/*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
-You should have received a copy of the GNU General Public License along
+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 "nodemetadata.h"
-#include "utility.h"
-#include "mapnode.h"
#include "exceptions.h"
+#include "gamedef.h"
#include "inventory.h"
+#include "log.h"
+#include "util/serialize.h"
+#include "constants.h" // MAP_BLOCKSIZE
#include <sstream>
-#include "content_mapnode.h"
/*
NodeMetadata
*/
-core::map<u16, NodeMetadata::Factory> NodeMetadata::m_types;
+NodeMetadata::NodeMetadata(IItemDefManager *item_def_mgr):
+ m_inventory(new Inventory(item_def_mgr))
+{}
-NodeMetadata::NodeMetadata()
+NodeMetadata::~NodeMetadata()
{
+ delete m_inventory;
}
-NodeMetadata::~NodeMetadata()
+void NodeMetadata::serialize(std::ostream &os) const
{
+ int num_vars = m_stringvars.size();
+ writeU32(os, num_vars);
+ for (StringMap::const_iterator
+ it = m_stringvars.begin();
+ it != m_stringvars.end(); ++it) {
+ os << serializeString(it->first);
+ os << serializeLongString(it->second);
+ }
+
+ m_inventory->serialize(os);
}
-NodeMetadata* NodeMetadata::deSerialize(std::istream &is)
+void NodeMetadata::deSerialize(std::istream &is)
{
- // Read id
- u8 buf[2];
- is.read((char*)buf, 2);
- s16 id = readS16(buf);
-
- // Read data
- std::string data = deSerializeString(is);
-
- // Find factory function
- core::map<u16, Factory>::Node *n;
- n = m_types.find(id);
- if(n == NULL)
- {
- // If factory is not found, just return.
- dstream<<"WARNING: NodeMetadata: No factory for typeId="
- <<id<<std::endl;
- return NULL;
- }
-
- // Try to load the metadata. If it fails, just return.
- try
- {
- std::istringstream iss(data, std::ios_base::binary);
-
- Factory f = n->getValue();
- NodeMetadata *meta = (*f)(iss);
- return meta;
- }
- catch(SerializationError &e)
- {
- dstream<<"WARNING: NodeMetadata: ignoring SerializationError"<<std::endl;
- return NULL;
+ m_stringvars.clear();
+ int num_vars = readU32(is);
+ for(int i=0; i<num_vars; i++){
+ std::string name = deSerializeString(is);
+ std::string var = deSerializeLongString(is);
+ m_stringvars[name] = var;
}
+
+ m_inventory->deSerialize(is);
}
-void NodeMetadata::serialize(std::ostream &os)
+void NodeMetadata::clear()
{
- u8 buf[2];
- writeU16(buf, typeId());
- os.write((char*)buf, 2);
-
- std::ostringstream oss(std::ios_base::binary);
- serializeBody(oss);
- os<<serializeString(oss.str());
+ Metadata::clear();
+ m_inventory->clear();
}
-void NodeMetadata::registerType(u16 id, Factory f)
+bool NodeMetadata::empty() const
{
- core::map<u16, Factory>::Node *n;
- n = m_types.find(id);
- if(n)
- return;
- m_types.insert(id, f);
+ return Metadata::empty() && m_inventory->getLists().size() == 0;
}
/*
NodeMetadataList
*/
-void NodeMetadataList::serialize(std::ostream &os)
+void NodeMetadataList::serialize(std::ostream &os) const
{
- u8 buf[6];
-
- u16 version = 1;
- writeU16(buf, version);
- os.write((char*)buf, 2);
-
- u16 count = m_data.size();
- writeU16(buf, count);
- os.write((char*)buf, 2);
-
- for(core::map<v3s16, NodeMetadata*>::Iterator
- i = m_data.getIterator();
- i.atEnd()==false; i++)
+ /*
+ Version 0 is a placeholder for "nothing to see here; go away."
