X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fnodemetadata.cpp;h=d4da7a5ed4dc3d3620f58419fb8785928a5f4f9b;hb=60350699c792b816b20704d59cfbda0894cdba39;hp=21f55a0ca463706477bbd60a8032f137ba71c857;hpb=d1d57cf5c34c9a4626fd8e3b40db3ea321b40335;p=dragonfireclient.git

diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
index 21f55a0ca..d4da7a5ed 100644
--- a/src/nodemetadata.cpp
+++ b/src/nodemetadata.cpp
@@ -1,465 +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
 {
-	// 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;
+	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);
 	}
-}
 
-void NodeMetadata::serialize(std::ostream &os)
-{
-	u8 buf[2];
-	writeU16(buf, typeId());
-	os.write((char*)buf, 2);
-	
-	std::ostringstream oss(std::ios_base::binary);
-	serializeBody(oss);
-	os<<serializeString(oss.str());
+	m_inventory->serialize(os);
 }
 
-void NodeMetadata::registerType(u16 id, Factory f)
+void NodeMetadata::deSerialize(std::istream &is)
 {
-	core::map<u16, Factory>::Node *n;
-	n = m_types.find(id);
-	if(n)
-		return;
-	m_types.insert(id, f);
-}
-
-/*
-	SignNodeMetadata
-*/
+	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;
+	}
 
-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)
-{
-	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+"\"";
+	m_inventory->deSerialize(is);
 }
 
-/*
-	ChestNodeMetadata
-*/
-
-ChestNodeMetadata::ChestNodeMetadata()
-{
-	NodeMetadata::registerType(typeId(), create);
-	
-	m_inventory = new Inventory();
-	m_inventory->addList("0", 8*4);
-}
-ChestNodeMetadata::~ChestNodeMetadata()
+void NodeMetadata::clear()
 {
-	delete m_inventory;
-}
-u16 ChestNodeMetadata::typeId() const
-{
-	return CONTENT_CHEST;
-}
-NodeMetadata* ChestNodeMetadata::create(std::istream &is)
-{
-	ChestNodeMetadata *d = new ChestNodeMetadata();
-	d->m_inventory->deSerialize(is);
-	return d;
-}
-NodeMetadata* ChestNodeMetadata::clone()
-{
-	ChestNodeMetadata *d = new ChestNodeMetadata();
-	*d->m_inventory = *m_inventory;
-	return d;
-}
-void ChestNodeMetadata::serializeBody(std::ostream &os)
-{
-	m_inventory->serialize(os);
-}
-std::string ChestNodeMetadata::infoText()
-{
-	return "Chest";
+	m_stringvars.clear();
+	m_inventory->clear();
 }
 
 /*
-	FurnaceNodeMetadata
+	NodeMetadataList
 */
 
-FurnaceNodeMetadata::FurnaceNodeMetadata()
-{
-	NodeMetadata::registerType(typeId(), create);
-	
-	m_inventory = new Inventory();
-	m_inventory->addList("fuel", 1);
-	m_inventory->addList("src", 1);
-	m_inventory->addList("dst", 1);
-
-	m_step_accumulator = 0;
-	m_fuel_totaltime = 0;
-	m_fuel_time = 0;
-	m_src_totaltime = 0;
-	m_src_time = 0;
-}
-FurnaceNodeMetadata::~FurnaceNodeMetadata()
-{
-	delete m_inventory;
-}
-u16 FurnaceNodeMetadata::typeId() const
-{
-	return CONTENT_FURNACE;
-}
-NodeMetadata* FurnaceNodeMetadata::clone()
-{
-	FurnaceNodeMetadata *d = new FurnaceNodeMetadata();
-	*d->m_inventory = *m_inventory;
-	return d;
-}
-NodeMetadata* FurnaceNodeMetadata::create(std::istream &is)
-{
-	FurnaceNodeMetadata *d = new FurnaceNodeMetadata();
-	d->m_inventory->deSerialize(is);
-	int temp;
-	is>>temp;
-	d->m_fuel_totaltime = (float)temp/10;
-	is>>temp;
-	d->m_fuel_time = (float)temp/10;
-	return d;
-}
-void FurnaceNodeMetadata::serializeBody(std::ostream &os)
-{
-	m_inventory->serialize(os);
-	os<<itos(m_fuel_totaltime*10)<<" ";
-	os<<itos(m_fuel_time*10)<<" ";
-}
-std::string FurnaceNodeMetadata::infoText()
-{
-	//return "Furnace";
-	if(m_fuel_time >= m_fuel_totaltime)
-	{
-		InventoryList *src_list = m_inventory->getList("src");
-		assert(src_list);
-		InventoryItem *src_item = src_list->getItem(0);
-
-		if(src_item)
-			return "Furnace is out of fuel";
-		else
-			return "Furnace is inactive";
-	}
-	else
-	{
-		std::string s = "Furnace is active (";
-		s += itos(m_fuel_time/m_fuel_totaltime*100);
-		s += "%)";
-		return s;
-	}
-}
-void FurnaceNodeMetadata::inventoryModified()
+void NodeMetadataList::serialize(std::ostream &os) const
 {
-	dstream<<"Furnace inventory modification callback"<<std::endl;
-}
-bool FurnaceNodeMetadata::step(float dtime)
-{
-	// Update at a fixed frequency
-	const float interval = 0.5;
-	m_step_accumulator += dtime;
-	if(m_step_accumulator < interval)
-		return false;
-	m_step_accumulator -= interval;
-	dtime = interval;
-
-	//dstream<<"Furnace step dtime="<<dtime<<std::endl;
-	
-	InventoryList *dst_list = m_inventory->getList("dst");
-	assert(dst_list);
-
-	InventoryList *src_list = m_inventory->getList("src");
-	assert(src_list);
-	InventoryItem *src_item = src_list->getItem(0);
-
-	if(ItemSpec(ITEM_MATERIAL, CONTENT_TREE).checkItem(src_item)
-			&& dst_list->itemFits(0, new CraftItem("lump_of_coal", 1)))
-	{
-		m_src_totaltime = 3;
-	}
-	else
-	{
-		m_src_time = 0;
-		m_src_totaltime = 0;
-	}
+	/*
+		Version 0 is a placeholder for "nothing to see here; go away."
+	*/
 
