]> git.lizzy.rs Git - minetest.git/blobdiff - src/mg_schematic.cpp
Biome API: Make fallback biome stone and water, disable filler
[minetest.git] / src / mg_schematic.cpp
index cb31f640c4a090eb3cf494ef8e5775277aee8dd4..a5ffb20b8faa38e56e7873a4df11a4508be7e32d 100644 (file)
@@ -18,8 +18,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include <fstream>
+#include <typeinfo>
 #include "mg_schematic.h"
+#include "gamedef.h"
 #include "mapgen.h"
+#include "emerge.h"
 #include "map.h"
 #include "mapblock.h"
 #include "log.h"
@@ -34,6 +37,28 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 SchematicManager::SchematicManager(IGameDef *gamedef) :
        ObjDefManager(gamedef, OBJDEF_SCHEMATIC)
 {
+       m_gamedef = gamedef;
+}
+
+
+void SchematicManager::clear()
+{
+       EmergeManager *emerge = m_gamedef->getEmergeManager();
+
+       // Remove all dangling references in Decorations
+       DecorationManager *decomgr = emerge->decomgr;
+       for (size_t i = 0; i != decomgr->getNumObjects(); i++) {
+               Decoration *deco = (Decoration *)decomgr->getRaw(i);
+
+               try {
+                       DecoSchematic *dschem = dynamic_cast<DecoSchematic *>(deco);
+                       if (dschem)
+                               dschem->schematic = NULL;
+               } catch (std::bad_cast) {
+               }
+       }
+
+       ObjDefManager::clear();
 }
 
 
@@ -69,9 +94,10 @@ void Schematic::resolveNodeNames()
 }
 
 
-void Schematic::blitToVManip(v3s16 p, MMVManip *vm, Rotation rot,
-       bool force_placement, INodeDefManager *ndef)
+void Schematic::blitToVManip(v3s16 p, MMVManip *vm, Rotation rot, bool force_place)
 {
+       sanity_check(m_ndef != NULL);
+
        int xstride = 1;
        int ystride = size.X;
        int zstride = size.X * size.Y;
@@ -107,8 +133,8 @@ void Schematic::blitToVManip(v3s16 p, MMVManip *vm, Rotation rot,
 
        s16 y_map = p.Y;
        for (s16 y = 0; y != sy; y++) {
-               if (slice_probs[y] != MTSCHEM_PROB_ALWAYS &&
-                       myrand_range(1, 255) > slice_probs[y])
+               if ((slice_probs[y] != MTSCHEM_PROB_ALWAYS) &&
+                       (slice_probs[y] <= myrand_range(1, MTSCHEM_PROB_ALWAYS)))
                        continue;
 
                for (s16 z = 0; z != sz; z++) {
@@ -121,24 +147,27 @@ void Schematic::blitToVManip(v3s16 p, MMVManip *vm, Rotation rot,
                                if (schemdata[i].getContent() == CONTENT_IGNORE)
                                        continue;
 
-                               if (schemdata[i].param1 == MTSCHEM_PROB_NEVER)
+                               u8 placement_prob     = schemdata[i].param1 & MTSCHEM_PROB_MASK;
+                               bool force_place_node = schemdata[i].param1 & MTSCHEM_FORCE_PLACE;
+
+                               if (placement_prob == MTSCHEM_PROB_NEVER)
                                        continue;
 
-                               if (!force_placement) {
+                               if (!force_place && !force_place_node) {
                                        content_t c = vm->m_data[vi].getContent();
                                        if (c != CONTENT_AIR && c != CONTENT_IGNORE)
                                                continue;
                                }
 
-                               if (schemdata[i].param1 != MTSCHEM_PROB_ALWAYS &&
-                                       myrand_range(1, 255) > schemdata[i].param1)
+                               if ((placement_prob != MTSCHEM_PROB_ALWAYS) &&
+                                       (placement_prob <= myrand_range(1, MTSCHEM_PROB_ALWAYS)))
                                        continue;
 
