// find_nodes_in_area(minp, maxp, nodenames) -> list of positions
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
{
GET_ENV_PTR;
INodeDefManager *ndef = getServer(L)->ndef();
v3s16 minp = read_v3s16(L, 1);
v3s16 maxp = read_v3s16(L, 2);
std::set<content_t> filter;
if(lua_istable(L, 3)) {
int table = 3;
lua_pushnil(L);
while(lua_next(L, table) != 0) {
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
ndef->getIds(lua_tostring(L, -1), filter);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, 3)) {
ndef->getIds(lua_tostring(L, 3), filter);
}
std::map<content_t, u16> individual_count;
lua_newtable(L);
u64 i = 0;
for (s16 x = minp.X; x <= maxp.X; x++)
for (s16 y = minp.Y; y <= maxp.Y; y++)
for (s16 z = minp.Z; z <= maxp.Z; z++) {
v3s16 p(x, y, z);
content_t c = env->getMap().getNodeNoEx(p).getContent();
if (filter.count(c) != 0) {
push_v3s16(L, p);
lua_rawseti(L, -2, ++i);
individual_count[c]++;
}
}
lua_newtable(L);
for (std::set<content_t>::iterator it = filter.begin();
it != filter.end(); ++it) {
lua_pushnumber(L, individual_count[*it]);
lua_setfield(L, -2, ndef->get(*it).name.c_str());
}
return 2;
}
// minetest.find_nodes_in_area(minp, maxp, nodenames) -> list of positions
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
{
GET_ENV_PTR;
INodeDefManager *ndef = getServer(L)->ndef();
v3s16 minp = read_v3s16(L, 1);
v3s16 maxp = read_v3s16(L, 2);
std::set<content_t> filter;
if(lua_istable(L, 3)){
int table = 3;
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
ndef->getIds(lua_tostring(L, -1), filter);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, 3)){
ndef->getIds(lua_tostring(L, 3), filter);
}
// Get the table insert function
lua_getglobal(L, "table");
lua_getfield(L, -1, "insert");
int table_insert = lua_gettop(L);
lua_newtable(L);
int table = lua_gettop(L);
for(s16 x=minp.X; x<=maxp.X; x++)
for(s16 y=minp.Y; y<=maxp.Y; y++)
for(s16 z=minp.Z; z<=maxp.Z; z++)
{
v3s16 p(x,y,z);
content_t c = env->getMap().getNodeNoEx(p).getContent();
if(filter.count(c) != 0){
lua_pushvalue(L, table_insert);
lua_pushvalue(L, table);
push_v3s16(L, p);
if(lua_pcall(L, 2, 0, 0))
script_error(L, "error: %s", lua_tostring(L, -1));
}
}
return 1;
}
// get_node_level(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node_level(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.getLevel(env->getGameDef()->ndef()));
return 1;
}
// get_meta(pos)
int ModApiEnvMod::l_get_meta(lua_State *L)
{
GET_ENV_PTR;
// Do it
v3s16 p = read_v3s16(L, 1);
NodeMetaRef::create(L, p, env);
return 1;
}
// get_node_timer(pos)
int ModApiEnvMod::l_get_node_timer(lua_State *L)
{
GET_ENV_PTR;
// Do it
v3s16 p = read_v3s16(L, 1);
NodeTimerRef::create(L, p, env);
return 1;
}
// LuaVoxelManip()
// Creates an LuaVoxelManip and leaves it on top of stack
int LuaVoxelManip::create_object(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
Environment *env = getEnv(L);
if (!env)
return 0;
Map *map = &(env->getMap());
LuaVoxelManip *o = (lua_istable(L, 1) && lua_istable(L, 2)) ?
