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 "util/serialize.h"
27 #include "environment.h"
31 #include "mg_decoration.h"
32 #include "mg_schematic.h"
33 #include "mapgen_v5.h"
34 #include "mapgen_v7.h"
40 struct EnumString ModApiMapgen::es_BiomeTerrainType[] =
42 {BIOME_TYPE_NORMAL, "normal"},
43 {BIOME_TYPE_LIQUID, "liquid"},
44 {BIOME_TYPE_NETHER, "nether"},
45 {BIOME_TYPE_AETHER, "aether"},
46 {BIOME_TYPE_FLAT, "flat"},
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_TYPE_SCATTER, "scatter"},
72 {ORE_TYPE_SHEET, "sheet"},
73 {ORE_TYPE_BLOB, "blob"},
74 {ORE_TYPE_VEIN, "vein"},
78 struct EnumString ModApiMapgen::es_Rotation[] =
84 {ROTATE_RAND, "random"},
89 ///////////////////////////////////////////////////////////////////////////////
92 bool read_schematic_def(lua_State *L, int index, Schematic *schem,
93 INodeDefManager *ndef, std::map<std::string, std::string> &replace_names)
95 //// Get schematic size
96 lua_getfield(L, index, "size");
97 v3s16 size = read_v3s16(L, -1);
100 //// Get schematic data
101 lua_getfield(L, index, "data");
102 luaL_checktype(L, -1, LUA_TTABLE);
104 int numnodes = size.X * size.Y * size.Z;
105 MapNode *schemdata = new MapNode[numnodes];
109 while (lua_next(L, -2)) {
116 // same as readnode, except param1 default is MTSCHEM_PROB_CONST
117 lua_getfield(L, -1, "name");
118 std::string name = luaL_checkstring(L, -1);
122 lua_getfield(L, -1, "param1");
123 param1 = !lua_isnil(L, -1) ? lua_tonumber(L, -1) : MTSCHEM_PROB_ALWAYS;
127 lua_getfield(L, -1, "param2");
128 param2 = !lua_isnil(L, -1) ? lua_tonumber(L, -1) : 0;
131 std::map<std::string, std::string>::iterator it;
132 it = replace_names.find(name);
133 if (it != replace_names.end())
136 schemdata[i] = MapNode(ndef, name, param1, param2);
143 errorstream << "read_schematic: incorrect number of "
144 "nodes provided in raw schematic data (got " << i <<
145 ", expected " << numnodes << ")." << std::endl;
150 //// Get Y-slice probability values (if present)
151 u8 *slice_probs = new u8[size.Y];
152 for (i = 0; i != size.Y; i++)
153 slice_probs[i] = MTSCHEM_PROB_ALWAYS;
155 lua_getfield(L, index, "yslice_prob");
156 if (lua_istable(L, -1)) {
158 while (lua_next(L, -2)) {
159 if (getintfield(L, -1, "ypos", i) && i >= 0 && i < size.Y) {
160 slice_probs[i] = getintfield_default(L, -1,
161 "prob", MTSCHEM_PROB_ALWAYS);
167 // Here, we read the nodes directly from the INodeDefManager - there is no
168 // need for pending node resolutions so we'll mark this schematic as updated
169 schem->flags = SCHEM_CIDS_UPDATED;
172 schem->schemdata = schemdata;
173 schem->slice_probs = slice_probs;
178 Schematic *get_schematic(lua_State *L, int index, SchematicManager *schemmgr,
179 std::map<std::string, std::string> &replace_names)
182 index = lua_gettop(L) + 1 + index;
186 if (lua_isnumber(L, index)) {
187 return (Schematic *)schemmgr->get(lua_tointeger(L, index));
188 } else if (lua_istable(L, index)) {
189 schem = new Schematic;
190 if (!read_schematic_def(L, index, schem,
191 schemmgr->getNodeDef(), replace_names)) {
195 } else if (lua_isstring(L, index)) {
196 const char *filename = lua_tostring(L, index);
197 schem = (Schematic *)schemmgr->getByName(filename);
201 schem = new Schematic;
202 if (!schem->loadSchematicFromFile(filename,
203 schemmgr->getNodeDef(), replace_names)) {
211 if (schemmgr->add(schem) == (u32)-1) {
220 void read_schematic_replacements(lua_State *L,
221 std::map<std::string, std::string> &replace_names, int index)
224 while (lua_next(L, index)) {
225 std::string replace_from;
226 std::string replace_to;
228 if (lua_istable(L, -1)) { // Old {{"x", "y"}, ...} format
229 lua_rawgeti(L, -1, 1);
230 replace_from = lua_tostring(L, -1);
