Initial commit

src/content_nodemeta.cpp

@@ -0,0 +1,191 @@
+/*
+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 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.
+*/
+
+#include "content_nodemeta.h"
+#include "nodemetadata.h"
+#include "nodetimer.h"
+#include "inventory.h"
+#include "log.h"
+#include "serialization.h"
+#include "util/serialize.h"
+#include "util/string.h"
+#include "constants.h" // MAP_BLOCKSIZE
+#include <sstream>
+
+#define NODEMETA_GENERIC 1
+#define NODEMETA_SIGN 14
+#define NODEMETA_CHEST 15
+#define NODEMETA_FURNACE 16
+#define NODEMETA_LOCKABLE_CHEST 17
+
+// Returns true if node timer must be set
+static bool content_nodemeta_deserialize_legacy_body(
+		std::istream &is, s16 id, NodeMetadata *meta)
+{
+	meta->clear();
+
+	if(id == NODEMETA_GENERIC) // GenericNodeMetadata (0.4-dev)
+	{
+		meta->getInventory()->deSerialize(is);
+		deSerializeString32(is);  // m_text
+		deSerializeString16(is);  // m_owner
+
+		meta->setString("infotext",deSerializeString16(is));
+		meta->setString("formspec",deSerializeString16(is));
+		readU8(is);  // m_allow_text_input
+		readU8(is);  // m_allow_removal
+		readU8(is);  // m_enforce_owner
+
+		int num_vars = readU32(is);
+		for(int i=0; i<num_vars; i++){
+			std::string name = deSerializeString16(is);
+			std::string var = deSerializeString32(is);
+			meta->setString(name, var);
+		}
+		return false;
+	}
+	else if(id == NODEMETA_SIGN) // SignNodeMetadata
+	{
+		meta->setString("text", deSerializeString16(is));
+		//meta->setString("infotext","\"${text}\"");
+		meta->setString("infotext",
+				std::string("\"") + meta->getString("text") + "\"");
+		meta->setString("formspec","field[text;;${text}]");
+		return false;
+	}
+	else if(id == NODEMETA_CHEST) // ChestNodeMetadata
+	{
+		meta->getInventory()->deSerialize(is);
+
+		// Rename inventory list "0" to "main"
+		Inventory *inv = meta->getInventory();
+		if(!inv->getList("main") && inv->getList("0")){
+			inv->getList("0")->setName("main");
+		}
+		assert(inv->getList("main") && !inv->getList("0"));
+
+		meta->setString("formspec","size[8,9]"
+				"list[current_name;main;0,0;8,4;]"
+				"list[current_player;main;0,5;8,4;]");
+		return false;
+	}
+	else if(id == NODEMETA_LOCKABLE_CHEST) // LockingChestNodeMetadata
+	{
+		meta->setString("owner", deSerializeString16(is));
+		meta->getInventory()->deSerialize(is);
+
+		// Rename inventory list "0" to "main"
+		Inventory *inv = meta->getInventory();
+		if(!inv->getList("main") && inv->getList("0")){
+			inv->getList("0")->setName("main");
+		}
+		assert(inv->getList("main") && !inv->getList("0"));
+
+		meta->setString("formspec","size[8,9]"
+				"list[current_name;main;0,0;8,4;]"
+				"list[current_player;main;0,5;8,4;]");
+		return false;
+	}
+	else if(id == NODEMETA_FURNACE) // FurnaceNodeMetadata
+	{
+		meta->getInventory()->deSerialize(is);
+		int temp = 0;
+		is>>temp;
+		meta->setString("fuel_totaltime", ftos((float)temp/10));
+		temp = 0;
+		is>>temp;
+		meta->setString("fuel_time", ftos((float)temp/10));
+		temp = 0;
+		is>>temp;
+		//meta->setString("src_totaltime", ftos((float)temp/10));
+		temp = 0;
+		is>>temp;
+		meta->setString("src_time", ftos((float)temp/10));
+
+		meta->setString("formspec","size[8,9]"
+			"list[current_name;fuel;2,3;1,1;]"
+			"list[current_name;src;2,1;1,1;]"
+			"list[current_name;dst;5,1;2,2;]"
+			"list[current_player;main;0,5;8,4;]");
+		return true;
+	}
+	else
+	{
+		throw SerializationError("Unknown legacy node metadata");
+	}
+}
+
+static bool content_nodemeta_deserialize_legacy_meta(
+		std::istream &is, NodeMetadata *meta)
+{
+	// Read id
+	s16 id = readS16(is);
+
+	// Read data
+	std::string data = deSerializeString16(is);
+	std::istringstream tmp_is(data, std::ios::binary);
+	return content_nodemeta_deserialize_legacy_body(tmp_is, id, meta);
+}
+
+void content_nodemeta_deserialize_legacy(std::istream &is,
+		NodeMetadataList *meta, NodeTimerList *timers,
+		IItemDefManager *item_def_mgr)
+{
+	meta->clear();
+	timers->clear();
+
+	u16 version = readU16(is);
+
+	if(version > 1)
+	{
+		infostream<<FUNCTION_NAME<<": version "<<version<<" not supported"
+				<<std::endl;
+		throw SerializationError(FUNCTION_NAME);
+	}
+
+	u16 count = readU16(is);
+
+	for(u16 i=0; i<count; i++)
+	{
+		u16 p16 = readU16(is);
+
+		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(meta->get(p) != NULL)
+		{
+			warningstream<<FUNCTION_NAME<<": "
+					<<"already set data at position"
+					<<"("<<p.X<<","<<p.Y<<","<<p.Z<<"): Ignoring."
+					<<std::endl;
+			continue;
+		}
+
+		NodeMetadata *data = new NodeMetadata(item_def_mgr);
+		bool need_timer = content_nodemeta_deserialize_legacy_meta(is, data);
+		meta->set(p, data);
+
+		if(need_timer)
+			timers->set(NodeTimer(1., 0., p));
+	}
+}