added missing file

src/staticobject.h

+/*
+Minetest-c55
+Copyright (C) 2010-2011 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
+(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.
+
+You should have received a copy of the GNU 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.
+*/
+
+#ifndef STATICOBJECT_HEADER
+#define STATICOBJECT_HEADER
+
+#include "common_irrlicht.h"
+#include <string>
+#include <sstream>
+#include "utility.h"
+
+struct StaticObject
+{
+	u8 type;
+	v3f pos;
+	std::string data;
+
+	StaticObject():
+		type(0),
+		pos(0,0,0)
+	{
+	}
+	StaticObject(u8 type_, v3f pos_, const std::string &data_):
+		type(type_),
+		pos(pos_),
+		data(data_)
+	{
+	}
+
+	void serialize(std::ostream &os)
+	{
+		char buf[12];
+		// type
+		buf[0] = type;
+		os.write(buf, 1);
+		// pos
+		writeV3S32((u8*)buf, v3s32(pos.X*1000,pos.Y*1000,pos.Z*1000));
+		os.write(buf, 12);
+		// data
+		os<<serializeString(data);
+	}
+	void deSerialize(std::istream &is, u8 version)
+	{
+		char buf[12];
+		// type
+		is.read(buf, 1);
+		type = buf[0];
+		// pos
+		is.read(buf, 12);
+		v3s32 intp = readV3S32((u8*)buf);
+		pos.X = (f32)intp.X/1000;
+		pos.Y = (f32)intp.Y/1000;
+		pos.Z = (f32)intp.Z/1000;
+		// data
+		data = deSerializeString(is);
+	}
+};
+
+class StaticObjectList
+{
+public:
+	/*
+		Inserts an object to the container.
+		Id must be unique or 0.
+	*/
+	void insert(u16 id, StaticObject obj)
+	{
+		if(id == 0)
+		{
+			m_stored.push_back(obj);
+		}
+		else
+		{
+			if(m_active.find(id) != NULL)
+			{
+				dstream<<"ERROR: StaticObjectList::insert(): "
+						<<"id already exists"<<std::endl;
+				assert(0);
+				return;
+			}
+			m_active.insert(id, obj);
+		}
+	}
+
+	void remove(u16 id)
+	{
+		assert(id != 0);
+		if(m_active.find(id) == NULL)
+		{
+			dstream<<"WARNING: StaticObjectList::remove(): id="<<id
+					<<" not found"<<std::endl;
+			return;
+		}
+		m_active.remove(id);
+	}
+
+	void serialize(std::ostream &os)
+	{
+		char buf[12];
+		// version
+		buf[0] = 0;
+		os.write(buf, 1);
+		// count
+		u16 count = m_stored.size() + m_active.size();
+		writeU16((u8*)buf, count);
+		os.write(buf, 2);
+		for(core::list<StaticObject>::Iterator
+				i = m_stored.begin();
+				i != m_stored.end(); i++)
+		{
+			StaticObject &s_obj = *i;
+			s_obj.serialize(os);
+		}
+		for(core::map<u16, StaticObject>::Iterator
+				i = m_active.getIterator();
+				i.atEnd()==false; i++)
+		{
+			StaticObject s_obj = i.getNode()->getValue();
+			s_obj.serialize(os);
+		}
+	}
+	void deSerialize(std::istream &is)
+	{
+		char buf[12];
+		// version
+		is.read(buf, 1);
+		u8 version = buf[0];
+		// count
+		is.read(buf, 2);
+		u16 count = readU16((u8*)buf);
+		for(u16 i=0; i<count; i++)
+		{
+			StaticObject s_obj;
+			s_obj.deSerialize(is, version);
+			m_stored.push_back(s_obj);
+		}
+	}
+	
+	/*
+		NOTE: When an object is transformed to active, it is removed
+		from m_stored and inserted to m_active.
+		The caller directly manipulates these containers.
+	*/
+	core::list<StaticObject> m_stored;
+	core::map<u16, StaticObject> m_active;
+
+private:
+};
+
+#endif
+