                                                       be throwing mud on grass at the next
-                                                       step
-                                               */
-                                               n->d = CONTENT_MUD;
-                                       }
-                                               
-                                       vmanip.m_area.add_y(em, i, -1);
-                               }
-                               if(y >= y_nodes_min)
-                                       surface_y = y;
-                               else
-                                       surface_y = y_nodes_min;
-                       }
-
-
-                       /*
-                               Add stone on ground
-                       */
-                       {
-                               v3s16 em = vmanip.m_area.getExtent();
-                               s16 y_start = surface_y+1;
-                               u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
-                               s16 y;
-                               // Add stone
-                               s16 count = 0;
-                               for(y=y_start; y<=y_nodes_max - min_head_space; y++)
-                               {
-                                       MapNode &n = vmanip.m_data[i];
-                                       n.d = CONTENT_STONE;
-
-                                       if(y > stone_surface_max_y)
-                                               stone_surface_max_y = y;
-
-                                       count++;
-                                       if(count >= ob_size.Y)
-                                               break;
-                                               
-                                       vmanip.m_area.add_y(em, i, 1);
-                               }
-                               // Add mud
-                               count = 0;
-                               for(; y<=y_nodes_max - min_head_space; y++)
-                               {
-                                       MapNode &n = vmanip.m_data[i];
-                                       n.d = CONTENT_MUD;
-                                       count++;
-                                       if(count >= mud_amount)
-                                               break;
-                                               
-                                       vmanip.m_area.add_y(em, i, 1);
-                               }
-                       }
-
-               }
-       }
-
-       }//timer1
+#if 1
        {
        // 24ms @cs=8
-       //TimeTaker timer1("dungeons");
+       //TimeTaker timer1("caves");
 
        /*
-               Make dungeons
+               Make caves
        */
-       u32 dungeons_count = relative_volume / 600000;
+       u32 caves_count = relative_volume / 400000;
        u32 bruises_count = relative_volume * stone_surface_max_y / 40000000;
        if(stone_surface_max_y < WATER_LEVEL)
                bruises_count = 0;
-       /*u32 dungeons_count = 0;
+       /*u32 caves_count = 0;
        u32 bruises_count = 0;*/
-       for(u32 jj=0; jj<dungeons_count+bruises_count; jj++)
+       for(u32 jj=0; jj<caves_count+bruises_count; jj++)
        {
-               s16 min_tunnel_diameter = 2;
-               s16 max_tunnel_diameter = 6;
-               u16 tunnel_routepoints = 25;
+               s16 min_tunnel_diameter = 3;
+               s16 max_tunnel_diameter = 5;
+               u16 tunnel_routepoints = 20;
                
-               bool bruise_surface = (jj < bruises_count);
+               v3f main_direction(0,0,0);
+
+               bool bruise_surface = (jj > caves_count);
 
                if(bruise_surface)
                {
@@ -2411,31 +2447,34 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        /*min_tunnel_diameter = MYMAX(0, stone_surface_max_y/6);
                        max_tunnel_diameter = myrand_range(MYMAX(0, stone_surface_max_y/6), MYMAX(0, stone_surface_max_y/2));*/
                        
-                       /*s16 tunnel_rou = rangelim(25*(0.5+1.0*noise2d(m_seed+42,
-                                       sectorpos_base.X, sectorpos_base.Y)), 0, 15);*/
+                       /*s16 tunnel_rou = rangelim(25*(0.5+1.0*noise2d(data->seed+42,
+                                       data->sectorpos_base.X, data->sectorpos_base.Y)), 0, 15);*/
 
                        tunnel_routepoints = 5;
                }
+               else
+               {
+               }
 
                // Allowed route area size in nodes
                v3s16 ar(
-                       sectorpos_base_size*MAP_BLOCKSIZE,
+                       data->sectorpos_base_size*MAP_BLOCKSIZE,
                        h_blocks*MAP_BLOCKSIZE,
-                       sectorpos_base_size*MAP_BLOCKSIZE
+                       data->sectorpos_base_size*MAP_BLOCKSIZE
                );
 
                // Area starting point in nodes
                v3s16 of(
-                       sectorpos_base.X*MAP_BLOCKSIZE,
-                       y_blocks_min*MAP_BLOCKSIZE,
-                       sectorpos_base.Y*MAP_BLOCKSIZE
+                       data->sectorpos_base.X*MAP_BLOCKSIZE,
+                       data->y_blocks_min*MAP_BLOCKSIZE,
+                       data->sectorpos_base.Y*MAP_BLOCKSIZE
                );
 
                // Allow a bit more
                //(this should be more than the maximum radius of the tunnel)
                //s16 insure = 5; // Didn't work with max_d = 20
                s16 insure = 10;
-               s16 more = max_spread_amount - max_tunnel_diameter/2 - insure;
+               s16 more = data->max_spread_amount - max_tunnel_diameter/2 - insure;
                ar += v3s16(1,0,1) * more * 2;
                of -= v3s16(1,0,1) * more;
                
@@ -2443,7 +2482,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                // Allow half a diameter + 7 over stone surface
                s16 route_y_max = -of.Y + stone_surface_max_y + max_tunnel_diameter/2 + 7;
 
-               /*// If dungeons, don't go through surface too often
+               /*// If caves, don't go through surface too often
                if(bruise_surface == false)
                        route_y_max -= myrand_range(0, max_tunnel_diameter*2);*/
 
@@ -2468,16 +2507,16 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                s16 route_start_y_min = route_y_min;
                s16 route_start_y_max = route_y_max;
 
-               // Start every 2nd dungeon from surface
+               // Start every 2nd cave from surface
                bool coming_from_surface = (jj % 2 == 0 && bruise_surface == false);
 
                if(coming_from_surface)
                {
-                       route_start_y_min = -of.Y + stone_surface_max_y + 5;
+                       route_start_y_min = -of.Y + stone_surface_max_y + 10;
                }
                
                route_start_y_min = rangelim(route_start_y_min, 0, ar.Y-1);
-               route_start_y_max = rangelim(route_start_y_max, 0, ar.Y-1);
+               route_start_y_max = rangelim(route_start_y_max, route_start_y_min, ar.Y-1);
 
                // Randomize starting position
                v3f orp(
@@ -2494,6 +2533,16 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                
                for(u16 j=0; j<tunnel_routepoints; j++)
                {
+                       if(j%7==0 && bruise_surface == false)
+                       {
+                               main_direction = v3f(
+                                       ((float)(myrand()%20)-(float)10)/10,
+                                       ((float)(myrand()%20)-(float)10)/30,
+                                       ((float)(myrand()%20)-(float)10)/10
+                               );
+                               main_direction *= (float)myrand_range(1, 3);
+                       }
+
                        // Randomize size
                        s16 min_d = min_tunnel_diameter;
                        s16 max_d = max_tunnel_diameter;
@@ -2506,7 +2555,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        }
                        else
                        {
-                               maxlen = v3s16(15, myrand_range(1, 20), 15);
+                               maxlen = v3s16(rs*4, myrand_range(1, rs*3), rs*4);
                        }
 
                        v3f vec;
@@ -2527,6 +2576,8 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                        (float)(myrand()%(maxlen.Z*2))-(float)maxlen.Z
                                );
                        }
+                       
+                       vec += main_direction;
 
                        v3f rp = orp + vec;
                        if(rp.X < 0)
@@ -2573,8 +2624,8 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                                                continue;
                                                        p += of;
                                                        
-                                                       //assert(vmanip.m_area.contains(p));
-                                                       if(vmanip.m_area.contains(p) == false)
+                                                       //assert(data->vmanip.m_area.contains(p));
+                                                       if(data->vmanip.m_area.contains(p) == false)
                                                        {
                                                                dstream<<"WARNING: "<<__FUNCTION_NAME
                                                                                <<":"<<__LINE__<<": "
@@ -2585,13 +2636,13 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                                        
                                                        // Just set it to air, it will be changed to
                                                        // water afterwards
-                                                       u32 i = vmanip.m_area.index(p);
-                                                       vmanip.m_data[i] = airnode;
+                                                       u32 i = data->vmanip.m_area.index(p);
+                                                       data->vmanip.m_data[i] = airnode;
 
                                                        if(bruise_surface == false)
                                                        {
                                                                // Set tunnel flag
-                                                               vmanip.m_flags[i] |= VMANIP_FLAG_DUNGEON;
+                                                               data->vmanip.m_flags[i] |= VMANIP_FLAG_DUNGEON;
                                                        }
                                                }
                                        }
@@ -2604,6 +2655,9 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        }
 
        }//timer1
+#endif
+
+#if 1
        {
        // 46ms @cs=8
        //TimeTaker timer1("ore veins");
@@ -2617,22 +2671,22 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
 
                // Allowed route area size in nodes
                v3s16 ar(
-                       sectorpos_base_size*MAP_BLOCKSIZE,
+                       data->sectorpos_base_size*MAP_BLOCKSIZE,
                        h_blocks*MAP_BLOCKSIZE,
-                       sectorpos_base_size*MAP_BLOCKSIZE
+                       data->sectorpos_base_size*MAP_BLOCKSIZE
                );
 
                // Area starting point in nodes
                v3s16 of(
-                       sectorpos_base.X*MAP_BLOCKSIZE,
-                       y_blocks_min*MAP_BLOCKSIZE,
-                       sectorpos_base.Y*MAP_BLOCKSIZE
+                       data->sectorpos_base.X*MAP_BLOCKSIZE,
+                       data->y_blocks_min*MAP_BLOCKSIZE,
+                       data->sectorpos_base.Y*MAP_BLOCKSIZE
                );
 
                // Allow a bit more
                //(this should be more than the maximum radius of the tunnel)
                s16 insure = 3;
-               s16 more = max_spread_amount - max_vein_diameter/2 - insure;
+               s16 more = data->max_spread_amount - max_vein_diameter/2 - insure;
                ar += v3s16(1,0,1) * more * 2;
                of -= v3s16(1,0,1) * more;
                
@@ -2718,12 +2772,12 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                                                continue;
                                                        p += of;
                                                        
-                                                       assert(vmanip.m_area.contains(p));
+                                                       assert(data->vmanip.m_area.contains(p));
                                                        
                                                        // Just set it to air, it will be changed to
                                                        // water afterwards
-                                                       u32 i = vmanip.m_area.index(p);
-                                                       MapNode *n = &vmanip.m_data[i];
+                                                       u32 i = data->vmanip.m_area.index(p);
+                                                       MapNode *n = &data->vmanip.m_data[i];
                                                        if(n->d == CONTENT_STONE)
                                                                n->param = mineral;
                                                }
@@ -2737,27 +2791,28 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        }
 
        }//timer1
+#endif
+
+#if 1
        {
        // 15ms @cs=8
-       //TimeTaker timer1("add mud");
+       TimeTaker timer1("add mud");
 
        /*
                Add mud to the central chunk
        */
        
-       for(s16 x=0; x<sectorpos_base_size*MAP_BLOCKSIZE; x++)
-       for(s16 z=0; z<sectorpos_base_size*MAP_BLOCKSIZE; z++)
+       for(s16 x=0; x<data->sectorpos_base_size*MAP_BLOCKSIZE; x++)
+       for(s16 z=0; z<data->sectorpos_base_size*MAP_BLOCKSIZE; z++)
        {
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                // Randomize mud amount
-               s16 mud_add_amount = (s16)(2.5 + 2.0 * noise2d_perlin(
-                               0.5+(float)p2d.X/200, 0.5+(float)p2d.Y/200,
-                               m_seed+1, 3, 0.55));
+               s16 mud_add_amount = get_mud_add_amount(data->seed, p2d) / 2.0;
 
                // Find ground level
-               s16 surface_y = find_ground_level_clever(vmanip, p2d);
+               s16 surface_y = find_ground_level_clever(data->vmanip, p2d);
 
                /*
                        If topmost node is grass, change it to mud.
@@ -2765,10 +2820,11 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        chunk and then converted.
                */
                {
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, surface_y, p2d.Y));
-                       MapNode *n = &vmanip.m_data[i];
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, surface_y, p2d.Y));
+                       MapNode *n = &data->vmanip.m_data[i];
                        if(n->d == CONTENT_GRASS)
-                               n->d = CONTENT_MUD;
+                               *n = MapNode(CONTENT_MUD);
+                               //n->d = CONTENT_MUD;
                }
 
                /*
@@ -2776,25 +2832,29 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                */
                {
                        s16 mudcount = 0;
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        s16 y_start = surface_y+1;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
                        for(s16 y=y_start; y<=y_nodes_max; y++)
                        {
                                if(mudcount >= mud_add_amount)
                                        break;
                                        
-                               MapNode &n = vmanip.m_data[i];
-                               n.d = CONTENT_MUD;
+                               MapNode &n = data->vmanip.m_data[i];
+                               n = MapNode(CONTENT_MUD);
+                               //n.d = CONTENT_MUD;
                                mudcount++;
 
-                               vmanip.m_area.add_y(em, i, 1);
+                               data->vmanip.m_area.add_y(em, i, 1);
                        }
                }
 
        }
 
        }//timer1
+#endif
+
+#if 1
        {
        // 340ms @cs=8
        TimeTaker timer1("flow mud");
@@ -2804,8 +2864,8 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        */
 
        // Limit area by 1 because mud is flown into neighbors.
-       s16 mudflow_minpos = 0-max_spread_amount+1;
-       s16 mudflow_maxpos = sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-2;
+       s16 mudflow_minpos = 0-data->max_spread_amount+1;
+       s16 mudflow_maxpos = data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount-2;
 
        // Iterate a few times
        for(s16 k=0; k<3; k++)
@@ -2826,10 +2886,10 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                }
 
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
-               v3s16 em = vmanip.m_area.getExtent();
-               u32 i = vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
+               v3s16 em = data->vmanip.m_area.getExtent();
+               u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
                s16 y=y_nodes_max;
 
                for(;; y--)
@@ -2838,22 +2898,22 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        // Find mud
                        for(; y>=y_nodes_min; y--)
                        {
-                               n = &vmanip.m_data[i];
+                               n = &data->vmanip.m_data[i];
                                //if(content_walkable(n->d))
                                //      break;
                                if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
                                        break;
                                        
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                        }
 
                        // Stop if out of area
-                       //if(vmanip.m_area.contains(i) == false)
+                       //if(data->vmanip.m_area.contains(i) == false)
                        if(y < y_nodes_min)
                                break;
 
                        /*// If not mud, do nothing to it
-                       MapNode *n = &vmanip.m_data[i];
+                       MapNode *n = &data->vmanip.m_data[i];
                        if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS)
                                continue;*/
 
@@ -2862,11 +2922,11 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        */
                        {
                                u32 i2 = i;
-                               vmanip.m_area.add_y(em, i2, -1);
+                               data->vmanip.m_area.add_y(em, i2, -1);
                                // Cancel if out of area
-                               if(vmanip.m_area.contains(i2) == false)
+                               if(data->vmanip.m_area.contains(i2) == false)
                                        continue;
-                               MapNode *n2 = &vmanip.m_data[i2];
+                               MapNode *n2 = &data->vmanip.m_data[i2];
                                if(n2->d != CONTENT_MUD && n2->d != CONTENT_GRASS)
                                        continue;
                        }
@@ -2887,9 +2947,9 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        // Theck that upper is air or doesn't exist.
                        // Cancel dropping if upper keeps it in place
                        u32 i3 = i;
-                       vmanip.m_area.add_y(em, i3, 1);
-                       if(vmanip.m_area.contains(i3) == true
-                                       && content_walkable(vmanip.m_data[i3].d) == true)
+                       data->vmanip.m_area.add_y(em, i3, 1);
+                       if(data->vmanip.m_area.contains(i3) == true
+                                       && content_walkable(data->vmanip.m_data[i3].d) == true)
                        {
                                continue;
                        }
@@ -2901,39 +2961,39 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                v3s16 dirp = dirs4[di];
                                u32 i2 = i;
                                // Move to side
-                               vmanip.m_area.add_p(em, i2, dirp);
+                               data->vmanip.m_area.add_p(em, i2, dirp);
                                // Fail if out of area
-                               if(vmanip.m_area.contains(i2) == false)
+                               if(data->vmanip.m_area.contains(i2) == false)
                                        continue;
                                // Check that side is air
-                               MapNode *n2 = &vmanip.m_data[i2];
+                               MapNode *n2 = &data->vmanip.m_data[i2];
                                if(content_walkable(n2->d))
                                        continue;
                                // Check that under side is air
-                               vmanip.m_area.add_y(em, i2, -1);
-                               if(vmanip.m_area.contains(i2) == false)
+                               data->vmanip.m_area.add_y(em, i2, -1);
+                               if(data->vmanip.m_area.contains(i2) == false)
                                        continue;
-                               n2 = &vmanip.m_data[i2];
+                               n2 = &data->vmanip.m_data[i2];
                                if(content_walkable(n2->d))
                                        continue;
                                /*// Check that under that is air (need a drop of 2)
-                               vmanip.m_area.add_y(em, i2, -1);
-                               if(vmanip.m_area.contains(i2) == false)
+                               data->vmanip.m_area.add_y(em, i2, -1);
+                               if(data->vmanip.m_area.contains(i2) == false)
                                        continue;
-                               n2 = &vmanip.m_data[i2];
+                               n2 = &data->vmanip.m_data[i2];
                                if(content_walkable(n2->d))
                                        continue;*/
                                // Loop further down until not air
                                do{
-                                       vmanip.m_area.add_y(em, i2, -1);
+                                       data->vmanip.m_area.add_y(em, i2, -1);
                                        // Fail if out of area
-                                       if(vmanip.m_area.contains(i2) == false)
+                                       if(data->vmanip.m_area.contains(i2) == false)
                                                continue;
-                                       n2 = &vmanip.m_data[i2];
+                                       n2 = &data->vmanip.m_data[i2];
                                }while(content_walkable(n2->d) == false);
                                // Loop one up so that we're in air
-                               vmanip.m_area.add_y(em, i2, 1);
-                               n2 = &vmanip.m_data[i2];
+                               data->vmanip.m_area.add_y(em, i2, 1);
+                               n2 = &data->vmanip.m_data[i2];
 
