3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #include "lua_api/l_mapgen.h"
21 #include "lua_api/l_internal.h"
22 #include "lua_api/l_vmanip.h"
23 #include "common/c_converter.h"
24 #include "common/c_content.h"
25 #include "cpp_api/s_security.h"
26 #include "util/serialize.h"
28 #include "environment.h"
32 #include "mg_decoration.h"
33 #include "mg_schematic.h"
34 #include "mapgen_v5.h"
35 #include "mapgen_v7.h"
40 struct EnumString ModApiMapgen::es_BiomeTerrainType[] =
42 {BIOME_NORMAL, "normal"},
43 {BIOME_LIQUID, "liquid"},
44 {BIOME_NETHER, "nether"},
45 {BIOME_AETHER, "aether"},
50 struct EnumString ModApiMapgen::es_DecorationType[] =
52 {DECO_SIMPLE, "simple"},
53 {DECO_SCHEMATIC, "schematic"},
54 {DECO_LSYSTEM, "lsystem"},
58 struct EnumString ModApiMapgen::es_MapgenObject[] =
60 {MGOBJ_VMANIP, "voxelmanip"},
61 {MGOBJ_HEIGHTMAP, "heightmap"},
62 {MGOBJ_BIOMEMAP, "biomemap"},
63 {MGOBJ_HEATMAP, "heatmap"},
64 {MGOBJ_HUMIDMAP, "humiditymap"},
65 {MGOBJ_GENNOTIFY, "gennotify"},
69 struct EnumString ModApiMapgen::es_OreType[] =
71 {ORE_SCATTER, "scatter"},
79 struct EnumString ModApiMapgen::es_Rotation[] =
85 {ROTATE_RAND, "random"},
89 struct EnumString ModApiMapgen::es_SchematicFormatType[] =
91 {SCHEM_FMT_HANDLE, "handle"},
92 {SCHEM_FMT_MTS, "mts"},
93 {SCHEM_FMT_LUA, "lua"},
97 ObjDef *get_objdef(lua_State *L, int index, ObjDefManager *objmgr);
99 Biome *get_or_load_biome(lua_State *L, int index,
100 BiomeManager *biomemgr);
101 Biome *read_biome_def(lua_State *L, int index, INodeDefManager *ndef);
102 size_t get_biome_list(lua_State *L, int index,
103 BiomeManager *biomemgr, std::set<u8> *biome_id_list);
105 Schematic *get_or_load_schematic(lua_State *L, int index,
106 SchematicManager *schemmgr, StringMap *replace_names);
107 Schematic *load_schematic(lua_State *L, int index, INodeDefManager *ndef,
108 StringMap *replace_names);
109 Schematic *load_schematic_from_def(lua_State *L, int index,
110 INodeDefManager *ndef, StringMap *replace_names);
111 bool read_schematic_def(lua_State *L, int index,
112 Schematic *schem, std::vector<std::string> *names);
114 bool read_deco_simple(lua_State *L, DecoSimple *deco);
115 bool read_deco_schematic(lua_State *L, SchematicManager *schemmgr, DecoSchematic *deco);
118 ///////////////////////////////////////////////////////////////////////////////
120 ObjDef *get_objdef(lua_State *L, int index, ObjDefManager *objmgr)
123 index = lua_gettop(L) + 1 + index;
125 // If a number, assume this is a handle to an object def
126 if (lua_isnumber(L, index))
127 return objmgr->get(lua_tointeger(L, index));
129 // If a string, assume a name is given instead
130 if (lua_isstring(L, index))
131 return objmgr->getByName(lua_tostring(L, index));
136 ///////////////////////////////////////////////////////////////////////////////
138 Schematic *get_or_load_schematic(lua_State *L, int index,
139 SchematicManager *schemmgr, StringMap *replace_names)
142 index = lua_gettop(L) + 1 + index;
144 Schematic *schem = (Schematic *)get_objdef(L, index, schemmgr);
148 schem = load_schematic(L, index, schemmgr->getNodeDef(),
153 if (schemmgr->add(schem) == OBJDEF_INVALID_HANDLE) {
162 Schematic *load_schematic(lua_State *L, int index, INodeDefManager *ndef,
163 StringMap *replace_names)
166 index = lua_gettop(L) + 1 + index;
168 Schematic *schem = NULL;
170 if (lua_istable(L, index)) {
171 schem = load_schematic_from_def(L, index, ndef,
177 } else if (lua_isnumber(L, index)) {
179 } else if (lua_isstring(L, index)) {
180 schem = SchematicManager::create(SCHEMATIC_NORMAL);
182 std::string filepath = lua_tostring(L, index);
183 if (!fs::IsPathAbsolute(filepath))
