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_Avail, Ns_Add, Ns_Dead, Ns_Old };

/* Reserver 0 for neither of these being set */
enum Old_Mode { Old_Listen = 1, Old_Player = 2 };

/* 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 NewSocket : zero_initialised
{
  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];

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

  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

struct Socket_Info
{
  struct timeval timeout;       /* Timeout for select */
  int max_filedescriptor;       /* max filedescriptor on the system */
  int nconns;                   /* Number of connections */
  int allocated_sockets;        /* number of allocated in init_sockets */
};

extern Socket_Info socket_info;

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

#endif

Revision:	1.19
Committed:	Thu Dec 14 01:21:58 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.18:	+1 -1 lines
Log Message:	moar rewrite
#	User	Rev	Content
1	root	1.1
2			/*
3	root	1.11	CrossFire, A Multiplayer game for the X Window System
4	root	1.1
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	root	1.11	struct MapCell
42			{
43	root	1.16	UUID player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient
44	root	1.13	int count; /* This is really darkness in the map1 command */
45	root	1.16	uint16 faces[MAP_LAYERS];
46	root	1.1	uint16 smooth[MAP_LAYERS];
47	root	1.11	unsigned char stat_hp; // health of something in this space, or 0
48	root	1.13	unsigned char flags;
49	root	1.1	};
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	root	1.13	#define MAX_CLIENT_X (MAP_CLIENT_X + MAX_HEAD_OFFSET)
59	root	1.1	#define MAX_CLIENT_Y (MAP_CLIENT_Y + MAX_HEAD_OFFSET)
60
61	root	1.11	struct Map
62			{
63	root	1.1	struct MapCell cells[MAX_CLIENT_X][MAX_CLIENT_Y];
64			};
65
66			/* True max is 16383 given current map compaction method */
67	root	1.11	# define MAXANIMNUM 2000
68	root	1.1
69	root	1.11	struct statsinfo
70			{
71			char range, title;
72	root	1.1	};
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	root	1.11	enum Sock_Status { Ns_Avail, Ns_Add, Ns_Dead, Ns_Old };
81	root	1.1
82			/* Reserver 0 for neither of these being set */
83	root	1.11	enum Old_Mode { Old_Listen = 1, Old_Player = 2 };
84	root	1.1
85			/* Only one map mode can actually be used, so lets make it a switch
86			* instead of having a bunch of different fields that needed to
87			* get toggled.
88			*/
89	root	1.11	enum MapMode { Map0Cmd = 0, Map1Cmd = 1, Map1aCmd = 2 };
90	root	1.1
91			/* The following is the setup for a ring buffer for storing outbut
92			* data that the OS can't handle right away.
93			*/
94
95	root	1.11	struct Buffer
96			{
97			char data[SOCKETBUFSIZE];
98			int start;
99			int len;
100			};
101	root	1.1
102			/* how many times we are allowed to give the wrong password before being kicked. */
103	root	1.11	# define MAX_PASSWORD_FAILURES 5
104	root	1.1
105	root	1.17	ACC_CLASS (client_socket) // should become player when newsocket is a baseclass of player
106			struct NewSocket : zero_initialised
107	root	1.11	{
108			enum Sock_Status status;
109	root	1.14	int ACC (RW, fd);
110	root	1.17	unsigned int inbuf_len; // number of bytes valid in inbuf
111	root	1.11	struct Map lastmap;
112			size_t faces_sent_len; /* This is the number of elements allocated in faces_sent[] */
113			uint8 faces_sent; / This is a bitmap on sent face status */
114			uint8 anims_sent[MAXANIMNUM];
115			struct statsinfo stats;
116	root	1.17
117	root	1.14	char ACC (RW, host); / Which host it is connected from (ip address) */
118			uint8 ACC (RW, password_fails); /* how many times the player has failed to give the right password */
119	root	1.11	Buffer outputbuffer; /* For undeliverable data */
120	root	1.14	uint32 ACC (RO, facecache):1; /* If true, client is caching images */
121			uint32 ACC (RO, sent_scroll):1;
122			uint32 ACC (RO, sound):1; /* does the client want sound */
123			uint32 ACC (RO, exp64):1; /* Client wants 64 bit exp data, as well as skill data */
124			uint32 ACC (RO, newmapcmd):1; /* Send newmap command when entering new map SMACFIGGEN */
125			uint32 ACC (RO, plugincmd):1; /* CF+ extend the protocol through a plug-in */
126			uint32 ACC (RO, mapinfocmd):1; /* CF+ return map info and send map change info */
127			uint32 ACC (RO, extcmd):1; /* CF+ call into extensions/plugins */
