advtrains.git - Advtrains mod for minetest.

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author	Gabriel Pérez-Cerezo <gabriel@gpcf.eu>	2019-08-09 19:11:26 +0200
committer	Gabriel Pérez-Cerezo <gabriel@gpcf.eu>	2019-08-09 19:11:26 +0200
commit	d074d3223ac87f617b28454ef0880c04ce89d53b (patch)
tree	0d3f0e3612a8847dfc2171a977e9d9434263a127 /advtrains/textures/advtrains_track_placer.png
parent	95fb122eca46c93c8a2545fe1baf4e1bea9d6e6b (diff)
download	advtrains-d074d3223ac87f617b28454ef0880c04ce89d53b.tar.gz advtrains-d074d3223ac87f617b28454ef0880c04ce89d53b.tar.bz2 advtrains-d074d3223ac87f617b28454ef0880c04ce89d53b.zip

Change API to return the id of a newly created train when discoupling

Diffstat (limited to 'advtrains/textures/advtrains_track_placer.png')

0 files changed, 0 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 "mapblock.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) { if (m_is_local) return m_meta; 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() { SANITY_CHECK(!m_is_local); m_env->getMap().removeNodeMetadata(m_p); } void NodeMetaRef::reportMetadataChange(const std::string *name) { SANITY_CHECK(!m_is_local); // NOTE: This same code is in rollback_interface.cpp // Inform other things that the metadata has changed NodeMetadata *meta = dynamic_cast<NodeMetadata*>(m_meta); MapEditEvent event; event.type = MEET_BLOCK_NODE_METADATA_CHANGED; event.p = m_p; event.is_private_change = name && meta && meta->isPrivate(*name); m_env->getMap().dispatchEvent(event); } // 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; } // mark_as_private(self, <string> or {<string>, <string>, ...}) int NodeMetaRef::l_mark_as_private(lua_State *L) { MAP_LOCK_REQUIRED; NodeMetaRef *ref = checkobject(L, 1); NodeMetadata *meta = dynamic_cast<NodeMetadata*>(ref->getmeta(true)); assert(meta); if (lua_istable(L, 2)) { lua_pushnil(L); while (lua_next(L, 2) != 0) { // key at index -2 and value at index -1 luaL_checktype(L, -1, LUA_TSTRING); meta->markPrivate(readParam<std::string>(L, -1), true); // removes value, keeps key for next iteration lua_pop(L, 1); } } else if (lua_isstring(L, 2)) { meta->markPrivate(readParam<std::string>(L, 2), true); } ref->reportMetadataChange(); return 0; } 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 = luaL_checkstring(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(Metadata *meta): m_meta(meta), m_is_local(true) { } // 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); } // Client-sided version of the above void NodeMetaRef::createClient(lua_State *L, Metadata *meta) { NodeMetaRef *o = new NodeMetaRef(meta); *(void **)(lua_newuserdata(L, sizeof(void *))) = o; luaL_getmetatable(L, className); lua_setmetatable(L, -2); } const char NodeMetaRef::className[] = "NodeMetaRef"; void NodeMetaRef::RegisterCommon(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() lua_pushliteral(L, "metadata_class"); lua_pushlstring(L, className, strlen(className)); lua_settable(L, metatable); lua_pushliteral(L, "__index"); lua_pushvalue(L, methodtable); lua_settable(L, metatable); lua_pushliteral(L, "__gc"); lua_pushcfunction(L, gc_object); lua_settable(L, metatable); lua_pushliteral(L, "__eq"); lua_pushcfunction(L, l_equals); lua_settable(L, metatable); lua_pop(L, 1); // drop metatable } void NodeMetaRef::Register(lua_State *L) { RegisterCommon(L); luaL_openlib(L, 0, methodsServer, 0); // fill methodtable lua_pop(L, 1); // drop methodtable } const luaL_Reg NodeMetaRef::methodsServer[] = { luamethod(MetaDataRef, contains), luamethod(MetaDataRef, get), luamethod(MetaDataRef, get_string), luamethod(MetaDataRef, set_string), luamethod(MetaDataRef, get_int), luamethod(MetaDataRef, set_int), luamethod(MetaDataRef, get_float), luamethod(MetaDataRef, set_float), luamethod(MetaDataRef, to_table), luamethod(MetaDataRef, from_table), luamethod(NodeMetaRef, get_inventory), luamethod(NodeMetaRef, mark_as_private), luamethod(MetaDataRef, equals), {0,0} }; void NodeMetaRef::RegisterClient(lua_State *L) { RegisterCommon(L); luaL_openlib(L, 0, methodsClient, 0); // fill methodtable lua_pop(L, 1); // drop methodtable } const luaL_Reg NodeMetaRef::methodsClient[] = { luamethod(MetaDataRef, contains), luamethod(MetaDataRef, get), luamethod(MetaDataRef, get_string), luamethod(MetaDataRef, get_int), luamethod(MetaDataRef, get_float), luamethod(MetaDataRef, to_table), {0,0} };


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