-	if(m_fuel_time < m_fuel_totaltime)
-	{
-		//dstream<<"Furnace is active"<<std::endl;
-		m_fuel_time += dtime;
-		m_src_time += dtime;
-		if(m_src_time >= m_src_totaltime && m_src_totaltime > 0.001)
-		{
-			if(ItemSpec(ITEM_MATERIAL, CONTENT_TREE).checkItem(src_item))
-			{
-				src_list->decrementMaterials(1);
-				dst_list->addItem(0, new CraftItem("lump_of_coal", 1));
-				m_src_time = 0;
-				m_src_totaltime = 0;
-			}
-		}
-		return true;
-	}
-	
-	if(src_item == NULL || m_src_totaltime < 0.001)
-	{
-		return false;
-	}
-	
-	bool changed = false;
-
-	//dstream<<"Furnace is out of fuel"<<std::endl;
-
-	InventoryList *fuel_list = m_inventory->getList("fuel");
-	assert(fuel_list);
-	InventoryItem *fuel_item = fuel_list->getItem(0);
-
-	if(ItemSpec(ITEM_MATERIAL, CONTENT_TREE).checkItem(fuel_item))
-	{
-		m_fuel_totaltime = 10;
-		m_fuel_time = 0;
-		fuel_list->decrementMaterials(1);
-		changed = true;
-	}
-	else if(ItemSpec(ITEM_MATERIAL, CONTENT_WOOD).checkItem(fuel_item))
-	{
-		m_fuel_totaltime = 5;
-		m_fuel_time = 0;
-		fuel_list->decrementMaterials(1);
-		changed = true;
-	}
-	else if(ItemSpec(ITEM_CRAFT, "lump_of_coal").checkItem(fuel_item))
-	{
-		m_fuel_totaltime = 10;
-		m_fuel_time = 0;
-		fuel_list->decrementMaterials(1);
-		changed = true;
-	}
-	else
-	{
-		//dstream<<"No fuel found"<<std::endl;
+	if(m_data.empty()){
+		writeU8(os, 0); // version
+		return;
 	}
 
-	return changed;
-}
-
-/*
-	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;
-		
-		NodeMetadata *data = NodeMetadata::deSerialize(is);
-
-		if(data == NULL)
-			continue;
-		
-		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<<"WARNING: NodeMetadataList::deSerialize(): "
+			infostream<<"WARNING: 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(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));
 }
 
-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;
-		/*if(res.inventory_changed)
-		{
-			std::string inv_id;
-			inv_id += "nodemeta:";
-			inv_id += itos(p.X);
-			inv_id += ",";
-			inv_id += itos(p.Y);
-			inv_id += ",";
-			inv_id += itos(p.Z);
-			InventoryContext c;
-			c.current_player = NULL;
-			inv_mgr->inventoryModified(&c, inv_id);
-		}*/
+	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 something_changed;
+	return str;
 }