184 filepath = ModApiBase::getCurrentModPath(L) + DIR_DELIM + filepath;
186 if (!schem->loadSchematicFromFile(filepath, ndef,
197 Schematic *load_schematic_from_def(lua_State *L, int index,
198 INodeDefManager *ndef, StringMap *replace_names)
200 Schematic *schem = SchematicManager::create(SCHEMATIC_NORMAL);
202 if (!read_schematic_def(L, index, schem, &schem->m_nodenames)) {
207 size_t num_nodes = schem->m_nodenames.size();
209 schem->m_nnlistsizes.push_back(num_nodes);
212 for (size_t i = 0; i != num_nodes; i++) {
213 StringMap::iterator it = replace_names->find(schem->m_nodenames[i]);
214 if (it != replace_names->end())
215 schem->m_nodenames[i] = it->second;
220 ndef->pendNodeResolve(schem);
226 bool read_schematic_def(lua_State *L, int index,
227 Schematic *schem, std::vector<std::string> *names)
229 if (!lua_istable(L, index))
232 //// Get schematic size
233 lua_getfield(L, index, "size");
234 v3s16 size = check_v3s16(L, -1);
239 //// Get schematic data
240 lua_getfield(L, index, "data");
241 luaL_checktype(L, -1, LUA_TTABLE);
243 u32 numnodes = size.X * size.Y * size.Z;
244 schem->schemdata = new MapNode[numnodes];
246 size_t names_base = names->size();
247 std::map<std::string, content_t> name_id_map;
250 for (lua_pushnil(L); lua_next(L, -2); i++, lua_pop(L, 1)) {
256 if (!getstringfield(L, -1, "name", name))
257 throw LuaError("Schematic data definition with missing name field");
259 //// Read param1/prob
261 if (!getintfield(L, -1, "param1", param1) &&
262 !getintfield(L, -1, "prob", param1))
263 param1 = MTSCHEM_PROB_ALWAYS_OLD;
266 u8 param2 = getintfield_default(L, -1, "param2", 0);
268 //// Find or add new nodename-to-ID mapping
269 std::map<std::string, content_t>::iterator it = name_id_map.find(name);
270 content_t name_index;
271 if (it != name_id_map.end()) {
272 name_index = it->second;
274 name_index = names->size() - names_base;
275 name_id_map[name] = name_index;
276 names->push_back(name);
279 //// Perform probability/force_place fixup on param1
281 if (getboolfield_default(L, -1, "force_place", false))
282 param1 |= MTSCHEM_FORCE_PLACE;
284 //// Actually set the node in the schematic
285 schem->schemdata[i] = MapNode(name_index, param1, param2);
289 errorstream << "read_schematic_def: incorrect number of "
290 "nodes provided in raw schematic data (got " << i <<
291 ", expected " << numnodes << ")." << std::endl;
295 //// Get Y-slice probability values (if present)
296 schem->slice_probs = new u8[size.Y];
297 for (i = 0; i != (u32) size.Y; i++)
298 schem->slice_probs[i] = MTSCHEM_PROB_ALWAYS;
300 lua_getfield(L, index, "yslice_prob");
301 if (lua_istable(L, -1)) {
302 for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) {
304 if (!getintfield(L, -1, "ypos", ypos) || (ypos >= size.Y) ||
305 !getintfield(L, -1, "prob", schem->slice_probs[ypos]))
308 schem->slice_probs[ypos] >>= 1;
316 void read_schematic_replacements(lua_State *L, int index, StringMap *replace_names)
319 index = lua_gettop(L) + 1 + index;
322 while (lua_next(L, index)) {
323 std::string replace_from;
324 std::string replace_to;
326 if (lua_istable(L, -1)) { // Old {{"x", "y"}, ...} format
327 lua_rawgeti(L, -1, 1);
328 replace_from = lua_tostring(L, -1);
331 lua_rawgeti(L, -1, 2);
332 replace_to = lua_tostring(L, -1);
334 } else { // New {x = "y", ...} format
335 replace_from = lua_tostring(L, -2);
336 replace_to = lua_tostring(L, -1);
339 replace_names->insert(std::make_pair(replace_from, replace_to));
344 ///////////////////////////////////////////////////////////////////////////////
346 Biome *get_or_load_biome(lua_State *L, int index, BiomeManager *biomemgr)
349 index = lua_gettop(L) + 1 + index;
351 Biome *biome = (Biome *)get_objdef(L, index, biomemgr);
355 biome = read_biome_def(L, index, biomemgr->getNodeDef());
359 if (biomemgr->add(biome) == OBJDEF_INVALID_HANDLE) {
368 Biome *read_biome_def(lua_State *L, int index, INodeDefManager *ndef)
370 if (!lua_istable(L, index))
373 BiomeType biometype = (BiomeType)getenumfield(L, index, "type",
374 ModApiMapgen::es_BiomeTerrainType, BIOME_NORMAL);
375 Biome *b = BiomeManager::create(biometype);
377 b->name = getstringfield_default(L, index, "name", "");
378 b->depth_top = getintfield_default(L, index, "depth_top", 0);
379 b->depth_filler = getintfield_default(L, index, "depth_filler", -31000);
380 b->depth_water_top = getintfield_default(L, index, "depth_water_top", 0);
381 b->y_min = getintfield_default(L, index, "y_min", -31000);
382 b->y_max = getintfield_default(L, index, "y_max", 31000);
383 b->heat_point = getfloatfield_default(L, index, "heat_point", 0.f);
384 b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.f);
385 b->flags = 0; //reserved
387 std::vector<std::string> &nn = b->m_nodenames;
388 nn.push_back(getstringfield_default(L, index, "node_top", ""));
389 nn.push_back(getstringfield_default(L, index, "node_filler", ""));
390 nn.push_back(getstringfield_default(L, index, "node_stone", ""));
391 nn.push_back(getstringfield_default(L, index, "node_water_top", ""));
392 nn.push_back(getstringfield_default(L, index, "node_water", ""));
393 nn.push_back(getstringfield_default(L, index, "node_river_water", ""));
394 nn.push_back(getstringfield_default(L, index, "node_dust", ""));
395 ndef->pendNodeResolve(b);
401 size_t get_biome_list(lua_State *L, int index,
402 BiomeManager *biomemgr, std::set<u8> *biome_id_list)
405 index = lua_gettop(L) + 1 + index;
407 if (lua_isnil(L, index))
410 bool is_single = true;
411 if (lua_istable(L, index)) {
412 lua_getfield(L, index, "name");
413 is_single = !lua_isnil(L, -1);
418 Biome *biome = get_or_load_biome(L, index, biomemgr);
420 errorstream << "get_biome_list: failed to get biome '"
421 << (lua_isstring(L, index) ? lua_tostring(L, index) : "")
422 << "'." << std::endl;
426 biome_id_list->insert(biome->index);
430 // returns number of failed resolutions
431 size_t fail_count = 0;
434 for (lua_pushnil(L); lua_next(L, index); lua_pop(L, 1)) {
436 Biome *biome = get_or_load_biome(L, -1, biomemgr);
439 errorstream << "get_biome_list: failed to get biome '"
440 << (lua_isstring(L, -1) ? lua_tostring(L, -1) : "")
445 biome_id_list->insert(biome->index);
451 ///////////////////////////////////////////////////////////////////////////////
453 // get_biome_id(biomename)
454 // returns the biome id used in biomemap
455 int ModApiMapgen::l_get_biome_id(lua_State *L)
457 const char *biome_str = lua_tostring(L, 1);
461 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
466 Biome *biome = (Biome *) bmgr->getByName(biome_str);
468 if (!biome || biome->index == OBJDEF_INVALID_INDEX)
471 lua_pushinteger(L, biome->index);
477 // get_mapgen_object(objectname)
478 // returns the requested object used during map generation
479 int ModApiMapgen::l_get_mapgen_object(lua_State *L)
481 const char *mgobjstr = lua_tostring(L, 1);
484 if (!string_to_enum(es_MapgenObject, mgobjint, mgobjstr ? mgobjstr : ""))
487 enum MapgenObject mgobj = (MapgenObject)mgobjint;
489 EmergeManager *emerge = getServer(L)->getEmergeManager();
490 Mapgen *mg = emerge->getCurrentMapgen();
494 size_t maplen = mg->csize.X * mg->csize.Z;
498 MMVManip *vm = mg->vm;
501 LuaVoxelManip *o = new LuaVoxelManip(vm, true);
502 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
503 luaL_getmetatable(L, "VoxelManip");
504 lua_setmetatable(L, -2);
507 push_v3s16(L, vm->m_area.MinEdge);
510 push_v3s16(L, vm->m_area.MaxEdge);
