struct TileAnimationParams read_animation_definition(lua_State *L, int index)
{
if(index < 0)
index = lua_gettop(L) + 1 + index;
struct TileAnimationParams anim;
anim.type = TAT_NONE;
if (!lua_istable(L, index))
return anim;
anim.type = (TileAnimationType)
getenumfield(L, index, "type", es_TileAnimationType,
TAT_NONE);
if (anim.type == TAT_VERTICAL_FRAMES) {
// {type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0}
anim.vertical_frames.aspect_w =
getintfield_default(L, index, "aspect_w", 16);
anim.vertical_frames.aspect_h =
getintfield_default(L, index, "aspect_h", 16);
anim.vertical_frames.length =
getfloatfield_default(L, index, "length", 1.0);
} else if (anim.type == TAT_SHEET_2D) {
// {type="sheet_2d", frames_w=5, frames_h=3, frame_length=0.5}
getintfield(L, index, "frames_w",
anim.sheet_2d.frames_w);
getintfield(L, index, "frames_h",
anim.sheet_2d.frames_h);
getfloatfield(L, index, "frame_length",
anim.sheet_2d.frame_length);
}
return anim;
}
bool read_noiseparams(lua_State *L, int index, NoiseParams *np)
{
if (index < 0)
index = lua_gettop(L) + 1 + index;
if (!lua_istable(L, index))
return false;
getfloatfield(L, index, "offset", np->offset);
getfloatfield(L, index, "scale", np->scale);
getfloatfield(L, index, "persist", np->persist);
getfloatfield(L, index, "persistence", np->persist);
getfloatfield(L, index, "lacunarity", np->lacunarity);
getintfield(L, index, "seed", np->seed);
getintfield(L, index, "octaves", np->octaves);
//freeminer:
getfloatfield(L, index, "farscale", np->farscale);
getfloatfield(L, index, "farspread", np->farspread);
getfloatfield(L, index, "farpersist", np->farpersist);
u32 flags = 0;
u32 flagmask = 0;
np->flags = getflagsfield(L, index, "flags", flagdesc_noiseparams,
&flags, &flagmask) ? flags : NOISE_FLAG_DEFAULTS;
lua_getfield(L, index, "spread");
np->spread = read_v3f(L, -1);
lua_pop(L, 1);
return true;
}
int getintfield_default(lua_State *L, int table,
const char *fieldname, int default_)
{
int result = default_;
getintfield(L, table, fieldname, result);
return result;
}
// spawn_tree(pos, treedef)
int ModApiEnvMod::l_spawn_tree(lua_State *L)
{
GET_ENV_PTR;
v3s16 p0 = read_v3s16(L, 1);
treegen::TreeDef tree_def;
std::string trunk,leaves,fruit;
INodeDefManager *ndef = env->getGameDef()->ndef();
if(lua_istable(L, 2))
{
getstringfield(L, 2, "axiom", tree_def.initial_axiom);
getstringfield(L, 2, "rules_a", tree_def.rules_a);
getstringfield(L, 2, "rules_b", tree_def.rules_b);
getstringfield(L, 2, "rules_c", tree_def.rules_c);
getstringfield(L, 2, "rules_d", tree_def.rules_d);
getstringfield(L, 2, "trunk", trunk);
tree_def.trunknode=ndef->getId(trunk);
getstringfield(L, 2, "leaves", leaves);
tree_def.leavesnode=ndef->getId(leaves);
tree_def.leaves2_chance=0;
getstringfield(L, 2, "leaves2", leaves);
if (leaves !="")
{
tree_def.leaves2node=ndef->getId(leaves);
getintfield(L, 2, "leaves2_chance", tree_def.leaves2_chance);
}
getintfield(L, 2, "angle", tree_def.angle);
getintfield(L, 2, "iterations", tree_def.iterations);
if (!getintfield(L, 2, "random_level", tree_def.iterations_random_level))
tree_def.iterations_random_level = 0;
getstringfield(L, 2, "trunk_type", tree_def.trunk_type);
getboolfield(L, 2, "thin_branches", tree_def.thin_branches);
tree_def.fruit_chance=0;
getstringfield(L, 2, "fruit", fruit);
if (fruit != "")
{
tree_def.fruitnode=ndef->getId(fruit);
getintfield(L, 2, "fruit_chance",tree_def.fruit_chance);
}
tree_def.explicit_seed = getintfield(L, 2, "seed", tree_def.seed);
}
else
return 0;
treegen::error e;
if ((e = treegen::spawn_ltree (env, p0, ndef, tree_def)) != treegen::SUCCESS) {
if (e == treegen::UNBALANCED_BRACKETS) {
luaL_error(L, "spawn_tree(): closing ']' has no matching opening bracket");
} else {