new LuaVoxelManip(map, read_v3s16(L, 1), read_v3s16(L, 2)) :
new LuaVoxelManip(map);
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
luaL_getmetatable(L, className);
lua_setmetatable(L, -2);
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);
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;
}
// emerge_area(p1, p2, [callback, context])
// emerge mapblocks in area p1..p2, calls callback with context upon completion
int ModApiEnvMod::l_emerge_area(lua_State *L)
{
GET_ENV_PTR;
EmergeCompletionCallback callback = NULL;
ScriptCallbackState *state = NULL;
EmergeManager *emerge = getServer(L)->getEmergeManager();
v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
sortBoxVerticies(bpmin, bpmax);
size_t num_blocks = VoxelArea(bpmin, bpmax).getVolume();
assert(num_blocks != 0);
if (lua_isfunction(L, 3)) {
callback = LuaEmergeAreaCallback;
lua_pushvalue(L, 3);
int callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
lua_pushvalue(L, 4);
int args_ref = luaL_ref(L, LUA_REGISTRYINDEX);
state = new ScriptCallbackState;
state->script = getServer(L)->getScriptIface();
state->callback_ref = callback_ref;
state->args_ref = args_ref;
state->refcount = num_blocks;
state->origin = getScriptApiBase(L)->getOrigin();
}
for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
for (s16 x = bpmin.X; x <= bpmax.X; x++) {
emerge->enqueueBlockEmergeEx(v3s16(x, y, z), PEER_ID_INEXISTENT,
BLOCK_EMERGE_ALLOW_GEN | BLOCK_EMERGE_FORCE_QUEUE, callback, state);
}
return 0;
}
// get_node(pos)
// pos = {x=num, y=num, z=num}
int ModApiClient::l_get_node(lua_State *L)
{
// pos
v3s16 pos = read_v3s16(L, 1);
// Do it
bool pos_ok;
MapNode n = getClient(L)->getNode(pos, &pos_ok);
// Return node
pushnode(L, n, getClient(L)->ndef());
return 1;
}
// remove_node(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_remove_node(lua_State *L)
{
GET_ENV_PTR;
// parameters
v3s16 pos = read_v3s16(L, 1);
// Do it
bool succeeded = env->removeNode(pos);
lua_pushboolean(L, succeeded);
return 1;
}
int LuaVoxelManip::l_get_node_at(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
GET_ENV_PTR;
LuaVoxelManip *o = checkobject(L, 1);
v3s16 pos = read_v3s16(L, 2);
pushnode(L, o->vm->getNodeNoExNoEmerge(pos), env->getGameDef()->ndef());
return 1;
}
// get_node_level(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node_level(lua_State *L)
{
Environment *env = getEnv(L);
if (!env) {
return 0;
}
v3s16 pos = read_v3s16(L, 1);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.getLevel(env->getGameDef()->ndef()));
return 1;
}
// get_node(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node(lua_State *L)
{
GET_ENV_PTR;
// pos
v3s16 pos = read_v3s16(L, 1);
// Do it
MapNode n = env->getMap().getNodeNoEx(pos);
// Return node
pushnode(L, n, env->getGameDef()->ndef());
return 1;
}
// find_path(pos1, pos2, searchdistance,
// max_jump, max_drop, algorithm) -> table containing path
int ModApiEnvMod::l_find_path(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos1 = read_v3s16(L, 1);
v3s16 pos2 = read_v3s16(L, 2);
unsigned int searchdistance = luaL_checkint(L, 3);
unsigned int max_jump = luaL_checkint(L, 4);
unsigned int max_drop = luaL_checkint(L, 5);
algorithm algo = A_PLAIN_NP;
if (!lua_isnil(L, 6)) {
std::string algorithm = luaL_checkstring(L,6);
if (algorithm == "A*")
algo = A_PLAIN;
if (algorithm == "Dijkstra")
algo = DIJKSTRA;
}
std::vector<v3s16> path =
get_Path(env,pos1,pos2,searchdistance,max_jump,max_drop,algo);
if (path.size() > 0)
{
lua_newtable(L);
int top = lua_gettop(L);
unsigned int index = 1;
for (std::vector<v3s16>::iterator i = path.begin(); i != path.end();i++)
{
lua_pushnumber(L,index);
push_v3s16(L, *i);
lua_settable(L, top);
index++;
}
return 1;
}
return 0;
}
int LuaVoxelManip::l_set_node_at(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
GET_ENV_PTR;
LuaVoxelManip *o = checkobject(L, 1);
v3s16 pos = read_v3s16(L, 2);
MapNode n = readnode(L, 3, env->getGameDef()->ndef());
o->vm->setNodeNoEmerge(pos, n);
return 0;
}
// LuaPerlinNoiseMap(np, size)