514 case MGOBJ_HEIGHTMAP: {
519 for (size_t i = 0; i != maplen; i++) {
520 lua_pushinteger(L, mg->heightmap[i]);
521 lua_rawseti(L, -2, i + 1);
526 case MGOBJ_BIOMEMAP: {
531 for (size_t i = 0; i != maplen; i++) {
532 lua_pushinteger(L, mg->biomemap[i]);
533 lua_rawseti(L, -2, i + 1);
538 case MGOBJ_HEATMAP: {
543 for (size_t i = 0; i != maplen; i++) {
544 lua_pushnumber(L, mg->heatmap[i]);
545 lua_rawseti(L, -2, i + 1);
551 case MGOBJ_HUMIDMAP: {
556 for (size_t i = 0; i != maplen; i++) {
557 lua_pushnumber(L, mg->humidmap[i]);
558 lua_rawseti(L, -2, i + 1);
563 case MGOBJ_GENNOTIFY: {
564 std::map<std::string, std::vector<v3s16> >event_map;
565 std::map<std::string, std::vector<v3s16> >::iterator it;
567 mg->gennotify.getEvents(event_map);
570 for (it = event_map.begin(); it != event_map.end(); ++it) {
573 for (size_t j = 0; j != it->second.size(); j++) {
574 push_v3s16(L, it->second[j]);
575 lua_rawseti(L, -2, j + 1);
578 lua_setfield(L, -2, it->first.c_str());
589 int ModApiMapgen::l_get_mapgen_params(lua_State *L)
591 MapgenParams *params = &getServer(L)->getEmergeManager()->params;
595 lua_pushstring(L, params->mg_name.c_str());
596 lua_setfield(L, -2, "mgname");
598 lua_pushinteger(L, params->seed);
599 lua_setfield(L, -2, "seed");
601 lua_pushinteger(L, params->water_level);
602 lua_setfield(L, -2, "water_level");
604 lua_pushinteger(L, params->chunksize);
605 lua_setfield(L, -2, "chunksize");
607 std::string flagstr = writeFlagString(params->flags, flagdesc_mapgen, U32_MAX);
608 lua_pushstring(L, flagstr.c_str());
609 lua_setfield(L, -2, "flags");
615 // set_mapgen_params(params)
616 // set mapgen parameters
617 int ModApiMapgen::l_set_mapgen_params(lua_State *L)
619 if (!lua_istable(L, 1))
622 EmergeManager *emerge = getServer(L)->getEmergeManager();
623 if (emerge->isRunning())
624 throw LuaError("Cannot set parameters while mapgen is running");
626 MapgenParams *params = &emerge->params;
627 u32 flags = 0, flagmask = 0;
629 lua_getfield(L, 1, "mgname");
630 if (lua_isstring(L, -1)) {
631 params->mg_name = lua_tostring(L, -1);
632 delete params->sparams;
633 params->sparams = NULL;
636 lua_getfield(L, 1, "seed");
637 if (lua_isnumber(L, -1))
638 params->seed = lua_tointeger(L, -1);
640 lua_getfield(L, 1, "water_level");
641 if (lua_isnumber(L, -1))
642 params->water_level = lua_tointeger(L, -1);
644 lua_getfield(L, 1, "chunksize");
645 if (lua_isnumber(L, -1))
646 params->chunksize = lua_tointeger(L, -1);
648 warn_if_field_exists(L, 1, "flagmask",
649 "Deprecated: flags field now includes unset flags.");
650 lua_getfield(L, 1, "flagmask");
651 if (lua_isstring(L, -1))
652 params->flags &= ~readFlagString(lua_tostring(L, -1), flagdesc_mapgen, NULL);
654 if (getflagsfield(L, 1, "flags", flagdesc_mapgen, &flags, &flagmask)) {
655 params->flags &= ~flagmask;
656 params->flags |= flags;
663 // set_noiseparams(name, noiseparams, set_default)
664 // set global config values for noise parameters
665 int ModApiMapgen::l_set_noiseparams(lua_State *L)
667 const char *name = luaL_checkstring(L, 1);
670 if (!read_noiseparams(L, 2, &np))
673 bool set_default = lua_isboolean(L, 3) ? lua_toboolean(L, 3) : true;
675 g_settings->setNoiseParams(name, np, set_default);
681 // get_noiseparams(name)
682 int ModApiMapgen::l_get_noiseparams(lua_State *L)
684 std::string name = luaL_checkstring(L, 1);
687 if (!g_settings->getNoiseParams(name, np))
690 push_noiseparams(L, &np);
695 // set_gen_notify(flags, {deco_id_table})
696 int ModApiMapgen::l_set_gen_notify(lua_State *L)
698 u32 flags = 0, flagmask = 0;
699 EmergeManager *emerge = getServer(L)->getEmergeManager();
701 if (read_flags(L, 1, flagdesc_gennotify, &flags, &flagmask)) {