luaL_error(L, "spawn_tree(): unknown error");
}
}
return 1;
}
// spawn_tree(pos, treedef)
int ModApiEnvMod::l_spawn_tree(lua_State *L)
{
GET_ENV_PTR;
v3s16 p0 = read_v3s16(L, 1);
treegen::TreeDef tree_def;
std::string trunk,leaves,fruit;
INodeDefManager *ndef = env->getGameDef()->ndef();
if(lua_istable(L, 2))
{
getstringfield(L, 2, "axiom", tree_def.initial_axiom);
getstringfield(L, 2, "rules_a", tree_def.rules_a);
getstringfield(L, 2, "rules_b", tree_def.rules_b);
getstringfield(L, 2, "rules_c", tree_def.rules_c);
getstringfield(L, 2, "rules_d", tree_def.rules_d);
getstringfield(L, 2, "trunk", trunk);
tree_def.trunknode=ndef->getId(trunk);
getstringfield(L, 2, "leaves", leaves);
tree_def.leavesnode=ndef->getId(leaves);
tree_def.leaves2_chance=0;
getstringfield(L, 2, "leaves2", leaves);
if (leaves !="")
{
tree_def.leaves2node=ndef->getId(leaves);
getintfield(L, 2, "leaves2_chance", tree_def.leaves2_chance);
}
getintfield(L, 2, "angle", tree_def.angle);
getintfield(L, 2, "iterations", tree_def.iterations);
getintfield(L, 2, "random_level", tree_def.iterations_random_level);
getstringfield(L, 2, "trunk_type", tree_def.trunk_type);
getboolfield(L, 2, "thin_branches", tree_def.thin_branches);
tree_def.fruit_chance=0;
getstringfield(L, 2, "fruit", fruit);
if (fruit != "")
{
tree_def.fruitnode=ndef->getId(fruit);
getintfield(L, 2, "fruit_chance",tree_def.fruit_chance);
}
getintfield(L, 2, "seed", tree_def.seed);
}
else
return 0;
treegen::spawn_ltree (env, p0, ndef, tree_def);
return 1;
}
bool read_schematic_def(lua_State *L, int index,
Schematic *schem, std::vector<std::string> *names)
{
if (!lua_istable(L, index))
return false;
//// Get schematic size
lua_getfield(L, index, "size");
v3s16 size = check_v3s16(L, -1);
lua_pop(L, 1);
schem->size = size;
//// Get schematic data
lua_getfield(L, index, "data");
luaL_checktype(L, -1, LUA_TTABLE);
u32 numnodes = size.X * size.Y * size.Z;
schem->schemdata = new MapNode[numnodes];
size_t names_base = names->size();
UNORDERED_MAP<std::string, content_t> name_id_map;
u32 i = 0;
for (lua_pushnil(L); lua_next(L, -2); i++, lua_pop(L, 1)) {
if (i >= numnodes)
continue;
//// Read name
std::string name;
if (!getstringfield(L, -1, "name", name))
throw LuaError("Schematic data definition with missing name field");
//// Read param1/prob
u8 param1;
if (!getintfield(L, -1, "param1", param1) &&
!getintfield(L, -1, "prob", param1))
param1 = MTSCHEM_PROB_ALWAYS_OLD;
//// Read param2
u8 param2 = getintfield_default(L, -1, "param2", 0);
//// Find or add new nodename-to-ID mapping
UNORDERED_MAP<std::string, content_t>::iterator it = name_id_map.find(name);
content_t name_index;
if (it != name_id_map.end()) {
name_index = it->second;
} else {
name_index = names->size() - names_base;
name_id_map[name] = name_index;
names->push_back(name);
}
//// Perform probability/force_place fixup on param1
param1 >>= 1;
if (getboolfield_default(L, -1, "force_place", false))
param1 |= MTSCHEM_FORCE_PLACE;
//// Actually set the node in the schematic
schem->schemdata[i] = MapNode(name_index, param1, param2);
}
if (i != numnodes) {
errorstream << "read_schematic_def: incorrect number of "
"nodes provided in raw schematic data (got " << i <<
", expected " << numnodes << ")." << std::endl;
return false;
}
//// Get Y-slice probability values (if present)
schem->slice_probs = new u8[size.Y];
for (i = 0; i != (u32) size.Y; i++)
schem->slice_probs[i] = MTSCHEM_PROB_ALWAYS;
lua_getfield(L, index, "yslice_prob");
if (lua_istable(L, -1)) {
for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) {
u16 ypos;
if (!getintfield(L, -1, "ypos", ypos) || (ypos >= size.Y) ||
!getintfield(L, -1, "prob", schem->slice_probs[ypos]))
continue;
schem->slice_probs[ypos] >>= 1;
}
}
return true;
}
