]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/map.cpp
Textureable sun and moon.
[dragonfireclient.git] / src / map.cpp
index f74011933f2d53c222cf71ade69dd25ff7584652..86ad9ecb8fa53bbf56ad17b1a29c08867f6d5f83 100644 (file)
@@ -46,6 +46,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #if USE_LEVELDB
 #include "database-leveldb.h"
 #endif
+#if USE_REDIS
+#include "database-redis.h"
+#endif
 
 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
 
@@ -75,8 +78,6 @@ Map::Map(std::ostream &dout, IGameDef *gamedef):
        m_gamedef(gamedef),
        m_sector_cache(NULL)
 {
-       /*m_sector_mutex.Init();
-       assert(m_sector_mutex.IsInitialized());*/
 }
 
 Map::~Map()
@@ -931,7 +932,8 @@ void Map::updateLighting(std::map<v3s16, MapBlock*> & a_blocks,
 /*
 */
 void Map::addNodeAndUpdate(v3s16 p, MapNode n,
-               std::map<v3s16, MapBlock*> &modified_blocks)
+               std::map<v3s16, MapBlock*> &modified_blocks,
+               bool remove_metadata)
 {
        INodeDefManager *ndef = m_gamedef->ndef();
 
@@ -1018,8 +1020,9 @@ void Map::addNodeAndUpdate(v3s16 p, MapNode n,
        /*
                Remove node metadata
        */
-
-       removeNodeMetadata(p);
+       if (remove_metadata) {
+               removeNodeMetadata(p);
+       }
 
        /*
                Set the node on the map
@@ -1097,7 +1100,6 @@ void Map::addNodeAndUpdate(v3s16 p, MapNode n,
        /*
                Add neighboring liquid nodes and the node itself if it is
                liquid (=water node was added) to transform queue.
-               note: todo: for liquid_finite enough to add only self node
        */
        v3s16 dirs[7] = {
                v3s16(0,0,0), // self
@@ -1289,7 +1291,6 @@ void Map::removeNodeAndUpdate(v3s16 p,
        /*
                Add neighboring liquid nodes and this node to transform queue.
                (it's vital for the node itself to get updated last.)
-               note: todo: for liquid_finite enough to add only self node
        */
        v3s16 dirs[7] = {
                v3s16(0,0,1), // back
@@ -1319,17 +1320,17 @@ void Map::removeNodeAndUpdate(v3s16 p,
        }
 }
 
-bool Map::addNodeWithEvent(v3s16 p, MapNode n)
+bool Map::addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata)
 {
        MapEditEvent event;
-       event.type = MEET_ADDNODE;
+       event.type = remove_metadata ? MEET_ADDNODE : MEET_SWAPNODE;
        event.p = p;
        event.n = n;
 
        bool succeeded = true;
        try{
                std::map<v3s16, MapBlock*> modified_blocks;
-               addNodeAndUpdate(p, n, modified_blocks);
+               addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
 
                // Copy modified_blocks to event
                for(std::map<v3s16, MapBlock*>::iterator
@@ -1616,7 +1617,6 @@ struct NodeNeighbor {
        NeighborType t;
        v3s16 p;
        bool l; //can liquid
-       bool i; //infinity
 };
 
 void Map::transforming_liquid_add(v3s16 p) {
@@ -1627,383 +1627,8 @@ s32 Map::transforming_liquid_size() {
         return m_transforming_liquid.size();
 }
 