702 emerge->gen_notify_on &= ~flagmask;
703 emerge->gen_notify_on |= flags;
706 if (lua_istable(L, 2)) {
708 while (lua_next(L, 2)) {
709 if (lua_isnumber(L, -1))
710 emerge->gen_notify_on_deco_ids.insert((u32)lua_tonumber(L, -1));
720 int ModApiMapgen::l_get_gen_notify(lua_State *L)
722 EmergeManager *emerge = getServer(L)->getEmergeManager();
723 push_flags_string(L, flagdesc_gennotify, emerge->gen_notify_on,
724 emerge->gen_notify_on);
728 for (std::set<u32>::iterator it = emerge->gen_notify_on_deco_ids.begin();
729 it != emerge->gen_notify_on_deco_ids.end(); ++it) {
730 lua_pushnumber(L, *it);
731 lua_rawseti(L, -2, i);
738 // register_biome({lots of stuff})
739 int ModApiMapgen::l_register_biome(lua_State *L)
742 luaL_checktype(L, index, LUA_TTABLE);
744 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
745 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
747 Biome *biome = read_biome_def(L, index, ndef);
751 ObjDefHandle handle = bmgr->add(biome);
752 if (handle == OBJDEF_INVALID_HANDLE) {
757 lua_pushinteger(L, handle);
762 // register_decoration({lots of stuff})
763 int ModApiMapgen::l_register_decoration(lua_State *L)
766 luaL_checktype(L, index, LUA_TTABLE);
768 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
769 DecorationManager *decomgr = getServer(L)->getEmergeManager()->decomgr;
770 BiomeManager *biomemgr = getServer(L)->getEmergeManager()->biomemgr;
771 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
773 enum DecorationType decotype = (DecorationType)getenumfield(L, index,
774 "deco_type", es_DecorationType, -1);
776 Decoration *deco = decomgr->create(decotype);
778 errorstream << "register_decoration: decoration placement type "
779 << decotype << " not implemented" << std::endl;
783 deco->name = getstringfield_default(L, index, "name", "");
784 deco->fill_ratio = getfloatfield_default(L, index, "fill_ratio", 0.02);
785 deco->y_min = getintfield_default(L, index, "y_min", -31000);
786 deco->y_max = getintfield_default(L, index, "y_max", 31000);
787 deco->sidelen = getintfield_default(L, index, "sidelen", 8);
788 if (deco->sidelen <= 0) {
789 errorstream << "register_decoration: sidelen must be "
790 "greater than 0" << std::endl;
795 //// Get node name(s) to place decoration on
796 size_t nread = getstringlistfield(L, index, "place_on", &deco->m_nodenames);
797 deco->m_nnlistsizes.push_back(nread);
799 //// Get decoration flags
800 getflagsfield(L, index, "flags", flagdesc_deco, &deco->flags, NULL);
802 //// Get NoiseParams to define how decoration is placed
803 lua_getfield(L, index, "noise_params");
804 if (read_noiseparams(L, -1, &deco->np))
805 deco->flags |= DECO_USE_NOISE;
808 //// Get biomes associated with this decoration (if any)
809 lua_getfield(L, index, "biomes");
810 if (get_biome_list(L, -1, biomemgr, &deco->biomes))
811 errorstream << "register_decoration: couldn't get all biomes " << std::endl;
814 //// Handle decoration type-specific parameters
815 bool success = false;
818 success = read_deco_simple(L, (DecoSimple *)deco);
821 success = read_deco_schematic(L, schemmgr, (DecoSchematic *)deco);
832 ndef->pendNodeResolve(deco);
834 ObjDefHandle handle = decomgr->add(deco);
835 if (handle == OBJDEF_INVALID_HANDLE) {
840 lua_pushinteger(L, handle);
845 bool read_deco_simple(lua_State *L, DecoSimple *deco)
850 deco->deco_height = getintfield_default(L, index, "height", 1);
851 deco->deco_height_max = getintfield_default(L, index, "height_max", 0);
852 deco->nspawnby = getintfield_default(L, index, "num_spawn_by", -1);
854 if (deco->deco_height <= 0) {
855 errorstream << "register_decoration: simple decoration height"
856 " must be greater than 0" << std::endl;
