return *(NodeMetaRef**)ud; // unbox pointer
}
-NodeMetadata* NodeMetaRef::getmeta(NodeMetaRef *ref, bool auto_create)
+Metadata* NodeMetaRef::getmeta(bool auto_create)
{
- NodeMetadata *meta = ref->m_env->getMap().getNodeMetadata(ref->m_p);
- if(meta == NULL && auto_create) {
- meta = new NodeMetadata(ref->m_env->getGameDef()->idef());
- if(!ref->m_env->getMap().setNodeMetadata(ref->m_p, meta)) {
+ 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::reportMetadataChange(NodeMetaRef *ref)
+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(ref->m_p);
+ v3s16 blockpos = getNodeBlockPos(m_p);
MapEditEvent event;
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
event.p = blockpos;
- ref->m_env->getMap().dispatchEvent(&event);
+ m_env->getMap().dispatchEvent(&event);
// Set the block to be saved
- MapBlock *block = ref->m_env->getMap().getBlockNoCreateNoEx(blockpos);
+ MapBlock *block = m_env->getMap().getBlockNoCreateNoEx(blockpos);
if (block) {
block->raiseModified(MOD_STATE_WRITE_NEEDED,
MOD_REASON_REPORT_META_CHANGE);
return 0;
}
-// get_string(self, name)
-int NodeMetaRef::l_get_string(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = luaL_checkstring(L, 2);
-
- NodeMetadata *meta = getmeta(ref, false);
- if(meta == NULL){
- lua_pushlstring(L, "", 0);
- return 1;
- }
- std::string str = meta->getString(name);
- lua_pushlstring(L, str.c_str(), str.size());
- return 1;
-}
-
-// set_string(self, name, var)
-int NodeMetaRef::l_set_string(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = luaL_checkstring(L, 2);
- size_t len = 0;
- const char *s = lua_tolstring(L, 3, &len);
- std::string str(s, len);
-
- NodeMetadata *meta = getmeta(ref, !str.empty());
- if(meta == NULL || str == meta->getString(name))
- return 0;
- meta->setString(name, str);
- reportMetadataChange(ref);
- return 0;
-}
-
-// get_int(self, name)
-int NodeMetaRef::l_get_int(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = lua_tostring(L, 2);
-
- NodeMetadata *meta = getmeta(ref, false);
- if(meta == NULL){
- lua_pushnumber(L, 0);
- return 1;
- }
- std::string str = meta->getString(name);
- lua_pushnumber(L, stoi(str));
- return 1;
-}
-
-// set_int(self, name, var)
-int NodeMetaRef::l_set_int(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = lua_tostring(L, 2);
- int a = lua_tointeger(L, 3);
- std::string str = itos(a);
-
- NodeMetadata *meta = getmeta(ref, true);
- if(meta == NULL || str == meta->getString(name))
- return 0;
- meta->setString(name, str);
- reportMetadataChange(ref);
- return 0;
-}
-
-// get_float(self, name)
-int NodeMetaRef::l_get_float(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = lua_tostring(L, 2);
-
- NodeMetadata *meta = getmeta(ref, false);
- if(meta == NULL){
- lua_pushnumber(L, 0);
- return 1;
- }
- std::string str = meta->getString(name);
- lua_pushnumber(L, stof(str));
- return 1;
-}
-
-// set_float(self, name, var)
-int NodeMetaRef::l_set_float(lua_State *L)
-{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- std::string name = lua_tostring(L, 2);
- float a = lua_tonumber(L, 3);
- std::string str = ftos(a);
-
- NodeMetadata *meta = getmeta(ref, true);
- if(meta == NULL || str == meta->getString(name))
- return 0;
- meta->setString(name, str);
- reportMetadataChange(ref);
- return 0;
-}
-
// get_inventory(self)
int NodeMetaRef::l_get_inventory(lua_State *L)
{
MAP_LOCK_REQUIRED;
NodeMetaRef *ref = checkobject(L, 1);
- getmeta(ref, true); // try to ensure the metadata exists
+ ref->getmeta(true); // try to ensure the metadata exists
InvRef::createNodeMeta(L, ref->m_p);
return 1;
}
-// to_table(self)
-int NodeMetaRef::l_to_table(lua_State *L)