// register_ore({lots of stuff})
int ModApiMapgen::l_register_ore(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
int index = 1;
luaL_checktype(L, index, LUA_TTABLE);
INodeDefManager *ndef = getServer(L)->getNodeDefManager();
BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;
OreManager *oremgr = getServer(L)->getEmergeManager()->oremgr;
enum OreType oretype = (OreType)getenumfield(L, index,
"ore_type", es_OreType, ORE_SCATTER);
Ore *ore = oremgr->create(oretype);
if (!ore) {
errorstream << "register_ore: ore_type " << oretype << " not implemented\n";
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->noise = NULL;
ore->flags = 0;
//// Get noise_threshold
warn_if_field_exists(L, index, "noise_threshhold",
"Deprecated: new name is \"noise_threshold\".");
float nthresh;
if (!getfloatfield(L, index, "noise_threshold", nthresh) &&
!getfloatfield(L, index, "noise_threshhold", nthresh))
nthresh = 0;
ore->nthresh = nthresh;
//// Get y_min/y_max
warn_if_field_exists(L, index, "height_min",
"Deprecated: new name is \"y_min\".");
warn_if_field_exists(L, index, "height_max",
"Deprecated: new name is \"y_max\".");
int ymin, ymax;
if (!getintfield(L, index, "y_min", ymin) &&
!getintfield(L, index, "height_min", ymin))
ymin = -31000;
if (!getintfield(L, index, "y_max", ymax) &&
!getintfield(L, index, "height_max", ymax))
ymax = 31000;
ore->y_min = ymin;
ore->y_max = ymax;
if (ore->clust_scarcity <= 0 || ore->clust_num_ores <= 0) {
errorstream << "register_ore: clust_scarcity and clust_num_ores"
"must be greater than 0" << std::endl;
delete ore;
return 0;
}
//// Get flags
getflagsfield(L, index, "flags", flagdesc_ore, &ore->flags, NULL);
//// Get biomes associated with this decoration (if any)
lua_getfield(L, index, "biomes");
if (get_biome_list(L, -1, bmgr, &ore->biomes))
errorstream << "register_ore: couldn't get all biomes " << std::endl;
lua_pop(L, 1);
//// Get noise parameters if needed
lua_getfield(L, index, "noise_params");
if (read_noiseparams(L, -1, &ore->np)) {
ore->flags |= OREFLAG_USE_NOISE;
} else if (ore->NEEDS_NOISE) {
errorstream << "register_ore: specified ore type requires valid "
"noise parameters" << std::endl;
delete ore;
return 0;
}
lua_pop(L, 1);
//// Get type-specific parameters
switch (oretype) {
case ORE_SHEET: {
OreSheet *oresheet = (OreSheet *)ore;
oresheet->column_height_min = getintfield_default(L, index,
"column_height_min", 1);
oresheet->column_height_max = getintfield_default(L, index,
"column_height_max", ore->clust_size);
oresheet->column_midpoint_factor = getfloatfield_default(L, index,
"column_midpoint_factor", 0.5f);
break;
}
case ORE_PUFF: {
OrePuff *orepuff = (OrePuff *)ore;
lua_getfield(L, index, "np_puff_top");
read_noiseparams(L, -1, &orepuff->np_puff_top);
lua_pop(L, 1);
lua_getfield(L, index, "np_puff_bottom");
read_noiseparams(L, -1, &orepuff->np_puff_bottom);
lua_pop(L, 1);
break;
}
case ORE_VEIN: {
OreVein *orevein = (OreVein *)ore;
orevein->random_factor = getfloatfield_default(L, index,
"random_factor", 1.f);
break;
}
default:
break;
}
ObjDefHandle handle = oremgr->add(ore);
if (handle == OBJDEF_INVALID_HANDLE) {
delete ore;
return 0;
}
ore->m_nodenames.push_back(getstringfield_default(L, index, "ore", ""));
size_t nnames = getstringlistfield(L, index, "wherein", &ore->m_nodenames);
ore->m_nnlistsizes.push_back(nnames);
ndef->pendNodeResolve(ore);
lua_pushinteger(L, handle);
return 1;
}
bool read_schematic(lua_State *L, int index, Schematic *schem,
INodeDefManager *ndef, std::map<std::string, std::string> &replace_names)
{
//// 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);
std::map<std::string, std::string>::iterator it;
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 false;
}
//// 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);