                                // Move mud to new place
                                *n2 = *n;
@@ -2949,26 +3009,29 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        }
 
        }//timer1
+#endif
+
+#if 1
        {
        // 50ms @cs=8
-       //TimeTaker timer1("add water");
+       TimeTaker timer1("add water");
 
        /*
                Add water to the central chunk (and a bit more)
        */
        
-       for(s16 x=0-max_spread_amount;
-                       x<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount;
+       for(s16 x=0-data->max_spread_amount;
+                       x<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount;
                        x++)
-       for(s16 z=0-max_spread_amount;
-                       z<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount;
+       for(s16 z=0-data->max_spread_amount;
+                       z<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount;
                        z++)
        {
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                // Find ground level
-               //s16 surface_y = find_ground_level(vmanip, p2d);
+               //s16 surface_y = find_ground_level(data->vmanip, p2d);
 
                /*
                        If ground level is over water level, skip.
@@ -2983,42 +3046,27 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        Add water on ground
                */
                {
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        u8 light = LIGHT_MAX;
                        // Start at global water surface level
                        s16 y_start = WATER_LEVEL;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
-                       MapNode *n = &vmanip.m_data[i];
-
-                       /*// Add first one to transforming liquid queue, if water
-                       if(n->d == CONTENT_WATER || n->d == CONTENT_WATERSOURCE)
-                       {
-                               v3s16 p = v3s16(p2d.X, y_start, p2d.Y);
-                               m_transforming_liquid.push_back(p);
-                       }*/
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       MapNode *n = &data->vmanip.m_data[i];
 
                        for(s16 y=y_start; y>=y_nodes_min; y--)
                        {
-                               n = &vmanip.m_data[i];
+                               n = &data->vmanip.m_data[i];
                                
                                // Stop when there is no water and no air
                                if(n->d != CONTENT_AIR && n->d != CONTENT_WATERSOURCE
                                                && n->d != CONTENT_WATER)
                                {
-                                       /*// Add bottom one to transforming liquid queue
-                                       vmanip.m_area.add_y(em, i, 1);
-                                       n = &vmanip.m_data[i];
-                                       if(n->d == CONTENT_WATER || n->d == CONTENT_WATERSOURCE)
-                                       {
-                                               v3s16 p = v3s16(p2d.X, y, p2d.Y);
-                                               m_transforming_liquid.push_back(p);
-                                       }*/
 
                                        break;
                                }
                                
-                               // Make water only not in dungeons
-                               if(!(vmanip.m_flags[i]&VMANIP_FLAG_DUNGEON))
+                               // Make water only not in caves
+                               if(!(data->vmanip.m_flags[i]&VMANIP_FLAG_DUNGEON))
                                {
                                        n->d = CONTENT_WATERSOURCE;
                                        //n->setLight(LIGHTBANK_DAY, light);
@@ -3026,11 +3074,11 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                        // Add to transforming liquid queue (in case it'd
                                        // start flowing)
                                        v3s16 p = v3s16(p2d.X, y, p2d.Y);
-                                       m_transforming_liquid.push_back(p);
+                                       data->transforming_liquid.push_back(p);
                                }
                                
                                // Next one
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                                if(light > 0)
                                        light--;
                        }
@@ -3039,9 +3087,14 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        }
 
        }//timer1
+#endif
        
        } // Aging loop
+       /***********************
+               END OF AGING LOOP
+       ************************/
 
+#if 1
        {
        //TimeTaker timer1("convert mud to sand");
 
@@ -3052,22 +3105,22 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        //s16 mud_add_amount = myrand_range(2, 4);
        //s16 mud_add_amount = 0;
        
-       /*for(s16 x=0; x<sectorpos_base_size*MAP_BLOCKSIZE; x++)
-       for(s16 z=0; z<sectorpos_base_size*MAP_BLOCKSIZE; z++)*/
-       for(s16 x=0-max_spread_amount+1;
-                       x<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-1;
+       /*for(s16 x=0; x<data->sectorpos_base_size*MAP_BLOCKSIZE; x++)
+       for(s16 z=0; z<data->sectorpos_base_size*MAP_BLOCKSIZE; z++)*/
+       for(s16 x=0-data->max_spread_amount+1;
+                       x<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount-1;
                        x++)
-       for(s16 z=0-max_spread_amount+1;
-                       z<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-1;
+       for(s16 z=0-data->max_spread_amount+1;
+                       z<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount-1;
                        z++)
        {
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                // Determine whether to have sand here
                double sandnoise = noise2d_perlin(
                                0.5+(float)p2d.X/500, 0.5+(float)p2d.Y/500,
-                               m_seed+59420, 3, 0.50);
+                               data->seed+59420, 3, 0.50);
 
                bool have_sand = (sandnoise > -0.15);
 
@@ -3075,19 +3128,19 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        continue;
 
                // Find ground level
-               s16 surface_y = find_ground_level_clever(vmanip, p2d);
+               s16 surface_y = find_ground_level_clever(data->vmanip, p2d);
                
                if(surface_y > WATER_LEVEL + 2)
                        continue;
 
                {
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        s16 y_start = surface_y;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
                        u32 not_sand_counter = 0;
                        for(s16 y=y_start; y>=y_nodes_min; y--)
                        {
-                               MapNode *n = &vmanip.m_data[i];
+                               MapNode *n = &data->vmanip.m_data[i];
                                if(n->d == CONTENT_MUD || n->d == CONTENT_GRASS)
                                {
                                        n->d = CONTENT_SAND;
@@ -3099,13 +3152,16 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                                break;
                                }
 
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                        }
                }
 
        }
 
        }//timer1
+#endif
+
+#if 1
        {
        // 1ms @cs=8
        //TimeTaker timer1("generate trees");
@@ -3116,34 +3172,34 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        {
                // Divide area into parts
                s16 div = 8;
-               s16 sidelen = sectorpos_base_size*MAP_BLOCKSIZE / div;
+               s16 sidelen = data->sectorpos_base_size*MAP_BLOCKSIZE / div;
                double area = sidelen * sidelen;
                for(s16 x0=0; x0<div; x0++)
                for(s16 z0=0; z0<div; z0++)
                {
                        // Center position of part of division
                        v2s16 p2d_center(
-                               sectorpos_base.X*MAP_BLOCKSIZE + sidelen/2 + sidelen*x0,
-                               sectorpos_base.Y*MAP_BLOCKSIZE + sidelen/2 + sidelen*z0
+                               data->sectorpos_base.X*MAP_BLOCKSIZE + sidelen/2 + sidelen*x0,
+                               data->sectorpos_base.Y*MAP_BLOCKSIZE + sidelen/2 + sidelen*z0
                        );
                        // Minimum edge of part of division
                        v2s16 p2d_min(
-                               sectorpos_base.X*MAP_BLOCKSIZE + sidelen*x0,
-                               sectorpos_base.Y*MAP_BLOCKSIZE + sidelen*z0
+                               data->sectorpos_base.X*MAP_BLOCKSIZE + sidelen*x0,
+                               data->sectorpos_base.Y*MAP_BLOCKSIZE + sidelen*z0
                        );
                        // Maximum edge of part of division
                        v2s16 p2d_max(
-                               sectorpos_base.X*MAP_BLOCKSIZE + sidelen + sidelen*x0 - 1,
-                               sectorpos_base.Y*MAP_BLOCKSIZE + sidelen + sidelen*z0 - 1
+                               data->sectorpos_base.X*MAP_BLOCKSIZE + sidelen + sidelen*x0 - 1,
+                               data->sectorpos_base.Y*MAP_BLOCKSIZE + sidelen + sidelen*z0 - 1
                        );
                        // Amount of trees
-                       u32 tree_count = area * tree_amount_2d(m_seed, p2d_center);
+                       u32 tree_count = area * tree_amount_2d(data->seed, p2d_center);
                        // Put trees in random places on part of division
                        for(u32 i=0; i<tree_count; i++)
                        {
                                s16 x = myrand_range(p2d_min.X, p2d_max.X);
                                s16 z = myrand_range(p2d_min.Y, p2d_max.Y);
-                               s16 y = find_ground_level(vmanip, v2s16(x,z));
+                               s16 y = find_ground_level(data->vmanip, v2s16(x,z));
                                // Don't make a tree under water level
                                if(y < WATER_LEVEL)
                                        continue;
@@ -3155,36 +3211,38 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                        Trees grow only on mud and grass
                                */
                                {
-                                       u32 i = vmanip.m_area.index(v3s16(p));
-                                       MapNode *n = &vmanip.m_data[i];
+                                       u32 i = data->vmanip.m_area.index(v3s16(p));
+                                       MapNode *n = &data->vmanip.m_data[i];
                                        if(n->d != CONTENT_MUD && n->d != CONTENT_GRASS)
                                                continue;
                                }
                                p.Y++;
                                // Make a tree
-                               make_tree(vmanip, p);
+                               make_tree(data->vmanip, p);
                        }
                }
                /*u32 tree_max = relative_area / 60;
                //u32 count = myrand_range(0, tree_max);
                for(u32 i=0; i<count; i++)
                {
-                       s16 x = myrand_range(0, sectorpos_base_size*MAP_BLOCKSIZE-1);
-                       s16 z = myrand_range(0, sectorpos_base_size*MAP_BLOCKSIZE-1);
-                       x += sectorpos_base.X*MAP_BLOCKSIZE;
-                       z += sectorpos_base.Y*MAP_BLOCKSIZE;
-                       s16 y = find_ground_level(vmanip, v2s16(x,z));
+                       s16 x = myrand_range(0, data->sectorpos_base_size*MAP_BLOCKSIZE-1);
+                       s16 z = myrand_range(0, data->sectorpos_base_size*MAP_BLOCKSIZE-1);
+                       x += data->sectorpos_base.X*MAP_BLOCKSIZE;
+                       z += data->sectorpos_base.Y*MAP_BLOCKSIZE;
+                       s16 y = find_ground_level(data->vmanip, v2s16(x,z));
                        // Don't make a tree under water level
                        if(y < WATER_LEVEL)
                                continue;
                        v3s16 p(x,y+1,z);
                        // Make a tree
-                       make_tree(vmanip, p);
+                       make_tree(data->vmanip, p);
                }*/
        }
 