+ */
+
+ u16 count = countNonEmpty();
+ if (count == 0) {
+ writeU8(os, 0); // version
+ return;
+ }
+
+ writeU8(os, 1); // version
+ writeU16(os, count);
+
+ for(std::map<v3s16, NodeMetadata*>::const_iterator
+ i = m_data.begin();
+ i != m_data.end(); ++i)
{
- v3s16 p = i.getNode()->getKey();
- NodeMetadata *data = i.getNode()->getValue();
-
- u16 p16 = p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X;
- writeU16(buf, p16);
- os.write((char*)buf, 2);
+ v3s16 p = i->first;
+ NodeMetadata *data = i->second;
+ if (data->empty())
+ continue;
+
+ u16 p16 = p.Z * MAP_BLOCKSIZE * MAP_BLOCKSIZE + p.Y * MAP_BLOCKSIZE + p.X;
+ writeU16(os, p16);
data->serialize(os);
}
-
}
-void NodeMetadataList::deSerialize(std::istream &is)
+
+void NodeMetadataList::deSerialize(std::istream &is, IItemDefManager *item_def_mgr)
{
- m_data.clear();
+ clear();
- u8 buf[6];
-
- is.read((char*)buf, 2);
- u16 version = readU16(buf);
+ u8 version = readU8(is);
- if(version > 1)
- {
- dstream<<__FUNCTION_NAME<<": version "<<version<<" not supported"
- <<std::endl;
- throw SerializationError("NodeMetadataList::deSerialize");
+ if (version == 0) {
+ // Nothing
+ return;
}
-
- is.read((char*)buf, 2);
- u16 count = readU16(buf);
-
- for(u16 i=0; i<count; i++)
- {
- is.read((char*)buf, 2);
- u16 p16 = readU16(buf);
-
- v3s16 p(0,0,0);
- p.Z += p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
- p16 -= p.Z * MAP_BLOCKSIZE * MAP_BLOCKSIZE;
- p.Y += p16 / MAP_BLOCKSIZE;
- p16 -= p.Y * MAP_BLOCKSIZE;
- p.X += p16;
-
- NodeMetadata *data = NodeMetadata::deSerialize(is);
-
- if(data == NULL)
- continue;
-
- if(m_data.find(p))
- {
- dstream<<"WARNING: NodeMetadataList::deSerialize(): "
+
+ if (version != 1) {
+ std::string err_str = std::string(FUNCTION_NAME)
+ + ": version " + itos(version) + " not supported";
+ infostream << err_str << std::endl;
+ throw SerializationError(err_str);
+ }
+
+ u16 count = readU16(is);
+
+ for (u16 i=0; i < count; i++) {
+ u16 p16 = readU16(is);
+
+ v3s16 p;
+ p.Z = p16 / MAP_BLOCKSIZE / MAP_BLOCKSIZE;
+ p16 &= MAP_BLOCKSIZE * MAP_BLOCKSIZE - 1;
+ p.Y = p16 / MAP_BLOCKSIZE;
+ p16 &= MAP_BLOCKSIZE - 1;
+ p.X = p16;
+
+ if (m_data.find(p) != m_data.end()) {
+ warningstream<<"NodeMetadataList::deSerialize(): "
<<"already set data at position"
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
<<std::endl;
- delete data;
continue;
}
- m_data.insert(p, data);
+ NodeMetadata *data = new NodeMetadata(item_def_mgr);
+ data->deSerialize(is);
+ m_data[p] = data;
}
}
-
+
NodeMetadataList::~NodeMetadataList()
{
- for(core::map<v3s16, NodeMetadata*>::Iterator
- i = m_data.getIterator();
- i.atEnd()==false; i++)
- {
- delete i.getNode()->getValue();
- }
+ clear();
}
-NodeMetadata* NodeMetadataList::get(v3s16 p)
+std::vector<v3s16> NodeMetadataList::getAllKeys()
{
- core::map<v3s16, NodeMetadata*>::Node *n;
- n = m_data.find(p);
- if(n == NULL)
+ std::vector<v3s16> keys;
+
+ std::map<v3s16, NodeMetadata *>::const_iterator it;
+ for (it = m_data.begin(); it != m_data.end(); ++it)
+ keys.push_back(it->first);
+
+ return keys;
+}
+
+NodeMetadata *NodeMetadataList::get(v3s16 p)
+{
+ std::map<v3s16, NodeMetadata *>::const_iterator n = m_data.find(p);
+ if (n == m_data.end())
return NULL;
- return n->getValue();
+ return n->second;
}
void NodeMetadataList::remove(v3s16 p)
{
NodeMetadata *olddata = get(p);
- if(olddata)
- {
+ if (olddata) {
delete olddata;
- m_data.remove(p);
+ m_data.erase(p);
}
}
void NodeMetadataList::set(v3s16 p, NodeMetadata *d)
{
remove(p);
- m_data.insert(p, d);
+ m_data.insert(std::make_pair(p, d));
}
-bool NodeMetadataList::step(float dtime)
+void NodeMetadataList::clear()
{
- bool something_changed = false;
- for(core::map<v3s16, NodeMetadata*>::Iterator
- i = m_data.getIterator();
- i.atEnd()==false; i++)
- {
- v3s16 p = i.getNode()->getKey();
- NodeMetadata *meta = i.getNode()->getValue();
- bool changed = meta->step(dtime);
- if(changed)
- something_changed = true;
+ std::map<v3s16, NodeMetadata*>::iterator it;
+ for (it = m_data.begin(); it != m_data.end(); ++it) {
+ delete it->second;
}
- return something_changed;
+ m_data.clear();
}
+int NodeMetadataList::countNonEmpty() const
+{
+ int n = 0;
+ std::map<v3s16, NodeMetadata*>::const_iterator it;
+ for (it = m_data.begin(); it != m_data.end(); ++it) {
+ if (!it->second->empty())
+ n++;
+ }
+ return n;
+}
projects / oweals / minetest.git / blobdiff