}
}
// 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 true;
}
// 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_TYPE_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_TYPE_VEIN) {
OreVein *orevein = (OreVein *)ore;
orevein->random_factor = getfloatfield_default(L, index,
"random_factor", 1.f);
}
u32 id = oremgr->add(ore);
if (id == (u32)-1) {
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);
verbosestream << "register_ore: " << ore->name << std::endl;
lua_pushinteger(L, id);
return 1;
}
ToolCapabilities read_tool_capabilities(
lua_State *L, int table)
{
ToolCapabilities toolcap;
getfloatfield(L, table, "full_punch_interval", toolcap.full_punch_interval);
getintfield(L, table, "max_drop_level", toolcap.max_drop_level);
lua_getfield(L, table, "groupcaps");
if(lua_istable(L, -1)){
int table_groupcaps = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table_groupcaps) != 0){
// key at index -2 and value at index -1
std::string groupname = luaL_checkstring(L, -2);
if(lua_istable(L, -1)){
int table_groupcap = lua_gettop(L);
// This will be created
ToolGroupCap groupcap;
// Read simple parameters
getintfield(L, table_groupcap, "maxlevel", groupcap.maxlevel);
getintfield(L, table_groupcap, "uses", groupcap.uses);
// DEPRECATED: maxwear
float maxwear = 0;
if(getfloatfield(L, table_groupcap, "maxwear", maxwear)){
if(maxwear != 0)
groupcap.uses = 1.0/maxwear;
else
groupcap.uses = 0;
infostream<<script_get_backtrace(L)<<std::endl;
infostream<<"WARNING: field \"maxwear\" is deprecated; "
<<"should replace with uses=1/maxwear"<<std::endl;
}
// Read "times" table
lua_getfield(L, table_groupcap, "times");
if(lua_istable(L, -1)){
int table_times = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table_times) != 0){
// key at index -2 and value at index -1
int rating = luaL_checkinteger(L, -2);
float time = luaL_checknumber(L, -1);
groupcap.times[rating] = time;
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
lua_pop(L, 1);
// Insert groupcap into toolcap
toolcap.groupcaps[groupname] = groupcap;
}
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
lua_pop(L, 1);
lua_getfield(L, table, "damage_groups");
if(lua_istable(L, -1)){
int table_damage_groups = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table_damage_groups) != 0){
// key at index -2 and value at index -1
std::string groupname = luaL_checkstring(L, -2);
u16 value = luaL_checkinteger(L, -1);
toolcap.damageGroups[groupname] = value;
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
lua_pop(L, 1);
return toolcap;
}
void ScriptApiEnv::initializeEnvironment(ServerEnvironment *env)
{
SCRIPTAPI_PRECHECKHEADER
verbosestream<<"scriptapi_add_environment"<<std::endl;
setEnv(env);
/*
Add ActiveBlockModifiers to environment
*/
// Get core.registered_abms
lua_getglobal(L, "core");
lua_getfield(L, -1, "registered_abms");
luaL_checktype(L, -1, LUA_TTABLE);
int registered_abms = lua_gettop(L);
if(lua_istable(L, registered_abms)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
int id = lua_tonumber(L, -2);
int current_abm = lua_gettop(L);
std::set<std::string> trigger_contents;
lua_getfield(L, current_abm, "nodenames");
if(lua_istable(L, -1)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
trigger_contents.insert(lua_tostring(L, -1));
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, -1)){
trigger_contents.insert(lua_tostring(L, -1));
}
lua_pop(L, 1);
std::set<std::string> required_neighbors;
lua_getfield(L, current_abm, "neighbors");
if(lua_istable(L, -1)){
int table = lua_gettop(L);
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
required_neighbors.insert(lua_tostring(L, -1));
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, -1)){