        }//timer1
+#endif
 
+#if 1
        {
        // 19ms @cs=8
        //TimeTaker timer1("grow grass");
@@ -3193,17 +3251,17 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                Grow grass
        */
 
-       /*for(s16 x=0-4; x<sectorpos_base_size*MAP_BLOCKSIZE+4; x++)
-       for(s16 z=0-4; z<sectorpos_base_size*MAP_BLOCKSIZE+4; z++)*/
-       for(s16 x=0-max_spread_amount;
-                       x<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount;
+       /*for(s16 x=0-4; x<data->sectorpos_base_size*MAP_BLOCKSIZE+4; x++)
+       for(s16 z=0-4; z<data->sectorpos_base_size*MAP_BLOCKSIZE+4; z++)*/
+       for(s16 x=0-data->max_spread_amount;
+                       x<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount;
                        x++)
-       for(s16 z=0-max_spread_amount;
-                       z<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount;
+       for(s16 z=0-data->max_spread_amount;
+                       z<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount;
                        z++)
        {
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                /*
                        Find the lowest surface to which enough light ends up
@@ -3213,17 +3271,17 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                */
                s16 surface_y = 0;
                {
-                       v3s16 em = vmanip.m_area.getExtent();
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
+                       v3s16 em = data->vmanip.m_area.getExtent();
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_nodes_max, p2d.Y));
                        s16 y;
                        // Go to ground level
                        for(y=y_nodes_max; y>=y_nodes_min; y--)
                        {
-                               MapNode &n = vmanip.m_data[i];
+                               MapNode &n = data->vmanip.m_data[i];
                                if(n.d != CONTENT_AIR
                                                && n.d != CONTENT_LEAVES)
                                        break;
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                        }
                        if(y >= y_nodes_min)
                                surface_y = y;
@@ -3231,13 +3289,14 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                surface_y = y_nodes_min;
                }
                
-               u32 i = vmanip.m_area.index(p2d.X, surface_y, p2d.Y);
-               MapNode *n = &vmanip.m_data[i];
+               u32 i = data->vmanip.m_area.index(p2d.X, surface_y, p2d.Y);
+               MapNode *n = &data->vmanip.m_data[i];
                if(n->d == CONTENT_MUD)
                        n->d = CONTENT_GRASS;
        }
 
        }//timer1
+#endif
 
        /*
                Initial lighting (sunlight)
@@ -3249,6 +3308,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        // 750ms @cs=8, can't optimize more
        TimeTaker timer1("initial lighting");
 
+       // NOTE: This is no used... umm... for some reason!
 #if 0
        /*
                Go through the edges and add all nodes that have light to light_sources
@@ -3283,15 +3343,15 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                }
                
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
 
                {
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        s16 y_start = y_nodes_max;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
                        for(s16 y=y_start; y>=y_nodes_min; y--)
                        {
-                               MapNode *n = &vmanip.m_data[i];
+                               MapNode *n = &data->vmanip.m_data[i];
                                if(n->getLight(LIGHTBANK_DAY) != 0)
                                {
                                        light_sources.insert(v3s16(p2d.X, y, p2d.Y), true);
@@ -3338,17 +3398,17 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                }
                
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                // Loop from top to down
                {
                        u8 light = LIGHT_SUN;
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        s16 y_start = y_nodes_max;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
                        for(s16 y=y_start; y>=y_nodes_min; y--)
                        {
-                               MapNode *n = &vmanip.m_data[i];
+                               MapNode *n = &data->vmanip.m_data[i];
                                if(light_propagates_content(n->d) == false)
                                {
                                        light = 0;
@@ -3370,19 +3430,19 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                }
                                
                                // Increment index by y
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                        }
                }
        }
 #endif
 
-       /*for(s16 x=0; x<sectorpos_base_size*MAP_BLOCKSIZE; x++)
-       for(s16 z=0; z<sectorpos_base_size*MAP_BLOCKSIZE; z++)*/
-       /*for(s16 x=0-max_spread_amount+1;
-                       x<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-1;
+       /*for(s16 x=0; x<data->sectorpos_base_size*MAP_BLOCKSIZE; x++)
+       for(s16 z=0; z<data->sectorpos_base_size*MAP_BLOCKSIZE; z++)*/
+       /*for(s16 x=0-data->max_spread_amount+1;
+                       x<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount-1;
                        x++)
-       for(s16 z=0-max_spread_amount+1;
-                       z<sectorpos_base_size*MAP_BLOCKSIZE+max_spread_amount-1;
+       for(s16 z=0-data->max_spread_amount+1;
+                       z<data->sectorpos_base_size*MAP_BLOCKSIZE+data->max_spread_amount-1;
                        z++)*/
 #if 1
        /*
@@ -3397,7 +3457,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                        z++)
        {
                // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
+               v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
                
                /*
                        Apply initial sunlight
@@ -3405,12 +3465,12 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                {
                        u8 light = LIGHT_SUN;
                        bool add_to_sources = false;
-                       v3s16 em = vmanip.m_area.getExtent();
+                       v3s16 em = data->vmanip.m_area.getExtent();
                        s16 y_start = y_nodes_max;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
+                       u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
                        for(s16 y=y_start; y>=y_nodes_min; y--)
                        {
-                               MapNode *n = &vmanip.m_data[i];
+                               MapNode *n = &data->vmanip.m_data[i];
 
                                if(light_propagates_content(n->d) == false)
                                {
@@ -3440,82 +3500,31 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                                        {
                                                v3s16 dirp = dirs4[di];
                                                u32 i2 = i;
-                                               vmanip.m_area.add_p(em, i2, dirp);
-                                               MapNode *n2 = &vmanip.m_data[i2];
+                                               data->vmanip.m_area.add_p(em, i2, dirp);
+                                               MapNode *n2 = &data->vmanip.m_data[i2];
                                                if(
                                                        n2->d != CONTENT_AIR
-                                                       && n2->d != CONTENT_WATERSOURCE
-                                                       && n2->d != CONTENT_WATER
-                                               ){
-                                                       add_to_sources = true;
-                                                       break;
-                                               }
-                                       }
-                               }
-                               
-                               n->setLight(LIGHTBANK_DAY, light);
-                               n->setLight(LIGHTBANK_NIGHT, 0);
-                               
-                               // This doesn't take much time
-                               if(light != 0 && add_to_sources)
-                               {
-                                       // Insert light source
-                                       light_sources.insert(v3s16(p2d.X, y, p2d.Y), true);
-                               }
-                               
-                               // Increment index by y
-                               vmanip.m_area.add_y(em, i, -1);
-                       }
-               }
-       }
-#endif
-
-#if 0
-       for(s16 x=lighting_min_d+1;
-                       x<=lighting_max_d-1;
-                       x++)
-       for(s16 z=lighting_min_d+1;
-                       z<=lighting_max_d-1;
-                       z++)
-       {
-               // Node position in 2d
-               v2s16 p2d = sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
-               
-               /*
-                       Apply initial sunlight
-               */
-               {
-                       u8 light = LIGHT_SUN;
-                       v3s16 em = vmanip.m_area.getExtent();
-                       s16 y_start = y_nodes_max;
-                       u32 i = vmanip.m_area.index(v3s16(p2d.X, y_start, p2d.Y));
-                       for(s16 y=y_start; y>=y_nodes_min; y--)
-                       {
-                               MapNode *n = &vmanip.m_data[i];
-
-                               if(light_propagates_content(n->d) == false)
-                               {
-                                       light = 0;
-                               }
-                               else if(light != LIGHT_SUN
-                                       || sunlight_propagates_content(n->d) == false)
-                               {
-                                       if(light > 0)
-                                               light--;
+                                                       && n2->d != CONTENT_WATERSOURCE
+                                                       && n2->d != CONTENT_WATER
+                                               ){
+                                                       add_to_sources = true;
+                                                       break;
+                                               }
+                                       }
                                }
                                