// Creates an LuaPerlinNoiseMap and leaves it on top of stack
int LuaPerlinNoiseMap::create_object(lua_State *L)
{
NoiseParams *np = read_noiseparams(L, 1);
if (!np)
return 0;
v3s16 size = read_v3s16(L, 2);
LuaPerlinNoiseMap *o = new LuaPerlinNoiseMap(np, 0, size);
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
luaL_getmetatable(L, className);
lua_setmetatable(L, -2);
return 1;
}
// add_node_level(pos, level)
// pos = {x=num, y=num, z=num}
// level: 0..63
int ModApiEnvMod::l_add_node_level(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
u8 level = 1;
if(lua_isnumber(L, 2))
level = lua_tonumber(L, 2);
MapNode n = env->getMap().getNodeNoEx(pos);
lua_pushnumber(L, n.addLevel(env->getGameDef()->ndef(), level));
env->setNode(pos, n);
return 1;
}
// set_node(pos, node)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_set_node(lua_State *L)
{
GET_ENV_PTR;
INodeDefManager *ndef = env->getGameDef()->ndef();
// parameters
v3s16 pos = read_v3s16(L, 1);
MapNode n = readnode(L, 2, ndef);
// Do it
bool succeeded = env->setNode(pos, n);
lua_pushboolean(L, succeeded);
return 1;
}
// find_path(pos1, pos2, searchdistance,
// max_jump, max_drop, algorithm) -> table containing path
int ModApiEnvMod::l_find_path(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos1 = read_v3s16(L, 1);
v3s16 pos2 = read_v3s16(L, 2);
unsigned int searchdistance = luaL_checkint(L, 3);
unsigned int max_jump = luaL_checkint(L, 4);
unsigned int max_drop = luaL_checkint(L, 5);
PathAlgorithm algo = PA_PLAIN_NP;
if (!lua_isnil(L, 6)) {
std::string algorithm = luaL_checkstring(L,6);
if (algorithm == "A*")
algo = PA_PLAIN;
if (algorithm == "Dijkstra")
algo = PA_DIJKSTRA;
}
std::vector<v3s16> path = get_path(env, pos1, pos2,
searchdistance, max_jump, max_drop, algo);
if (!path.empty()) {
lua_newtable(L);
int top = lua_gettop(L);
unsigned int index = 1;
for (const v3s16 &i : path) {
lua_pushnumber(L,index);
push_v3s16(L, i);
lua_settable(L, top);
index++;
}
return 1;
}
return 0;
}
int LuaPerlinNoiseMap::l_getMapSlice(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
LuaPerlinNoiseMap *o = checkobject(L, 1);
v3s16 slice_offset = read_v3s16(L, 2);
v3s16 slice_size = read_v3s16(L, 3);
bool use_buffer = lua_istable(L, 4);
Noise *n = o->noise;
if (use_buffer)
lua_pushvalue(L, 3);
else
lua_newtable(L);
write_array_slice_float(L, lua_gettop(L), n->result,
v3u16(n->sx, n->sy, n->sz),
v3u16(slice_offset.X, slice_offset.Y, slice_offset.Z),
v3u16(slice_size.X, slice_size.Y, slice_size.Z));
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;
int rot = ROTATE_0;
if (lua_isstring(L, 3))
string_to_enum(es_Rotation, rot, std::string(lua_tostring(L, 3)));
dschem.rotation = (Rotation)rot;
if (lua_istable(L, 4)) {
lua_pushnil(L);
while (lua_next(L, 4) != 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);
}
}
bool force_placement = true;
if (lua_isboolean(L, 5))
force_placement = lua_toboolean(L, 5);
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, force_placement);
return 1;
}
// find_nodes_in_area(minp, maxp, nodenames) -> list of positions
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
int ModApiEnvMod::l_find_nodes_in_area(lua_State *L)
{
GET_ENV_PTR;
INodeDefManager *ndef = getServer(L)->ndef();
v3s16 minp = read_v3s16(L, 1);
v3s16 maxp = read_v3s16(L, 2);
std::set<content_t> filter;
if(lua_istable(L, 3)){
int table = 3;
lua_pushnil(L);
while(lua_next(L, table) != 0){
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
ndef->getIds(lua_tostring(L, -1), filter);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if(lua_isstring(L, 3)){
ndef->getIds(lua_tostring(L, 3), filter);
}
lua_newtable(L);
u64 i = 0;
for(s16 x = minp.X; x <= maxp.X; x++)
for(s16 y = minp.Y; y <= maxp.Y; y++)
for(s16 z = minp.Z; z <= maxp.Z; z++) {
v3s16 p(x, y, z);
content_t c = env->getMap().getNodeNoEx(p).getContent();
if(filter.count(c) != 0) {
push_v3s16(L, p);
lua_rawseti(L, -2, ++i);
}
}
return 1;
}
// rollback_get_last_node_actor(p, range, seconds) -> actor, p, seconds