860 nnames = getstringlistfield(L, index, "decoration", &deco->m_nodenames);
861 deco->m_nnlistsizes.push_back(nnames);
863 errorstream << "register_decoration: no decoration nodes "
864 "defined" << std::endl;
868 nnames = getstringlistfield(L, index, "spawn_by", &deco->m_nodenames);
869 deco->m_nnlistsizes.push_back(nnames);
870 if (nnames == 0 && deco->nspawnby != -1) {
871 errorstream << "register_decoration: no spawn_by nodes defined,"
872 " but num_spawn_by specified" << std::endl;
880 bool read_deco_schematic(lua_State *L, SchematicManager *schemmgr, DecoSchematic *deco)
884 deco->rotation = (Rotation)getenumfield(L, index, "rotation",
885 ModApiMapgen::es_Rotation, ROTATE_0);
887 StringMap replace_names;
888 lua_getfield(L, index, "replacements");
889 if (lua_istable(L, -1))
890 read_schematic_replacements(L, -1, &replace_names);
893 lua_getfield(L, index, "schematic");
894 Schematic *schem = get_or_load_schematic(L, -1, schemmgr, &replace_names);
897 deco->schematic = schem;
898 return schem != NULL;
902 // register_ore({lots of stuff})
903 int ModApiMapgen::l_register_ore(lua_State *L)
906 luaL_checktype(L, index, LUA_TTABLE);
908 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
909 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
910 OreManager *oremgr = getServer(L)->getEmergeManager()->oremgr;
912 enum OreType oretype = (OreType)getenumfield(L, index,
913 "ore_type", es_OreType, ORE_SCATTER);
914 Ore *ore = oremgr->create(oretype);
916 errorstream << "register_ore: ore_type " << oretype << " not implemented\n";
920 ore->name = getstringfield_default(L, index, "name", "");
921 ore->ore_param2 = (u8)getintfield_default(L, index, "ore_param2", 0);
922 ore->clust_scarcity = getintfield_default(L, index, "clust_scarcity", 1);
923 ore->clust_num_ores = getintfield_default(L, index, "clust_num_ores", 1);
924 ore->clust_size = getintfield_default(L, index, "clust_size", 0);
925 ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0);
930 warn_if_field_exists(L, index, "height_min",
931 "Deprecated: new name is \"y_min\".");
932 warn_if_field_exists(L, index, "height_max",
933 "Deprecated: new name is \"y_max\".");
936 if (!getintfield(L, index, "y_min", ymin) &&
937 !getintfield(L, index, "height_min", ymin))
939 if (!getintfield(L, index, "y_max", ymax) &&
940 !getintfield(L, index, "height_max", ymax))
945 if (ore->clust_scarcity <= 0 || ore->clust_num_ores <= 0) {
946 errorstream << "register_ore: clust_scarcity and clust_num_ores"
947 "must be greater than 0" << std::endl;
953 getflagsfield(L, index, "flags", flagdesc_ore, &ore->flags, NULL);
955 //// Get biomes associated with this decoration (if any)
956 lua_getfield(L, index, "biomes");
957 if (get_biome_list(L, -1, bmgr, &ore->biomes))
958 errorstream << "register_ore: couldn't get all biomes " << std::endl;
961 //// Get noise parameters if needed
962 lua_getfield(L, index, "noise_params");
963 if (read_noiseparams(L, -1, &ore->np)) {
964 ore->flags |= OREFLAG_USE_NOISE;
965 } else if (ore->NEEDS_NOISE) {
966 errorstream << "register_ore: specified ore type requires valid "
967 "noise parameters" << std::endl;
973 //// Get type-specific parameters
976 OreSheet *oresheet = (OreSheet *)ore;
978 oresheet->column_height_min = getintfield_default(L, index,
979 "column_height_min", 1);
980 oresheet->column_height_max = getintfield_default(L, index,
981 "column_height_max", ore->clust_size);
982 oresheet->column_midpoint_factor = getfloatfield_default(L, index,
983 "column_midpoint_factor", 0.5f);
988 OrePuff *orepuff = (OrePuff *)ore;
990 lua_getfield(L, index, "np_puff_top");
991 read_noiseparams(L, -1, &orepuff->np_puff_top);
994 lua_getfield(L, index, "np_puff_bottom");