233 lua_rawgeti(L, -1, 2);
234 replace_to = lua_tostring(L, -1);
236 } else { // New {x = "y", ...} format
237 replace_from = lua_tostring(L, -2);
238 replace_to = lua_tostring(L, -1);
241 replace_names[replace_from] = replace_to;
247 // get_mapgen_object(objectname)
248 // returns the requested object used during map generation
249 int ModApiMapgen::l_get_mapgen_object(lua_State *L)
251 const char *mgobjstr = lua_tostring(L, 1);
254 if (!string_to_enum(es_MapgenObject, mgobjint, mgobjstr ? mgobjstr : ""))
257 enum MapgenObject mgobj = (MapgenObject)mgobjint;
259 EmergeManager *emerge = getServer(L)->getEmergeManager();
260 Mapgen *mg = emerge->getCurrentMapgen();
264 size_t maplen = mg->csize.X * mg->csize.Z;
268 MMVManip *vm = mg->vm;
271 LuaVoxelManip *o = new LuaVoxelManip(vm, true);
272 *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
273 luaL_getmetatable(L, "VoxelManip");
274 lua_setmetatable(L, -2);
277 push_v3s16(L, vm->m_area.MinEdge);
280 push_v3s16(L, vm->m_area.MaxEdge);
284 case MGOBJ_HEIGHTMAP: {
289 for (size_t i = 0; i != maplen; i++) {
290 lua_pushinteger(L, mg->heightmap[i]);
291 lua_rawseti(L, -2, i + 1);
296 case MGOBJ_BIOMEMAP: {
301 for (size_t i = 0; i != maplen; i++) {
302 lua_pushinteger(L, mg->biomemap[i]);
303 lua_rawseti(L, -2, i + 1);
308 case MGOBJ_HEATMAP: { // Mapgen V7 specific objects
310 if (strcmp(emerge->params.mg_name.c_str(), "v7"))
313 MapgenV7 *mgv7 = (MapgenV7 *)mg;
315 float *arr = (mgobj == MGOBJ_HEATMAP) ?
316 mgv7->noise_heat->result : mgv7->noise_humidity->result;
321 for (size_t i = 0; i != maplen; i++) {
322 lua_pushnumber(L, arr[i]);
323 lua_rawseti(L, -2, i + 1);
328 case MGOBJ_GENNOTIFY: {
329 std::map<std::string, std::vector<v3s16> >event_map;
330 std::map<std::string, std::vector<v3s16> >::iterator it;
332 mg->gennotify.getEvents(event_map);
335 for (it = event_map.begin(); it != event_map.end(); ++it) {
338 for (size_t j = 0; j != it->second.size(); j++) {
339 push_v3s16(L, it->second[j]);
340 lua_rawseti(L, -2, j + 1);
343 lua_setfield(L, -2, it->first.c_str());
353 int ModApiMapgen::l_get_mapgen_params(lua_State *L)
355 MapgenParams *params = &getServer(L)->getEmergeManager()->params;
359 lua_pushstring(L, params->mg_name.c_str());
360 lua_setfield(L, -2, "mgname");
362 lua_pushinteger(L, params->seed);
363 lua_setfield(L, -2, "seed");
365 lua_pushinteger(L, params->water_level);
366 lua_setfield(L, -2, "water_level");
368 lua_pushinteger(L, params->chunksize);
369 lua_setfield(L, -2, "chunksize");
371 std::string flagstr = writeFlagString(params->flags, flagdesc_mapgen, (u32)-1);
372 lua_pushstring(L, flagstr.c_str());
373 lua_setfield(L, -2, "flags");
378 // set_mapgen_params(params)
379 // set mapgen parameters
380 int ModApiMapgen::l_set_mapgen_params(lua_State *L)
382 if (!lua_istable(L, 1))
385 MapgenParams *params = &getServer(L)->getEmergeManager()->params;
386 u32 flags = 0, flagmask = 0;
388 lua_getfield(L, 1, "mgname");
389 if (lua_isstring(L, -1)) {
390 params->mg_name = lua_tostring(L, -1);
391 delete params->sparams;
392 params->sparams = NULL;
395 lua_getfield(L, 1, "seed");
396 if (lua_isnumber(L, -1))
397 params->seed = lua_tointeger(L, -1);
399 lua_getfield(L, 1, "water_level");
400 if (lua_isnumber(L, -1))
401 params->water_level = lua_tointeger(L, -1);
403 warn_if_field_exists(L, 1, "flagmask",
404 "Deprecated: flags field now includes unset flags.");
405 lua_getfield(L, 1, "flagmask");
406 if (lua_isstring(L, -1))
407 params->flags &= ~readFlagString(lua_tostring(L, -1), flagdesc_mapgen, NULL);
409 if (getflagsfield(L, 1, "flags", flagdesc_mapgen, &flags, &flagmask)) {
410 params->flags &= ~flagmask;
411 params->flags |= flags;
