minetest/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 "util/serialize.h"
#include "server.h"
#include "environment.h"
#include "emerge.h"
2014-11-01 18:16:23 +01:00
#include "mg_biome.h"
#include "mg_ore.h"
#include "mg_decoration.h"
#include "mg_schematic.h"
#include "mapgen_v5.h"
#include "mapgen_v7.h"
#include "filesys.h"
#include "settings.h"
#include "log.h"
struct EnumString ModApiMapgen::es_BiomeTerrainType[] =
{
{BIOME_NORMAL, "normal"},
{BIOME_LIQUID, "liquid"},
{BIOME_NETHER, "nether"},
{BIOME_AETHER, "aether"},
{BIOME_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"},
{MGOBJ_GENNOTIFY, "gennotify"},
{0, NULL},
};
struct EnumString ModApiMapgen::es_OreType[] =
{
{ORE_SCATTER, "scatter"},
{ORE_SHEET, "sheet"},
{ORE_BLOB, "blob"},
{ORE_VEIN, "vein"},
{0, NULL},
};
struct EnumString ModApiMapgen::es_Rotation[] =
{
{ROTATE_0, "0"},
{ROTATE_90, "90"},
{ROTATE_180, "180"},
{ROTATE_270, "270"},
{ROTATE_RAND, "random"},
{0, NULL},
};
ObjDef *get_objdef(lua_State *L, int index, ObjDefManager *objmgr);
Biome *get_or_load_biome(lua_State *L, int index,
BiomeManager *biomemgr);
Biome *read_biome_def(lua_State *L, int index, INodeDefManager *ndef);
size_t get_biome_list(lua_State *L, int index,
BiomeManager *biomemgr, std::set<u8> *biome_id_list);
Schematic *get_or_load_schematic(lua_State *L, int index,
SchematicManager *schemmgr, StringMap *replace_names);
Schematic *read_schematic_def(lua_State *L, int index,
INodeDefManager *ndef, StringMap *replace_names);
Schematic *load_schematic(lua_State *L, int index,
SchematicManager *schemmgr, StringMap *replace_names);
bool read_deco_simple(lua_State *L, NodeResolveInfo *nri, DecoSimple *deco);
bool read_deco_schematic(lua_State *L, SchematicManager *schemmgr, DecoSchematic *deco);
///////////////////////////////////////////////////////////////////////////////
ObjDef *get_objdef(lua_State *L, int index, ObjDefManager *objmgr)
{
if (index < 0)
index = lua_gettop(L) + 1 + index;
// If a number, assume this is a handle to an object def
if (lua_isnumber(L, index))
return objmgr->get(lua_tointeger(L, index));
// If a string, assume a name is given instead
if (lua_isstring(L, index))
return objmgr->getByName(lua_tostring(L, index));
return NULL;
}
Schematic *load_schematic(lua_State *L, int index,
SchematicManager *schemmgr, StringMap *replace_names)
{
if (index < 0)
index = lua_gettop(L) + 1 + index;
Schematic *schem;
if (lua_istable(L, index)) {
schem = read_schematic_def(L, index, schemmgr->getNodeDef(), replace_names);
if (!schem) {
delete schem;
return NULL;
}
} else if (lua_isnumber(L, index)) {
return NULL;
} else if (lua_isstring(L, index)) {
schem = SchematicManager::create(SCHEMATIC_NORMAL);
std::string filepath = lua_tostring(L, index);
if (!fs::IsPathAbsolute(filepath))
filepath = ModApiBase::getCurrentModPath(L) + DIR_DELIM + filepath;
if (!schem->loadSchematicFromFile(filepath.c_str(),
schemmgr->getNodeDef(), replace_names)) {
delete schem;
return NULL;
}
} else {
return NULL;
}
return schem;
}
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
NodeResolveInfo *nri = new NodeResolveInfo(b);
std::list<std::string> &nnames = nri->nodenames;
nnames.push_back(getstringfield_default(L, index, "node_top", ""));
nnames.push_back(getstringfield_default(L, index, "node_filler", ""));
nnames.push_back(getstringfield_default(L, index, "node_stone", ""));
nnames.push_back(getstringfield_default(L, index, "node_water_top", ""));
nnames.push_back(getstringfield_default(L, index, "node_water", ""));
nnames.push_back(getstringfield_default(L, index, "node_dust", ""));
ndef->pendNodeResolve(nri);
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" << 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 load biome (index "