995 read_noiseparams(L, -1, &orepuff->np_puff_bottom);
1001 OreVein *orevein = (OreVein *)ore;
1003 orevein->random_factor = getfloatfield_default(L, index,
1004 "random_factor", 1.f);
1012 ObjDefHandle handle = oremgr->add(ore);
1013 if (handle == OBJDEF_INVALID_HANDLE) {
1018 ore->m_nodenames.push_back(getstringfield_default(L, index, "ore", ""));
1020 size_t nnames = getstringlistfield(L, index, "wherein", &ore->m_nodenames);
1021 ore->m_nnlistsizes.push_back(nnames);
1023 ndef->pendNodeResolve(ore);
1025 lua_pushinteger(L, handle);
1030 // register_schematic({schematic}, replacements={})
1031 int ModApiMapgen::l_register_schematic(lua_State *L)
1033 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
1035 StringMap replace_names;
1036 if (lua_istable(L, 2))
1037 read_schematic_replacements(L, 2, &replace_names);
1039 Schematic *schem = load_schematic(L, 1, schemmgr->getNodeDef(),
1044 ObjDefHandle handle = schemmgr->add(schem);
1045 if (handle == OBJDEF_INVALID_HANDLE) {
1050 lua_pushinteger(L, handle);
1055 // clear_registered_biomes()
1056 int ModApiMapgen::l_clear_registered_biomes(lua_State *L)
1058 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
1064 // clear_registered_decorations()
1065 int ModApiMapgen::l_clear_registered_decorations(lua_State *L)
1067 DecorationManager *dmgr = getServer(L)->getEmergeManager()->decomgr;
1073 // clear_registered_ores()
1074 int ModApiMapgen::l_clear_registered_ores(lua_State *L)
1076 OreManager *omgr = getServer(L)->getEmergeManager()->oremgr;
1082 // clear_registered_schematics()
1083 int ModApiMapgen::l_clear_registered_schematics(lua_State *L)
1085 SchematicManager *smgr = getServer(L)->getEmergeManager()->schemmgr;
1091 // generate_ores(vm, p1, p2, [ore_id])
1092 int ModApiMapgen::l_generate_ores(lua_State *L)
1094 EmergeManager *emerge = getServer(L)->getEmergeManager();
1097 mg.seed = emerge->params.seed;
1098 mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
1099 mg.ndef = getServer(L)->getNodeDefManager();
1101 v3s16 pmin = lua_istable(L, 2) ? check_v3s16(L, 2) :
1102 mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
1103 v3s16 pmax = lua_istable(L, 3) ? check_v3s16(L, 3) :
1104 mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
1105 sortBoxVerticies(pmin, pmax);
1107 u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
1109 emerge->oremgr->placeAllOres(&mg, blockseed, pmin, pmax);
1115 // generate_decorations(vm, p1, p2, [deco_id])
1116 int ModApiMapgen::l_generate_decorations(lua_State *L)
1118 EmergeManager *emerge = getServer(L)->getEmergeManager();
1121 mg.seed = emerge->params.seed;
1122 mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
1123 mg.ndef = getServer(L)->getNodeDefManager();
1125 v3s16 pmin = lua_istable(L, 2) ? check_v3s16(L, 2) :
1126 mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
1127 v3s16 pmax = lua_istable(L, 3) ? check_v3s16(L, 3) :
1128 mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
1129 sortBoxVerticies(pmin, pmax);
1131 u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
1133 emerge->decomgr->placeAllDecos(&mg, blockseed, pmin, pmax);
1139 // create_schematic(p1, p2, probability_list, filename, y_slice_prob_list)
1140 int ModApiMapgen::l_create_schematic(lua_State *L)
1142 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
1144 const char *filename = luaL_checkstring(L, 4);
1145 CHECK_SECURE_PATH_OPTIONAL(L, filename);
1147 Map *map = &(getEnv(L)->getMap());
1150 v3s16 p1 = check_v3s16(L, 1);
1151 v3s16 p2 = check_v3s16(L, 2);
1152 sortBoxVerticies(p1, p2);
1154 std::vector<std::pair<v3s16, u8> > prob_list;
1155 if (lua_istable(L, 3)) {
1157 while (lua_next(L, 3)) {
1158 if (lua_istable(L, -1)) {