417 // set_noiseparams(name, noiseparams, set_default)
418 // set global config values for noise parameters
419 int ModApiMapgen::l_set_noiseparams(lua_State *L)
421 const char *name = luaL_checkstring(L, 1);
424 if (!read_noiseparams(L, 2, &np))
427 bool set_default = lua_isboolean(L, 3) ? lua_toboolean(L, 3) : true;
429 g_settings->setNoiseParams(name, np, set_default);
434 // set_gen_notify(flags, {deco_id_table})
435 int ModApiMapgen::l_set_gen_notify(lua_State *L)
437 u32 flags = 0, flagmask = 0;
438 EmergeManager *emerge = getServer(L)->getEmergeManager();
440 if (read_flags(L, 1, flagdesc_gennotify, &flags, &flagmask)) {
441 emerge->gen_notify_on &= ~flagmask;
442 emerge->gen_notify_on |= flags;
445 if (lua_istable(L, 2)) {
447 while (lua_next(L, 2)) {
448 if (lua_isnumber(L, -1))
449 emerge->gen_notify_on_deco_ids.insert(lua_tonumber(L, -1));
457 // register_biome({lots of stuff})
458 int ModApiMapgen::l_register_biome(lua_State *L)
461 luaL_checktype(L, index, LUA_TTABLE);
463 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
464 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
466 enum BiomeType biometype = (BiomeType)getenumfield(L, index, "type",
467 es_BiomeTerrainType, BIOME_TYPE_NORMAL);
468 Biome *b = bmgr->create(biometype);
470 b->name = getstringfield_default(L, index, "name", "");
471 b->depth_top = getintfield_default(L, index, "depth_top", 1);
472 b->depth_filler = getintfield_default(L, index, "depth_filler", 2);
473 b->depth_water_top = getintfield_default(L, index, "depth_water_top", 0);
474 b->y_min = getintfield_default(L, index, "y_min", -31000);
475 b->y_max = getintfield_default(L, index, "y_max", 31000);
476 b->heat_point = getfloatfield_default(L, index, "heat_point", 0.f);
477 b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.f);
478 b->flags = 0; //reserved
480 u32 id = bmgr->add(b);
486 NodeResolveInfo *nri = new NodeResolveInfo(b);
487 std::list<std::string> &nnames = nri->nodenames;
488 nnames.push_back(getstringfield_default(L, index, "node_top", ""));
489 nnames.push_back(getstringfield_default(L, index, "node_filler", ""));
490 nnames.push_back(getstringfield_default(L, index, "node_stone", ""));
491 nnames.push_back(getstringfield_default(L, index, "node_water_top", ""));
492 nnames.push_back(getstringfield_default(L, index, "node_water", ""));
493 nnames.push_back(getstringfield_default(L, index, "node_dust", ""));
494 ndef->pendNodeResolve(nri);
496 verbosestream << "register_biome: " << b->name << std::endl;
497 lua_pushinteger(L, id);
501 // register_decoration({lots of stuff})
502 int ModApiMapgen::l_register_decoration(lua_State *L)
505 luaL_checktype(L, index, LUA_TTABLE);
507 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
508 DecorationManager *decomgr = getServer(L)->getEmergeManager()->decomgr;
509 BiomeManager *biomemgr = getServer(L)->getEmergeManager()->biomemgr;
510 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
512 enum DecorationType decotype = (DecorationType)getenumfield(L, index,
513 "deco_type", es_DecorationType, -1);
515 Decoration *deco = decomgr->create(decotype);
517 errorstream << "register_decoration: decoration placement type "
518 << decotype << " not implemented";
522 deco->name = getstringfield_default(L, index, "name", "");
523 deco->fill_ratio = getfloatfield_default(L, index, "fill_ratio", 0.02);
524 deco->y_min = getintfield_default(L, index, "y_min", -31000);
525 deco->y_max = getintfield_default(L, index, "y_max", 31000);
526 deco->sidelen = getintfield_default(L, index, "sidelen", 8);
527 if (deco->sidelen <= 0) {
528 errorstream << "register_decoration: sidelen must be "
529 "greater than 0" << std::endl;
534 NodeResolveInfo *nri = new NodeResolveInfo(deco);
