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-rw-r--r--src/script/lua_api/l_mapgen.cpp574
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diff --git a/src/script/lua_api/l_mapgen.cpp b/src/script/lua_api/l_mapgen.cpp
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+++ b/src/script/lua_api/l_mapgen.cpp
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+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "lua_api/l_mapgen.h"
+#include "lua_api/l_internal.h"
+#include "lua_api/l_vmanip.h"
+#include "common/c_converter.h"
+#include "common/c_content.h"
+#include "server.h"
+#include "environment.h"
+#include "biome.h"
+#include "emerge.h"
+#include "mapgen_v7.h"
+
+
+struct EnumString ModApiMapgen::es_BiomeTerrainType[] =
+{
+ {BIOME_TERRAIN_NORMAL, "normal"},
+ {BIOME_TERRAIN_LIQUID, "liquid"},
+ {BIOME_TERRAIN_NETHER, "nether"},
+ {BIOME_TERRAIN_AETHER, "aether"},
+ {BIOME_TERRAIN_FLAT, "flat"},
+ {0, NULL},
+};
+
+struct EnumString ModApiMapgen::es_DecorationType[] =
+{
+ {DECO_SIMPLE, "simple"},
+ {DECO_SCHEMATIC, "schematic"},
+ {DECO_LSYSTEM, "lsystem"},
+ {0, NULL},
+};
+
+struct EnumString ModApiMapgen::es_MapgenObject[] =
+{
+ {MGOBJ_VMANIP, "voxelmanip"},
+ {MGOBJ_HEIGHTMAP, "heightmap"},
+ {MGOBJ_BIOMEMAP, "biomemap"},
+ {MGOBJ_HEATMAP, "heatmap"},
+ {MGOBJ_HUMIDMAP, "humiditymap"},
+ {0, NULL},
+};
+
+struct EnumString ModApiMapgen::es_OreType[] =
+{
+ {ORE_SCATTER, "scatter"},
+ {ORE_SHEET, "sheet"},
+ {ORE_CLAYLIKE, "claylike"},
+ {0, NULL},
+};
+
+struct EnumString ModApiMapgen::es_Rotation[] =
+{
+ {ROTATE_0, "0"},
+ {ROTATE_90, "90"},
+ {ROTATE_180, "180"},
+ {ROTATE_270, "270"},
+ {ROTATE_RAND, "random"},
+ {0, NULL},
+};
+
+
+// minetest.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;
+
+ int nargs = 1;
+
+ switch (mgobj) {
+ case MGOBJ_VMANIP: {
+ ManualMapVoxelManipulator *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);
+
+ nargs = 3;
+
+ break; }
+ 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);
+ }
+ break; }
+ 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);
+ }
+ break; }
+ case MGOBJ_HEATMAP: { // Mapgen V7 specific objects
+ case MGOBJ_HUMIDMAP:
+ if (strcmp(emerge->params->mg_name.c_str(), "v7"))
+ return 0;
+
+ MapgenV7 *mgv7 = (MapgenV7 *)mg;
+
+ float *arr = (mgobj == MGOBJ_HEATMAP) ?
+ mgv7->noise_heat->result : mgv7->noise_humidity->result;
+ if (!arr)
+ return 0;
+
+ lua_newtable(L);
+ for (size_t i = 0; i != maplen; i++) {
+ lua_pushnumber(L, arr[i]);
+ lua_rawseti(L, -2, i + 1);
+ }
+ break; }
+ }
+
+ return nargs;
+}
+
+// minetest.set_mapgen_params(params)
+// set mapgen parameters
+int ModApiMapgen::l_set_mapgen_params(lua_State *L)
+{
+ if (!lua_istable(L, 1))
+ return 0;
+
+ EmergeManager *emerge = getServer(L)->getEmergeManager();
+ if (emerge->mapgen.size())
+ return 0;
+
+ MapgenParams *oparams = new MapgenParams;
+ u32 paramsmodified = 0;
+ u32 flagmask = 0;
+
+ lua_getfield(L, 1, "mgname");
+ if (lua_isstring(L, -1)) {
+ oparams->mg_name = std::string(lua_tostring(L, -1));
+ paramsmodified |= MGPARAMS_SET_MGNAME;
+ }
+
+ lua_getfield(L, 1, "seed");
+ if (lua_isnumber(L, -1)) {
+ oparams->seed = lua_tointeger(L, -1);
+ paramsmodified |= MGPARAMS_SET_SEED;
+ }
+
+ lua_getfield(L, 1, "water_level");
+ if (lua_isnumber(L, -1)) {
+ oparams->water_level = lua_tointeger(L, -1);
+ paramsmodified |= MGPARAMS_SET_WATER_LEVEL;
+ }
+
