3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
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 General Public License for more details.
15 You should have received a copy of the GNU 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.
20 #ifndef SERVEROBJECT_HEADER
21 #define SERVEROBJECT_HEADER
23 #include "common_irrlicht.h"
24 #include "activeobject.h"
32 * Server environment adds an active object, which gets the id 1
33 * The active object list is scanned for each client once in a while,
34 and it finds out what objects have been added that are not known
35 by the client yet. This scan is initiated by the Server class and
36 the result ends up directly to the server.
37 * A network packet is created with the info and sent to the client.
38 * Environment converts objects to static data and static data to
39 objects, based on how close players are to them.
43 class ServerEnvironment;
46 class ServerActiveObject : public ActiveObject
49 ServerActiveObject(ServerEnvironment *env, u16 id, v3f pos);
50 virtual ~ServerActiveObject();
52 // Create a certain type of ServerActiveObject
53 static ServerActiveObject* create(u8 type,
54 ServerEnvironment *env, u16 id, v3f pos,
55 const std::string &data);
58 Some simple getters/setters
61 {return m_base_position;}
62 void setBasePosition(v3f pos)
63 {m_base_position = pos;}
64 ServerEnvironment* getEnv()
69 Messages added to messages are sent to client over network.
71 virtual void step(float dtime, Queue<ActiveObjectMessage> &messages){}
74 The return value of this is passed to the client-side object
77 virtual std::string getClientInitializationData(){return "";}
80 The return value of this is passed to the server-side object
81 when it is created (converted from static to active - actually
82 the data is the static form)
84 virtual std::string getStaticData(){return "";}
86 // Number of players which know about this object
89 - Whether this object is to be removed when nobody knows about
91 - Removal is delayed to preserve the id for the time during which
92 it could be confused to some other object by some client.
93 - This is set to true by the step() method when the object wants
95 - This can be set to true by anything else too.
100 Whether the object's static data has been stored to a block
102 bool m_static_exists;
104 The block from which the object was loaded from, and in which
105 a copy of the static data resides.
107 v3s16 m_static_block;
110 // Used for creating objects based on type
111 typedef ServerActiveObject* (*Factory)
112 (ServerEnvironment *env, u16 id, v3f pos,
113 const std::string &data);
114 static void registerType(u16 type, Factory f);
116 ServerEnvironment *m_env;
120 // Used for creating objects based on type
121 static core::map<u16, Factory> m_types;
124 class TestSAO : public ServerActiveObject
127 TestSAO(ServerEnvironment *env, u16 id, v3f pos);
129 {return ACTIVEOBJECT_TYPE_TEST;}
130 static ServerActiveObject* create(ServerEnvironment *env, u16 id, v3f pos,
131 const std::string &data);
132 void step(float dtime, Queue<ActiveObjectMessage> &messages);
138 class ItemSAO : public ServerActiveObject
141 ItemSAO(ServerEnvironment *env, u16 id, v3f pos,
142 const std::string inventorystring);
144 {return ACTIVEOBJECT_TYPE_ITEM;}
145 static ServerActiveObject* create(ServerEnvironment *env, u16 id, v3f pos,
146 const std::string &data);
147 void step(float dtime, Queue<ActiveObjectMessage> &messages);
148 std::string getClientInitializationData();
149 std::string getStaticData();
150 InventoryItem* createInventoryItem();
152 std::string m_inventorystring;