-const v3s16 g_7dirs[7] =
-{
-       // +right, +top, +back
-       v3s16( 0,-1, 0), // bottom
-       v3s16( 0, 0, 0), // self
-       v3s16( 0, 0, 1), // back
-       v3s16( 0, 0,-1), // front
-       v3s16( 1, 0, 0), // right
-       v3s16(-1, 0, 0), // left
-       v3s16( 0, 1, 0)  // top
-};
-
-#define D_BOTTOM 0
-#define D_TOP 6
-#define D_SELF 1
-
-void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
-{
-       INodeDefManager *nodemgr = m_gamedef->ndef();
-
-       DSTACK(__FUNCTION_NAME);
-       //TimeTaker timer("transformLiquids()");
-
-       u32 loopcount = 0;
-       u32 initial_size = m_transforming_liquid.size();
-
-       u8 relax = g_settings->getS16("liquid_relax");
-       bool fast_flood = g_settings->getS16("liquid_fast_flood");
-       int water_level = g_settings->getS16("water_level");
-
-       // list of nodes that due to viscosity have not reached their max level height
-       UniqueQueue<v3s16> must_reflow, must_reflow_second;
-
-       // List of MapBlocks that will require a lighting update (due to lava)
-       std::map<v3s16, MapBlock*> lighting_modified_blocks;
-
-       u16 loop_max = g_settings->getU16("liquid_loop_max");
-
-       //if (m_transforming_liquid.size() > 0) errorstream << "Liquid queue size="<<m_transforming_liquid.size()<<std::endl;
-
-       while (m_transforming_liquid.size() > 0)
-       {
-               // This should be done here so that it is done when continue is used
-               if (loopcount >= initial_size || loopcount >= loop_max)
-                       break;
-               loopcount++;
-               /*
-                       Get a queued transforming liquid node
-               */
-               v3s16 p0 = m_transforming_liquid.pop_front();
-               u16 total_level = 0;
-               // surrounding flowing liquid nodes
-               NodeNeighbor neighbors[7]; 
-               // current level of every block
-               s8 liquid_levels[7] = {-1, -1, -1, -1, -1, -1, -1};
-                // target levels
-               s8 liquid_levels_want[7] = {-1, -1, -1, -1, -1, -1, -1};
-               s8 can_liquid_same_level = 0;
-               content_t liquid_kind = CONTENT_IGNORE;
-               content_t liquid_kind_flowing = CONTENT_IGNORE;
-               /*
-                       Collect information about the environment
-                */
-               const v3s16 *dirs = g_7dirs;
-               for (u16 i = 0; i < 7; i++) {
-                       NeighborType nt = NEIGHBOR_SAME_LEVEL;
-                       switch (i) {
-                               case D_TOP:
-                                       nt = NEIGHBOR_UPPER;
-                                       break;
-                               case D_BOTTOM:
-                                       nt = NEIGHBOR_LOWER;
-                                       break;
-                       }
-                       v3s16 npos = p0 + dirs[i];
-
-                       neighbors[i].n = getNodeNoEx(npos);
-                       neighbors[i].t = nt;
-                       neighbors[i].p = npos;
-                       neighbors[i].l = 0;
-                       neighbors[i].i = 0;
-                       NodeNeighbor & nb = neighbors[i];
-
-                       switch (nodemgr->get(nb.n.getContent()).liquid_type) {
-                               case LIQUID_NONE:
-                                       if (nb.n.getContent() == CONTENT_AIR) {
-                                               liquid_levels[i] = 0;
-                                               nb.l = 1;
-                                       }
-                                       break;
-                               case LIQUID_SOURCE:
-                                       // if this node is not (yet) of a liquid type,
-                                       // choose the first liquid type we encounter
-                                       if (liquid_kind_flowing == CONTENT_IGNORE)
-                                               liquid_kind_flowing = nodemgr->getId(
-                                                       nodemgr->get(nb.n).liquid_alternative_flowing);
-                                       if (liquid_kind == CONTENT_IGNORE)
-                                               liquid_kind = nb.n.getContent();
-                                       if (nb.n.getContent() == liquid_kind) {
-                                               liquid_levels[i] = nb.n.getLevel(nodemgr); //LIQUID_LEVEL_SOURCE;
-                                               nb.l = 1;
-                                               nb.i = (nb.n.param2 & LIQUID_INFINITY_MASK);
-                                       }
-                                       break;
-                               case LIQUID_FLOWING:
-                                       // if this node is not (yet) of a liquid type,
-                                       // choose the first liquid type we encounter
-                                       if (liquid_kind_flowing == CONTENT_IGNORE)
-                                               liquid_kind_flowing = nb.n.getContent();
-                                       if (liquid_kind == CONTENT_IGNORE)
-                                               liquid_kind = nodemgr->getId(
-                                                       nodemgr->get(nb.n).liquid_alternative_source);
-                                       if (nb.n.getContent() == liquid_kind_flowing) {
-                                               liquid_levels[i] = nb.n.getLevel(nodemgr); //(nb.n.param2 & LIQUID_LEVEL_MASK);
-                                               nb.l = 1;
-                                       }
-                                       break;
-                       }
-                       
-                       if (nb.l && nb.t == NEIGHBOR_SAME_LEVEL)
-                               ++can_liquid_same_level;
-                       if (liquid_levels[i] > 0)
-                               total_level += liquid_levels[i];
-
-                       /*
-                       infostream << "get node i=" <<(int)i<<" " << PP(npos) << " c="
-                       << nb.n.getContent() <<" p0="<< (int)nb.n.param0 <<" p1="
-                       << (int)nb.n.param1 <<" p2="<< (int)nb.n.param2 << " lt="
-                       << nodemgr->get(nb.n.getContent()).liquid_type
-                       //<< " lk=" << liquid_kind << " lkf=" << liquid_kind_flowing