+ lua_getfield(L, 1, "flags");
+ if (lua_isstring(L, -1)) {
+ std::string flagstr = std::string(lua_tostring(L, -1));
+ oparams->flags = readFlagString(flagstr, flagdesc_mapgen);
+ paramsmodified |= MGPARAMS_SET_FLAGS;
+
+ lua_getfield(L, 1, "flagmask");
+ if (lua_isstring(L, -1)) {
+ flagstr = std::string(lua_tostring(L, -1));
+ flagmask = readFlagString(flagstr, flagdesc_mapgen);
+ }
+ }
+
+ emerge->luaoverride_params = oparams;
+ emerge->luaoverride_params_modified = paramsmodified;
+ emerge->luaoverride_flagmask = flagmask;
+
+ return 0;
+}
+
+// register_biome({lots of stuff})
+int ModApiMapgen::l_register_biome(lua_State *L)
+{
+ int index = 1;
+ luaL_checktype(L, index, LUA_TTABLE);
+
+ BiomeDefManager *bmgr = getServer(L)->getEmergeManager()->biomedef;
+ if (!bmgr) {
+ verbosestream << "register_biome: BiomeDefManager not active" << std::endl;
+ return 0;
+ }
+
+ enum BiomeTerrainType terrain = (BiomeTerrainType)getenumfield(L, index,
+ "terrain_type", es_BiomeTerrainType, BIOME_TERRAIN_NORMAL);
+ Biome *b = bmgr->createBiome(terrain);
+
+ b->name = getstringfield_default(L, index, "name",
+ "<no name>");
+ b->nname_top = getstringfield_default(L, index, "node_top",
+ "mapgen_dirt_with_grass");
+ b->nname_filler = getstringfield_default(L, index, "node_filler",
+ "mapgen_dirt");
+ b->nname_water = getstringfield_default(L, index, "node_water",
+ "mapgen_water_source");
+ b->nname_dust = getstringfield_default(L, index, "node_dust",
+ "air");
+ b->nname_dust_water = getstringfield_default(L, index, "node_dust_water",
+ "mapgen_water_source");
+
+ b->depth_top = getintfield_default(L, index, "depth_top", 1);
+ b->depth_filler = getintfield_default(L, index, "depth_filler", 3);
+ b->height_min = getintfield_default(L, index, "height_min", 0);
+ b->height_max = getintfield_default(L, index, "height_max", 0);
+ b->heat_point = getfloatfield_default(L, index, "heat_point", 0.);
+ b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.);
+
+ b->flags = 0; //reserved
+ b->c_top = CONTENT_IGNORE;
+ b->c_filler = CONTENT_IGNORE;
+ b->c_water = CONTENT_IGNORE;
+ b->c_dust = CONTENT_IGNORE;
+ b->c_dust_water = CONTENT_IGNORE;
+
+ verbosestream << "register_biome: " << b->name << std::endl;
+ bmgr->addBiome(b);
+
+ return 0;
+}
+
+// register_decoration({lots of stuff})
+int ModApiMapgen::l_register_decoration(lua_State *L)
+{
+ int index = 1;
+ luaL_checktype(L, index, LUA_TTABLE);
+
+ EmergeManager *emerge = getServer(L)->getEmergeManager();
+ BiomeDefManager *bdef = emerge->biomedef;
+
+ enum DecorationType decotype = (DecorationType)getenumfield(L, index,
+ "deco_type", es_DecorationType, -1);
+ if (decotype == -1) {
+ errorstream << "register_decoration: unrecognized "
+ "decoration placement type";
+ return 0;
+ }
+
+ Decoration *deco = createDecoration(decotype);
+ if (!deco) {
+ errorstream << "register_decoration: decoration placement type "
+ << decotype << " not implemented";
+ return 0;
+ }
+
+ deco->c_place_on = CONTENT_IGNORE;
+ deco->place_on_name = getstringfield_default(L, index, "place_on", "ignore");
+ deco->fill_ratio = getfloatfield_default(L, index, "fill_ratio", 0.02);
+ 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;
+ }
+
+ lua_getfield(L, index, "noise_params");
+ deco->np = read_noiseparams(L, -1);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "biomes");
+ if (lua_istable(L, -1)) {
+ lua_pushnil(L);