+void NodeMetaRef::handleToTable(lua_State *L, Metadata *_meta)
{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
-
- NodeMetadata *meta = getmeta(ref, true);
- if (meta == NULL) {
- lua_pushnil(L);
- return 1;
- }
- lua_newtable(L);
-
// fields
- lua_newtable(L);
- {
- StringMap fields = meta->getStrings();
- for (StringMap::const_iterator
- it = fields.begin(); it != fields.end(); ++it) {
- const std::string &name = it->first;
- const std::string &value = it->second;
- lua_pushlstring(L, name.c_str(), name.size());
- lua_pushlstring(L, value.c_str(), value.size());
- lua_settable(L, -3);
- }
- }
- lua_setfield(L, -2, "fields");
+ MetaDataRef::handleToTable(L, _meta);
+
+ NodeMetadata *meta = (NodeMetadata*) _meta;
// inventory
lua_newtable(L);
}
}
lua_setfield(L, -2, "inventory");
- return 1;
}
// from_table(self, table)
-int NodeMetaRef::l_from_table(lua_State *L)
+bool NodeMetaRef::handleFromTable(lua_State *L, int table, Metadata *_meta)
{
- MAP_LOCK_REQUIRED;
-
- NodeMetaRef *ref = checkobject(L, 1);
- int base = 2;
-
- // clear old metadata first
- ref->m_env->getMap().removeNodeMetadata(ref->m_p);
-
- if (!lua_istable(L, base)) {
- // No metadata
- lua_pushboolean(L, true);
- return 1;
- }
-
- // Create new metadata
- NodeMetadata *meta = getmeta(ref, true);
- if (meta == NULL) {
- lua_pushboolean(L, false);
- return 1;
- }
+ // fields
+ if (!MetaDataRef::handleFromTable(L, table, _meta))
+ return false;
- // Set fields
- lua_getfield(L, base, "fields");
- if (lua_istable(L, -1)) {
- int fieldstable = lua_gettop(L);
- lua_pushnil(L);
- while (lua_next(L, fieldstable) != 0) {
- // key at index -2 and value at index -1
- std::string name = lua_tostring(L, -2);
- size_t cl;
- const char *cs = lua_tolstring(L, -1, &cl);
- meta->setString(name, std::string(cs, cl));
- lua_pop(L, 1); // Remove value, keep key for next iteration
- }
- lua_pop(L, 1);
- }
+ NodeMetadata *meta = (NodeMetadata*) _meta;
- // Set inventory
+ // inventory
Inventory *inv = meta->getInventory();
- lua_getfield(L, base, "inventory");
+ lua_getfield(L, table, "inventory");
if (lua_istable(L, -1)) {
int inventorytable = lua_gettop(L);
lua_pushnil(L);
lua_pop(L, 1);
}
- reportMetadataChange(ref);
- lua_pushboolean(L, true);
- return 1;
+ return true;
}
NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env):
m_p(p),
- m_env(env)
+ m_env(env),
+ m_is_local(false)
+{
+}
+
+NodeMetaRef::NodeMetaRef(Metadata *meta):
+ m_meta(meta),
+ m_is_local(true)
{
}
lua_setmetatable(L, -2);
}
-void NodeMetaRef::Register(lua_State *L)
+// 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);
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_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
+void NodeMetaRef::Register(lua_State *L)
+{
+ RegisterCommon(L);
+ luaL_openlib(L, 0, methodsServer, 0); // fill methodtable
lua_pop(L, 1); // drop methodtable
-
- // Cannot be created from Lua
- //lua_register(L, className, create_object);
}
-const char NodeMetaRef::className[] = "NodeMetaRef";
-const luaL_reg NodeMetaRef::methods[] = {
- luamethod(NodeMetaRef, get_string),
- luamethod(NodeMetaRef, set_string),
- luamethod(NodeMetaRef, get_int),
- luamethod(NodeMetaRef, set_int),
- luamethod(NodeMetaRef, get_float),
- luamethod(NodeMetaRef, set_float),
+
+const luaL_Reg NodeMetaRef::methodsServer[] = {
+ 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, to_table),
- luamethod(NodeMetaRef, from_table),
+ 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, get_string),
+ luamethod(MetaDataRef, get_int),
+ luamethod(MetaDataRef, get_float),
+ luamethod(MetaDataRef, to_table),
{0,0}
};
projects / minetest.git / blobdiff