-                       << " l="<< nb.l << " inf="<< nb.i << " nlevel=" << (int)liquid_levels[i]
-                       << " tlevel=" << (int)total_level << " cansame="
-                       << (int)can_liquid_same_level << std::endl;
-                       */
-               }
-
-               if (liquid_kind == CONTENT_IGNORE ||
-                       !neighbors[D_SELF].l ||
-                       total_level <= 0)
-                       continue;
-
-               // fill bottom block
-               if (neighbors[D_BOTTOM].l) {
-                       liquid_levels_want[D_BOTTOM] = total_level > LIQUID_LEVEL_SOURCE ?
-                               LIQUID_LEVEL_SOURCE : total_level;
-                       total_level -= liquid_levels_want[D_BOTTOM];
-               }
-
-               //relax up
-               if (relax && ((p0.Y == water_level) || (fast_flood && p0.Y <= water_level)) && liquid_levels[D_TOP] == 0 &&
-                       liquid_levels[D_BOTTOM] == LIQUID_LEVEL_SOURCE &&
-                       total_level >= LIQUID_LEVEL_SOURCE * can_liquid_same_level-
-                       (can_liquid_same_level - relax) &&
-                       can_liquid_same_level >= relax + 1) { 
-                       total_level = LIQUID_LEVEL_SOURCE * can_liquid_same_level; 
-               }
-
-               // prevent lakes in air above unloaded blocks
-               if (liquid_levels[D_TOP] == 0 && (p0.Y > water_level) && neighbors[D_BOTTOM].n.getContent() == CONTENT_IGNORE && !(loopcount % 3)) {
-                       --total_level;
-               }
-
-               // calculate self level 5 blocks
-               u8 want_level = 
-                         total_level >= LIQUID_LEVEL_SOURCE * can_liquid_same_level
-                       ? LIQUID_LEVEL_SOURCE 
-                       : total_level / can_liquid_same_level;
-               total_level -= want_level * can_liquid_same_level;
-
-               //relax down
-               if (relax && p0.Y == water_level + 1 && liquid_levels[D_TOP] == 0 &&
-                       liquid_levels[D_BOTTOM] == LIQUID_LEVEL_SOURCE && want_level == 0 &&
-                       total_level <= (can_liquid_same_level - relax) &&
-                       can_liquid_same_level >= relax + 1) {
-                       total_level = 0;
-               }
-
-               for (u16 ii = D_SELF; ii < D_TOP; ++ii) { // fill only same level
-                       if (!neighbors[ii].l)
-                               continue;
-                       liquid_levels_want[ii] = want_level;
-                       if (liquid_levels_want[ii] < LIQUID_LEVEL_SOURCE && total_level > 0) {
-                               if (loopcount % 3 || liquid_levels[ii] <= 0){
-                                       if (liquid_levels[ii] > liquid_levels_want[ii]) {
-                                               ++liquid_levels_want[ii];
-                                               --total_level;
-                                       }
-                               } else if (neighbors[ii].l > 0){
-                                               ++liquid_levels_want[ii];
-                                               --total_level;
-                               }
-                       }
-               }
-
-               for (u16 ii = 0; ii < 7; ++ii) {
-                       if (total_level < 1) break;
-                       if (liquid_levels_want[ii] >= 0 &&
-                               liquid_levels_want[ii] < LIQUID_LEVEL_SOURCE) {
-                               ++liquid_levels_want[ii];
-                               --total_level;
-                       }
-               }
-
-               // fill top block if can
-               if (neighbors[D_TOP].l) {
-                       liquid_levels_want[D_TOP] = total_level > LIQUID_LEVEL_SOURCE ?
-                               LIQUID_LEVEL_SOURCE : total_level;
-                       total_level -= liquid_levels_want[D_TOP];
-               }
-
-               for (u16 ii = 0; ii < 7; ii++) // infinity and cave flood optimization
-                       if (    neighbors[ii].i ||
-                               (liquid_levels_want[ii] >= 0 &&
-                                (fast_flood && p0.Y < water_level &&
-                                 (initial_size >= 1000
-                                  && ii != D_TOP
-                                  && want_level >= LIQUID_LEVEL_SOURCE/4
-                                  && can_liquid_same_level >= 5
-                                  && liquid_levels[D_TOP] >= LIQUID_LEVEL_SOURCE))))
-                               liquid_levels_want[ii] = LIQUID_LEVEL_SOURCE;
-
-               /*
-               if (total_level > 0) //|| flowed != volume)
-                       infostream <<" AFTER level=" << (int)total_level 
-                       //<< " flowed="<<flowed<< " volume=" << volume
-                       << " wantsame="<<(int)want_level<< " top="
-                       << (int)liquid_levels_want[D_TOP]<< " topwas="
-                       << (int)liquid_levels[D_TOP]<< " bot="
-                       << (int)liquid_levels_want[D_BOTTOM]<<std::endl;
-               */
-
-               //u8 changed = 0;
-               for (u16 i = 0; i < 7; i++) {
-                       if (liquid_levels_want[i] < 0 || !neighbors[i].l) 
-                               continue;
-                       MapNode & n0 = neighbors[i].n;
-                       p0 = neighbors[i].p;
-                       /*
-                               decide on the type (and possibly level) of the current node
-                       */
-                       content_t new_node_content;
-                       s8 new_node_level = -1;
-                       u8 viscosity = nodemgr->get(liquid_kind).liquid_viscosity;
-                       if (viscosity > 1 && liquid_levels_want[i] != liquid_levels[i]) {
-                               // amount to gain, limited by viscosity
-                               // must be at least 1 in absolute value
-                               s8 level_inc = liquid_levels_want[i] - liquid_levels[i];
-                               if (level_inc < -viscosity || level_inc > viscosity)
-                                       new_node_level = liquid_levels[i] + level_inc/viscosity;
-                               else if (level_inc < 0)
-                                       new_node_level = liquid_levels[i] - 1;
-                               else if (level_inc > 0)
