diff options
| -rw-r--r-- | doc/lua_api.txt | 2 | ||||
| -rw-r--r-- | src/scriptapi.cpp | 50 |
2 files changed, 52 insertions, 0 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt index e4f357f2d..9c70037a5 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -668,6 +668,8 @@ methods: - get_timeofday() - find_node_near(pos, radius, nodenames) -> pos or nil ^ nodenames: eg. {"ignore", "group:tree"} or "default:dirt" +- find_nodes_in_area(minp, maxp, nodenames) -> list of positions + ^ nodenames: eg. {"ignore", "group:tree"} or "default:dirt" - get_perlin(seeddiff, octaves, persistence, scale) ^ Return world-specific perlin noise (int(worldseed)+seeddiff) Deprecated: diff --git a/src/scriptapi.cpp b/src/scriptapi.cpp index 7ce10c415..726f43b9c 100644 --- a/src/scriptapi.cpp +++ b/src/scriptapi.cpp @@ -3346,6 +3346,55 @@ private: return 0; } + // EnvRef:find_nodes_in_area(minp, maxp, nodenames) -> list of positions + // nodenames: eg. {"ignore", "group:tree"} or "default:dirt" + static int l_find_nodes_in_area(lua_State *L) + { + EnvRef *o = checkobject(L, 1); + ServerEnvironment *env = o->m_env; + if(env == NULL) return 0; + INodeDefManager *ndef = get_server(L)->ndef(); + v3s16 minp = read_v3s16(L, 2); + v3s16 maxp = read_v3s16(L, 3); + std::set<content_t> filter; + if(lua_istable(L, 4)){ + int table = 4; + 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, 4)){ + ndef->getIds(lua_tostring(L, 4), 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; + } + // EnvRef:get_perlin(seeddiff, octaves, persistence, scale) // returns world-specific PerlinNoise static int l_get_perlin(lua_State *L) @@ -3441,6 +3490,7 @@ const luaL_reg EnvRef::methods[] = { method(EnvRef, set_timeofday), method(EnvRef, get_timeofday), method(EnvRef, find_node_near), + method(EnvRef, find_nodes_in_area), method(EnvRef, get_perlin), {0,0} }; |