536 //// Get node name(s) to place decoration on
537 std::vector<const char *> place_on_names;
538 getstringlistfield(L, index, "place_on", place_on_names);
539 nri->nodelistinfo.push_back(NodeListInfo(place_on_names.size()));
540 for (size_t i = 0; i != place_on_names.size(); i++)
541 nri->nodenames.push_back(place_on_names[i]);
543 getflagsfield(L, index, "flags", flagdesc_deco, &deco->flags, NULL);
545 //// Get NoiseParams to define how decoration is placed
546 lua_getfield(L, index, "noise_params");
547 if (read_noiseparams(L, -1, &deco->np))
548 deco->flags |= DECO_USE_NOISE;
551 //// Get biomes associated with this decoration (if any)
552 std::vector<const char *> biome_list;
553 getstringlistfield(L, index, "biomes", biome_list);
554 for (size_t i = 0; i != biome_list.size(); i++) {
555 Biome *b = (Biome *)biomemgr->getByName(biome_list[i]);
559 deco->biomes.insert(b->id);
562 //// Handle decoration type-specific parameters
563 bool success = false;
566 success = regDecoSimple(L, nri, (DecoSimple *)deco);
569 success = regDecoSchematic(L, schemmgr, (DecoSchematic *)deco);
575 ndef->pendNodeResolve(nri);
582 u32 id = decomgr->add(deco);
588 verbosestream << "register_decoration: " << deco->name << std::endl;
589 lua_pushinteger(L, id);
593 bool ModApiMapgen::regDecoSimple(lua_State *L,
594 NodeResolveInfo *nri, DecoSimple *deco)
598 deco->deco_height = getintfield_default(L, index, "height", 1);
599 deco->deco_height_max = getintfield_default(L, index, "height_max", 0);
600 deco->nspawnby = getintfield_default(L, index, "num_spawn_by", -1);
602 if (deco->deco_height <= 0) {
603 errorstream << "register_decoration: simple decoration height"
604 " must be greater than 0" << std::endl;
608 std::vector<const char *> deco_names;
609 getstringlistfield(L, index, "decoration", deco_names);
610 if (deco_names.size() == 0) {
611 errorstream << "register_decoration: no decoration nodes "
612 "defined" << std::endl;
615 nri->nodelistinfo.push_back(NodeListInfo(deco_names.size()));
616 for (size_t i = 0; i != deco_names.size(); i++)
617 nri->nodenames.push_back(deco_names[i]);
619 std::vector<const char *> spawnby_names;
620 getstringlistfield(L, index, "spawn_by", spawnby_names);
621 if (deco->nspawnby != -1 && spawnby_names.size() == 0) {
622 errorstream << "register_decoration: no spawn_by nodes defined,"
623 " but num_spawn_by specified" << std::endl;
626 nri->nodelistinfo.push_back(NodeListInfo(spawnby_names.size()));
627 for (size_t i = 0; i != spawnby_names.size(); i++)
628 nri->nodenames.push_back(spawnby_names[i]);
633 bool ModApiMapgen::regDecoSchematic(lua_State *L,
634 SchematicManager *schemmgr, DecoSchematic *deco)
638 deco->rotation = (Rotation)getenumfield(L, index, "rotation",
639 es_Rotation, ROTATE_0);
641 std::map<std::string, std::string> replace_names;
642 lua_getfield(L, index, "replacements");
643 if (lua_istable(L, -1))
644 read_schematic_replacements(L, replace_names, lua_gettop(L));
647 lua_getfield(L, index, "schematic");
648 Schematic *schem = get_schematic(L, -1, schemmgr, replace_names);
651 deco->schematic = schem;
652 return schem != NULL;
655 // register_ore({lots of stuff})
656 int ModApiMapgen::l_register_ore(lua_State *L)
659 luaL_checktype(L, index, LUA_TTABLE);
661 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
662 OreManager *oremgr = getServer(L)->getEmergeManager()->oremgr;
664 enum OreType oretype = (OreType)getenumfield(L, index,
665 "ore_type", es_OreType, ORE_TYPE_SCATTER);
666 Ore *ore = oremgr->create(oretype);
668 errorstream << "register_ore: ore_type " << oretype << " not implemented";
672 ore->name = getstringfield_default(L, index, "name", "");