-                                       new_node_level = liquid_levels[i] + 1;
-                       } else {
-                               new_node_level = liquid_levels_want[i];
-                       }
-                       
-                       if (new_node_level >= LIQUID_LEVEL_SOURCE)
-                               new_node_content = liquid_kind;
-                       else if (new_node_level > 0)
-                               new_node_content = liquid_kind_flowing;
-                       else
-                               new_node_content = CONTENT_AIR;
-                       
-                       // last level must flow down on stairs
-                       if (liquid_levels_want[i] != liquid_levels[i] &&
-                               liquid_levels[D_TOP] <= 0 && !neighbors[D_BOTTOM].l &&
-                               new_node_level >= 1 && new_node_level <= 2) {
-                               for (u16 ii = D_SELF + 1; ii < D_TOP; ++ii) { // only same level
-                                       if (neighbors[ii].l)
-                                               must_reflow_second.push_back(p0 + dirs[ii]);
-                               }
-                       }
-
-                       /*
-                               check if anything has changed.
-                               if not, just continue with the next node.
-                        */
-                       /*
-                       if (
-                                new_node_content == n0.getContent() 
-                               && (nodemgr->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
-                                (n0.getLevel(nodemgr) == (u8)new_node_level
-                                //&& ((n0.param2 & LIQUID_FLOW_DOWN_MASK) ==
-                                //LIQUID_FLOW_DOWN_MASK) == flowing_down
-                                ))
-                               &&
-                                (nodemgr->get(n0.getContent()).liquid_type != LIQUID_SOURCE ||
-                                (((n0.param2 & LIQUID_INFINITY_MASK) ==
-                                       LIQUID_INFINITY_MASK) == neighbors[i].i
-                                ))
-                          )*/
-                       if (liquid_levels[i] == new_node_level)
-                       {
-                               continue;
-                       }
-                       
-                       //++changed;
-
-                       /*
-                               update the current node
-                        */
-                       /*
-                       if (nodemgr->get(new_node_content).liquid_type == LIQUID_FLOWING) {
-                               // set level to last 3 bits, flowing down bit to 4th bit
-                               n0.param2 = (new_node_level & LIQUID_LEVEL_MASK);
-                       } else if (nodemgr->get(new_node_content).liquid_type == LIQUID_SOURCE) {
-                               //n0.param2 = ~(LIQUID_LEVEL_MASK | LIQUID_FLOW_DOWN_MASK);
-                               n0.param2 = (neighbors[i].i ? LIQUID_INFINITY_MASK : 0x00);
-                       }
-                       */
-                       /*
-                       infostream << "set node i=" <<(int)i<<" "<< PP(p0)<< " nc="
-                       <<new_node_content<< " p2="<<(int)n0.param2<< " nl="
-                       <<(int)new_node_level<<std::endl;
-                       */
-                       
-                       n0.setContent(liquid_kind_flowing);
-                       n0.setLevel(nodemgr, new_node_level);
-                       // Find out whether there is a suspect for this action
-                       std::string suspect;
-                       if(m_gamedef->rollback()){
-                               suspect = m_gamedef->rollback()->getSuspect(p0, 83, 1);
-                       }
-
-                       if(!suspect.empty()){
-                               // Blame suspect
-                               RollbackScopeActor rollback_scope(m_gamedef->rollback(), suspect, true);
-                               // Get old node for rollback
-                               RollbackNode rollback_oldnode(this, p0, m_gamedef);
-                               // Set node
-                               setNode(p0, n0);
-                               // Report
-                               RollbackNode rollback_newnode(this, p0, m_gamedef);
-                               RollbackAction action;
-                               action.setSetNode(p0, rollback_oldnode, rollback_newnode);
-                               m_gamedef->rollback()->reportAction(action);
-                       } else {
-                               // Set node
-                               setNode(p0, n0);
-                       }
-
-                       v3s16 blockpos = getNodeBlockPos(p0);
-                       MapBlock *block = getBlockNoCreateNoEx(blockpos);
-                       if(block != NULL) {
-                               modified_blocks[blockpos] = block;
-                               // If node emits light, MapBlock requires lighting update
-                               if(nodemgr->get(n0).light_source != 0)
-                                       lighting_modified_blocks[block->getPos()] = block;
-                       }
-                       must_reflow.push_back(neighbors[i].p);
-               }
-               /* //for better relax  only same level
-               if (changed)  for (u16 ii = D_SELF + 1; ii < D_TOP; ++ii) {
-                       if (!neighbors[ii].l) continue;
-                       must_reflow.push_back(p0 + dirs[ii]);
-               }*/
-       }
-       /*
-       if (loopcount)
-               infostream<<"Map::transformLiquids(): loopcount="<<loopcount
-               <<" reflow="<<must_reflow.size()
-               <<" queue="<< m_transforming_liquid.size()<<std::endl;
-       */
-       while (must_reflow.size() > 0)
-               m_transforming_liquid.push_back(must_reflow.pop_front());
-       while (must_reflow_second.size() > 0)
-               m_transforming_liquid.push_back(must_reflow_second.pop_front());
-       updateLighting(lighting_modified_blocks, modified_blocks);
-}
-
 void Map::transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks)
 {
-
-       if (g_settings->getBool("liquid_finite"))
-               return Map::transformLiquidsFinite(modified_blocks);
-
        INodeDefManager *nodemgr = m_gamedef->ndef();
 