<< count << ")" << std::endl;
continue;
}
biome_id_list->insert(biome->index);
}
return fail_count;
}
Schematic *get_or_load_schematic(lua_State *L, int index,
SchematicManager *schemmgr, StringMap *replace_names)
{
if (index < 0)
index = lua_gettop(L) + 1 + index;
Schematic *schem = (Schematic *)get_objdef(L, index, schemmgr);
if (schem)
return schem;
schem = load_schematic(L, index, schemmgr, replace_names);
if (!schem)
return NULL;
if (schemmgr->add(schem) == OBJDEF_INVALID_HANDLE) {
delete schem;
return NULL;
}
return schem;
}
Schematic *read_schematic_def(lua_State *L, int index,
INodeDefManager *ndef, StringMap *replace_names)
{
if (!lua_istable(L, index))
return NULL;
//// Get schematic size
lua_getfield(L, index, "size");
v3s16 size = read_v3s16(L, -1);
lua_pop(L, 1);
//// Get schematic data
lua_getfield(L, index, "data");
luaL_checktype(L, -1, LUA_TTABLE);
int numnodes = size.X * size.Y * size.Z;
MapNode *schemdata = new MapNode[numnodes];
int i = 0;
lua_pushnil(L);
while (lua_next(L, -2)) {
if (i >= numnodes) {
i++;
lua_pop(L, 1);
continue;
}
// same as readnode, except param1 default is MTSCHEM_PROB_CONST
lua_getfield(L, -1, "name");
std::string name = luaL_checkstring(L, -1);
lua_pop(L, 1);
u8 param1;
lua_getfield(L, -1, "param1");
param1 = !lua_isnil(L, -1) ? lua_tonumber(L, -1) : MTSCHEM_PROB_ALWAYS;
lua_pop(L, 1);
u8 param2;
lua_getfield(L, -1, "param2");
param2 = !lua_isnil(L, -1) ? lua_tonumber(L, -1) : 0;
lua_pop(L, 1);
StringMap::iterator it = replace_names->find(name);
if (it != replace_names->end())
name = it->second;
schemdata[i] = MapNode(ndef, name, param1, param2);
i++;
lua_pop(L, 1);
}
if (i != numnodes) {
errorstream << "read_schematic: incorrect number of "
"nodes provided in raw schematic data (got " << i <<
", expected " << numnodes << ")." << std::endl;
delete schemdata;
return NULL;
}
//// Get Y-slice probability values (if present)
u8 *slice_probs = new u8[size.Y];
for (i = 0; i != size.Y; i++)
slice_probs[i] = MTSCHEM_PROB_ALWAYS;
lua_getfield(L, index, "yslice_prob");
if (lua_istable(L, -1)) {
lua_pushnil(L);
while (lua_next(L, -2)) {
if (getintfield(L, -1, "ypos", i) && i >= 0 && i < size.Y) {
slice_probs[i] = getintfield_default(L, -1,
"prob", MTSCHEM_PROB_ALWAYS);
}
lua_pop(L, 1);
}
}
Schematic *schem = SchematicManager::create(SCHEMATIC_NORMAL);
// Here, we read the nodes directly from the INodeDefManager - there is no
// need for pending node resolutions so we'll mark this schematic as updated
schem->flags = SCHEM_CIDS_UPDATED;
schem->size = size;
schem->schemdata = schemdata;
schem->slice_probs = slice_probs;
return schem;
}
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);
}
}
///////////////////////////////////////////////////////////////////////////////
2014-04-28 03:02:48 +02:00
// 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: { // 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);
}
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;
}
2014-04-28 03:02:48 +02:00
// 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;
}
// 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;
}
// 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;
}
NodeResolveInfo *nri = new NodeResolveInfo(deco);
//// Get node name(s) to place decoration on
std::vector<const char *> place_on_names;
getstringlistfield(L, index, "place_on", place_on_names);
nri->nodelistinfo.push_back(NodeListInfo(place_on_names.size()));
for (size_t i = 0; i != place_on_names.size(); i++)
nri->nodenames.push_back(place_on_names[i]);
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, nri, (DecoSimple *)deco);
break;
case DECO_SCHEMATIC:
success = read_deco_schematic(L, schemmgr, (DecoSchematic *)deco);
break;
case DECO_LSYSTEM:
break;
}
ndef->pendNodeResolve(nri);
if (!success) {
delete deco;
return 0;
}
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, NodeResolveInfo *nri, DecoSimple *deco)
{
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;
}
std::vector<const char *> deco_names;
getstringlistfield(L, index, "decoration", deco_names);
if (deco_names.size() == 0) {
errorstream << "register_decoration: no decoration nodes "
"defined" << std::endl;
return false;
}
nri->nodelistinfo.push_back(NodeListInfo(deco_names.size()));
for (size_t i = 0; i != deco_names.size(); i++)
nri->nodenames.push_back(deco_names[i]);
std::vector<const char *> spawnby_names;
getstringlistfield(L, index, "spawn_by", spawnby_names);
if (deco->nspawnby != -1 && spawnby_names.size() == 0) {
errorstream << "register_decoration: no spawn_by nodes defined,"
" but num_spawn_by specified" << std::endl;
return false;
}
nri->nodelistinfo.push_back(NodeListInfo(spawnby_names.size()));
for (size_t i = 0; i != spawnby_names.size(); i++)
nri->nodenames.push_back(spawnby_names[i]);
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);
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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();
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;
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;
}
getflagsfield(L, index, "flags", flagdesc_ore, &ore->flags, NULL);
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) {
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OreVein *orevein = (OreVein *)ore;
orevein->random_factor = getfloatfield_default(L, index,
"random_factor", 1.f);
}
ObjDefHandle handle = oremgr->add(ore);
if (handle == OBJDEF_INVALID_HANDLE) {
delete ore;
return 0;
}
NodeResolveInfo *nri = new NodeResolveInfo(ore);
nri->nodenames.push_back(getstringfield_default(L, index, "ore", ""));
std::vector<const char *> wherein_names;
getstringlistfield(L, index, "wherein", wherein_names);
nri->nodelistinfo.push_back(NodeListInfo(wherein_names.size()));
for (size_t i = 0; i != wherein_names.size(); i++)
nri->nodenames.push_back(wherein_names[i]);
ndef->pendNodeResolve(nri);
lua_pushinteger(L, handle);
return 1;
}
// register_schematic({schematic}, replacements={})
int ModApiMapgen::l_register_schematic(lua_State *L)
{
SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
StringMap replace_names;
if (lua_istable(L, 2))
read_schematic_replacements(L, 2, &replace_names);
Schematic *schem = load_schematic(L, 1, schemmgr, &replace_names);
if (!schem)
return 0;
ObjDefHandle handle = schemmgr->add(schem);
if (handle == OBJDEF_INVALID_HANDLE) {
delete schem;
return 0;
}
lua_pushinteger(L, handle);
return 1;
}
// clear_registered_biomes()
int ModApiMapgen::l_clear_registered_biomes(lua_State *L)
{
BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
bmgr->clear();
return 0;
}
// clear_registered_decorations()
int ModApiMapgen::l_clear_registered_decorations(lua_State *L)
{
DecorationManager *dmgr = getServer(L)->getEmergeManager()->decomgr;
dmgr->clear();
return 0;
}
// clear_registered_ores()
int ModApiMapgen::l_clear_registered_ores(lua_State *L)
{
OreManager *omgr = getServer(L)->getEmergeManager()->oremgr;
omgr->clear();
return 0;
}
// clear_registered_schematics()
int ModApiMapgen::l_clear_registered_schematics(lua_State *L)
{
SchematicManager *smgr = getServer(L)->getEmergeManager()->schemmgr;
smgr->clear();
return 0;
}
// generate_ores(vm, p1, p2, [ore_id])
int ModApiMapgen::l_generate_ores(lua_State *L)
{
EmergeManager *emerge = getServer(L)->getEmergeManager();
Mapgen mg;
mg.seed = emerge->params.seed;
mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