+ while (lua_next(L, -2)) {
+ const char *s = lua_tostring(L, -1);
+ u8 biomeid = bdef->getBiomeIdByName(s);
+ if (biomeid)
+ deco->biomes.insert(biomeid);
+
+ lua_pop(L, 1);
+ }
+ lua_pop(L, 1);
+ }
+
+ switch (decotype) {
+ case DECO_SIMPLE: {
+ DecoSimple *dsimple = (DecoSimple *)deco;
+ dsimple->c_deco = CONTENT_IGNORE;
+ dsimple->c_spawnby = CONTENT_IGNORE;
+ dsimple->spawnby_name = getstringfield_default(L, index, "spawn_by", "air");
+ dsimple->deco_height = getintfield_default(L, index, "height", 1);
+ dsimple->deco_height_max = getintfield_default(L, index, "height_max", 0);
+ dsimple->nspawnby = getintfield_default(L, index, "num_spawn_by", -1);
+
+ lua_getfield(L, index, "decoration");
+ if (lua_istable(L, -1)) {
+ lua_pushnil(L);
+ while (lua_next(L, -2)) {
+ const char *s = lua_tostring(L, -1);
+ std::string str(s);
+ dsimple->decolist_names.push_back(str);
+
+ lua_pop(L, 1);
+ }
+ } else if (lua_isstring(L, -1)) {
+ dsimple->deco_name = std::string(lua_tostring(L, -1));
+ } else {
+ dsimple->deco_name = std::string("air");
+ }
+ lua_pop(L, 1);
+
+ if (dsimple->deco_height <= 0) {
+ errorstream << "register_decoration: simple decoration height"
+ " must be greater than 0" << std::endl;
+ delete dsimple;
+ return 0;
+ }
+
+ break; }
+ case DECO_SCHEMATIC: {
+ DecoSchematic *dschem = (DecoSchematic *)deco;
+ dschem->flags = getflagsfield(L, index, "flags", flagdesc_deco_schematic);
+ dschem->rotation = (Rotation)getenumfield(L, index,
+ "rotation", es_Rotation, ROTATE_0);
+
+ lua_getfield(L, index, "replacements");
+ if (lua_istable(L, -1)) {
+ int i = lua_gettop(L);
+ lua_pushnil(L);
+ while (lua_next(L, i) != 0) {
+ // key at index -2 and value at index -1
+ lua_rawgeti(L, -1, 1);
+ std::string replace_from = lua_tostring(L, -1);
+ lua_pop(L, 1);
+ lua_rawgeti(L, -1, 2);
+ std::string replace_to = lua_tostring(L, -1);
+ lua_pop(L, 1);
+ dschem->replacements[replace_from] = replace_to;
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "schematic");
+ if (!read_schematic(L, -1, dschem, getServer(L))) {
+ delete dschem;
+ return 0;
+ }
+ lua_pop(L, -1);
+
+ if (!dschem->filename.empty() && !dschem->loadSchematicFile()) {
+ errorstream << "register_decoration: failed to load schematic file '"
+ << dschem->filename << "'" << std::endl;
+ delete dschem;
+ return 0;
+ }
+ break; }
+ case DECO_LSYSTEM: {
+ //DecoLSystem *decolsystem = (DecoLSystem *)deco;
+
+ break; }
+ }
+
+ emerge->decorations.push_back(deco);
+
+ verbosestream << "register_decoration: decoration '" << deco->getName()
+ << "' registered" << std::endl;
+ return 0;
+}
+
+// register_ore({lots of stuff})
+int ModApiMapgen::l_register_ore(lua_State *L)
+{
+ int index = 1;
+ luaL_checktype(L, index, LUA_TTABLE);
+
+ EmergeManager *emerge = getServer(L)->getEmergeManager();
+
+ enum OreType oretype = (OreType)getenumfield(L, index,
+ "ore_type", es_OreType, ORE_SCATTER);
+ Ore *ore = createOre(oretype);
+ if (!ore) {
+ errorstream << "register_ore: ore_type "
+ << oretype << " not implemented";
+ return 0;
+ }
+
+ ore->ore_name = getstringfield_default(L, index, "ore", "");
+ 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->height_min = getintfield_default(L, index, "height_min", 0);
+ ore->height_max = getintfield_default(L, index, "height_max", 0);
+ ore->flags = getflagsfield(L, index, "flags", flagdesc_ore);
+ ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0.);
