minetest.git - modified minetest for gpcfs purposes

	Commit message (Collapse)	Author	Age
*	Compress textures	David Gumberg	2013-06-18
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*	games/minimal: Add menu/background.png and menu/icon.png	Perttu Ahola	2013-05-02

/* Minetest Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com> Copyright (C) 2017-8 rubenwardy <rw@rubenwardy.com> Copyright (C) 2017 raymoo 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_itemstackmeta.h" #include "lua_api/l_internal.h" #include "common/c_content.h" /* NodeMetaRef */ ItemStackMetaRef* ItemStackMetaRef::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 *(ItemStackMetaRef**)ud; // unbox pointer } Metadata* ItemStackMetaRef::getmeta(bool auto_create) { return &istack->metadata; } void ItemStackMetaRef::clearMeta() { istack->metadata.clear(); } void ItemStackMetaRef::reportMetadataChange() { // TODO } // Exported functions int ItemStackMetaRef::l_set_tool_capabilities(lua_State *L) { ItemStackMetaRef *metaref = checkobject(L, 1); if (lua_isnoneornil(L, 2)) { metaref->clearToolCapabilities(); } else if (lua_istable(L, 2)) { ToolCapabilities caps = read_tool_capabilities(L, 2); metaref->setToolCapabilities(caps); } else { luaL_typerror(L, 2, "table or nil"); } return 0; } // garbage collector int ItemStackMetaRef::gc_object(lua_State *L) { ItemStackMetaRef *o = *(ItemStackMetaRef **)(lua_touserdata(L, 1)); delete o; return 0; } // Creates an NodeMetaRef and leaves it on top of stack // Not callable from Lua; all references are created on the C side. void ItemStackMetaRef::create(lua_State *L, ItemStack *istack) { ItemStackMetaRef *o = new ItemStackMetaRef(istack); //infostream<<"NodeMetaRef::create: o="<<o<<std::endl; *(void **)(lua_newuserdata(L, sizeof(void *))) = o; luaL_getmetatable(L, className); lua_setmetatable(L, -2); } void ItemStackMetaRef::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() 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 luaL_openlib(L, 0, methods, 0); // fill methodtable lua_pop(L, 1); // drop methodtable // Cannot be created from Lua //lua_register(L, className, create_object); } const char ItemStackMetaRef::className[] = "ItemStackMetaRef"; const luaL_Reg ItemStackMetaRef::methods[] = { 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(MetaDataRef, equals), luamethod(ItemStackMetaRef, set_tool_capabilities), {0,0} };