673 ore->ore_param2 = (u8)getintfield_default(L, index, "ore_param2", 0);
674 ore->clust_scarcity = getintfield_default(L, index, "clust_scarcity", 1);
675 ore->clust_num_ores = getintfield_default(L, index, "clust_num_ores", 1);
676 ore->clust_size = getintfield_default(L, index, "clust_size", 0);
677 ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0);
681 warn_if_field_exists(L, index, "height_min",
682 "Deprecated: new name is \"y_min\".");
683 warn_if_field_exists(L, index, "height_max",
684 "Deprecated: new name is \"y_max\".");
687 if (!getintfield(L, index, "y_min", ymin) &&
688 !getintfield(L, index, "height_min", ymin))
690 if (!getintfield(L, index, "y_max", ymax) &&
691 !getintfield(L, index, "height_max", ymax))
696 if (ore->clust_scarcity <= 0 || ore->clust_num_ores <= 0) {
697 errorstream << "register_ore: clust_scarcity and clust_num_ores"
698 "must be greater than 0" << std::endl;
703 getflagsfield(L, index, "flags", flagdesc_ore, &ore->flags, NULL);
705 lua_getfield(L, index, "noise_params");
706 if (read_noiseparams(L, -1, &ore->np)) {
707 ore->flags |= OREFLAG_USE_NOISE;
708 } else if (ore->NEEDS_NOISE) {
709 errorstream << "register_ore: specified ore type requires valid "
710 "noise parameters" << std::endl;
716 if (oretype == ORE_TYPE_VEIN) {
717 OreVein *orevein = (OreVein *)ore;
718 orevein->random_factor = getfloatfield_default(L, index,
719 "random_factor", 1.f);
722 u32 id = oremgr->add(ore);
728 NodeResolveInfo *nri = new NodeResolveInfo(ore);
729 nri->nodenames.push_back(getstringfield_default(L, index, "ore", ""));
731 std::vector<const char *> wherein_names;
732 getstringlistfield(L, index, "wherein", wherein_names);
733 nri->nodelistinfo.push_back(NodeListInfo(wherein_names.size()));
734 for (size_t i = 0; i != wherein_names.size(); i++)
735 nri->nodenames.push_back(wherein_names[i]);
737 ndef->pendNodeResolve(nri);
739 verbosestream << "register_ore: " << ore->name << std::endl;
740 lua_pushinteger(L, id);
744 // register_schematic({schematic}, replacements={})
745 int ModApiMapgen::l_register_schematic(lua_State *L)
747 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
749 std::map<std::string, std::string> replace_names;
750 if (lua_istable(L, 2))
751 read_schematic_replacements(L, replace_names, 2);
753 Schematic *schem = get_schematic(L, 1, schemmgr, replace_names);
756 printf("register_schematic!\n");
757 verbosestream << "register_schematic: " << schem->name << std::endl;
758 lua_pushinteger(L, schem->id);
762 // clear_registered_biomes()
763 int ModApiMapgen::l_clear_registered_biomes(lua_State *L)
765 BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
770 // clear_registered_decorations()
771 int ModApiMapgen::l_clear_registered_decorations(lua_State *L)
773 DecorationManager *dmgr = getServer(L)->getEmergeManager()->decomgr;
778 // clear_registered_ores()
779 int ModApiMapgen::l_clear_registered_ores(lua_State *L)
781 OreManager *omgr = getServer(L)->getEmergeManager()->oremgr;
786 // clear_registered_schematics()
787 int ModApiMapgen::l_clear_registered_schematics(lua_State *L)
789 SchematicManager *smgr = getServer(L)->getEmergeManager()->schemmgr;
794 // generate_ores(vm, p1, p2, [ore_id])
795 int ModApiMapgen::l_generate_ores(lua_State *L)
797 EmergeManager *emerge = getServer(L)->getEmergeManager();
800 mg.seed = emerge->params.seed;
801 mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
802 mg.ndef = getServer(L)->getNodeDefManager();
804 v3s16 pmin = lua_istable(L, 2) ? read_v3s16(L, 2) :
805 mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
806 v3s16 pmax = lua_istable(L, 3) ? read_v3s16(L, 3) :
807 mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