                                n->setLight(LIGHTBANK_DAY, light);
                                n->setLight(LIGHTBANK_NIGHT, 0);
                                
                                // This doesn't take much time
-                               if(light != 0)
+                               if(light != 0 && add_to_sources)
                                {
                                        // Insert light source
                                        light_sources.insert(v3s16(p2d.X, y, p2d.Y), true);
                                }
                                
                                // Increment index by y
-                               vmanip.m_area.add_y(em, i, -1);
+                               data->vmanip.m_area.add_y(em, i, -1);
                        }
                }
        }
@@ -3525,8 +3534,8 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
 
        // Spread light around
        {
-               TimeTaker timer("generateChunkRaw() spreadLight");
-               vmanip.spreadLight(LIGHTBANK_DAY, light_sources);
+               TimeTaker timer("makeChunk() spreadLight");
+               data->vmanip.spreadLight(LIGHTBANK_DAY, light_sources);
        }
        
        /*
@@ -3534,14 +3543,137 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        */
 
        timer_generate.stop();
+}
+
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+//###################################################################
+
+void ServerMap::initChunkMake(ChunkMakeData &data, v2s16 chunkpos)
+{
+       if(m_chunksize == 0)
+       {
+               data.no_op = true;
+               return;
+       }
+
+       data.no_op = false;
+
+       // The distance how far into the neighbors the generator is allowed to go.
+       s16 max_spread_amount_sectors = 2;
+       assert(max_spread_amount_sectors <= m_chunksize);
+       s16 max_spread_amount = max_spread_amount_sectors * MAP_BLOCKSIZE;
+
+       s16 y_blocks_min = -4;
+       s16 y_blocks_max = 3;
+
+       v2s16 sectorpos_base = chunk_to_sector(chunkpos);
+       s16 sectorpos_base_size = m_chunksize;
+
+       v2s16 sectorpos_bigbase =
+                       sectorpos_base - v2s16(1,1) * max_spread_amount_sectors;
+       s16 sectorpos_bigbase_size =
+                       sectorpos_base_size + 2 * max_spread_amount_sectors;
+                       
+       data.seed = m_seed;
+       data.chunkpos = chunkpos;
+       data.y_blocks_min = y_blocks_min;
+       data.y_blocks_max = y_blocks_max;
+       data.sectorpos_base = sectorpos_base;
+       data.sectorpos_base_size = sectorpos_base_size;
+       data.sectorpos_bigbase = sectorpos_bigbase;
+       data.sectorpos_bigbase_size = sectorpos_bigbase_size;
+       data.max_spread_amount = max_spread_amount;
+
+       /*
+               Create the whole area of this and the neighboring chunks
+       */
+       {
+               TimeTaker timer("initChunkMake() create area");
+               
+               for(s16 x=0; x<sectorpos_bigbase_size; x++)
+               for(s16 z=0; z<sectorpos_bigbase_size; z++)
+               {
+                       v2s16 sectorpos = sectorpos_bigbase + v2s16(x,z);
+                       ServerMapSector *sector = createSector(sectorpos);
+                       assert(sector);
+
+                       for(s16 y=y_blocks_min; y<=y_blocks_max; y++)
+                       {
+                               v3s16 blockpos(sectorpos.X, y, sectorpos.Y);
+                               MapBlock *block = createBlock(blockpos);
+
+                               // Lighting won't be calculated
+                               //block->setLightingExpired(true);
+                               // Lighting will be calculated
+                               block->setLightingExpired(false);
+
+                               /*
+                                       Block gets sunlight if this is true.
+
+                                       This should be set to true when the top side of a block
+                                       is completely exposed to the sky.
+
+                                       Actually this doesn't matter now because the
+                                       initial lighting is done here.
+                               */
+                               block->setIsUnderground(y != y_blocks_max);
+                       }
+               }
+       }
+       
+       /*
+               Now we have a big empty area.
+
+               Make a ManualMapVoxelManipulator that contains this and the
+               neighboring chunks
+       */
+       
+       v3s16 bigarea_blocks_min(
+               sectorpos_bigbase.X,
+               y_blocks_min,
+               sectorpos_bigbase.Y
+       );
+       v3s16 bigarea_blocks_max(
+               sectorpos_bigbase.X + sectorpos_bigbase_size - 1,
+               y_blocks_max,
+               sectorpos_bigbase.Y + sectorpos_bigbase_size - 1
+       );
+       
+       data.vmanip.setMap(this);
+       // Add the area
+       {
+               TimeTaker timer("initChunkMake() initialEmerge");
+               data.vmanip.initialEmerge(bigarea_blocks_min, bigarea_blocks_max);
+       }
+       
+}
 
+MapChunk* ServerMap::finishChunkMake(ChunkMakeData &data,
+               core::map<v3s16, MapBlock*> &changed_blocks)
+{
+       if(data.no_op)
+               return NULL;
+       
        /*
                Blit generated stuff to map
        */
        {
                // 70ms @cs=8
                //TimeTaker timer("generateChunkRaw() blitBackAll");
-               vmanip.blitBackAll(&changed_blocks);
+               data.vmanip.blitBackAll(&changed_blocks);
        }
 
        /*
@@ -3556,7 +3688,35 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                }
        }
 
-       
+       /*
+               Copy transforming liquid information
+       */
+       while(data.transforming_liquid.size() > 0)
+       {
+               v3s16 p = data.transforming_liquid.pop_front();
+               m_transforming_liquid.push_back(p);
+       }
+
+       /*
+               Add random objects to blocks
+       */
+       {
+               for(s16 x=0; x<data.sectorpos_base_size; x++)
+               for(s16 z=0; z<data.sectorpos_base_size; z++)
+               {
+                       v2s16 sectorpos = data.sectorpos_base + v2s16(x,z);
+                       ServerMapSector *sector = createSector(sectorpos);
+                       assert(sector);
+
+                       for(s16 y=data.y_blocks_min; y<=data.y_blocks_max; y++)
+                       {
+                               v3s16 blockpos(sectorpos.X, y, sectorpos.Y);
+                               MapBlock *block = createBlock(blockpos);
+                               addRandomObjects(block);
+                       }
+               }
+       }
+
        /*
                Create chunk metadata
        */
@@ -3564,7 +3724,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        for(s16 x=-1; x<=1; x++)
        for(s16 y=-1; y<=1; y++)
        {
-               v2s16 chunkpos0 = chunkpos + v2s16(x,y);
+               v2s16 chunkpos0 = data.chunkpos + v2s16(x,y);
                // Add chunk meta information
                MapChunk *chunk = getChunk(chunkpos0);
                if(chunk == NULL)
@@ -3580,7 +3740,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        /*
                Set central chunk non-volatile
        */
-       MapChunk *chunk = getChunk(chunkpos);
+       MapChunk *chunk = getChunk(data.chunkpos);
        assert(chunk);
        // Set non-volatile
        //chunk->setIsVolatile(false);
@@ -3590,6 +3750,49 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
                Save changed parts of map
        */
        save(true);
+       
+       return chunk;
+}
+
+#if 0
+// NOTE: Deprecated
+MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
+               core::map<v3s16, MapBlock*> &changed_blocks,
+               bool force)
+{
+       DSTACK(__FUNCTION_NAME);
+
+       /*
+               Don't generate if already fully generated
+       */
+       if(force == false)
+       {
+               MapChunk *chunk = getChunk(chunkpos);
+               if(chunk != NULL && chunk->getGenLevel() == GENERATED_FULLY)
+               {
+                       dstream<<"generateChunkRaw(): Chunk "
+                                       <<"("<<chunkpos.X<<","<<chunkpos.Y<<")"
+                                       <<" already generated"<<std::endl;
+                       return chunk;
+               }
+       }
+
+       dstream<<"generateChunkRaw(): Generating chunk "
+                       <<"("<<chunkpos.X<<","<<chunkpos.Y<<")"
+                       <<std::endl;
+       
+       TimeTaker timer("generateChunkRaw()");
+
+       ChunkMakeData data;
+       
+       // Initialize generation
+       initChunkMake(data, chunkpos);
+       
+       // Generate stuff
+       makeChunk(&data);
+
+       // Finalize generation
+       MapChunk *chunk = finishChunkMake(data, changed_blocks);
 