        DSTACK(__FUNCTION_NAME);
@@ -2279,7 +1904,7 @@ void Map::transformLiquids(std::map<v3s16, MapBlock*> & modified_blocks)
        updateLighting(lighting_modified_blocks, modified_blocks);
 }
 
-NodeMetadataMap::getNodeMetadata(v3s16 p)
+NodeMetadata *Map::getNodeMetadata(v3s16 p)
 {
        v3s16 blockpos = getNodeBlockPos(p);
        v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
@@ -2289,8 +1914,7 @@ NodeMetadata* Map::getNodeMetadata(v3s16 p)
                                <<PP(blockpos)<<std::endl;
                block = emergeBlock(blockpos, false);
        }
-       if(!block)
-       {
+       if(!block){
                infostream<<"WARNING: Map::getNodeMetadata(): Block not found"
                                <<std::endl;
                return NULL;
@@ -2299,7 +1923,7 @@ NodeMetadata* Map::getNodeMetadata(v3s16 p)
        return meta;
 }
 
-void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
+bool Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
 {
        v3s16 blockpos = getNodeBlockPos(p);
        v3s16 p_rel = p - blockpos*MAP_BLOCKSIZE;
@@ -2309,13 +1933,13 @@ void Map::setNodeMetadata(v3s16 p, NodeMetadata *meta)
                                <<PP(blockpos)<<std::endl;
                block = emergeBlock(blockpos, false);
        }
-       if(!block)
-       {
+       if(!block){
                infostream<<"WARNING: Map::setNodeMetadata(): Block not found"
                                <<std::endl;
-               return;
+               return false;
        }
        block->m_node_metadata.set(p_rel, meta);
+       return true;
 }
 
