advtrains_train_subway/textures/advtrains_subway_wagon_line.png

/*
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
ofs	hex dump	ascii
0000	89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 02 00 00 00 02 00 01 03 00 00 00 ce b6 46	.PNG........IHDR...............F
0020	b9 00 00 00 06 50 4c 54 45 00 00 00 ff ff ff a5 d9 9f dd 00 00 00 01 74 52 4e 53 00 40 e6 d8 66	.....PLTE..............tRNS.@..f
0040	00 00 00 43 49 44 41 54 78 9c ed cc 01 11 00 10 00 00 b1 97 5c 35 cd 68 e1 dc d9 02 ac 00 00 00	...CIDATx...........\5.h........
0060	00 00 00 00 00 00 00 00 e0 ae b9 aa c6 16 fc 1d 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00	................................
0080	00 00 00 00 bc e4 00 b1 2d 11 f9 01 46 96 e7 00 00 00 00 49 45 4e 44 ae 42 60 82	........-...F......IEND.B`.