808 sortBoxVerticies(pmin, pmax);
810 u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
812 emerge->oremgr->placeAllOres(&mg, blockseed, pmin, pmax);
817 // generate_decorations(vm, p1, p2, [deco_id])
818 int ModApiMapgen::l_generate_decorations(lua_State *L)
820 EmergeManager *emerge = getServer(L)->getEmergeManager();
823 mg.seed = emerge->params.seed;
824 mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
825 mg.ndef = getServer(L)->getNodeDefManager();
827 v3s16 pmin = lua_istable(L, 2) ? read_v3s16(L, 2) :
828 mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
829 v3s16 pmax = lua_istable(L, 3) ? read_v3s16(L, 3) :
830 mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
831 sortBoxVerticies(pmin, pmax);
833 u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
835 emerge->decomgr->placeAllDecos(&mg, blockseed, pmin, pmax);
840 // create_schematic(p1, p2, probability_list, filename)
841 int ModApiMapgen::l_create_schematic(lua_State *L)
845 Map *map = &(getEnv(L)->getMap());
846 INodeDefManager *ndef = getServer(L)->getNodeDefManager();
848 v3s16 p1 = read_v3s16(L, 1);
849 v3s16 p2 = read_v3s16(L, 2);
850 sortBoxVerticies(p1, p2);
852 std::vector<std::pair<v3s16, u8> > prob_list;
853 if (lua_istable(L, 3)) {
855 while (lua_next(L, 3)) {
856 if (lua_istable(L, -1)) {
857 lua_getfield(L, -1, "pos");
858 v3s16 pos = read_v3s16(L, -1);
861 u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
862 prob_list.push_back(std::make_pair(pos, prob));
869 std::vector<std::pair<s16, u8> > slice_prob_list;
870 if (lua_istable(L, 5)) {
872 while (lua_next(L, 5)) {
873 if (lua_istable(L, -1)) {
874 s16 ypos = getintfield_default(L, -1, "ypos", 0);
875 u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
876 slice_prob_list.push_back(std::make_pair(ypos, prob));
883 const char *filename = luaL_checkstring(L, 4);
885 if (!schem.getSchematicFromMap(map, p1, p2)) {
886 errorstream << "create_schematic: failed to get schematic "
887 "from map" << std::endl;
891 schem.applyProbabilities(p1, &prob_list, &slice_prob_list);
893 schem.saveSchematicToFile(filename, ndef);
894 actionstream << "create_schematic: saved schematic file '"
895 << filename << "'." << std::endl;
900 // place_schematic(p, schematic, rotation, replacement)
901 int ModApiMapgen::l_place_schematic(lua_State *L)
903 Map *map = &(getEnv(L)->getMap());
904 SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
907 v3s16 p = read_v3s16(L, 1);
911 if (lua_isstring(L, 3))
912 string_to_enum(es_Rotation, rot, std::string(lua_tostring(L, 3)));
914 //// Read force placement
915 bool force_placement = true;
916 if (lua_isboolean(L, 5))
917 force_placement = lua_toboolean(L, 5);
919 //// Read node replacements
920 std::map<std::string, std::string> replace_names;
921 if (lua_istable(L, 4))
922 read_schematic_replacements(L, replace_names, 4);
925 Schematic *schem = get_schematic(L, 2, schemmgr, replace_names);
927 errorstream << "place_schematic: failed to get schematic" << std::endl;
931 schem->placeStructure(map, p, 0, (Rotation)rot, force_placement,
932 schemmgr->getNodeDef());
937 void ModApiMapgen::Initialize(lua_State *L, int top)
939 API_FCT(get_mapgen_object);
941 API_FCT(get_mapgen_params);
942 API_FCT(set_mapgen_params);
943 API_FCT(set_noiseparams);
944 API_FCT(set_gen_notify);
946 API_FCT(register_biome);
947 API_FCT(register_decoration);
948 API_FCT(register_ore);
949 API_FCT(register_schematic);
951 API_FCT(clear_registered_biomes);
952 API_FCT(clear_registered_decorations);
953 API_FCT(clear_registered_ores);
954 API_FCT(clear_registered_schematics);
956 API_FCT(generate_ores);
957 API_FCT(generate_decorations);
958 API_FCT(create_schematic);
959 API_FCT(place_schematic);