        /*
                Return central chunk (which was requested)
@@ -3597,6 +3800,7 @@ MapChunk* ServerMap::generateChunkRaw(v2s16 chunkpos,
        return chunk;
 }
 
+// NOTE: Deprecated
 MapChunk* ServerMap::generateChunk(v2s16 chunkpos1,
                core::map<v3s16, MapBlock*> &changed_blocks)
 {
@@ -3622,10 +3826,11 @@ MapChunk* ServerMap::generateChunk(v2s16 chunkpos1,
        MapChunk *chunk = getChunk(chunkpos1);
        return chunk;
 }
+#endif
 
 ServerMapSector * ServerMap::createSector(v2s16 p2d)
 {
-       DSTACK("%s: p2d=(%d,%d)",
+       DSTACKF("%s: p2d=(%d,%d)",
                        __FUNCTION_NAME,
                        p2d.X, p2d.Y);
        
@@ -3676,6 +3881,7 @@ ServerMapSector * ServerMap::createSector(v2s16 p2d)
        return sector;
 }
 
+#if 0
 MapSector * ServerMap::emergeSector(v2s16 p2d,
                core::map<v3s16, MapBlock*> &changed_blocks)
 {
@@ -3762,6 +3968,7 @@ MapSector * ServerMap::emergeSector(v2s16 p2d,
        */
        //return generateSector();
 }
+#endif
 
 /*
        NOTE: This is not used for main map generation, only for blocks
@@ -3775,9 +3982,17 @@ MapBlock * ServerMap::generateBlock(
                core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
 )
 {
-       DSTACK("%s: p=(%d,%d,%d)",
+       DSTACKF("%s: p=(%d,%d,%d)",
                        __FUNCTION_NAME,
                        p.X, p.Y, p.Z);
+
+       // If chunks are disabled
+       /*if(m_chunksize == 0)
+       {
+               dstream<<"ServerMap::generateBlock(): Chunks disabled -> "
+                               <<"not generating."<<std::endl;
+               return NULL;
+       }*/
        
        /*dstream<<"generateBlock(): "
                        <<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
@@ -3816,6 +4031,25 @@ MapBlock * ServerMap::generateBlock(
                block->unDummify();
        }
        
+#if 0
+       /*
+               Generate a completely empty block
+       */
+       for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
+       for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
+       {
+               for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
+               {
+                       MapNode n;
+                       n.d = CONTENT_AIR;
+                       block->setNode(v3s16(x0,y0,z0), n);
+               }
+       }
+#else
+       /*
+               Generate a proper block
+       */
+       
        u8 water_material = CONTENT_WATERSOURCE;
        
        s32 lowest_ground_y = 32767;
@@ -3828,8 +4062,13 @@ MapBlock * ServerMap::generateBlock(
 
                //s16 surface_y = 0;
 
+               s16 mud_add_amount = get_mud_add_amount(m_seed, p2d_nodes+v2s16(x0,z0));
+
                s16 surface_y = base_rock_level_2d(m_seed, p2d_nodes+v2s16(x0,z0))
-                               + AVERAGE_MUD_AMOUNT;
+                               + mud_add_amount;
+               // If chunks are disabled
+               if(m_chunksize == 0)
+                       surface_y = WATER_LEVEL + 1;
 
                if(surface_y < lowest_ground_y)
                        lowest_ground_y = surface_y;
@@ -3875,7 +4114,7 @@ MapBlock * ServerMap::generateBlock(
                                else
                                        n.d = CONTENT_AIR;
                        }
-                       // Else it's ground or dungeons (air)
+                       // Else it's ground or caves (air)
                        else
                        {
                                // If it's surface_depth under ground, it's stone
@@ -3956,7 +4195,7 @@ MapBlock * ServerMap::generateBlock(
        //dstream<<"generateBlock(): Done"<<std::endl;
 
        /*
-               Generate dungeons
+               Generate caves
        */
 
        // Initialize temporary table
@@ -4094,36 +4333,36 @@ MapBlock * ServerMap::generateBlock(
 continue_generating:
                
                /*
-                       Choose whether to actually generate dungeon
+                       Choose whether to actually generate cave
                */
-               bool do_generate_dungeons = true;
+               bool do_generate_caves = true;
                // Don't generate if no part is underground
                if(!some_part_underground)
                {
-                       do_generate_dungeons = false;
+                       do_generate_caves = false;
                }
                // Don't generate if mostly underwater surface
                /*else if(mostly_underwater_surface)
                {
-                       do_generate_dungeons = false;
+                       do_generate_caves = false;
                }*/
                // Partly underground = cave
                else if(!completely_underground)
                {
-                       do_generate_dungeons = (rand() % 100 <= (s32)(caves_amount*100));
+                       do_generate_caves = (rand() % 100 <= (s32)(caves_amount*100));
                }
-               // Found existing dungeon underground
+               // Found existing cave underground
                else if(found_existing && completely_underground)
                {
-                       do_generate_dungeons = (rand() % 100 <= (s32)(caves_amount*100));
+                       do_generate_caves = (rand() % 100 <= (s32)(caves_amount*100));
                }
-               // Underground and no dungeons found
+               // Underground and no caves found
                else
                {
-                       do_generate_dungeons = (rand() % 300 <= (s32)(caves_amount*100));
+                       do_generate_caves = (rand() % 300 <= (s32)(caves_amount*100));
                }
 
-               if(do_generate_dungeons)
+               if(do_generate_caves)
                {
                        /*
                                Generate some tunnel starting from orp and ors
@@ -4175,7 +4414,7 @@ MapBlock * ServerMap::generateBlock(
 
        // Set to true if has caves.
        // Set when some non-air is changed to air when making caves.
-       bool has_dungeons = false;
+       bool has_caves = false;
 
        /*
                Apply temporary cave data to block
@@ -4188,7 +4427,7 @@ MapBlock * ServerMap::generateBlock(
                {
                        MapNode n = block->getNode(v3s16(x0,y0,z0));
 
-                       // Create dungeons
+                       // Create caves
                        if(underground_emptiness[
                                        ued*ued*(z0*ued/MAP_BLOCKSIZE)
                                        +ued*(y0*ued/MAP_BLOCKSIZE)
@@ -4197,7 +4436,7 @@ MapBlock * ServerMap::generateBlock(
                                if(content_features(n.d).walkable/*is_ground_content(n.d)*/)
                                {
                                        // Has now caves
-                                       has_dungeons = true;
+                                       has_caves = true;
                                        // Set air to node
                                        n.d = CONTENT_AIR;
                                }
@@ -4217,7 +4456,7 @@ MapBlock * ServerMap::generateBlock(
                Force lighting update if some part of block is partly
                underground and has caves.
        */
-       /*if(some_part_underground && !completely_underground && has_dungeons)
+       /*if(some_part_underground && !completely_underground && has_caves)
        {
                //dstream<<"Half-ground caves"<<std::endl;
                lighting_invalidated_blocks[block->getPos()] = block;
@@ -4347,6 +4586,8 @@ MapBlock * ServerMap::generateBlock(
                        }
                }
        }
+
+#endif // end of proper block generation
        
        /*
                Add block to sector.
@@ -4362,11 +4603,11 @@ MapBlock * ServerMap::generateBlock(
        */
        dstream
        <<"lighting_invalidated_blocks.size()"
-       <<", has_dungeons"
+       <<", has_caves"
        <<", completely_ug"
        <<", some_part_ug"
        <<"  "<<lighting_invalidated_blocks.size()
-       <<", "<<has_dungeons
+       <<", "<<has_caves
        <<", "<<completely_underground
        <<", "<<some_part_underground
        <<std::endl;
@@ -4377,7 +4618,7 @@ MapBlock * ServerMap::generateBlock(
 
 MapBlock * ServerMap::createBlock(v3s16 p)
 {
-       DSTACK("%s: p=(%d,%d,%d)",
+       DSTACKF("%s: p=(%d,%d,%d)",
                        __FUNCTION_NAME, p.X, p.Y, p.Z);
        
        /*
@@ -4441,7 +4682,7 @@ MapBlock * ServerMap::emergeBlock(
                core::map<v3s16, MapBlock*> &lighting_invalidated_blocks
 )
 {
-       DSTACK("%s: p=(%d,%d,%d), only_from_disk=%d",
+       DSTACKF("%s: p=(%d,%d,%d), only_from_disk=%d",
                        __FUNCTION_NAME,
                        p.X, p.Y, p.Z, only_from_disk);
        
