2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * file.h: Describes Empire files and their contents
30 * Known contributors to this file:
40 char *name; /* Empire name (e.g., "treaty") */
41 char *file; /* file name (relative to data directory) */
42 int flags; /* misc stuff */
43 int mode; /* O_flags */
44 int size; /* size of object */
45 void (*init) (int, char *); /* call this when object is created */
46 int (*postread) (int, char *); /* specific massage routines for items */
47 int (*prewrite) (int, char *);
48 int fd; /* file descriptor */
49 int baseid; /* starting item in cache */
50 int cids; /* # ids in cache */
51 int csize; /* size of cache in bytes */
52 char *cache; /* pointer to cache */
53 int fids; /* # of ids in file */
54 struct castr *cadef; /* ca defs selection list */
58 * struct empfile flags
60 * EFF_XY / EFF_OWNER / EFF_GROUP assert that coordinates / owner /
61 * group of such a file's record can be safely obtained by
62 * dereferencing its memory address cast to struct genitem *.
64 #define EFF_XY bit(0) /* has location */
65 #define EFF_MEM bit(1) /* stored entirely in-memory */
66 #define EFF_OWNER bit(2) /* has concept of owner */
67 #define EFF_GROUP bit(3) /* has concept of group */
71 * These are really table IDs. Some tables are backed by files, some
72 * are compiled into the server.
73 * Historically, only table IDs 0..EF_MAX-1 existed. All the
74 * functions operating on table IDs still reject the new indexes >=
75 * EF_MAX. This needs to be rectified, carefully checking existing
76 * code, which could rely on unspoken assumptions about these tables.
80 /* Dynamic game data tables: 0..EF_MAX-1 */
97 /* Static game data (configuation): EF_MAX.. */
98 #define EF_SECTOR_CHR 15
99 #define EF_SHIP_CHR 16
100 #define EF_PLANE_CHR 17
101 #define EF_LAND_CHR 18
102 #define EF_NUKE_CHR 19
103 #if 0 /* doesn't exist yet */
106 #define EF_TREATY_CHR 20
108 #define EF_INFRASTRUCTURE 22
109 #define EF_PRODUCT 23
112 #define EF_NMAP 222 /* Kinda bogus, but used to describe a newdesmap
113 instead of bmap or map. */
117 void (*init) (int, char *);
118 int (*postread) (int, char *);
119 int (*prewrite) (int, char *);
122 extern struct castr *ef_cadef(int);
123 extern int ef_read(int, int, void *);
124 extern char *ef_ptr(int, int);
125 extern char *ef_nameof(int);
126 extern time_t ef_mtime(int);
127 extern int ef_open(int, int, int);
128 extern int ef_check(int);
129 extern int ef_close(int);
130 extern int ef_flush(int);
131 extern int ef_write(int, int, void *);
132 extern int ef_extend(int, int);
133 extern int ef_ensure_space(int, int, int);
134 extern void ef_zapcache(int);
135 extern int ef_nelem(int);
136 extern int ef_flags(int);
137 extern int ef_byname(char *);
139 extern struct empfile empfile[];
141 #endif /* _FILE_H_ */