1159 lua_getfield(L, -1, "pos");
1160 v3s16 pos = check_v3s16(L, -1);
1163 u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
1164 prob_list.push_back(std::make_pair(pos, prob));
1171 std::vector<std::pair<s16, u8> > slice_prob_list;
1172 if (lua_istable(L, 5)) {
1174 while (lua_next(L, 5)) {
1175 if (lua_istable(L, -1)) {
1176 s16 ypos = getintfield_default(L, -1, "ypos", 0);
1177 u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
1178 slice_prob_list.push_back(std::make_pair(ypos, prob));
1185 if (!schem.getSchematicFromMap(map, p1, p2)) {
1186 errorstream << "create_schematic: failed to get schematic "
1187 "from map" << std::endl;
1191 schem.applyProbabilities(p1, &prob_list, &slice_prob_list);
1193 schem.saveSchematicToFile(filename, ndef);
1194 actionstream << "create_schematic: saved schematic file '"
1195 << filename << "'." << std::endl;
1197 lua_pushboolean(L, true);
1202 // place_schematic(p, schematic, rotation, replacement)
1203 int ModApiMapgen::l_place_schematic(lua_State *L)
1205 Map *map = &(getEnv(L)->getMap());
1206 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
1209 v3s16 p = check_v3s16(L, 1);
1213 const char *enumstr = lua_tostring(L, 3);
1215 string_to_enum(es_Rotation, rot, std::string(enumstr));
1217 //// Read force placement
1218 bool force_placement = true;
1219 if (lua_isboolean(L, 5))
1220 force_placement = lua_toboolean(L, 5);
1222 //// Read node replacements
1223 StringMap replace_names;
1224 if (lua_istable(L, 4))
1225 read_schematic_replacements(L, 4, &replace_names);
1228 Schematic *schem = get_or_load_schematic(L, 2, schemmgr, &replace_names);
1230 errorstream << "place_schematic: failed to get schematic" << std::endl;
1234 schem->placeStructure(map, p, 0, (Rotation)rot, force_placement);
1236 lua_pushboolean(L, true);
1240 // serialize_schematic(schematic, format, options={...})
1241 int ModApiMapgen::l_serialize_schematic(lua_State *L)
1243 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
1246 bool use_comments = getboolfield_default(L, 3, "lua_use_comments", false);
1247 u32 indent_spaces = getintfield_default(L, 3, "lua_num_indent_spaces", 0);
1250 bool was_loaded = false;
1251 Schematic *schem = (Schematic *)get_objdef(L, 1, schemmgr);
1253 schem = load_schematic(L, 1, NULL, NULL);
1257 errorstream << "serialize_schematic: failed to get schematic" << std::endl;
1261 //// Read format of definition to save as
1262 int schem_format = SCHEM_FMT_MTS;
1263 const char *enumstr = lua_tostring(L, 2);
1265 string_to_enum(es_SchematicFormatType, schem_format, std::string(enumstr));
1267 //// Serialize to binary string
1268 std::ostringstream os(std::ios_base::binary);
1269 switch (schem_format) {
1271 schem->serializeToMts(&os, schem->m_nodenames);
1274 schem->serializeToLua(&os, schem->m_nodenames,
1275 use_comments, indent_spaces);
1284 std::string ser = os.str();
1285 lua_pushlstring(L, ser.c_str(), ser.length());
1290 void ModApiMapgen::Initialize(lua_State *L, int top)
1292 API_FCT(get_biome_id);
1293 API_FCT(get_mapgen_object);
1295 API_FCT(get_mapgen_params);
1296 API_FCT(set_mapgen_params);
1297 API_FCT(set_noiseparams);
1298 API_FCT(get_noiseparams);
1299 API_FCT(set_gen_notify);
1300 API_FCT(get_gen_notify);
1302 API_FCT(register_biome);
1303 API_FCT(register_decoration);
1304 API_FCT(register_ore);
1305 API_FCT(register_schematic);
1307 API_FCT(clear_registered_biomes);
1308 API_FCT(clear_registered_decorations);
1309 API_FCT(clear_registered_ores);
1310 API_FCT(clear_registered_schematics);
1312 API_FCT(generate_ores);
1313 API_FCT(generate_decorations);
1314 API_FCT(create_schematic);
1315 API_FCT(place_schematic);
1316 API_FCT(serialize_schematic);