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/*
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.
*/
#ifndef L_NODEMETA_H_
#define L_NODEMETA_H_
#include "lua_api/l_base.h"
#include "irrlichttypes_bloated.h"
class ServerEnvironment;
class NodeMetadata;
/*
NodeMetaRef
*/
class NodeMetaRef : public ModApiBase {
private:
v3s16 m_p;
ServerEnvironment *m_env;
static const char className[];
static const luaL_reg methods[];
static NodeMetaRef *checkobject(lua_State *L, int narg);
/**
* Retrieve metadata for a node.
* If @p auto_create is set and the specified node has no metadata information
* associated with it yet, the method attempts to attach a new metadata object
* to the node and returns a pointer to the metadata when successful.
*
* However, it is NOT guaranteed that the method will return a pointer,
* and @c NULL may be returned in case of an error regardless of @p auto_create.
*
* @param ref specifies the node for which the associated metadata is retrieved.
* @param auto_create when true, try to create metadata information for the node if it has none.
* @return pointer to a @c NodeMetadata object or @c NULL in case of error.
*/
static NodeMetadata* getmeta(NodeMetaRef *ref, bool auto_create);
static void reportMetadataChange(NodeMetaRef *ref);
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
// get_string(self, name)
static int l_get_string(lua_State *L);
// set_string(self, name, var)
static int l_set_string(lua_State *L);
// get_int(self, name)
static int l_get_int(lua_State *L);
// set_int(self, name, var)
static int l_set_int(lua_State *L);
// get_float(self, name)
static int l_get_float(lua_State *L);
// set_float(self, name, var)
static int l_set_float(lua_State *L);
// get_inventory(self)
static int l_get_inventory(lua_State *L);
// to_table(self)
static int l_to_table(lua_State *L);
// from_table(self, table)
static int l_from_table(lua_State *L);
public:
NodeMetaRef(v3s16 p, ServerEnvironment *env);
~NodeMetaRef();
// Creates an NodeMetaRef and leaves it on top of stack
// Not callable from Lua; all references are created on the C side.
static void create(lua_State *L, v3s16 p, ServerEnvironment *env);
static void Register(lua_State *L);
};
#endif /* L_NODEMETA_H_ */
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