128			uint32 ACC (RO, extmap):1; /* CF+ extend map comamnd with extra data */
129			uint32 ACC (RO, buggy_mapscroll):1; /* CF+ client crashes on large mapscrolls */
130			uint32 ACC (RO, darkness):1; /* True if client wants darkness information */
131			uint32 ACC (RO, image2):1; /* Client wants image2/face2 commands */
132			uint32 ACC (RO, update_look):1; /* If true, we need to send the look window */
133			uint32 ACC (RO, can_write):1; /* Can we write to this socket? */
134			uint32 ACC (RO, has_readable_type):1; /* If true client accept additional text information
135	root	1.11	used to arrange text in books, scrolls, or scripted dialogs */
136	root	1.14	uint32 ACC (RO, monitor_spells):1; /* Client wishes to be informed when their spell list changes */
137			uint32 ACC (RO, ext_mapinfos):1; /* If true client accept additionnal info on maps */
138	root	1.11	/* Below are flags for extedend infos to pass to client
139			* with S->C mapextended command */
140	root	1.14	uint32 ACC (RO, EMI_smooth):1; /* Send smooth in extendmapinfos */
141			uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */
142			uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */
143			enum MapMode mapmode; /* Type of map commands the client wants. */
144			uint16 ACC (RW, look_position); /* start of drawing of look window */
145			uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */
146			uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */
147			uint8 ACC (RW, faceset); /* Set the client is using, default 0 */
148
149	root	1.16	maptile *ACC (RW, current_map); // CF+ last/current player map
150	root	1.14	int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position
151			char ACC (RW, client)[64]; // CF+ client name/version
152	root	1.17
153			/* If we get an incomplete packet, this is used to hold the data. */
154			uint8 inbuf[MAXSOCKBUF];
155
156			int read_packet (); // returns length of packet or 0
157			void skip_packet (int len); // we have processed the packet, skip it
158	root	1.18
159			void send_packet (const char *buf);
160			void send_packet (const char *buf, int len);
161	root	1.19	void send_packet (packet &sl);
162	root	1.11	};
163	root	1.1
164			#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\
165	root	1.10	( ((__type)>0) &&\
166			((__sockPtr)->has_readable_type) && \
167			((__sockPtr)->supported_readables & (1<<(__type))) )
168	root	1.1
169			/* Bitmask for the faces_sent[] array - what
170			* portion of the face have we sent?
171			*/
172			#define NS_FACESENT_FACE 0x1
173			#define NS_FACESENT_SMOOTH 0x2
174
175			/* Constants in the form EMI_ is for extended map infos.
176			* Even if the client select the additionnal infos it wants
177			* on the map, there may exist cases where this whole info
178			* is not given in one buch but in separate bunches. This
179			* is done performance reasons (imagine some info related to
180			* a visible object and another info related to a 4 square
181			* width and height area). At the begin of an extended info packet
182			* is a bit field. A bit is activated for each extended info
183			* present in the data
184			*/
185	root	1.11
186	root	1.1	/* Meanings:
187			* EMI_NOREDRAW Take extended infos into account but don't redraw,
188			* some additionnal datas will follow in a new packet
189			* EMI_SMOOTH Datas about smoothing
190	root	1.11	*/
191			#define EMI_NOREDRAW 0x01
192	root	1.1	#define EMI_SMOOTH 0x02
193
194			/* this last one says the bitfield continue un next byte
195			* There may be several on contiguous bytes. So there is 7
196			* actual bits used per byte, and the number of bytes
197			* is not fixed in protocol
198			*/
199			#define EMI_HASMOREBITS 0x80
200
201			#define FACE_TYPES 1
202			#define PNG_FACE_INDEX 0
203
204	root	1.11	struct Socket_Info
205			{
206			struct timeval timeout; /* Timeout for select */
207			int max_filedescriptor; /* max filedescriptor on the system */
208			int nconns; /* Number of connections */
209			int allocated_sockets; /* number of allocated in init_sockets */
210			};
211	root	1.1
212			extern Socket_Info socket_info;
213
214	root	1.11	#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */
215	root	1.1	#define VERSION_SC 1027
216	root	1.4	#define VERSION_INFO "Crossfire+ Server"
217	root	1.1
218			#endif
219	root	1.11