                                vm->m_data[vi] = schemdata[i];
                                vm->m_data[vi].param1 = 0;
 
                                if (rot)
-                                       vm->m_data[vi].rotateAlongYAxis(ndef, rot);
+                                       vm->m_data[vi].rotateAlongYAxis(m_ndef, rot);
                        }
                }
                y_map++;
@@ -146,10 +175,12 @@ void Schematic::blitToVManip(v3s16 p, MMVManip *vm, Rotation rot,
 }
 
 
-void Schematic::placeStructure(Map *map, v3s16 p, u32 flags, Rotation rot,
-       bool force_placement, INodeDefManager *ndef)
+void Schematic::placeStructure(Map *map, v3s16 p, u32 flags,
+       Rotation rot, bool force_place)
 {
        assert(schemdata != NULL); // Pre-condition
+       sanity_check(m_ndef != NULL);
+
        MMVManip *vm = new MMVManip(map);
 
        if (rot == ROTATE_RAND)
@@ -169,7 +200,7 @@ void Schematic::placeStructure(Map *map, v3s16 p, u32 flags, Rotation rot,
        v3s16 bp2 = getNodeBlockPos(p + s - v3s16(1,1,1));
        vm->initialEmerge(bp1, bp2);
 
-       blitToVManip(p, vm, rot, force_placement, ndef);
+       blitToVManip(p, vm, rot, force_place);
 
        std::map<v3s16, MapBlock *> lighting_modified_blocks;
        std::map<v3s16, MapBlock *> modified_blocks;
@@ -190,12 +221,14 @@ void Schematic::placeStructure(Map *map, v3s16 p, u32 flags, Rotation rot,
 }
 
 
-bool Schematic::deserializeFromMts(std::istream *is, std::vector<std::string> *names)
+bool Schematic::deserializeFromMts(std::istream *is,
+       std::vector<std::string> *names)
 {
        std::istream &ss = *is;
        content_t cignore = CONTENT_IGNORE;
        bool have_cignore = false;
 
+       //// Read signature
        u32 signature = readU32(ss);
        if (signature != MTSCHEM_FILE_SIGNATURE) {
                errorstream << "Schematic::deserializeFromMts: invalid schematic "
@@ -203,6 +236,7 @@ bool Schematic::deserializeFromMts(std::istream *is, std::vector<std::string> *n
                return false;
        }
 
+       //// Read version
        u16 version = readU16(ss);
        if (version > MTSCHEM_FILE_VER_HIGHEST_READ) {
                errorstream << "Schematic::deserializeFromMts: unsupported schematic "
@@ -210,18 +244,21 @@ bool Schematic::deserializeFromMts(std::istream *is, std::vector<std::string> *n
                return false;
        }
 
+       //// Read size
        size = readV3S16(ss);
 
+       //// Read Y-slice probability values
        delete []slice_probs;
        slice_probs = new u8[size.Y];
        for (int y = 0; y != size.Y; y++)
-               slice_probs[y] = (version >= 3) ? readU8(ss) : MTSCHEM_PROB_ALWAYS;
+               slice_probs[y] = (version >= 3) ? readU8(ss) : MTSCHEM_PROB_ALWAYS_OLD;
 
+       //// Read node names
        u16 nidmapcount = readU16(ss);
        for (int i = 0; i != nidmapcount; i++) {
                std::string name = deSerializeString(ss);
 
-               // Instances of "ignore" from ver 1 are converted to air (and instances
+               // Instances of "ignore" from v1 are converted to air (and instances
                // are fixed to have MTSCHEM_PROB_NEVER later on).
                if (name == "ignore") {
                        name = "air";
@@ -232,6 +269,7 @@ bool Schematic::deserializeFromMts(std::istream *is, std::vector<std::string> *n
                names->push_back(name);
        }
 
+       //// Read node data
        size_t nodecount = size.X * size.Y * size.Z;
 
        delete []schemdata;
@@ -240,21 +278,30 @@ bool Schematic::deserializeFromMts(std::istream *is, std::vector<std::string> *n
        MapNode::deSerializeBulk(ss, SER_FMT_VER_HIGHEST_READ, schemdata,
                nodecount, 2, 2, true);
 
