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n>; i != num_nodes; i++) { StringMap::iterator it = replace_names->find(schem->m_nodenames[i]); if (it != replace_names->end()) schem->m_nodenames[i] = it->second; } } if (ndef) ndef->pendNodeResolve(schem); return schem; } bool read_schematic_def(lua_State *L, int index, Schematic *schem, std::vector<std::string> *names) { if (!lua_istable(L, index)) return false; //// Get schematic size lua_getfield(L, index, "size"); v3s16 size = check_v3s16(L, -1); lua_pop(L, 1); schem->size = size; //// Get schematic data lua_getfield(L, index, "data"); luaL_checktype(L, -1, LUA_TTABLE); u32 numnodes = size.X * size.Y * size.Z; schem->schemdata = new MapNode[numnodes]; size_t names_base = names->size(); std::map<std::string, content_t> name_id_map; u32 i = 0; for (lua_pushnil(L); lua_next(L, -2); i++, lua_pop(L, 1)) { if (i >= numnodes) continue; //// Read name std::string name; if (!getstringfield(L, -1, "name", name)) throw LuaError("Schematic data definition with missing name field"); //// Read param1/prob u8 param1; if (!getintfield(L, -1, "param1", param1) && !getintfield(L, -1, "prob", param1)) param1 = MTSCHEM_PROB_ALWAYS_OLD; //// Read param2 u8 param2 = getintfield_default(L, -1, "param2", 0); //// Find or add new nodename-to-ID mapping std::map<std::string, content_t>::iterator it = name_id_map.find(name); content_t name_index; if (it != name_id_map.end()) { name_index = it->second; } else { name_index = names->size() - names_base; name_id_map[name] = name_index; names->push_back(name); } //// Perform probability/force_place fixup on param1 param1 >>= 1; if (getboolfield_default(L, -1, "force_place", false)) param1 |= MTSCHEM_FORCE_PLACE; //// Actually set the node in the schematic schem->schemdata[i] = MapNode(name_index, param1, param2); } if (i != numnodes) { errorstream << "read_schematic_def: incorrect number of " "nodes provided in raw schematic data (got " << i << ", expected " << numnodes << ")." << std::endl; return false; } //// Get Y-slice probability values (if present) schem->slice_probs = new u8[size.Y]; for (i = 0; i != (u32) size.Y; i++) schem->slice_probs[i] = MTSCHEM_PROB_ALWAYS; lua_getfield(L, index, "yslice_prob"); if (lua_istable(L, -1)) { for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) { u16 ypos; if (!getintfield(L, -1, "ypos", ypos) || (ypos >= size.Y) || !getintfield(L, -1, "prob", schem->slice_probs[ypos])) continue; schem->slice_probs[ypos] >>= 1; } } return true; } void read_schematic_replacements(lua_State *L, int index, StringMap *replace_names) { if (index < 0) index = lua_gettop(L) + 1 + index; lua_pushnil(L); while (lua_next(L, index)) { std::string replace_from; std::string replace_to; if (lua_istable(L, -1)) { // Old {{"x", "y"}, ...} format lua_rawgeti(L, -1, 1); replace_from = lua_tostring(L, -1); lua_pop(L, 1); lua_rawgeti(L, -1, 2); replace_to = lua_tostring(L, -1); lua_pop(L, 1); } else { // New {x = "y", ...} format replace_from = lua_tostring(L, -2); replace_to = lua_tostring(L, -1); } replace_names->insert(std::make_pair(replace_from, replace_to)); lua_pop(L, 1); } } /////////////////////////////////////////////////////////////////////////////// Biome *get_or_load_biome(lua_State *L, int index, BiomeManager *biomemgr) { if (index < 0) index = lua_gettop(L) + 1 + index; Biome *biome = (Biome *)get_objdef(L, index, biomemgr); if (biome) return biome; biome = read_biome_def(L, index, biomemgr->getNodeDef()); if (!biome) return NULL; if (biomemgr->add(biome) == OBJDEF_INVALID_HANDLE) { delete biome; return