@@ -4627,13 +4868,16 @@ s16 ServerMap::findGroundLevel(v2s16 p2d)
        /*
                Plan B: Get from map generator perlin noise function
        */
-       double level = base_rock_level_2d(m_seed, p2d);
+       // This won't work if proper generation is disabled
+       if(m_chunksize == 0)
+               return WATER_LEVEL+2;
+       double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
        return (s16)level;
 }
 
-void ServerMap::createDir(std::string path)
+void ServerMap::createDirs(std::string path)
 {
-       if(fs::CreateDir(path) == false)
+       if(fs::CreateAllDirs(path) == false)
        {
                m_dout<<DTIME<<"ServerMap: Failed to create directory "
                                <<"\""<<path<<"\""<<std::endl;
@@ -4641,29 +4885,52 @@ void ServerMap::createDir(std::string path)
        }
 }
 
-std::string ServerMap::getSectorSubDir(v2s16 pos)
+std::string ServerMap::getSectorDir(v2s16 pos, int layout)
 {
        char cc[9];
-       snprintf(cc, 9, "%.4x%.4x",
-                       (unsigned int)pos.X&0xffff,
-                       (unsigned int)pos.Y&0xffff);
+       switch(layout)
+       {
+               case 1:
+                       snprintf(cc, 9, "%.4x%.4x",
+                               (unsigned int)pos.X&0xffff,
+                               (unsigned int)pos.Y&0xffff);
 
-       return std::string(cc);
-}
+                       return m_savedir + "/sectors/" + cc;
+               case 2:
+                       snprintf(cc, 9, "%.3x/%.3x",
+                               (unsigned int)pos.X&0xfff,
+                               (unsigned int)pos.Y&0xfff);
 
-std::string ServerMap::getSectorDir(v2s16 pos)
-{
-       return m_savedir + "/sectors/" + getSectorSubDir(pos);
+                       return m_savedir + "/sectors2/" + cc;
+               default:
+                       assert(false);
+       }
 }
 
 v2s16 ServerMap::getSectorPos(std::string dirname)
 {
-       if(dirname.size() != 8)
-               throw InvalidFilenameException("Invalid sector directory name");
        unsigned int x, y;
-       int r = sscanf(dirname.c_str(), "%4x%4x", &x, &y);
-       if(r != 2)
-               throw InvalidFilenameException("Invalid sector directory name");
+       int r;
+       size_t spos = dirname.rfind('/') + 1;
+       assert(spos != std::string::npos);
+       if(dirname.size() - spos == 8)
+       {
+               // Old layout
+               r = sscanf(dirname.substr(spos).c_str(), "%4x%4x", &x, &y);
+       }
+       else if(dirname.size() - spos == 3)
+       {
+               // New layout
+               r = sscanf(dirname.substr(spos-4).c_str(), "%3x/%3x", &x, &y);
+               // Sign-extend the 12 bit values up to 16 bits...
+               if(x&0x800) x|=0xF000;
+               if(y&0x800) y|=0xF000;
+       }
+       else
+       {
+               assert(false);
+       }
+       assert(r == 2);
        v2s16 pos((s16)x, (s16)y);
        return pos;
 }
@@ -4695,14 +4962,23 @@ void ServerMap::save(bool only_changed)
                dstream<<DTIME<<"ServerMap: Saving whole map, this can take time."
                                <<std::endl;
        
-       saveMapMeta();
-       saveChunkMeta();
+       if(only_changed == false || m_map_metadata_changed)
+       {
+               saveMapMeta();
+       }
+
+       // Disable saving chunk metadata if chunks are disabled
+       if(m_chunksize != 0)
+       {
+               if(only_changed == false || anyChunkModified())
+                       saveChunkMeta();
+       }
        
        u32 sector_meta_count = 0;
        u32 block_count = 0;
        
        { //sectorlock
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
        
        core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
        for(; i.atEnd() == false; i++)
@@ -4750,6 +5026,8 @@ void ServerMap::save(bool only_changed)
        }
 }
 
+#if 0
+// NOTE: Doing this is insane. Deprecated and probably broken.
 void ServerMap::loadAll()
 {
        DSTACK(__FUNCTION_NAME);
@@ -4762,7 +5040,7 @@ void ServerMap::loadAll()
 
        dstream<<DTIME<<"There are "<<list.size()<<" sectors."<<std::endl;
        
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
        
        s32 counter = 0;
        s32 printed_counter = -100000;
@@ -4810,6 +5088,7 @@ void ServerMap::loadAll()
        }
        dstream<<DTIME<<"ServerMap: Map loaded."<<std::endl;
 }
+#endif
 
 #if 0
 void ServerMap::saveMasterHeightmap()
@@ -4850,7 +5129,7 @@ void ServerMap::saveMapMeta()
                        <<"seed="<<m_seed<<", chunksize="<<m_chunksize
                        <<std::endl;
 
-       createDir(m_savedir);
+       createDirs(m_savedir);
        
        std::string fullpath = m_savedir + "/map_meta.txt";
        std::ofstream os(fullpath.c_str(), std::ios_base::binary);
@@ -4869,13 +5148,14 @@ void ServerMap::saveMapMeta()
 
        os<<"[end_of_params]\n";
        
+       m_map_metadata_changed = false;
 }
 
 void ServerMap::loadMapMeta()
 {
        DSTACK(__FUNCTION_NAME);
        
-       dstream<<"INFO: ServerMap::loadMapMeta(): Loading chunk metadata"
+       dstream<<"INFO: ServerMap::loadMapMeta(): Loading map metadata"
                        <<std::endl;
 
        std::string fullpath = m_savedir + "/map_meta.txt";
@@ -4884,7 +5164,7 @@ void ServerMap::loadMapMeta()
        {
                dstream<<"ERROR: ServerMap::loadMapMeta(): "
                                <<"could not open"<<fullpath<<std::endl;
-               throw FileNotGoodException("Cannot open chunk metadata");
+               throw FileNotGoodException("Cannot open map metadata");
        }
 
        Settings params;
@@ -4913,13 +5193,16 @@ void ServerMap::loadMapMeta()
 void ServerMap::saveChunkMeta()
 {
        DSTACK(__FUNCTION_NAME);
+
+       // This should not be called if chunks are disabled.
+       assert(m_chunksize != 0);
        
        u32 count = m_chunks.size();
 
        dstream<<"INFO: ServerMap::saveChunkMeta(): Saving metadata of "
                        <<count<<" chunks"<<std::endl;
 
-       createDir(m_savedir);
+       createDirs(m_savedir);
        
        std::string fullpath = m_savedir + "/chunk_meta";
        std::ofstream os(fullpath.c_str(), std::ios_base::binary);
@@ -4953,6 +5236,8 @@ void ServerMap::saveChunkMeta()
                // Write chunk data
                chunk->serialize(os, version);
        }
+
+       setChunksNonModified();
 }
 
 void ServerMap::loadChunkMeta()
@@ -5005,10 +5290,8 @@ void ServerMap::saveSectorMeta(ServerMapSector *sector)
        u8 version = SER_FMT_VER_HIGHEST;
        // Get destination
        v2s16 pos = sector->getPos();
-       createDir(m_savedir);
-       createDir(m_savedir+"/sectors");
        std::string dir = getSectorDir(pos);
-       createDir(dir);
+       createDirs(dir);
        
        std::string fullpath = dir + "/meta";
        std::ofstream o(fullpath.c_str(), std::ios_base::binary);
@@ -5020,20 +5303,41 @@ void ServerMap::saveSectorMeta(ServerMapSector *sector)
        sector->differs_from_disk = false;
 }
 
-MapSector* ServerMap::loadSectorMeta(std::string dirname)
+MapSector* ServerMap::loadSectorMeta(std::string sectordir, bool save_after_load)
 {
        DSTACK(__FUNCTION_NAME);
        // Get destination
-       v2s16 p2d = getSectorPos(dirname);
-       std::string dir = m_savedir + "/sectors/" + dirname;
-       
-       std::string fullpath = dir + "/meta";
+       v2s16 p2d = getSectorPos(sectordir);
+
+       ServerMapSector *sector = NULL;
+
+       std::string fullpath = sectordir + "/meta";
        std::ifstream is(fullpath.c_str(), std::ios_base::binary);
        if(is.good() == false)
-               throw FileNotGoodException("Cannot open sector metafile");
-
-       ServerMapSector *sector = ServerMapSector::deSerialize
-                       (is, this, p2d, m_sectors);
+       {
+               // If the directory exists anyway, it probably is in some old
+               // format. Just go ahead and create the sector.
+               if(fs::PathExists(sectordir))
+               {
+                       dstream<<"ServerMap::loadSectorMeta(): Sector metafile "
+                                       <<fullpath<<" doesn't exist but directory does."
+                                       <<" Continuing with a sector with no metadata."
+                                       <<std::endl;
+                       sector = new ServerMapSector(this, p2d);
+                       m_sectors.insert(p2d, sector);
+               }
+               else
+               {
+                       throw FileNotGoodException("Cannot open sector metafile");
+               }
+       }
+       else
+       {
+               sector = ServerMapSector::deSerialize
+                               (is, this, p2d, m_sectors);
+               if(save_after_load)
+                       saveSectorMeta(sector);
+       }
        
        sector->differs_from_disk = false;
 