 void Map::removeNodeMetadata(v3s16 p)
@@ -2342,8 +1966,7 @@ NodeTimer Map::getNodeTimer(v3s16 p)
                                <<PP(blockpos)<<std::endl;
                block = emergeBlock(blockpos, false);
        }
-       if(!block)
-       {
+       if(!block){
                infostream<<"WARNING: Map::getNodeTimer(): Block not found"
                                <<std::endl;
                return NodeTimer();
@@ -2362,8 +1985,7 @@ void Map::setNodeTimer(v3s16 p, NodeTimer t)
                                <<PP(blockpos)<<std::endl;
                block = emergeBlock(blockpos, false);
        }
-       if(!block)
-       {
+       if(!block){
                infostream<<"WARNING: Map::setNodeTimer(): Block not found"
                                <<std::endl;
                return;
@@ -2385,59 +2007,16 @@ void Map::removeNodeTimer(v3s16 p)
        block->m_node_timers.remove(p_rel);
 }
 
-s16 Map::getHeat(v3s16 p)
-{
-       MapBlock *block = getBlockNoCreateNoEx(getNodeBlockPos(p));
-       if(block != NULL) {
-               return block->heat;
-       }
-       //errorstream << "No heat for " << p.X<<"," << p.Z << std::endl;
-       return 0;
-}
-
-s16 Map::getHumidity(v3s16 p)
-{
-       MapBlock *block = getBlockNoCreateNoEx(getNodeBlockPos(p));
-       if(block != NULL) {
-               return block->humidity;
-       }
-       //errorstream << "No humidity for " << p.X<<"," << p.Z << std::endl;
-       return 0;
-}
-
 /*
        ServerMap
 */
 ServerMap::ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emerge):
        Map(dout_server, gamedef),
-       m_seed(0),
+       m_emerge(emerge),
        m_map_metadata_changed(true)
 {
        verbosestream<<__FUNCTION_NAME<<std::endl;
 
-       m_emerge = emerge;
-       m_mgparams = m_emerge->getParamsFromSettings(g_settings);
-       if (!m_mgparams)
-               m_mgparams = new MapgenV6Params();
-
-       m_seed = m_mgparams->seed;
-
-       if (g_settings->get("fixed_map_seed").empty())
-       {
-               m_seed = (((u64)(myrand() & 0xffff) << 0)
-                               | ((u64)(myrand() & 0xffff) << 16)
-                               | ((u64)(myrand() & 0xffff) << 32)
-                               | ((u64)(myrand() & 0xffff) << 48));
-               m_mgparams->seed = m_seed;
-       }
-
-       /*
-               Experimental and debug stuff
-       */
-
-       {
-       }
-
        /*
                Try to load map; if not found, create a new one.
        */
@@ -2460,6 +2039,10 @@ ServerMap::ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emer
                else if (backend == "leveldb")
                        dbase = new Database_LevelDB(this, savedir);
                #endif
+               #if USE_REDIS
+               else if (backend == "redis")
+                       dbase = new Database_Redis(this, savedir);
+               #endif
                else
                        throw BaseException("Unknown map backend");
        }
@@ -2499,7 +2082,7 @@ ServerMap::ServerMap(std::string savedir, IGameDef *gamedef, EmergeManager *emer
                                infostream<<"ServerMap: Successfully loaded map "
                                                <<"metadata from "<<savedir
                                                <<", assuming valid save directory."
-                                               <<" seed="<<m_seed<<"."
+                                               <<" seed="<< m_emerge->params.seed <<"."
                                                <<std::endl;
 
                                m_map_saving_enabled = true;
@@ -2555,7 +2138,7 @@ ServerMap::~ServerMap()
        /*
                Close database if it was opened
        */
-       delete(dbase);
+       delete dbase;
 