int ModApiBasic::l_rollback_get_last_node_actor(lua_State *L)
{
v3s16 p = read_v3s16(L, 1);
int range = luaL_checknumber(L, 2);
int seconds = luaL_checknumber(L, 3);
Server *server = getServer(L);
IRollbackManager *rollback = server->getRollbackManager();
v3s16 act_p;
int act_seconds = 0;
std::string actor = rollback->getLastNodeActor(p, range, seconds, &act_p, &act_seconds);
lua_pushstring(L, actor.c_str());
push_v3s16(L, act_p);
lua_pushnumber(L, act_seconds);
return 3;
}
// get_perlin_map(noiseparams, size)
// returns world-specific PerlinNoiseMap
int ModApiEnvMod::l_get_perlin_map(lua_State *L)
{
GET_ENV_PTR;
NoiseParams *np = read_noiseparams(L, 1);
if (!np)
return 0;
v3s16 size = read_v3s16(L, 2);
int seed = (int)(env->getServerMap().getSeed());
LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(np, seed, size);
*(void **)(lua_newuserdata(L, sizeof(void *))) = n;
luaL_getmetatable(L, "PerlinNoiseMap");
lua_setmetatable(L, -2);
return 1;
}
// get_perlin_map(noiseparams, size)
// returns world-specific PerlinNoiseMap
int ModApiEnvMod::l_get_perlin_map(lua_State *L)
{
GET_ENV_PTR_NO_MAP_LOCK;
NoiseParams np;
if (!read_noiseparams(L, 1, &np))
return 0;
v3s16 size = read_v3s16(L, 2);
s32 seed = (s32)(env->getServerMap().getSeed());
LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(&np, seed, size);
*(void **)(lua_newuserdata(L, sizeof(void *))) = n;
luaL_getmetatable(L, "PerlinNoiseMap");
lua_setmetatable(L, -2);
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;
}
// find_node_near(pos, radius, nodenames, search_center) -> pos or nil
// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
int ModApiEnvMod::l_find_node_near(lua_State *L)
{
Environment *env = getEnv(L);
if (!env) {
return 0;
}
INodeDefManager *ndef = getGameDef(L)->ndef();
v3s16 pos = read_v3s16(L, 1);
int radius = luaL_checkinteger(L, 2);
std::vector<content_t> filter;
if (lua_istable(L, 3)) {
lua_pushnil(L);
while (lua_next(L, 3) != 0) {
// key at index -2 and value at index -1
luaL_checktype(L, -1, LUA_TSTRING);
ndef->getIds(lua_tostring(L, -1), filter);
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
} else if (lua_isstring(L, 3)) {
ndef->getIds(lua_tostring(L, 3), filter);
}
int start_radius = (lua_toboolean(L, 4)) ? 0 : 1;
#ifndef SERVER
// Client API limitations
if (getClient(L) &&
getClient(L)->checkCSMFlavourLimit(CSMFlavourLimit::CSM_FL_LOOKUP_NODES)) {
radius = std::max<int>(radius, getClient(L)->getCSMNodeRangeLimit());
}
#endif
for (int d = start_radius; d <= radius; d++) {
std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
for (const v3s16 &i : list) {
v3s16 p = pos + i;
content_t c = env->getMap().getNodeNoEx(p).getContent();
if (CONTAINS(filter, c)) {
push_v3s16(L, p);
return 1;
}
}
}
return 0;
}
// get_node_or_nil(pos)
// pos = {x=num, y=num, z=num}
int ModApiEnvMod::l_get_node_or_nil(lua_State *L)
{
GET_ENV_PTR;
// pos
v3s16 pos = read_v3s16(L, 1);
// Do it
bool pos_ok;
MapNode n = env->getMap().getNodeNoEx(pos, &pos_ok);
if (pos_ok) {
// Return node
pushnode(L, n, env->getGameDef()->ndef());
} else {
lua_pushnil(L);
}
return 1;
}
// freeze_melt(pos, direction)
// pos = {x=num, y=num, z=num}
// direction: -1 (freeze), 1 (melt)
int ModApiEnvMod::l_freeze_melt(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
int direction = 1;
if(lua_isnumber(L, 2))
direction = lua_tonumber(L, 2);
MapNode n = env->getMap().getNodeNoEx(pos);
if(n.getContent() == CONTENT_IGNORE){
lua_pushnumber(L, 0);
return 1;
}
lua_pushnumber(L, n.freeze_melt(env->getGameDef()->ndef(), direction));
env->setNode(pos, n);
return 1;
}
// set_node_level(pos, level)
// pos = {x=num, y=num, z=num}
// level: 0..63
int ModApiEnvMod::l_set_node_level(lua_State *L)
{
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
u8 level = 1;
if(lua_isnumber(L, 2))
level = lua_tonumber(L, 2);
MapNode n = env->getMap().getNodeNoEx(pos);
if(n.getContent() == CONTENT_IGNORE){
lua_pushnumber(L, 0);
return 1;
}
lua_pushnumber(L, n.setLevel(env->getGameDef()->ndef(), level));
env->setNode(pos, n);
return 1;
}
