X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fnodemetadata.cpp;h=2a9131be0b014c55a2cad19695f12bb414886f36;hb=2c637ce1c26145269b09c62afb451240a8def401;hp=fca4e5b845b14881d52d907022952f327755d87d;hpb=9e683fff50ba4fef407613adf8407b31adca4596;p=minetest.git

diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
index fca4e5b84..2a9131be0 100644
--- a/src/nodemetadata.cpp
+++ b/src/nodemetadata.cpp
@@ -1,232 +1,234 @@
 /*
-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>
 
 /*
 	NodeMetadata
 */
 
-core::map<u16, NodeMetadata::Factory> NodeMetadata::m_types;
-
-NodeMetadata::NodeMetadata()
+NodeMetadata::NodeMetadata(IGameDef *gamedef):
+	m_stringvars(),
+	m_inventory(new Inventory(gamedef->idef()))
 {
 }
 
 NodeMetadata::~NodeMetadata()
 {
+	delete m_inventory;
 }
 
-NodeMetadata* NodeMetadata::deSerialize(std::istream &is)
+void NodeMetadata::serialize(std::ostream &os) const
 {
-	u8 buf[2];
-	is.read((char*)buf, 2);
-	s16 id = readS16(buf);
-
-	core::map<u16, Factory>::Node *n;
-	n = m_types.find(id);
-	if(n == NULL)
-	{
-		dstream<<"NodeMetadata(): No factory for typeId="<<id<<std::endl;
-		throw SerializationError("Unknown metadata id");
+	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);
 	}
-	
-	Factory f = n->getValue();
-	NodeMetadata *meta = (*f)(is);
-	return meta;
+
+	m_inventory->serialize(os);
 }
 
-void NodeMetadata::serialize(std::ostream &os)
+void NodeMetadata::deSerialize(std::istream &is)
 {
-	u8 buf[2];
-	writeU16(buf, typeId());
-	os.write((char*)buf, 2);
+	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;
+	}
 
-	serializeBody(os);
+	m_inventory->deSerialize(is);
 }
 
-void NodeMetadata::registerType(u16 id, Factory f)
+void NodeMetadata::clear()
 {
-	core::map<u16, Factory>::Node *n;
-	n = m_types.find(id);
-	if(n)
-		return;
-	m_types.insert(id, f);
+	m_stringvars.clear();
+	m_inventory->clear();
 }
 
 /*
-	SignNodeMetadata
+	NodeMetadataList
 */
 
-SignNodeMetadata::SignNodeMetadata(std::string text):
-	m_text(text)
-{
-	NodeMetadata::registerType(typeId(), create);
-}
-u16 SignNodeMetadata::typeId() const
-{
-	return CONTENT_SIGN_WALL;
-}
-NodeMetadata* SignNodeMetadata::create(std::istream &is)
+void NodeMetadataList::serialize(std::ostream &os) const
 {
-	std::string text = deSerializeString(is);
-	return new SignNodeMetadata(text);
-}
-NodeMetadata* SignNodeMetadata::clone()
-{
-	return new SignNodeMetadata(m_text);
-}
-void SignNodeMetadata::serializeBody(std::ostream &os)
-{
-	os<<serializeString(m_text);
-}
-std::string SignNodeMetadata::infoText()
-{
-	return std::string("\"")+m_text+"\"";
-}
-
-/*
-	ChestNodeMetadata
-*/
+	/*
+		Version 0 is a placeholder for "nothing to see here; go away."
+	*/
 
-ChestNodeMetadata::ChestNodeMetadata()
-{
-	NodeMetadata::registerType(typeId(), create);
-}
-u16 ChestNodeMetadata::typeId() const
-{
-	return CONTENT_CHEST;
-}
-NodeMetadata* ChestNodeMetadata::create(std::istream &is)
-{
-	return new ChestNodeMetadata();
-}
-NodeMetadata* ChestNodeMetadata::clone()
-{
-	return new ChestNodeMetadata();
-}
-void ChestNodeMetadata::serializeBody(std::ostream &os)
-{
-}
-std::string ChestNodeMetadata::infoText()
-{
-	return "Chest";
-}
+	if(m_data.empty()){
+		writeU8(os, 0); // version
+		return;
+	}
 
-/*
-	NodeMetadatalist
-*/
+	writeU8(os, 1); // version
 
-void NodeMetadataList::serialize(std::ostream &os)
-{
-	u8 buf[6];
-	
 	u16 count = m_data.size();
-	writeU16(buf, count);
-	os.write((char*)buf, 2);
+	writeU16(os, count);
 
-	for(core::map<v3s16, NodeMetadata*>::Iterator
-			i = m_data.getIterator();
-			i.atEnd()==false; i++)
+	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();
-		
+		v3s16 p = i->first;
+		NodeMetadata *data = i->second;
+
 		u16 p16 = p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X;
-		writeU16(buf, p16);
-		os.write((char*)buf, 2);
+		writeU16(os, p16);
 
 		data->serialize(os);
 	}
-	
 }
-void NodeMetadataList::deSerialize(std::istream &is)
+
+void NodeMetadataList::deSerialize(std::istream &is, IGameDef *gamedef)
 {
-	m_data.clear();
+	clear();
+
+	u8 version = readU8(is);
+
+	if(version == 0){
+		// Nothing
+		return;
+	}
+
+	if(version != 1){
+		infostream<<__FUNCTION_NAME<<": version "<<version<<" not supported"
+				<<std::endl;
+		throw SerializationError("NodeMetadataList::deSerialize");
+	}
+
+	u16 count = readU16(is);
 
-	u8 buf[6];
-	
-	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;
-		
-		if(m_data.find(p))
+		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())
 		{
-			dstream<<"ERROR: NodeMetadataList::deSerialize(): "
+			infostream<<"WARNING: NodeMetadataList::deSerialize(): "
 					<<"already set data at position"
-					<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
+					<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
 					<<std::endl;
-			throw SerializationError("NodeMetadataList::deSerialize()");
+			continue;
 		}
 
-		NodeMetadata *data = NodeMetadata::deSerialize(is);
-		
-		m_data.insert(p, data);
+		NodeMetadata *data = new NodeMetadata(gamedef);
+		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();
+}
+
+std::vector<v3s16> NodeMetadataList::getAllKeys()
+{
+	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)
+NodeMetadata *NodeMetadataList::get(v3s16 p)
 {
-	core::map<v3s16, NodeMetadata*>::Node *n;
-	n = m_data.find(p);
-	if(n == NULL)
+	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));
+}
+
+void NodeMetadataList::clear()
+{
+	std::map<v3s16, NodeMetadata*>::iterator it;
+	for (it = m_data.begin(); it != m_data.end(); ++it) {
+		delete it->second;
+	}
+	m_data.clear();
+}
+
+std::string NodeMetadata::getString(const std::string &name,
+	unsigned short recursion) const
+{
+	StringMap::const_iterator it = m_stringvars.find(name);
+	if (it == m_stringvars.end())
+		return "";
+
+	return resolveString(it->second, recursion);
+}
+
+void NodeMetadata::setString(const std::string &name, const std::string &var)
+{
+	if (var.empty()) {
+		m_stringvars.erase(name);
+	} else {
+		m_stringvars[name] = var;
+	}
+}
+
+std::string NodeMetadata::resolveString(const std::string &str,
+	unsigned short recursion) const
+{
+	if (recursion > 1) {
+		return str;
+	}
+	if (str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
+		return getString(str.substr(2, str.length() - 3), recursion + 1);
+	}
+	return str;
 }