-       // fix any probability values for nodes that were ignore
-       if (version == 1) {
+       // Fix probability values for nodes that were ignore; removed in v2
+       if (version < 2) {
                for (size_t i = 0; i != nodecount; i++) {
                        if (schemdata[i].param1 == 0)
-                               schemdata[i].param1 = MTSCHEM_PROB_ALWAYS;
+                               schemdata[i].param1 = MTSCHEM_PROB_ALWAYS_OLD;
                        if (have_cignore && schemdata[i].getContent() == cignore)
                                schemdata[i].param1 = MTSCHEM_PROB_NEVER;
                }
        }
 
+       // Fix probability values for probability range truncation introduced in v4
+       if (version < 4) {
+               for (s16 y = 0; y != size.Y; y++)
+                       slice_probs[y] >>= 1;
+               for (size_t i = 0; i != nodecount; i++)
+                       schemdata[i].param1 >>= 1;
+       }
+
        return true;
 }
 
 
-bool Schematic::serializeToMts(std::ostream *os)
+bool Schematic::serializeToMts(std::ostream *os,
+       const std::vector<std::string> &names)
 {
        std::ostream &ss = *os;
 
@@ -265,31 +312,31 @@ bool Schematic::serializeToMts(std::ostream *os)
        for (int y = 0; y != size.Y; y++)             // Y slice probabilities
                writeU8(ss, slice_probs[y]);
 
-       std::vector<content_t> usednodes;
-       int nodecount = size.X * size.Y * size.Z;
-       build_nnlist_and_update_ids(schemdata, nodecount, &usednodes);
-
-       u16 numids = usednodes.size();
-       writeU16(ss, numids); // name count
-       for (int i = 0; i != numids; i++)
-               ss << serializeString(getNodeName(usednodes[i])); // node names
+       writeU16(ss, names.size()); // name count
+       for (size_t i = 0; i != names.size(); i++)
+               ss << serializeString(names[i]); // node names
 
        // compressed bulk node data
        MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE,
-               schemdata, nodecount, 2, 2, true);
+               schemdata, size.X * size.Y * size.Z, 2, 2, true);
 
        return true;
 }
 
 
-bool Schematic::serializeToLua(std::ostream *os, bool use_comments)
+bool Schematic::serializeToLua(std::ostream *os,
+       const std::vector<std::string> &names, bool use_comments, u32 indent_spaces)
 {
        std::ostream &ss = *os;
 
+       std::string indent("\t");
+       if (indent_spaces > 0)
+               indent.assign(indent_spaces, ' ');
+
        //// Write header
        {
                ss << "schematic = {" << std::endl;
-               ss << "\tsize = "
+               ss << indent << "size = "
                        << "{x=" << size.X
                        << ", y=" << size.Y
                        << ", z=" << size.Z
@@ -298,41 +345,51 @@ bool Schematic::serializeToLua(std::ostream *os, bool use_comments)
 
        //// Write y-slice probabilities
        {
-               ss << "\tyslice_prob = {" << std::endl;
+               ss << indent << "yslice_prob = {" << std::endl;
 
                for (u16 y = 0; y != size.Y; y++) {
-                       ss << "\t\t{"
+                       u8 probability = slice_probs[y] & MTSCHEM_PROB_MASK;
+
+                       ss << indent << indent << "{"
                                << "ypos=" << y
-                               << ", prob=" << (u16)slice_probs[y]
+                               << ", prob=" << (u16)probability * 2
                                << "}," << std::endl;
                }
 
-               ss << "\t}," << std::endl;
+               ss << indent << "}," << std::endl;
        }
 
