src/staticobject.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "staticobject.h"
  21 #include "util/serialize.h"
  22 #include "log.h"
  23
  24 void StaticObject::serialize(std::ostream &os)
  25 {
  26         // type
  27         writeU8(os, type);
  28         // pos
  29         writeV3F1000(os, pos);
  30         // data
  31         os<<serializeString(data);
  32 }
  33 void StaticObject::deSerialize(std::istream &is, u8 version)
  34 {
  35         // type
  36         type = readU8(is);
  37         // pos
  38         pos = readV3F1000(is);
  39         // data
  40         data = deSerializeString(is);
  41 }
  42
  43 void StaticObjectList::serialize(std::ostream &os)
  44 {
  45         // version
  46         u8 version = 0;
  47         writeU8(os, version);
  48
  49         // count
  50         size_t count = m_stored.size() + m_active.size();
  51         // Make sure it fits into u16, else it would get truncated and cause e.g.
  52         // issue #2610 (Invalid block data in database: unsupported NameIdMapping version).
  53         if (count > U16_MAX) {
  54                 errorstream << "StaticObjectList::serialize(): "
  55                         << "too many objects (" << count << ") in list, "
  56                         << "not writing them to disk." << std::endl;
  57                 writeU16(os, 0);  // count = 0
  58                 return;
  59         }
  60         writeU16(os, count);
  61
  62         for(std::vector<StaticObject>::iterator
  63                         i = m_stored.begin();
  64                         i != m_stored.end(); ++i) {
  65                 StaticObject &s_obj = *i;
  66                 s_obj.serialize(os);
  67         }
  68         for(std::map<u16, StaticObject>::iterator
  69                         i = m_active.begin();
  70                         i != m_active.end(); ++i)
  71         {
  72                 StaticObject s_obj = i->second;
  73                 s_obj.serialize(os);
  74         }
  75 }
  76 void StaticObjectList::deSerialize(std::istream &is)
  77 {
  78         // version
  79         u8 version = readU8(is);
  80         // count
  81         u16 count = readU16(is);
  82         for(u16 i = 0; i < count; i++) {
  83                 StaticObject s_obj;
  84                 s_obj.deSerialize(is, version);
  85                 m_stored.push_back(s_obj);
  86         }
  87 }
  88