NULL; } return biome; } Biome *read_biome_def(lua_State *L, int index, INodeDefManager *ndef) { if (!lua_istable(L, index)) return NULL; BiomeType biometype = (BiomeType)getenumfield(L, index, "type", ModApiMapgen::es_BiomeTerrainType, BIOME_NORMAL); Biome *b = BiomeManager::create(biometype); b->name = getstringfield_default(L, index, "name", ""); b->depth_top = getintfield_default(L, index, "depth_top", 1); b->depth_filler = getintfield_default(L, index, "depth_filler", 2); b->depth_water_top = getintfield_default(L, index, "depth_water_top", 0); b->y_min = getintfield_default(L, index, "y_min", -31000); b->y_max = getintfield_default(L, index, "y_max", 31000); b->heat_point = getfloatfield_default(L, index, "heat_point", 0.f); b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.f); b->flags = 0; //reserved std::vector<std::string> &nn = b->m_nodenames; nn.push_back(getstringfield_default(L, index, "node_top", "")); nn.push_back(getstringfield_default(L, index, "node_filler", "")); nn.push_back(getstringfield_default(L, index, "node_stone", "")); nn.push_back(getstringfield_default(L, index, "node_water_top", "")); nn.push_back(getstringfield_default(L, index, "node_water", "")); nn.push_back(getstringfield_default(L, index, "node_river_water", "")); nn.push_back(getstringfield_default(L, index, "node_dust", "")); ndef->pendNodeResolve(b); return b; } size_t get_biome_list(lua_State *L, int index, BiomeManager *biomemgr, std::set<u8> *biome_id_list) { if (index < 0) index = lua_gettop(L) + 1 + index; if (lua_isnil(L, index)) return 0; bool is_single = true; if (lua_istable(L, index)) { lua_getfield(L, index, "name"); is_single = !lua_isnil(L, -1); lua_pop(L, 1); } if (is_single) { Biome *biome = get_or_load_biome(L, index, biomemgr); if (!biome) { errorstream << "get_biome_list: failed to get biome '" << (lua_isstring(L, index) ? lua_tostring(L, index) : "") << "'." << std::endl; return 1; } biome_id_list->insert(biome->index); return 0; } // returns number of failed resolutions size_t fail_count = 0; size_t count = 0; for (lua_pushnil(L); lua_next(L, index); lua_pop(L, 1)) { count++; Biome *biome = get_or_load_biome(L, -1, biomemgr); if (!biome) { fail_count++; errorstream << "get_biome_list: failed to get biome '" << (lua_isstring(L, -1) ? lua_tostring(L, -1) : "") << "'" << std::endl; continue; } biome_id_list->insert(biome->index); } return fail_count; } /////////////////////////////////////////////////////////////////////////////// // get_mapgen_object(objectname) // returns the requested object used during map generation int ModApiMapgen::l_get_mapgen_object(lua_State *L) { const char *mgobjstr = lua_tostring(L, 1); int mgobjint; if (!string_to_enum(es_MapgenObject, mgobjint, mgobjstr ? mgobjstr : "")) return 0; enum MapgenObject mgobj = (MapgenObject)mgobjint; EmergeManager *emerge = getServer(L)->getEmergeManager(); Mapgen *mg = emerge->getCurrentMapgen(); if (!mg) return 0; size_t maplen = mg->csize.X * mg->csize.Z; switch (mgobj) { case MGOBJ_VMANIP: { MMVManip *vm = mg->vm; // VoxelManip object LuaVoxelManip *o = new LuaVoxelManip(vm, true); *(void **)(lua_newuserdata(L, sizeof(void *))) = o; luaL_getmetatable(L, "VoxelManip"); lua_setmetatable(L, -2); // emerged min pos push_v3s16(L, vm->m_area.MinEdge); // emerged max pos push_v3s16(L, vm->m_area.MaxEdge); return 3; } case MGOBJ_HEIGHTMAP: { if (!mg->heightmap) return 0; lua_newtable(L); for (size_t i = 0; i != maplen; i++) { lua_pushinteger(L, mg->heightmap[i]); lua_rawseti(L, -2, i + 1); } return 1; } case MGOBJ_BIOMEMAP: { if (!mg->biomemap) return 0; lua_newtable(L); for (size_t i = 0; i != maplen; i++) { lua_pushinteger(L, mg->biomemap[i]); lua_rawseti(L, -2, i + 1); } return 1; } case MGOBJ_HEATMAP: { if (!mg->heatmap) return 0; lua_newtable(L); for (size_t i = 0; i != maplen; i++) { lua_pushnumber(L, mg->heatmap[i]); lua_rawseti(L, -2, i + 1); } return 1; } case MGOBJ_HUMIDMAP: { if (!mg->humidmap) return 0; lua_newtable(L); for (size_t i = 0; i != maplen; i++) { lua_pushnumber(L, mg->humidmap[i]); lua_rawseti(L, -2, i + 1); } return 1; } case MGOBJ_GENNOTIFY: { std::map<std::string, std::vector<v3s16> >event_map; std::map<std::string, std::vector<v3s16> >::iterator it; mg->gennotify.getEvents(event_map); lua_newtable(L); for (it = event_map.begin(); it != event_map.end(); ++it) { lua_newtable(L); for (size_t j = 0; j != it->second.size(); j++) { push_v3s16(L, it->second[j]); lua_rawseti(L, -2, j + 1); } lua_setfield(L, -2, it->first.c_str()); } return 1; } } return 0; } int ModApiMapgen::l_get_mapgen_params(lua_State *L) { MapgenParams *params = &getServer(L)->getEmergeManager()->params; lua_newtable(L); lua_pushstring(L, params->mg_name.c_str()); lua_setfield(L, -2, "mgname"); lua_pushinteger(L, params->seed); lua_setfield(L, -2, "seed"); lua_pushinteger(L, params->water_level); lua_setfield(L, -2, "water_level"); lua_pushinteger(L, params->chunksize); lua_setfield(L, -2, "chunksize"); std::string flagstr = writeFlagString(params->flags, flagdesc_mapgen, (u32)-1); lua_pushstring(L, flagstr.c_str()); lua_setfield(L, -2, "flags"); return 1; } // set_mapgen_params(params) // set mapgen parameters int ModApiMapgen::l_set_mapgen_params(lua_State *L) { if (!lua_istable(L, 1)) return 0; MapgenParams *params = &getServer(L)->getEmergeManager()->params; u32 flags = 0, flagmask = 0; lua_getfield(L, 1, "mgname"); if (lua_isstring(L, -1)) { params->mg_name = lua_tostring(L, -1); delete params->sparams; params->sparams = NULL; } lua_getfield(L, 1, "seed"); if (lua_isnumber(L, -1)) params->seed = lua_tointeger(L, -1); lua_getfield(L, 1, "water_level"); if (lua_isnumber(L, -1)) params->water_level = lua_tointeger(L, -1); warn_if_field_exists(L, 1, "flagmask", "Deprecated: flags field now includes unset flags."); lua_getfield(L, 1, "flagmask"); if (lua_isstring(L, -1)) params->flags &= ~readFlagString(lua_tostring(L, -1), flagdesc_mapgen, NULL); if (getflagsfield(L, 1, "flags", flagdesc_mapgen, &flags, &flagmask)) { params->flags &= ~flagmask; params->flags |= flags; } return 0; } // set_noiseparams(name, noiseparams, set_default) // set global config values for noise parameters int ModApiMapgen::l_set_noiseparams(lua_State *L) { const char *name = luaL_checkstring(L, 1); NoiseParams np; if (!read_noiseparams(L, 2, &np)) return 0; bool set_default = lua_isboolean(L, 3) ? lua_toboolean(L, 3) : true; g_settings->setNoiseParams(name, np, set_default); return 0; } // get_noiseparams(name) int ModApiMapgen::l_get_noiseparams(lua_State *L) { std::string name = luaL_checkstring(L, 1); NoiseParams np; if (!g_settings->getNoiseParams(name, np)) return 0; push_noiseparams(L, &np); return 1; } // set_gen_notify(flags, {deco_id_table}) int ModApiMapgen::l_set_gen_notify(lua_State *L) { u32 flags = 0, flagmask = 0; EmergeManager *emerge = getServer(L)->getEmergeManager(); if (read_flags(L, 1, flagdesc_gennotify, &flags, &flagmask)) { emerge->gen_notify_on &= ~flagmask; emerge->gen_notify_on |= flags; } if (lua_istable(L, 2)) { lua_pushnil(L); while (lua_next(L, 2)) { if (lua_isnumber(L, -1)) emerge->gen_notify_on_deco_ids.insert(lua_tonumber(L, -1)); lua_pop(L, 