src/staticobject.h

   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 #pragma once
  21
  22 #include "irrlichttypes_bloated.h"
  23 #include <string>
  24 #include <sstream>
  25 #include <vector>
  26 #include <map>
  27 #include "debug.h"
  28
  29 class ServerActiveObject;
  30
  31 struct StaticObject
  32 {
  33         u8 type = 0;
  34         v3f pos;
  35         std::string data;
  36
  37         StaticObject() = default;
  38         StaticObject(const ServerActiveObject *s_obj, const v3f &pos_);
  39
  40         void serialize(std::ostream &os);
  41         void deSerialize(std::istream &is, u8 version);
  42 };
  43
  44 class StaticObjectList
  45 {
  46 public:
  47         /*
  48                 Inserts an object to the container.
  49                 Id must be unique (active) or 0 (stored).
  50         */
  51         void insert(u16 id, const StaticObject &obj)
  52         {
  53                 if(id == 0)
  54                 {
  55                         m_stored.push_back(obj);
  56                 }
  57                 else
  58                 {
  59                         if(m_active.find(id) != m_active.end())
  60                         {
  61                                 dstream<<"ERROR: StaticObjectList::insert(): "
  62                                                 <<"id already exists"<<std::endl;
  63                                 FATAL_ERROR("StaticObjectList::insert()");
  64                         }
  65                         m_active[id] = obj;
  66                 }
  67         }
  68
  69         void remove(u16 id)
  70         {
  71                 assert(id != 0); // Pre-condition
  72                 if(m_active.find(id) == m_active.end())
  73                 {
  74                         warningstream<<"StaticObjectList::remove(): id="<<id
  75                                         <<" not found"<<std::endl;
  76                         return;
  77                 }
  78                 m_active.erase(id);
  79         }
  80
  81         void serialize(std::ostream &os);
  82         void deSerialize(std::istream &is);
  83
  84         /*
  85                 NOTE: When an object is transformed to active, it is removed
  86                 from m_stored and inserted to m_active.
  87                 The caller directly manipulates these containers.
  88         */
  89         std::vector<StaticObject> m_stored;
  90         std::map<u16, StaticObject> m_active;
  91
  92 private:
  93 };