        //// Write node data
        {
-               ss << "\tdata = {" << std::endl;
+               ss << indent << "data = {" << std::endl;
 
                u32 i = 0;
                for (u16 z = 0; z != size.Z; z++)
                for (u16 y = 0; y != size.Y; y++) {
                        if (use_comments) {
                                ss << std::endl
-                                       << "\t\t-- z=" << z
+                                       << indent << indent
+                                       << "-- z=" << z
                                        << ", y=" << y << std::endl;
                        }
 
                        for (u16 x = 0; x != size.X; x++, i++) {
-                               ss << "\t\t{"
-                                       << "name=\"" << getNodeName(schemdata[i].getContent())
-                                       << "\", param1=" << (u16)schemdata[i].param1
-                                       << ", param2=" << (u16)schemdata[i].param2
-                                       << "}," << std::endl;
+                               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
+                                       << ", param2=" << (u16)schemdata[i].param2;
+
+                               if (force_place)
+                                       ss << ", force_place=true";
+
+                               ss << "}," << std::endl;
                        }
                }
 
-               ss << "\t}," << std::endl;
+               ss << indent << "}," << std::endl;
        }
 
        ss << "}" << std::endl;
@@ -342,8 +399,7 @@ bool Schematic::serializeToLua(std::ostream *os, bool use_comments)
 
 
 bool Schematic::loadSchematicFromFile(const std::string &filename,
-       INodeDefManager *ndef, StringMap *replace_names,
-       NodeResolveMethod resolve_method)
+       INodeDefManager *ndef, StringMap *replace_names)
 {
        std::ifstream is(filename.c_str(), std::ios_base::binary);
        if (!is.good()) {
@@ -367,16 +423,47 @@ bool Schematic::loadSchematicFromFile(const std::string &filename,
 
        m_nnlistsizes.push_back(m_nodenames.size() - origsize);
 
-       ndef->pendNodeResolve(this, resolve_method);
+       if (ndef)
+               ndef->pendNodeResolve(this);
 
        return true;
 }
 
 
-bool Schematic::saveSchematicToFile(const std::string &filename)
+bool Schematic::saveSchematicToFile(const std::string &filename,
+       INodeDefManager *ndef)
 {
+       MapNode *orig_schemdata = schemdata;
+       std::vector<std::string> ndef_nodenames;
+       std::vector<std::string> *names;
+
+       if (m_resolve_done && ndef == NULL)
+               ndef = m_ndef;
+
+       if (ndef) {
+               names = &ndef_nodenames;
+
+               u32 volume = size.X * size.Y * size.Z;
+               schemdata = new MapNode[volume];
+               for (u32 i = 0; i != volume; i++)
+                       schemdata[i] = orig_schemdata[i];
+
+               generate_nodelist_and_update_ids(schemdata, volume, names, ndef);
+       } else { // otherwise, use the names we have on hand in the list
+               names = &m_nodenames;
+       }
+
        std::ostringstream os(std::ios_base::binary);
-       serializeToMts(&os);
+       bool status = serializeToMts(&os, *names);
+
+       if (ndef) {
+               delete []schemdata;
+               schemdata = orig_schemdata;
+       }
+
+       if (!status)
+               return false;
+
        return fs::safeWriteToFile(filename, os.str());
 }
 
@@ -436,13 +523,13 @@ void Schematic::applyProbabilities(v3s16 p0,
 }
 
 
-void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
-       std::vector<content_t> *usednodes)
+void generate_nodelist_and_update_ids(MapNode *nodes, size_t nodecount,
+       std::vector<std::string> *usednodes, INodeDefManager *ndef)
 {
        std::map<content_t, content_t> nodeidmap;
        content_t numids = 0;
 
-       for (u32 i = 0; i != nodecount; i++) {
+       for (size_t i = 0; i != nodecount; i++) {
                content_t id;
                content_t c = nodes[i].getContent();
 
@@ -451,7 +538,7 @@ void build_nnlist_and_update_ids(MapNode *nodes, u32 nodecount,
                        id = numids;
                        numids++;
 
-                       usednodes->push_back(c);
+                       usednodes->push_back(ndef->get(c).name);
                        nodeidmap.insert(std::make_pair(c, id));
                } else {
                        id = it->second;