@@ -5043,14 +5347,31 @@ MapSector* ServerMap::loadSectorMeta(std::string dirname)
 bool ServerMap::loadSectorFull(v2s16 p2d)
 {
        DSTACK(__FUNCTION_NAME);
-       std::string sectorsubdir = getSectorSubDir(p2d);
 
        MapSector *sector = NULL;
 
-       JMutexAutoLock lock(m_sector_mutex);
+       // The directory layout we're going to load from.
+       //  1 - original sectors/xxxxzzzz/
+       //  2 - new sectors2/xxx/zzz/
+       //  If we load from anything but the latest structure, we will
+       //  immediately save to the new one, and remove the old.
+       int loadlayout = 1;
+       std::string sectordir1 = getSectorDir(p2d, 1);
+       std::string sectordir;
+       if(fs::PathExists(sectordir1))
+       {
+               sectordir = sectordir1;
+       }
+       else
+       {
+               loadlayout = 2;
+               sectordir = getSectorDir(p2d, 2);
+       }
+
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
 
        try{
-               sector = loadSectorMeta(sectorsubdir);
+               sector = loadSectorMeta(sectordir, loadlayout != 2);
        }
        catch(InvalidFilenameException &e)
        {
@@ -5069,7 +5390,7 @@ bool ServerMap::loadSectorFull(v2s16 p2d)
                Load blocks
        */
        std::vector<fs::DirListNode> list2 = fs::GetDirListing
-                       (m_savedir+"/sectors/"+sectorsubdir);
+                       (sectordir);
        std::vector<fs::DirListNode>::iterator i2;
        for(i2=list2.begin(); i2!=list2.end(); i2++)
        {
@@ -5077,16 +5398,25 @@ bool ServerMap::loadSectorFull(v2s16 p2d)
                if(i2->dir)
                        continue;
                try{
-                       loadBlock(sectorsubdir, i2->name, sector);
+                       loadBlock(sectordir, i2->name, sector, loadlayout != 2);
                }
                catch(InvalidFilenameException &e)
                {
                        // This catches unknown crap in directory
                }
        }
+
+       if(loadlayout != 2)
+       {
+               dstream<<"Sector converted to new layout - deleting "<<
+                       sectordir1<<std::endl;
+               fs::RecursiveDelete(sectordir1);
+       }
+
        return true;
 }
 
+
 void ServerMap::saveBlock(MapBlock *block)
 {
        DSTACK(__FUNCTION_NAME);
@@ -5106,12 +5436,9 @@ void ServerMap::saveBlock(MapBlock *block)
        // Get destination
        v3s16 p3d = block->getPos();
        v2s16 p2d(p3d.X, p3d.Z);
-       createDir(m_savedir);
-       createDir(m_savedir+"/sectors");
        std::string dir = getSectorDir(p2d);
-       createDir(dir);
+       createDirs(dir);
        
-       // Block file is map/sectors/xxxxxxxx/xxxx
        char cc[5];
        snprintf(cc, 5, "%.4x", (unsigned int)p3d.Y&0xffff);
        std::string fullpath = dir + "/" + cc;
@@ -5135,22 +5462,29 @@ void ServerMap::saveBlock(MapBlock *block)
                block->serializeObjects(o, version);
        }
        
+       /*
+               Versions up from 15 have static objects.
+       */
+       if(version >= 15)
+       {
+               block->m_static_objects.serialize(o);
+       }
+       
        // We just wrote it to the disk
        block->resetChangedFlag();
 }
 
-void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSector *sector)
+void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSector *sector, bool save_after_load)
 {
        DSTACK(__FUNCTION_NAME);
 
+       std::string fullpath = sectordir+"/"+blockfile;
        try{
 
-               // Block file is map/sectors/xxxxxxxx/xxxx
-               std::string fullpath = m_savedir+"/sectors/"+sectordir+"/"+blockfile;
                std::ifstream is(fullpath.c_str(), std::ios_base::binary);
                if(is.good() == false)
                        throw FileNotGoodException("Cannot open block file");
-
+               
                v3s16 p3d = getBlockPos(sectordir, blockfile);
                v2s16 p2d(p3d.X, p3d.Z);
                
@@ -5192,6 +5526,14 @@ void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSecto
                        block->updateObjects(is, version, NULL, 0);
                }
 
+               /*
+                       Versions up from 15 have static objects.
+               */
+               if(version >= 15)
+               {
+                       block->m_static_objects.deSerialize(is);
+               }
+               
                if(created_new)
                        sector->insertBlock(block);
                
@@ -5200,7 +5542,7 @@ void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSecto
                */
 
                // Save old format blocks in new format
-               if(version < SER_FMT_VER_HIGHEST)
+               if(version < SER_FMT_VER_HIGHEST || save_after_load)
                {
                        saveBlock(block);
                }
@@ -5215,6 +5557,8 @@ void ServerMap::loadBlock(std::string sectordir, std::string blockfile, MapSecto
                                "(SerializationError). Ignoring. "
                                "A new one will be generated."
                                <<std::endl;
+
+               // TODO: Backup file; name is in fullpath.
        }
 }
 
@@ -5276,7 +5620,7 @@ MapSector * ClientMap::emergeSector(v2s16 p2d)
        ClientMapSector *sector = new ClientMapSector(this, p2d);
        
        {
-               JMutexAutoLock lock(m_sector_mutex);
+               //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
                m_sectors.insert(p2d, sector);
        }
        
@@ -5288,7 +5632,7 @@ void ClientMap::deSerializeSector(v2s16 p2d, std::istream &is)
        DSTACK(__FUNCTION_NAME);
        ClientMapSector *sector = NULL;
 
-       JMutexAutoLock lock(m_sector_mutex);
+       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
        
        core::map<v2s16, MapSector*>::Node *n = m_sectors.find(p2d);
 
@@ -5301,7 +5645,7 @@ void ClientMap::deSerializeSector(v2s16 p2d, std::istream &is)
        {
                sector = new ClientMapSector(this, p2d);
                {
-                       JMutexAutoLock lock(m_sector_mutex);
+                       //JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
                        m_sectors.insert(p2d, sector);
                }
        }
@@ -5335,7 +5679,7 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
        */
        int time1 = time(0);
 
-       u32 daynight_ratio = m_client->getDayNightRatio();
+       //u32 daynight_ratio = m_client->getDayNightRatio();
 
        m_camera_mutex.Lock();
        v3f camera_position = m_camera_position;
@@ -5438,7 +5782,7 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
                                continue;
                        }
                        
-                       // This is ugly
+                       // This is ugly (spherical distance limit?)
                        /*if(m_control.range_all == false &&
                                        d - 0.5*BS*MAP_BLOCKSIZE > range)
                                continue;*/
@@ -5446,6 +5790,9 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 #if 1
                        /*
                                Update expired mesh (used for day/night change)
+
+                               It doesn't work exactly like it should now with the
+                               tasked mesh update but whatever.
                        */
 
                        bool mesh_expired = false;
@@ -5482,28 +5829,12 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
                                mesh_update_count++;
 
                                // Mesh has been expired: generate new mesh
-                               block->updateMesh(daynight_ratio);
-                               //m_client->addUpdateMeshTask(block);
+                               //block->updateMesh(daynight_ratio);
+                               m_client->addUpdateMeshTask(block->getPos());
 
                                mesh_expired = false;
                        }
                        
-                       /*
-                               Don't draw an expired mesh that is far away
-                       */
-                       /*if(mesh_expired && d >= faraway)
-                       //if(mesh_expired)
-                       {
-                               // Instead, delete it
-                               JMutexAutoLock lock(block->mesh_mutex);
-                               if(block->mesh)
-                               {
-                                       block->mesh->drop();
-                                       block->mesh = NULL;
-                               }
-                               // And continue to next block
-                               continue;
-                       }*/
 #endif
                        /*
                                Draw the faces of the block
@@ -5912,7 +6243,8 @@ void MapVoxelManipulator::blitBack
 }
 
 ManualMapVoxelManipulator::ManualMapVoxelManipulator(Map *map):
-               MapVoxelManipulator(map)
+               MapVoxelManipulator(map),
+               m_create_area(false)
 {
 }