1); } } return 0; } // get_gen_notify() int ModApiMapgen::l_get_gen_notify(lua_State *L) { EmergeManager *emerge = getServer(L)->getEmergeManager(); push_flags_string(L, flagdesc_gennotify, emerge->gen_notify_on, emerge->gen_notify_on); lua_newtable(L); int i = 1; for (std::set<u32>::iterator it = emerge->gen_notify_on_deco_ids.begin(); it != emerge->gen_notify_on_deco_ids.end(); ++it) { lua_pushnumber(L, *it); lua_rawseti(L, -2, i); i++; } return 2; } // register_biome({lots of stuff}) int ModApiMapgen::l_register_biome(lua_State *L) { int index = 1; luaL_checktype(L, index, LUA_TTABLE); INodeDefManager *ndef = getServer(L)->getNodeDefManager(); BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr; Biome *biome = read_biome_def(L, index, ndef); if (!biome) return 0; ObjDefHandle handle = bmgr->add(biome); if (handle == OBJDEF_INVALID_HANDLE) { delete biome; return 0; } lua_pushinteger(L, handle); return 1; } // register_decoration({lots of stuff}) int ModApiMapgen::l_register_decoration(lua_State *L) { int index = 1; luaL_checktype(L, index, LUA_TTABLE); INodeDefManager *ndef = getServer(L)->getNodeDefManager(); DecorationManager *decomgr = getServer(L)->getEmergeManager()->decomgr; BiomeManager *biomemgr = getServer(L)->getEmergeManager()->biomemgr; SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr; enum DecorationType decotype = (DecorationType)getenumfield(L, index, "deco_type", es_DecorationType, -1); Decoration *deco = decomgr->create(decotype); if (!deco) { errorstream << "register_decoration: decoration placement type " << decotype << " not implemented" << std::endl; return 0; } deco->name = getstringfield_default(L, index, "name", ""); deco->fill_ratio = getfloatfield_default(L, index, "fill_ratio", 0.02); deco->y_min = getintfield_default(L, index, "y_min", -31000); deco->y_max = getintfield_default(L, index, "y_max", 31000); deco->sidelen = getintfield_default(L, index, "sidelen", 8); if (deco->sidelen <= 0) { errorstream << "register_decoration: sidelen must be " "greater than 0" << std::endl; delete deco; return 0; } //// Get node name(s) to place decoration on size_t nread = getstringlistfield(L, index, "place_on", &deco->m_nodenames); deco->m_nnlistsizes.push_back(nread); //// Get decoration flags getflagsfield(L, index, "flags", flagdesc_deco, &deco->flags, NULL); //// Get NoiseParams to define how decoration is placed lua_getfield(L, index, "noise_params"); if (read_noiseparams(L, -1, &deco->np)) deco->flags |= DECO_USE_NOISE; lua_pop(L, 1); //// Get biomes associated with this decoration (if any) lua_getfield(L, index, "biomes"); if (get_biome_list(L, -1, biomemgr, &deco->biomes)) errorstream << "register_decoration: couldn't get all biomes " << std::endl; lua_pop(L, 1); //// Handle decoration type-specific parameters bool success = false; switch (decotype) { case DECO_SIMPLE: success = read_deco_simple(L, (DecoSimple *)deco); break; case DECO_SCHEMATIC: success = read_deco_schematic(L, schemmgr, (DecoSchematic *)deco); break; case DECO_LSYSTEM: break; } if (!success) { delete deco; return 0; } ndef->pendNodeResolve(deco); ObjDefHandle handle = decomgr->add(deco); if (handle == OBJDEF_INVALID_HANDLE) { delete deco; return 0; } lua_pushinteger(L, handle); return 1; } bool read_deco_simple(lua_State *L, DecoSimple *deco) { size_t nnames; int index = 1; deco->deco_height = getintfield_default(L, index, "height", 1); deco->deco_height_max = getintfield_default(L, index, "height_max", 0); deco->nspawnby = getintfield_default(L, index, "num_spawn_by", -1); if (deco->deco_height <= 0) { errorstream << "register_decoration: simple decoration height" " must be greater than 0" << std::endl; return false; } nnames = getstringlistfield(L, index, "decoration", &deco->m_nodenames); deco->m_nnlistsizes.push_back(nnames); if (nnames == 0) { errorstream << "register_decoration: no decoration nodes " "defined" << std::endl; return false; } nnames = getstringlistfield(L, index, "spawn_by", &deco->m_nodenames); deco->m_nnlistsizes.push_back(nnames); if (nnames == 0 && deco->nspawnby != -1) { errorstream << "register_decoration: no spawn_by nodes defined," " but num_spawn_by specified" << std::endl; return false; } return true; } bool read_deco_schematic(lua_State *L, SchematicManager *schemmgr, DecoSchematic *deco) { int index = 1; deco->rotation = (Rotation)getenumfield(L, index, "rotation", ModApiMapgen::es_Rotation, ROTATE_0); StringMap replace_names; lua_getfield(L, index, "replacements"); if (lua_istable(L, -1)) read_schematic_replacements(L, -1, &replace_names); lua_pop(L, 1); lua_getfield(L, index, "schematic"); Schematic *schem = get_or_load_schematic(L, -1, schemmgr, &replace_names); lua_pop(L, 1); deco->schematic = schem; return schem != NULL; } // register_ore({lots of stuff}) int ModApiMapgen::l_register_ore(lua_State *L) { int index = 1; luaL_checktype(L, index, LUA_TTABLE); INodeDefManager *ndef = getServer(L)->getNodeDefManager(); BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr; OreManager *oremgr = getServer(L)->getEmergeManager()->oremgr; enum OreType oretype = (OreType)getenumfield(L, index, "ore_type", es_OreType, ORE_SCATTER); Ore *ore = oremgr->create(oretype); if (!ore) { errorstream << "register_ore: ore_type " << oretype << " not implemented"; return 0; } ore->name = getstringfield_default(L, index, "name", ""); ore->ore_param2 = (u8)getintfield_default(L, index, "ore_param2", 0); ore->clust_scarcity = getintfield_default(L, index, "clust_scarcity", 1); ore->clust_num_ores = getintfield_default(L, index, "clust_num_ores", 1); ore->clust_size = getintfield_default(L, index, "clust_size", 0); ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0); ore->noise = NULL; ore->flags = 0; //// Get y_min/y_max warn_if_field_exists(L, index, "height_min", "Deprecated: new name is \"y_min\"."); warn_if_field_exists(L, index, "height_max", "Deprecated: new name is \"y_max\"."); int ymin, ymax; if (!getintfield(L, index, "y_min", ymin) && !getintfield(L, index, "height_min", ymin)) ymin = -31000; if (!getintfield(L, index, "y_max", ymax) && !getintfield(L, index, "height_max", ymax)) ymax = 31000; ore->y_min = ymin; ore->y_max = ymax; if (ore->clust_scarcity <= 0 || ore->clust_num_ores <= 0) { errorstream << "register_ore: clust_scarcity and clust_num_ores" "must be greater than 0" << std::endl; delete ore; return 0; } //// Get flags getflagsfield(L, index, "flags", flagdesc_ore, &ore->flags, NULL); //// Get biomes associated with this decoration (if any) lua_getfield(L, index, "biomes"); if (get_biome_list(L, -1, bmgr, &ore->biomes)) errorstream << "register_ore: couldn't get all biomes " << std::endl; lua_pop(L, 1); //// Get noise parameters if needed lua_getfield(L, index, "noise_params"); if (read_noiseparams(L, -1, &ore->np)) { ore->flags |= OREFLAG_USE_NOISE; } else if (ore->NEEDS_NOISE) { errorstream << "register_ore: specified ore type requires valid " "noise parameters" << std::endl; delete ore; return 0; } lua_pop(L, 1); if (oretype == ORE_VEIN) { OreVein *orevein = (OreVein *)ore; orevein->random_factor = getfloatfield_default(L, index, "random_factor", 1.f); }