required_neighbors.insert(lua_tostring(L, -1));
}
lua_pop(L, 1);
float trigger_interval = 10.0;
getfloatfield(L, current_abm, "interval", trigger_interval);
int trigger_chance = 50;
getintfield(L, current_abm, "chance", trigger_chance);
int neighbors_range = 1;
getintfield(L, current_abm, "neighbors_range", neighbors_range);
LuaABM *abm = new LuaABM(L, id, trigger_contents,
required_neighbors, neighbors_range, trigger_interval, trigger_chance);
env->addActiveBlockModifier(abm);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
lua_pop(L, 1);
}
bool read_schematic(lua_State *L, int index, DecoSchematic *dschem, Server *server) {
if (index < 0)
index = lua_gettop(L) + 1 + index;
INodeDefManager *ndef = server->getNodeDefManager();
if (lua_istable(L, index)) {
lua_getfield(L, index, "size");
v3s16 size = read_v3s16(L, -1);
lua_pop(L, 1);
int numnodes = size.X * size.Y * size.Z;
MapNode *schemdata = new MapNode[numnodes];
int i = 0;
// Get schematic data
lua_getfield(L, index, "data");
luaL_checktype(L, -1, LUA_TTABLE);
lua_pushnil(L);
while (lua_next(L, -2)) {
if (i < numnodes) {
// same as readnode, except param1 default is MTSCHEM_PROB_CONST
lua_getfield(L, -1, "name");
const char *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);
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;
return false;
}
u8 *sliceprobs = new u8[size.Y];
for (i = 0; i != size.Y; i++)
sliceprobs[i] = MTSCHEM_PROB_ALWAYS;
// Get Y-slice probability values (if present)
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) {
sliceprobs[i] = getintfield_default(L, -1,
"prob", MTSCHEM_PROB_ALWAYS);
}
lua_pop(L, 1);
}
}
dschem->size = size;
dschem->schematic = schemdata;
dschem->slice_probs = sliceprobs;
} else if (lua_isstring(L, index)) {
dschem->filename = std::string(lua_tostring(L, index));
} else {
errorstream << "read_schematic: missing schematic "
"filename or raw schematic data" << std::endl;
return false;
}
return true;
}
bool read_schematic_def(lua_State *L, int index,
Schematic *schem, std::vector<std::string> *names)
{
if (!lua_istable(L, index))
return false;
//// Get schematic size
lua_getfield(L, index, "size");
v3s16 size = check_v3s16(L, -1);
lua_pop(L, 1);
schem->size = size;
//// Get schematic data
lua_getfield(L, index, "data");
luaL_checktype(L, -1, LUA_TTABLE);
int numnodes = size.X * size.Y * size.Z;
schem->schemdata = new MapNode[numnodes];
int i = 0;
size_t names_base = names->size();
std::map<std::string, content_t> name_id_map;
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);
std::map<std::string, content_t>::iterator it = name_id_map.find(name);
content_t name_index;
if (it != name_id_map.end()) {
name_index = it->second;
} else {
name_index = names->size() - names_base;
name_id_map[name] = name_index;
names->push_back(name);
}
schem->schemdata[i] = MapNode(name_index, param1, param2);
i++;
lua_pop(L, 1);
}
if (i != numnodes) {
errorstream << "read_schematic_def: incorrect number of "
"nodes provided in raw schematic data (got " << i <<
", expected " << numnodes << ")." << std::endl;
return false;
}
//// Get Y-slice probability values (if present)
schem->slice_probs = new u8[size.Y];
for (i = 0; i != size.Y; i++)
schem->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) {
schem->slice_probs[i] = getintfield_default(L, -1,
"prob", MTSCHEM_PROB_ALWAYS);
}
lua_pop(L, 1);
}
}
return true;
}
// 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) {
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;
}
ore->m_nodenames.push_back(getstringfield_default(L, index, "ore", ""));
size_t nnames = getstringlistfield(L, index, "wherein", &ore->m_nodenames);
ore->m_nnlistsizes.push_back(nnames);
ndef->pendNodeResolve(ore, NODE_RESOLVE_DEFERRED);
lua_pushinteger(L, handle);
return 1;
}