 #if 0
        /*
@@ -2568,8 +2151,16 @@ ServerMap::~ServerMap()
                delete chunk;
        }
 #endif
+}
 
-       delete m_mgparams;
+u64 ServerMap::getSeed()
+{
+       return m_emerge->params.seed;
+}
+
+s16 ServerMap::getWaterLevel()
+{
+       return m_emerge->params.water_level;
 }
 
 bool ServerMap::initBlockMake(BlockMakeData *data, v3s16 blockpos)
@@ -2577,7 +2168,7 @@ bool ServerMap::initBlockMake(BlockMakeData *data, v3s16 blockpos)
        bool enable_mapgen_debug_info = m_emerge->mapgen_debug_info;
        EMERGE_DBG_OUT("initBlockMake(): " PP(blockpos) " - " PP(blockpos));
 
-       s16 chunksize = m_mgparams->chunksize;
+       s16 chunksize = m_emerge->params.chunksize;
        s16 coffset = -chunksize / 2;
        v3s16 chunk_offset(coffset, coffset, coffset);
        v3s16 blockpos_div = getContainerPos(blockpos - chunk_offset, chunksize);
@@ -2593,7 +2184,7 @@ bool ServerMap::initBlockMake(BlockMakeData *data, v3s16 blockpos)
                blockpos_over_limit(blockpos_max + extra_borders))
                return false;
 
-       data->seed = m_seed;
+       data->seed = m_emerge->params.seed;
        data->blockpos_min = blockpos_min;
        data->blockpos_max = blockpos_max;
        data->blockpos_requested = blockpos;
@@ -2614,6 +2205,7 @@ bool ServerMap::initBlockMake(BlockMakeData *data, v3s16 blockpos)
                        // Sector metadata is loaded from disk if not already loaded.
                        ServerMapSector *sector = createSector(sectorpos);
                        assert(sector);
+                       (void) sector;
 
                        for(s16 y=blockpos_min.Y-extra_borders.Y;
                                        y<=blockpos_max.Y+extra_borders.Y; y++)
@@ -2828,38 +2420,6 @@ MapBlock* ServerMap::finishBlockMake(BlockMakeData *data,
                        <<","<<blockpos_requested.Y<<","
                        <<blockpos_requested.Z<<")"<<std::endl;*/
                        
-       /*
-               Update weather data in blocks
-       */
-       ServerEnvironment *senv = &((Server *)m_gamedef)->getEnv();
-       if (senv->m_use_weather) {
-               for(s16 x=blockpos_min.X-extra_borders.X;
-                       x<=blockpos_max.X+extra_borders.X; x++)
-               for(s16 z=blockpos_min.Z-extra_borders.Z;
-                       z<=blockpos_max.Z+extra_borders.Z; z++)
-               for(s16 y=blockpos_min.Y-extra_borders.Y;
-                       y<=blockpos_max.Y+extra_borders.Y; y++)
-               {
-                       v3s16 p(x, y, z);
-                       MapBlock *block = getBlockNoCreateNoEx(p);
-                       block->weather_update_time = 0;
-                       updateBlockHeat(senv, p * MAP_BLOCKSIZE, NULL);
-                       updateBlockHumidity(senv, p * MAP_BLOCKSIZE, NULL);
-               }
-       } else {
-               for(s16 x=blockpos_min.X-extra_borders.X;
-                       x<=blockpos_max.X+extra_borders.X; x++)
-               for(s16 z=blockpos_min.Z-extra_borders.Z;
-                       z<=blockpos_max.Z+extra_borders.Z; z++)
-               for(s16 y=blockpos_min.Y-extra_borders.Y;
-                       y<=blockpos_max.Y+extra_borders.Y; y++)
-               {
-                       MapBlock *block = getBlockNoCreateNoEx(v3s16(x, y, z));
-                       block->heat     = HEAT_UNDEFINED;
-                       block->humidity = HUMIDITY_UNDEFINED;
-                       block->weather_update_time = 0;
-               }
-       }
        
 #if 0
        if(enable_mapgen_debug_info)
@@ -3153,7 +2713,9 @@ MapBlock * ServerMap::emergeBlock(v3s16 p, bool create_blank)
 
                return block;
        }
-       /*if(allow_generate)
+
+#if 0
+       if(allow_generate)
        {
                std::map<v3s16, MapBlock*> modified_blocks;
                MapBlock *block = generateBlock(p, modified_blocks);
@@ -3176,11 +2738,24 @@ MapBlock * ServerMap::emergeBlock(v3s16 p, bool create_blank)
 
