]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/mapgen/mg_schematic.cpp
Merge pull request #59 from PrairieAstronomer/readme_irrlicht_change
[dragonfireclient.git] / src / mapgen / mg_schematic.cpp
index dfd41470939b61ab545bd63d812736c4cd167a98..b9ba70302a57b66f522e8edfabf85dbbd1c9bec6 100644 (file)
@@ -76,10 +76,6 @@ void SchematicManager::clear()
 ///////////////////////////////////////////////////////////////////////////////
 
 
-Schematic::Schematic()
-= default;
-
-
 Schematic::~Schematic()
 {
        delete []schemdata;
@@ -108,13 +104,19 @@ ObjDef *Schematic::clone() const
 
 void Schematic::resolveNodeNames()
 {
+       c_nodes.clear();
        getIdsFromNrBacklog(&c_nodes, true, CONTENT_AIR);
 
        size_t bufsize = size.X * size.Y * size.Z;
        for (size_t i = 0; i != bufsize; i++) {
                content_t c_original = schemdata[i].getContent();
-               content_t c_new = c_nodes[c_original];
-               schemdata[i].setContent(c_new);
+               if (c_original >= c_nodes.size()) {
+                       errorstream << "Corrupt schematic. name=\"" << name
+                               << "\" at index " << i << std::endl;
+                       c_original = 0;
+               }
+               // Unfold condensed ID layout to content_t
+               schemdata[i].setContent(c_nodes[c_original]);
        }
 }
 
@@ -279,8 +281,7 @@ void Schematic::placeOnMap(ServerMap *map, v3s16 p, u32 flags,
 }
 
 
-bool Schematic::deserializeFromMts(std::istream *is,
-       std::vector<std::string> *names)
+bool Schematic::deserializeFromMts(std::istream *is)
 {
        std::istream &ss = *is;
        content_t cignore = CONTENT_IGNORE;
@@ -312,6 +313,8 @@ bool Schematic::deserializeFromMts(std::istream *is,
                slice_probs[y] = (version >= 3) ? readU8(ss) : MTSCHEM_PROB_ALWAYS_OLD;
 
        //// Read node names
+       NodeResolver::reset();
+
        u16 nidmapcount = readU16(ss);
        for (int i = 0; i != nidmapcount; i++) {
                std::string name = deSerializeString16(ss);
@@ -324,17 +327,22 @@ bool Schematic::deserializeFromMts(std::istream *is,
                        have_cignore = true;
                }
 
-               names->push_back(name);
+               m_nodenames.push_back(name);
        }
 
+       // Prepare for node resolver
+       m_nnlistsizes.push_back(m_nodenames.size());
+
        //// Read node data
        size_t nodecount = size.X * size.Y * size.Z;
 
        delete []schemdata;
        schemdata = new MapNode[nodecount];
 
-       MapNode::deSerializeBulk(ss, SER_FMT_VER_HIGHEST_READ, schemdata,
-               nodecount, 2, 2, true);
+       std::stringstream d_ss(std::ios_base::binary | std::ios_base::in | std::ios_base::out);
+       decompress(ss, d_ss, MTSCHEM_MAPNODE_SER_FMT_VER);
+       MapNode::deSerializeBulk(d_ss, MTSCHEM_MAPNODE_SER_FMT_VER, schemdata,
+               nodecount, 2, 2);
 
        // Fix probability values for nodes that were ignore; removed in v2
        if (version < 2) {
@@ -358,9 +366,11 @@ bool Schematic::deserializeFromMts(std::istream *is,
 }
 
 
-bool Schematic::serializeToMts(std::ostream *os,
-       const std::vector<std::string> &names) const
+bool Schematic::serializeToMts(std::ostream *os) const
 {
+       // Nodes must not be resolved (-> condensed)
+       // checking here is not possible because "schemdata" might be temporary.
+
        std::ostream &ss = *os;
 
        writeU32(ss, MTSCHEM_FILE_SIGNATURE);         // signature
@@ -370,20 +380,21 @@ bool Schematic::serializeToMts(std::ostream *os,
        for (int y = 0; y != size.Y; y++)             // Y slice probabilities
                writeU8(ss, slice_probs[y]);
 
-       writeU16(ss, names.size()); // name count
-       for (size_t i = 0; i != names.size(); i++)
-               ss << serializeString16(names[i]); // node names
+       writeU16(ss, m_nodenames.size()); // name count
+       for (size_t i = 0; i != m_nodenames.size(); i++) {
+               ss << serializeString16(m_nodenames[i]); // node names
+       }
 
        // compressed bulk node data
-       MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE,
-               schemdata, size.X * size.Y * size.Z, 2, 2, true);
+       SharedBuffer<u8> buf = MapNode::serializeBulk(MTSCHEM_MAPNODE_SER_FMT_VER,
+               schemdata, size.X * size.Y * size.Z, 2, 2);
+       compress(buf, ss, MTSCHEM_MAPNODE_SER_FMT_VER);
 
        return true;
 }
 
 
-bool Schematic::serializeToLua(std::ostream *os,
-       const std::vector<std::string> &names, bool use_comments,
+bool Schematic::serializeToLua(std::ostream *os, bool use_comments,
        u32 indent_spaces) const
 {
        std::ostream &ss = *os;
@@ -392,6 +403,9 @@ bool Schematic::serializeToLua(std::ostream *os,
        if (indent_spaces > 0)
                indent.assign(indent_spaces, ' ');
 
+       bool resolve_done = isResolveDone();
+       FATAL_ERROR_IF(resolve_done && !m_ndef, "serializeToLua: NodeDefManager is required");
+
        //// Write header
        {
                ss << "schematic = {" << std::endl;
@@ -436,9 +450,22 @@ bool Schematic::serializeToLua(std::ostream *os,
                                u8 probability   = schemdata[i].param1 & MTSCHEM_PROB_MASK;
                                bool force_place = schemdata[i].param1 & MTSCHEM_FORCE_PLACE;
 
