src/staticobject.h

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 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 #ifndef STATICOBJECT_HEADER
  21 #define STATICOBJECT_HEADER
  22
  23 #include "irrlichttypes_bloated.h"
  24 #include <string>
  25 #include <sstream>
  26 #include "debug.h"
  27
  28 struct StaticObject
  29 {
  30         u8 type;
  31         v3f pos;
  32         std::string data;
  33
  34         StaticObject():
  35                 type(0),
  36                 pos(0,0,0)
  37         {
  38         }
  39         StaticObject(u8 type_, v3f pos_, const std::string &data_):
  40                 type(type_),
  41                 pos(pos_),
  42                 data(data_)
  43         {
  44         }
  45
  46         void serialize(std::ostream &os);
  47         void deSerialize(std::istream &is, u8 version);
  48 };
  49
  50 class StaticObjectList
  51 {
  52 public:
  53         /*
  54                 Inserts an object to the container.
  55                 Id must be unique or 0.
  56         */
  57         void insert(u16 id, StaticObject obj)
  58         {
  59                 if(id == 0)
  60                 {
  61                         m_stored.push_back(obj);
  62                 }
  63                 else
  64                 {
  65                         if(m_active.find(id) != NULL)
  66                         {
  67                                 dstream<<"ERROR: StaticObjectList::insert(): "
  68                                                 <<"id already exists"<<std::endl;
  69                                 assert(0);
  70                                 return;
  71                         }
  72                         m_active.insert(id, obj);
  73                 }
  74         }
  75
  76         void remove(u16 id)
  77         {
  78                 assert(id != 0);
  79                 if(m_active.find(id) == NULL)
  80                 {
  81                         dstream<<"WARNING: StaticObjectList::remove(): id="<<id
  82                                         <<" not found"<<std::endl;
  83                         return;
  84                 }
  85                 m_active.remove(id);
  86         }
  87
  88         void serialize(std::ostream &os);
  89         void deSerialize(std::istream &is);
  90
  91         /*
  92                 NOTE: When an object is transformed to active, it is removed
  93                 from m_stored and inserted to m_active.
  94                 The caller directly manipulates these containers.
  95         */
  96         core::list<StaticObject> m_stored;
  97         core::map<u16, StaticObject> m_active;
  98
  99 private:
 100 };
 101
 102 #endif
 103