+
+ lua_getfield(L, index, "wherein");
+ if (lua_istable(L, -1)) {
+ int i = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, i) != 0) {
+ ore->wherein_names.push_back(lua_tostring(L, -1));
+ lua_pop(L, 1);
+ }
+ } else if (lua_isstring(L, -1)) {
+ ore->wherein_names.push_back(lua_tostring(L, -1));
+ } else {
+ ore->wherein_names.push_back("");
+ }
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "noise_params");
+ ore->np = read_noiseparams(L, -1);
+ lua_pop(L, 1);
+
+ ore->noise = NULL;
+
+ 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;
+ }
+
+ emerge->ores.push_back(ore);
+
+ verbosestream << "register_ore: ore '" << ore->ore_name
+ << "' registered" << std::endl;
+ return 0;
+}
+
+// create_schematic(p1, p2, probability_list, filename)
+int ModApiMapgen::l_create_schematic(lua_State *L)
+{
+ DecoSchematic dschem;
+
+ Map *map = &(getEnv(L)->getMap());
+ INodeDefManager *ndef = getServer(L)->getNodeDefManager();
+
+ v3s16 p1 = read_v3s16(L, 1);
+ v3s16 p2 = read_v3s16(L, 2);
+ sortBoxVerticies(p1, p2);
+
+ std::vector<std::pair<v3s16, u8> > probability_list;
+ if (lua_istable(L, 3)) {
+ lua_pushnil(L);
+ while (lua_next(L, 3)) {
+ if (lua_istable(L, -1)) {
+ lua_getfield(L, -1, "pos");
+ v3s16 pos = read_v3s16(L, -1);
+ lua_pop(L, 1);
+
+ u8 prob = getintfield_default(L, -1, "prob", 0xFF);
+ probability_list.push_back(std::make_pair(pos, prob));
+ }
+
+ lua_pop(L, 1);
+ }
+ }
+
+ dschem.filename = std::string(lua_tostring(L, 4));
+
+ if (!dschem.getSchematicFromMap(map, p1, p2)) {
+ errorstream << "create_schematic: failed to get schematic "
+ "from map" << std::endl;
+ return 0;
+ }
+
+ dschem.applyProbabilities(&probability_list, p1);
+
+ dschem.saveSchematicFile(ndef);
+ actionstream << "create_schematic: saved schematic file '"
+ << dschem.filename << "'." << std::endl;
+
+ return 1;
+}
+
+
+// place_schematic(p, schematic, rotation, replacement)
+int ModApiMapgen::l_place_schematic(lua_State *L)
+{
+ DecoSchematic dschem;
+
+ Map *map = &(getEnv(L)->getMap());
+ INodeDefManager *ndef = getServer(L)->getNodeDefManager();
+
+ v3s16 p = read_v3s16(L, 1);
+ if (!read_schematic(L, 2, &dschem, getServer(L)))
+ return 0;
+
+ Rotation rot = ROTATE_0;
+ if (lua_isstring(L, 3))
+ string_to_enum(es_Rotation, (int &)rot, std::string(lua_tostring(L, 3)));
+
+ dschem.rotation = rot;
+
+ if (lua_istable(L, 4)) {
+ int index = 4;
+ lua_pushnil(L);
+ while (lua_next(L, index) != 0) {
+ // key at index -2 and value at index -1
+ lua_rawgeti(L, -1, 1);
+ std::string replace_from = lua_tostring(L, -1);
+ lua_pop(L, 1);
+ lua_rawgeti(L, -1, 2);
+ std::string replace_to = lua_tostring(L, -1);
+ lua_pop(L, 1);
+ dschem.replacements[replace_from] = replace_to;
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+
+ if (!dschem.filename.empty()) {
+ if (!dschem.loadSchematicFile()) {
+ errorstream << "place_schematic: failed to load schematic file '"
+ << dschem.filename << "'" << std::endl;
+ return 0;
+ }
+ dschem.resolveNodeNames(ndef);
+ }
+
+ dschem.placeStructure(map, p);
+
+ return 1;
+}
+
+void ModApiMapgen::Initialize(lua_State *L, int top)
+{
+ API_FCT(get_mapgen_object);
+
+ API_FCT(set_mapgen_params);
+
+ API_FCT(register_biome);
+ API_FCT(register_decoration);
+ API_FCT(register_ore);
+
+ API_FCT(create_schematic);
+ API_FCT(place_schematic);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 03:22:27 +0000