2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)externs.h 8.1 (Berkeley) 5/31/93
50 /* command line flags */
52 char randomize; /* -x, give first available ship */
53 char longfmt; /* -l, print score in long format */
54 char nobells; /* -b, don't ring bell before Signal */
56 /* other initial modes */
57 char issetuid; /* running setuid */
59 #define die() (random() % 6 + 1)
60 #define sqr(a) ((a) * (a))
61 #define abs(a) ((a) > 0 ? (a) : -(a))
62 #define min(a,b) ((a) < (b) ? (a) : (b))
64 #define grappled(a) ((a)->file->ngrap)
65 #define fouled(a) ((a)->file->nfoul)
66 #define snagged(a) (grappled(a) + fouled(a))
68 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
69 #define fouled2(a, b) ((a)->file->foul[(b)->file->index].sn_count)
70 #define snagged2(a, b) (grappled2(a, b) + fouled2(a, b))
72 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 ? grappled2(a, b) : 0)
73 #define Xfouled2(a, b) ((a)->file->foul[(b)->file->index].sn_turn < turn-1 ? fouled2(a, b) : 0)
74 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
76 #define cleangrapple(a, b, c) Cleansnag(a, b, c, 1)
77 #define cleanfoul(a, b, c) Cleansnag(a, b, c, 2)
78 #define cleansnag(a, b, c) Cleansnag(a, b, c, 3)
80 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured?10:0))
81 #define sternrow(sp) ((sp)->file->row + dr[(sp)->file->dir])
82 #define sterncol(sp) ((sp)->file->col + dc[(sp)->file->dir])
84 #define capship(sp) ((sp)->file->captured?(sp)->file->captured:(sp))
86 #define readyname(r) ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
88 /* loadL and loadR, should match loadname[] */
89 #define L_EMPTY 0 /* should be 0, don't change */
97 * readyL and readyR, these are bits, except R_EMPTY
99 #define R_EMPTY 0 /* not loaded and not loading */
100 #define R_LOADING 1 /* loading */
101 #define R_DOUBLE 2 /* loading double */
102 #define R_LOADED 4 /* loaded */
103 #define R_INITIAL 8 /* loaded initial */
168 #define NSCENE nscene
184 char captain[20]; /* 0 */
185 short points; /* 20 */
188 char readyL; /* 26 */
189 char readyR; /* 28 */
190 struct BP OBP[NBP]; /* 30 */
191 struct BP DBP[NBP]; /* 48 */
192 char struck; /* 66 */
193 struct ship *captured; /* 68 */
194 short pcrew; /* 70 */
195 char movebuf[60]; /* 72 */
196 char drift; /* 132 */
199 struct snag foul[NSHIP]; /* 134 */
200 struct snag grap[NSHIP]; /* 144 */
205 char explode; /* 282 */
215 char *shipname; /* 0 */
216 struct shipspecs *specs; /* 2 */
217 char nationality; /* 4 */
218 short shiprow; /* 6 */
219 short shipcol; /* 8 */
220 char shipdir; /* 10 */
221 struct File *file; /* 12 */
225 char winddir; /* 0 */
226 char windspeed; /* 2 */
227 char windchange; /* 4 */
228 char vessels; /* 12 */
230 struct ship ship[NSHIP]; /* 16 */
232 extern struct scenario scene[];
256 extern struct shipspecs specs[];
258 struct scenario *cc; /* the current scenario */
259 struct ship *ls; /* &cc->ship[cc->vessels] */
261 #define SHIP(s) (&cc->ship[s])
262 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
267 struct windeffects WET[7][6];
272 struct Tables RigTable[11][6];
273 struct Tables HullTable[11][6];
281 extern char *countryname[];
282 extern char *classname[];
283 extern char *directionname[];
284 extern char *qualname[];
285 extern char loadname[];
287 extern char rangeofshot[];
289 extern char dr[], dc[];
303 struct ship *closestenemy();