minetest.git - modified minetest for gpcfs purposes

diff options

-rw-r--r--

1 files changed, 2 insertions, 0 deletions

/* 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_nodemeta.h" #include "lua_api/l_internal.h" #include "lua_api/l_inventory.h" #include "common/c_content.h" #include "serverenvironment.h" #include "map.h" #include "server.h" /* NodeMetaRef */ NodeMetaRef* NodeMetaRef::checkobject(lua_State *L, int narg) { luaL_checktype(L, narg, LUA_TUSERDATA); void *ud = luaL_checkudata(L, narg, className); if(!ud) luaL_typerror(L, narg, className); return *(NodeMetaRef**)ud; // unbox pointer } Metadata* NodeMetaRef::getmeta(bool auto_create) { NodeMetadata *meta = m_env->getMap().getNodeMetadata(m_p); if (meta == NULL && auto_create) { meta = new NodeMetadata(m_env->getGameDef()->idef()); if (!m_env->getMap().setNodeMetadata(m_p, meta)) { delete meta; return NULL; } } return meta; } void NodeMetaRef::clearMeta() { m_env->getMap().removeNodeMetadata(m_p); } void NodeMetaRef::reportMetadataChange() { // NOTE: This same code is in rollback_interface.cpp // Inform other things that the metadata has changed v3s16 blockpos = getNodeBlockPos(m_p); MapEditEvent event; event.type = MEET_BLOCK_NODE_METADATA_CHANGED; event.p = blockpos; m_env->getMap().dispatchEvent(&event); // Set the block to be saved MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos); if (block) { block->raiseModified(MOD_STATE_WRITE_NEEDED, MOD_REASON_REPORT_META_CHANGE); } } // Exported functions // garbage collector int NodeMetaRef::gc_object(lua_State *L) { NodeMetaRef *o = *(NodeMetaRef **)(lua_touserdata(L, 1)); delete o; return 0; } // get_inventory(self) int NodeMetaRef::l_get_inventory(lua_State *L) { MAP_LOCK_REQUIRED; NodeMetaRef *ref = checkobject(L, 1); ref->getmeta(true); // try to ensure the metadata exists InvRef::createNodeMeta(L, ref->m_p); return 1; } void NodeMetaRef::handleToTable(lua_State *L, Metadata *_meta) { // fields MetaDataRef::handleToTable(L, _meta); NodeMetadata *meta = (NodeMetadata*) _meta; // inventory lua_newtable(L); Inventory *inv = meta->getInventory(); if (inv) { std::vector<const InventoryList *> lists = inv->getLists(); for(std::vector<const InventoryList *>::const_iterator i = lists.begin(); i != lists.end(); i++) { push_inventory_list(L, inv, (*i)->getName().c_str()); lua_setfield(L, -2, (*i)->getName().c_str()); } } lua_setfield(L, -2, "inventory"); } // from_table(self, table) bool NodeMetaRef::handleFromTable(lua_State *L, int table, Metadata *_meta) { // fields if (!MetaDataRef::handleFromTable(L, table, _meta)) return false; NodeMetadata *meta = (NodeMetadata*) _meta; // inventory Inventory *inv = meta->getInventory(); lua_getfield(L, table, "inventory"); if (lua_istable(L, -1)) { int inventorytable = lua_gettop(L); lua_pushnil(L); while (lua_next(L, inventorytable) != 0) { // key at index -2 and value at index -1 std::string name = lua_tostring(L, -2); read_inventory_list(L, -1, inv, name.c_str(), getServer(L)); lua_pop(L, 1); // Remove value, keep key for next iteration } lua_pop(L, 1); } return true; } NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env): m_p(p), m_env(env) { } NodeMetaRef::~NodeMetaRef() { } // Creates an NodeMetaRef and leaves it on top of stack // Not callable from Lua; all references are created on the C side. void NodeMetaRef::create(lua_State *L, v3s16 p, ServerEnvironment *env) { NodeMetaRef *o = new NodeMetaRef(p, env); //infostream<<"NodeMetaRef::create: o="<<o<<std::endl; *(void **)(lua_newuserdata(L, sizeof(void *))) = o; luaL_getmetatable(L, className); lua_setmetatable(L, -2); } void NodeMetaRef::Register(lua_State *L) { lua_newtable(L); int methodtable = lua_gettop(L); luaL_newmetatable(L, className); int metatable = lua_gettop(L); lua_pushliteral(L, "__metatable"); lua_pushvalue(L, methodtable); lua_settable(L, metatable); // hide metatable from Lua getmetatable()


context:
space:
mode: