server/include/newserver.h


/*
    CrossFire, A Multiplayer game for the X Window System

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

    The author can be reached via e-mail to crossfire-devel@real-time.com
*/

/*
    newserver.h defines various structures and values that are use for the
    new client server communication method.  Values defined here are only
    used on the server side code.  For shared client/server values, see
    newclient.h
*/

#ifndef NEWSERVER_H
#define NEWSERVER_H

/* Reduce this from 50 to 5 - as it is now, there will never be more
 * than 3 anyways.
 */

#define NUM_LOOK_OBJECTS 50

struct MapCell
{
  UUID player;                 // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient
  int count;                    /* This is really darkness in the map1 command */
  uint16 faces[MAP_LAYERS];
  uint16 smooth[MAP_LAYERS];
  unsigned char stat_hp;        // health of something in this space, or 0
  unsigned char flags;
};

/* This basically defines the largest size an 
 * archetype may be - it is used for allocation of
 * some structures, as well as determining how far
 * we should look for the heads of big images.
 */
#define MAX_HEAD_OFFSET     8

#define MAX_CLIENT_X (MAP_CLIENT_X + MAX_HEAD_OFFSET)
#define MAX_CLIENT_Y (MAP_CLIENT_Y + MAX_HEAD_OFFSET)

struct Map
{
  struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y];
};

/* True max is 16383 given current map compaction method */
# define MAXANIMNUM  2000

struct statsinfo
{
  char *range, *title;
};

/* This contains basic information on the socket structure.  status is its
 * current state.  we set up our on buffers for sending/receiving, so we can
 * handle some higher level functions.  fd is the actual file descriptor we
 * are using.
 */

enum Sock_Status { Ns_Add, Ns_Dead };

/* Only one map mode can actually be used, so lets make it a switch
 * instead of having a bunch of different fields that needed to
 * get toggled.
 */
enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 };

/* The following is the setup for a ring buffer for storing outbut
 * data that the OS can't handle right away.
 */

struct Buffer
{
  char data[SOCKETBUFSIZE];
  int start;
  int len;
};

/* how many times we are allowed to give the wrong password before being kicked. */
#define MAX_PASSWORD_FAILURES 5

ACC_CLASS (client_socket) // should become player when newsocket is a baseclass of player
struct client_socket : zero_initialised, attachable_base
{
  enum Sock_Status status;
  int ACC (RW, fd);
  unsigned int inbuf_len;                 // number of bytes valid in inbuf
  struct Map lastmap;
  size_t faces_sent_len;        /* This is the number of elements allocated in faces_sent[] */
  uint8 *faces_sent;            /* This is a bitmap on sent face status */
  uint8 anims_sent[MAXANIMNUM];
  struct statsinfo stats;

  char *ACC (RW, host);                   /* Which host it is connected from (ip address) */
  uint8 ACC (RW, password_fails);         /* how many times the player has failed to give the right password */
  Buffer outputbuffer;          /* For undeliverable data */
  uint32 ACC (RO, facecache):1;           /* If true, client is caching images */
  uint32 ACC (RO, sent_scroll):1;
  uint32 ACC (RO, sound):1;               /* does the client want sound */
  uint32 ACC (RO, exp64):1;               /* Client wants 64 bit exp data, as well as skill data */
  uint32 ACC (RO, newmapcmd):1;           /* Send newmap command when entering new map SMACFIGGEN */
  uint32 ACC (RO, plugincmd):1;           /* CF+ extend the protocol through a plug-in */
  uint32 ACC (RO, mapinfocmd):1;          /* CF+ return map info and send map change info */
  uint32 ACC (RO, extcmd):1;              /* CF+ call into extensions/plugins */
  uint32 ACC (RO, extmap):1;              /* CF+ extend map comamnd with extra data */
  uint32 ACC (RO, buggy_mapscroll):1;     /* CF+ client crashes on large mapscrolls */
  uint32 ACC (RO, darkness):1;            /* True if client wants darkness information */
  uint32 ACC (RO, image2):1;              /* Client wants image2/face2 commands */
  uint32 ACC (RO, update_look):1;         /* If true, we need to send the look window */
  uint32 ACC (RO, can_write):1;           /* Can we write to this socket? */
  uint32 ACC (RO, has_readable_type):1;   /* If true client accept additional text information
                                   used to arrange text in books, scrolls, or scripted dialogs */
  uint32 ACC (RO, monitor_spells):1;      /* Client wishes to be informed when their spell list changes */
  uint32 ACC (RO, ext_mapinfos):1;        /* If true client accept additionnal info on maps */
  /* Below are flags for extedend infos to pass to client 
   * with S->C mapextended command */
  uint32 ACC (RO, EMI_smooth):1;          /* Send smooth in extendmapinfos */
  uint32 ACC (RW, supported_readables);   /* each bit is a readable supported by client */
  uint32 ACC (RW, cs_version), ACC (RW, sc_version);        /* versions of the client */
  enum MapMode mapmode;         /* Type of map commands the client wants. */
  uint16 ACC (RW, look_position);         /* start of drawing of look window */
  uint8 ACC (RW, mapx), ACC (RW, mapy);             /* How large a map the client wants */
  uint8 ACC (RW, itemcmd);                /* What version of the 'item' protocol command to use */
  uint8 ACC (RW, faceset);                /* Set the client is using, default 0 */

  maptile *ACC (RW, current_map);         // CF+ last/current player map
  int ACC (RW, current_x), ACC (RW, current_y);     // CF+ last/current map position
  char ACC (RW, client)[64];              // CF+ client name/version

  /* If we get an incomplete packet, this is used to hold the data. */
  uint8 inbuf[MAXSOCKBUF];
  player *pl;//TODO should not be here, preferably

  client_socket (int fd, const char *from_ip);
  ~client_socket ();

  int read_packet ();                     // returns length of packet or 0
  void skip_packet (int len);             // we have processed the packet, skip it

  void send (void *buf_, int len);

  void send_packet (const char *buf);
  void send_packet (const char *buf, int len);
  void send_packet (packet &sl);
};

#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\
        ( ((__type)>0) &&\
          ((__sockPtr)->has_readable_type) && \
          ((__sockPtr)->supported_readables & (1<<(__type))) )

/* Bitmask for the faces_sent[] array - what
 * portion of the face have we sent?
 */
#define NS_FACESENT_FACE        0x1
#define NS_FACESENT_SMOOTH      0x2

/* Constants in the form EMI_ is for extended map infos.
 * Even if the client select the additionnal infos it wants
 * on the map, there may exist cases where this whole info
 * is not given in one buch but in separate bunches. This 
 * is done performance reasons (imagine some info related to
 * a visible object and another info related to a 4 square
 * width and height area). At the begin of an extended info packet
 * is a bit field. A bit is activated for each extended info
 * present in the data 
 */

/* Meanings:
 * EMI_NOREDRAW  Take extended infos into account but don't redraw,
 *               some additionnal datas will follow in a new packet
 * EMI_SMOOTH    Datas about smoothing  
 */
#define EMI_NOREDRAW        0x01
#define EMI_SMOOTH          0x02

/* this last one says the bitfield continue un next byte
 * There may be several on contiguous bytes. So there is 7
 * actual bits used per byte, and the number of bytes
 * is not fixed in protocol
 */
#define EMI_HASMOREBITS     0x80

#define FACE_TYPES  1
#define PNG_FACE_INDEX  0

#define VERSION_CS 1023        /* version >= 1023 understand setup cmd */
#define VERSION_SC 1027
#define VERSION_INFO "Crossfire+ Server"

typedef unordered_vector<client_socket *> sockvec;

extern sockvec client_sockets;
extern int nrofpixmaps; //TODO: hrmpf, should go

#endif

Revision:	1.23
Committed:	Thu Dec 14 05:09:32 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.22:	+3 -6 lines
Log Message:	- remove some old socket mode cruft - preliminarily added attachable client_socket interface to perl (untested but also unreachable from perl code atm)
#	Content
1
2	/*
3	CrossFire, A Multiplayer game for the X Window System
4
5	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen
7
8	This program is free software; you can redistribute it and/or modify
9	it under the terms of the GNU General Public License as published by
10	the Free Software Foundation; either version 2 of the License, or
11	(at your option) any later version.
12
13	This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.
17
18	You should have received a copy of the GNU General Public License
19	along with this program; if not, write to the Free Software
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22	The author can be reached via e-mail to crossfire-devel@real-time.com
23	*/
24
25	/*
26	newserver.h defines various structures and values that are use for the
27	new client server communication method. Values defined here are only
28	used on the server side code. For shared client/server values, see
29	newclient.h
30	*/
31
32	#ifndef NEWSERVER_H
33	#define NEWSERVER_H
34
35	/* Reduce this from 50 to 5 - as it is now, there will never be more
36	* than 3 anyways.
37	*/
38
39	#define NUM_LOOK_OBJECTS 50
40
41	struct MapCell
42	{
43	UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient
44	int count; /* This is really darkness in the map1 command */
45	uint16 faces[MAP_LAYERS];
46	uint16 smooth[MAP_LAYERS];
47	unsigned char stat_hp; // health of something in this space, or 0
48	unsigned char flags;
49	};
50
51	/* This basically defines the largest size an
52	* archetype may be - it is used for allocation of
53	* some structures, as well as determining how far
54	* we should look for the heads of big images.
55	*/
56	#define MAX_HEAD_OFFSET 8
57
58	#define MAX_CLIENT_X (MAP_CLIENT_X + MAX_HEAD_OFFSET)
59	#define MAX_CLIENT_Y (MAP_CLIENT_Y + MAX_HEAD_OFFSET)
60
61	struct Map
62	{
63	struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y];
64	};
65
66	/* True max is 16383 given current map compaction method */
67	# define MAXANIMNUM 2000
68
69	struct statsinfo
70	{
71	char range, title;
72	};
73
74	/* This contains basic information on the socket structure. status is its
75	* current state. we set up our on buffers for sending/receiving, so we can
76	* handle some higher level functions. fd is the actual file descriptor we
77	* are using.
78	*/
79
80	enum Sock_Status { Ns_Add, Ns_Dead };
81
82	/* Only one map mode can actually be used, so lets make it a switch
83	* instead of having a bunch of different fields that needed to
84	* get toggled.
85	*/
86	enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 };
87
88	/* The following is the setup for a ring buffer for storing outbut
89	* data that the OS can't handle right away.
90	*/
91
92	struct Buffer
93	{
94	char data[SOCKETBUFSIZE];
95	int start;
96	int len;
97	};
98
99	/* how many times we are allowed to give the wrong password before being kicked. */
100	#define MAX_PASSWORD_FAILURES 5
101
102	ACC_CLASS (client_socket) // should become player when newsocket is a baseclass of player
103	struct client_socket : zero_initialised, attachable_base
104	{
105	enum Sock_Status status;
106	int ACC (RW, fd);
107	unsigned int inbuf_len; // number of bytes valid in inbuf
108	struct Map lastmap;
109	size_t faces_sent_len; /* This is the number of elements allocated in faces_sent[] */
110	uint8 faces_sent; / This is a bitmap on sent face status */
111	uint8 anims_sent[MAXANIMNUM];
112	struct statsinfo stats;
113
114	char ACC (RW, host); / Which host it is connected from (ip address) */
115	uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */
116	Buffer outputbuffer; /* For undeliverable data */
117	uint32 ACC (RO, facecache):1; /* If true, client is caching images */
118	uint32 ACC (RO, sent_scroll):1;
119	uint32 ACC (RO, sound):1; /* does the client want sound */
120	uint32 ACC (RO, exp64):1; /* Client wants 64 bit exp data, as well as skill data */