mg.ndef = getServer(L)->getNodeDefManager();
v3s16 pmin = lua_istable(L, 2) ? read_v3s16(L, 2) :
mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
v3s16 pmax = lua_istable(L, 3) ? read_v3s16(L, 3) :
mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
sortBoxVerticies(pmin, pmax);
u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
emerge->oremgr->placeAllOres(&mg, blockseed, pmin, pmax);
return 0;
}
// generate_decorations(vm, p1, p2, [deco_id])
int ModApiMapgen::l_generate_decorations(lua_State *L)
{
EmergeManager *emerge = getServer(L)->getEmergeManager();
Mapgen mg;
mg.seed = emerge->params.seed;
mg.vm = LuaVoxelManip::checkobject(L, 1)->vm;
mg.ndef = getServer(L)->getNodeDefManager();
v3s16 pmin = lua_istable(L, 2) ? read_v3s16(L, 2) :
mg.vm->m_area.MinEdge + v3s16(1,1,1) * MAP_BLOCKSIZE;
v3s16 pmax = lua_istable(L, 3) ? read_v3s16(L, 3) :
mg.vm->m_area.MaxEdge - v3s16(1,1,1) * MAP_BLOCKSIZE;
sortBoxVerticies(pmin, pmax);
u32 blockseed = Mapgen::getBlockSeed(pmin, mg.seed);
emerge->decomgr->placeAllDecos(&mg, blockseed, pmin, pmax);
return 0;
}
// create_schematic(p1, p2, probability_list, filename, y_slice_prob_list)
int ModApiMapgen::l_create_schematic(lua_State *L)
{
Schematic schem;
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> > prob_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", MTSCHEM_PROB_ALWAYS);
prob_list.push_back(std::make_pair(pos, prob));
}
lua_pop(L, 1);
}
}
std::vector<std::pair<s16, u8> > slice_prob_list;
if (lua_istable(L, 5)) {
lua_pushnil(L);
while (lua_next(L, 5)) {
if (lua_istable(L, -1)) {
s16 ypos = getintfield_default(L, -1, "ypos", 0);
u8 prob = getintfield_default(L, -1, "prob", MTSCHEM_PROB_ALWAYS);
slice_prob_list.push_back(std::make_pair(ypos, prob));
}
lua_pop(L, 1);
}
}
const char *filename = luaL_checkstring(L, 4);
if (!schem.getSchematicFromMap(map, p1, p2)) {
errorstream << "create_schematic: failed to get schematic "
"from map" << std::endl;
return 0;
}
schem.applyProbabilities(p1, &prob_list, &slice_prob_list);
schem.saveSchematicToFile(filename, ndef);
actionstream << "create_schematic: saved schematic file '"
<< filename << "'." << std::endl;
lua_pushboolean(L, true);
return 1;
}
// place_schematic(p, schematic, rotation, replacement)
int ModApiMapgen::l_place_schematic(lua_State *L)
{
Map *map = &(getEnv(L)->getMap());
SchematicManager *schemmgr = getServer(L)->getEmergeManager()->schemmgr;
//// Read position
v3s16 p = read_v3s16(L, 1);
//// Read rotation
int rot = ROTATE_0;
if (lua_isstring(L, 3))
string_to_enum(es_Rotation, rot, std::string(lua_tostring(L, 3)));
//// Read force placement
bool force_placement = true;
if (lua_isboolean(L, 5))
force_placement = lua_toboolean(L, 5);
//// Read node replacements
StringMap replace_names;
if (lua_istable(L, 4))
read_schematic_replacements(L, 4, &replace_names);
//// Read schematic
Schematic *schem = get_or_load_schematic(L, 2, schemmgr, &replace_names);
if (!schem) {
errorstream << "place_schematic: failed to get schematic" << std::endl;
return 0;
}
schem->placeStructure(map, p, 0, (Rotation)rot, force_placement,
schemmgr->getNodeDef());
lua_pushboolean(L, true);
return 1;
}
void ModApiMapgen::Initialize(lua_State *L, int top)
{
API_FCT(get_mapgen_object);
API_FCT(get_mapgen_params);
API_FCT(set_mapgen_params);
API_FCT(set_noiseparams);
API_FCT(set_gen_notify);
API_FCT(register_biome);
API_FCT(register_decoration);
API_FCT(register_ore);
API_FCT(register_schematic);
API_FCT(clear_registered_biomes);
API_FCT(clear_registered_decorations);
API_FCT(clear_registered_ores);
API_FCT(clear_registered_schematics);
API_FCT(generate_ores);
API_FCT(generate_decorations);
API_FCT(create_schematic);
API_FCT(place_schematic);
}