-                               ss << indent << indent << "{"
-                                       << "name=\"" << names[schemdata[i].getContent()]
-                                       << "\", prob=" << (u16)probability * 2
+                               // After node resolving: real content_t, lookup using NodeDefManager
+                               // Prior node resolving: condensed ID, lookup using m_nodenames
+                               content_t c = schemdata[i].getContent();
+
+                               ss << indent << indent << "{" << "name=\"";
+
+                               if (!resolve_done) {
+                                       // Prior node resolving (eg. direct schematic load)
+                                       FATAL_ERROR_IF(c >= m_nodenames.size(), "Invalid node list");
+                                       ss << m_nodenames[c];
+                               } else  {
+                                       // After node resolving (eg. biome decoration)
+                                       ss << m_ndef->get(c).name;
+                               }
+
+                               ss << "\", prob=" << (u16)probability * 2
                                        << ", param2=" << (u16)schemdata[i].param2;
 
                                if (force_place)
@@ -467,25 +494,24 @@ bool Schematic::loadSchematicFromFile(const std::string &filename,
                return false;
        }
 
-       size_t origsize = m_nodenames.size();
-       if (!deserializeFromMts(&is, &m_nodenames))
-               return false;
+       if (!m_ndef)
+               m_ndef = ndef;
 
-       m_nnlistsizes.push_back(m_nodenames.size() - origsize);
+       if (!deserializeFromMts(&is))
+               return false;
 
        name = filename;
 
        if (replace_names) {
-               for (size_t i = origsize; i < m_nodenames.size(); i++) {
-                       std::string &node_name = m_nodenames[i];
+               for (std::string &node_name : m_nodenames) {
                        StringMap::iterator it = replace_names->find(node_name);
                        if (it != replace_names->end())
                                node_name = it->second;
                }
        }
 
-       if (ndef)
-               ndef->pendNodeResolve(this);
+       if (m_ndef)
+               m_ndef->pendNodeResolve(this);
 
        return true;
 }
@@ -494,33 +520,26 @@ bool Schematic::loadSchematicFromFile(const std::string &filename,
 bool Schematic::saveSchematicToFile(const std::string &filename,
        const NodeDefManager *ndef)
 {
-       MapNode *orig_schemdata = schemdata;
-       std::vector<std::string> ndef_nodenames;
-       std::vector<std::string> *names;
+       Schematic *schem = this;
 
-       if (m_resolve_done && ndef == NULL)
-               ndef = m_ndef;
+       bool needs_condense = isResolveDone();
 
-       if (ndef) {
-               names = &ndef_nodenames;
+       if (!m_ndef)
+               m_ndef = ndef;
 
-               u32 volume = size.X * size.Y * size.Z;
-               schemdata = new MapNode[volume];
-               for (u32 i = 0; i != volume; i++)
-                       schemdata[i] = orig_schemdata[i];
+       if (needs_condense) {
+               if (!m_ndef)
+                       return false;
 
-               generate_nodelist_and_update_ids(schemdata, volume, names, ndef);
-       } else { // otherwise, use the names we have on hand in the list
-               names = &m_nodenames;
+               schem = (Schematic *)this->clone();
+               schem->condenseContentIds();
        }
 
        std::ostringstream os(std::ios_base::binary);
-       bool status = serializeToMts(&os, *names);
+       bool status = schem->serializeToMts(&os);
 
-       if (ndef) {
-               delete []schemdata;
-               schemdata = orig_schemdata;
-       }
+       if (needs_condense)
+               delete schem;
 
        if (!status)
                return false;
@@ -556,6 +575,10 @@ bool Schematic::getSchematicFromMap(Map *map, v3s16 p1, v3s16 p2)
        }
 
        delete vm;
+
+       // Reset and mark as complete
+       NodeResolver::reset(true);
+
        return true;
 }
 
@@ -578,32 +601,36 @@ void Schematic::applyProbabilities(v3s16 p0,
        }
 
        for (size_t i = 0; i != splist->size(); i++) {
-               s16 y = (*splist)[i].first - p0.Y;
-               slice_probs[y] = (*splist)[i].second;
+               s16 slice = (*splist)[i].first;
+               if (slice < size.Y)
+                       slice_probs[slice] = (*splist)[i].second;
        }
 }
 
 
-void generate_nodelist_and_update_ids(MapNode *nodes, size_t nodecount,
-       std::vector<std::string> *usednodes, const NodeDefManager *ndef)
+void Schematic::condenseContentIds()
 {
        std::unordered_map<content_t, content_t> nodeidmap;
        content_t numids = 0;
 
+       // Reset node resolve fields
+       NodeResolver::reset();
+
+       size_t nodecount = size.X * size.Y * size.Z;
        for (size_t i = 0; i != nodecount; i++) {
                content_t id;
-               content_t c = nodes[i].getContent();
+               content_t c = schemdata[i].getContent();
 
-               std::unordered_map<content_t, content_t>::const_iterator it = nodeidmap.find(c);
+               auto it = nodeidmap.find(c);
                if (it == nodeidmap.end()) {
                        id = numids;
                        numids++;
 
-                       usednodes->push_back(ndef->get(c).name);
-                       nodeidmap.insert(std::make_pair(c, id));
+                       m_nodenames.push_back(m_ndef->get(c).name);
+                       nodeidmap.emplace(std::make_pair(c, id));
                } else {
                        id = it->second;
                }
-               nodes[i].setContent(id);
+               schemdata[i].setContent(id);
        }
 }