121	uint32 ACC (RO, newmapcmd):1; /* Send newmap command when entering new map SMACFIGGEN */
122	uint32 ACC (RO, plugincmd):1; /* CF+ extend the protocol through a plug-in */
123	uint32 ACC (RO, mapinfocmd):1; /* CF+ return map info and send map change info */
124	uint32 ACC (RO, extcmd):1; /* CF+ call into extensions/plugins */
125	uint32 ACC (RO, extmap):1; /* CF+ extend map comamnd with extra data */
126	uint32 ACC (RO, buggy_mapscroll):1; /* CF+ client crashes on large mapscrolls */
127	uint32 ACC (RO, darkness):1; /* True if client wants darkness information */
128	uint32 ACC (RO, image2):1; /* Client wants image2/face2 commands */
129	uint32 ACC (RO, update_look):1; /* If true, we need to send the look window */
130	uint32 ACC (RO, can_write):1; /* Can we write to this socket? */
131	uint32 ACC (RO, has_readable_type):1; /* If true client accept additional text information
132	used to arrange text in books, scrolls, or scripted dialogs */
133	uint32 ACC (RO, monitor_spells):1; /* Client wishes to be informed when their spell list changes */
134	uint32 ACC (RO, ext_mapinfos):1; /* If true client accept additionnal info on maps */
135	/* Below are flags for extedend infos to pass to client
136	* with S->C mapextended command */
137	uint32 ACC (RO, EMI_smooth):1; /* Send smooth in extendmapinfos */
138	uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */
139	uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */
140	enum MapMode mapmode; /* Type of map commands the client wants. */
141	uint16 ACC (RW, look_position); /* start of drawing of look window */
142	uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */
143	uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */
144	uint8 ACC (RW, faceset); /* Set the client is using, default 0 */
145
146	maptile *ACC (RW, current_map); // CF+ last/current player map
147	int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position
148	char ACC (RW, client)[64]; // CF+ client name/version
149
150	/* If we get an incomplete packet, this is used to hold the data. */
151	uint8 inbuf[MAXSOCKBUF];
152	player *pl;//TODO should not be here, preferably
153
154	client_socket (int fd, const char *from_ip);
155	~client_socket ();
156
157	int read_packet (); // returns length of packet or 0
158	void skip_packet (int len); // we have processed the packet, skip it
159
160	void send (void *buf_, int len);
161
162	void send_packet (const char *buf);
163	void send_packet (const char *buf, int len);
164	void send_packet (packet &sl);
165	};
166
167	#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\
168	( ((__type)>0) &&\
169	((__sockPtr)->has_readable_type) && \
170	((__sockPtr)->supported_readables & (1<<(__type))) )
171
172	/* Bitmask for the faces_sent[] array - what
173	* portion of the face have we sent?
174	*/
175	#define NS_FACESENT_FACE 0x1
176	#define NS_FACESENT_SMOOTH 0x2
177
178	/* Constants in the form EMI_ is for extended map infos.
179	* Even if the client select the additionnal infos it wants
180	* on the map, there may exist cases where this whole info
181	* is not given in one buch but in separate bunches. This
182	* is done performance reasons (imagine some info related to
183	* a visible object and another info related to a 4 square
184	* width and height area). At the begin of an extended info packet
185	* is a bit field. A bit is activated for each extended info
186	* present in the data
187	*/
188
189	/* Meanings:
190	* EMI_NOREDRAW Take extended infos into account but don't redraw,
191	* some additionnal datas will follow in a new packet
192	* EMI_SMOOTH Datas about smoothing
193	*/
194	#define EMI_NOREDRAW 0x01
195	#define EMI_SMOOTH 0x02
196
197	/* this last one says the bitfield continue un next byte
198	* There may be several on contiguous bytes. So there is 7
199	* actual bits used per byte, and the number of bytes
200	* is not fixed in protocol
201	*/
202	#define EMI_HASMOREBITS 0x80
203
204	#define FACE_TYPES 1
205	#define PNG_FACE_INDEX 0
206
207	#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */
208	#define VERSION_SC 1027
209	#define VERSION_INFO "Crossfire+ Server"
210
211	typedef unordered_vector<client_socket *> sockvec;
212
213	extern sockvec client_sockets;
214	extern int nrofpixmaps; //TODO: hrmpf, should go
215
216	#endif
217