                        return block;
                }
-       }*/
+       }
+#endif
 
        return NULL;
 }
 
+MapBlock *ServerMap::getBlockOrEmerge(v3s16 p3d)
+{
+       MapBlock *block = getBlockNoCreateNoEx(p3d);
+       if (block == NULL)
+               m_emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, p3d, false);
+
+       return block;
+}
+
+void ServerMap::prepareBlock(MapBlock *block) {
+}
+
 s16 ServerMap::findGroundLevel(v2s16 p2d)
 {
 #if 0
@@ -3260,12 +2835,13 @@ std::string ServerMap::getSectorDir(v2s16 pos, int layout)
                        return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
                default:
                        assert(false);
+                       return "";
        }
 }
 
 v2s16 ServerMap::getSectorPos(std::string dirname)
 {
-       unsigned int x, y;
+       unsigned int x = 0, y = 0;
        int r;
        std::string component;
        fs::RemoveLastPathComponent(dirname, &component, 1);
@@ -3447,7 +3023,7 @@ void ServerMap::saveMapMeta()
 
        Settings params;
 
-       m_emerge->setParamsToSettings(&params);
+       m_emerge->saveParamsToSettings(&params);
        params.writeLines(ss);
 
        ss<<"[end_of_params]\n";
@@ -3493,28 +3069,10 @@ void ServerMap::loadMapMeta()
                params.parseConfigLine(line);
        }
        
-       MapgenParams *mgparams;
-       try {
-               mgparams = m_emerge->getParamsFromSettings(&params);
-       } catch (SettingNotFoundException &e) {
-               infostream << "Couldn't get a setting from map_meta.txt: "
-                                  << e.what() << std::endl;
-               mgparams = NULL;
-       }
-       
-       if (mgparams) {
-               if (m_mgparams)
-                       delete m_mgparams;
-               m_mgparams = mgparams;
-               m_seed = mgparams->seed;
-       } else {
-               if (params.exists("seed")) {
-                       m_seed = read_seed(params.get("seed").c_str());
-                       m_mgparams->seed = m_seed;
-               }
-       }
+       m_emerge->loadParamsFromSettings(&params);
 
-       verbosestream<<"ServerMap::loadMapMeta(): "<<"seed="<<m_seed<<std::endl;
+       verbosestream<<"ServerMap::loadMapMeta(): seed="
+               << m_emerge->params.seed<<std::endl;
 }
 
 void ServerMap::saveSectorMeta(ServerMapSector *sector)
@@ -3925,48 +3483,6 @@ void ServerMap::PrintInfo(std::ostream &out)
        out<<"ServerMap: ";
 }
 
-s16 ServerMap::updateBlockHeat(ServerEnvironment *env, v3s16 p, MapBlock *block)
-{
-       u32 gametime = env->getGameTime();
-       
-       if (block) {
-               if (gametime - block->weather_update_time < 10)
-                       return block->heat;
-       } else {
-               block = getBlockNoCreateNoEx(getNodeBlockPos(p));
-       }
-
-       f32 heat = m_emerge->biomedef->calcBlockHeat(p, m_seed,
-                       env->getTimeOfDayF(), gametime * env->getTimeOfDaySpeed());
-
-       if(block) {
-               block->heat = heat;
-               block->weather_update_time = gametime;
-       }
-       return heat;
-}
-
-s16 ServerMap::updateBlockHumidity(ServerEnvironment *env, v3s16 p, MapBlock *block)
-{
-       u32 gametime = env->getGameTime();
-       
-       if (block) {
-               if (gametime - block->weather_update_time < 10)
-                       return block->humidity;
-       } else {
-               block = getBlockNoCreateNoEx(getNodeBlockPos(p));
-       }
-
-       f32 humidity = m_emerge->biomedef->calcBlockHumidity(p, m_seed,
-                       env->getTimeOfDayF(), gametime * env->getTimeOfDaySpeed());
-                       
-       if(block) {
-               block->humidity = humidity;
-               block->weather_update_time = gametime;
-       }
-       return humidity;
-}
-
 /*
        MapVoxelManipulator
 */