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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)externs.h 8.1 (Berkeley) 5/31/93
45 extern jmp_buf restart
;
50 /* command line flags */
51 extern char debug
; /* -D */
52 extern char randomize
; /* -x, give first available ship */
53 extern char longfmt
; /* -l, print score in long format */
54 extern char nobells
; /* -b, don't ring bell before Signal */
56 /* other initial modes */
57 extern char issetuid
; /* running setuid */
59 #define die() (random() % 6 + 1)
60 #define sqr(a) ((a) * (a))
61 #define min(a,b) ((a) < (b) ? (a) : (b))
63 #define grappled(a) ((a)->file->ngrap)
64 #define fouled(a) ((a)->file->nfoul)
65 #define snagged(a) (grappled(a) + fouled(a))
67 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
68 #define fouled2(a, b) ((a)->file->foul[(b)->file->index].sn_count)
69 #define snagged2(a, b) (grappled2(a, b) + fouled2(a, b))
71 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 \
72 ? grappled2(a, b) : 0)
73 #define Xfouled2(a, b) ((a)->file->foul[(b)->file->index].sn_turn < turn-1 \
75 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
77 #define cleangrapple(a, b, c) Cleansnag(a, b, c, 1)
78 #define cleanfoul(a, b, c) Cleansnag(a, b, c, 2)
79 #define cleansnag(a, b, c) Cleansnag(a, b, c, 3)
81 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured ? 10 : 0))
82 #define sternrow(sp) ((sp)->file->row + dr[(sp)->file->dir])
83 #define sterncol(sp) ((sp)->file->col + dc[(sp)->file->dir])
85 #define capship(sp) ((sp)->file->captured?(sp)->file->captured:(sp))
87 #define readyname(r) ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
89 /* loadL and loadR, should match loadname[] */
90 #define L_EMPTY 0 /* should be 0, don't change */
98 * readyL and readyR, these are bits, except R_EMPTY
100 #define R_EMPTY 0 /* not loaded and not loading */
101 #define R_LOADING 1 /* loading */
102 #define R_DOUBLE 2 /* loading double */
103 #define R_LOADED 4 /* loaded */
104 #define R_INITIAL 8 /* loaded initial */
169 #define NSCENE nscene
185 char captain
[20]; /* 0 */
186 short points
; /* 20 */
187 unsigned char loadL
; /* 22 */
188 unsigned char loadR
; /* 24 */
189 char readyL
; /* 26 */
190 char readyR
; /* 28 */
191 struct BP OBP
[NBP
]; /* 30 */
192 struct BP DBP
[NBP
]; /* 48 */
193 char struck
; /* 66 */
194 struct ship
*captured
; /* 68 */
195 short pcrew
; /* 70 */
196 char movebuf
[60]; /* 72 */
197 char drift
; /* 132 */
200 struct snag foul
[NSHIP
]; /* 134 */
201 struct snag grap
[NSHIP
]; /* 144 */
206 char explode
; /* 282 */
216 const char *shipname
; /* 0 */
217 struct shipspecs
*specs
; /* 2 */
218 unsigned char nationality
; /* 4 */
219 short shiprow
; /* 6 */
220 short shipcol
; /* 8 */
221 char shipdir
; /* 10 */
222 struct File
*file
; /* 12 */
226 char winddir
; /* 0 */
227 char windspeed
; /* 2 */
228 char windchange
; /* 4 */
229 unsigned char vessels
; /* 12 */
230 const char *name
; /* 14 */
231 struct ship ship
[NSHIP
]; /* 16 */
233 extern struct scenario scene
[];
257 extern struct shipspecs specs
[];
259 extern struct scenario
*cc
; /* the current scenario */
260 extern struct ship
*ls
; /* &cc->ship[cc->vessels] */
262 #define SHIP(s) (&cc->ship[s])
263 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
268 extern struct windeffects WET
[7][6];
273 extern struct Tables RigTable
[11][6];
274 extern struct Tables HullTable
[11][6];
276 extern char AMMO
[9][4];
277 extern char HDT
[9][10];
278 extern char HDTrake
[9][10];
279 extern char QUAL
[9][5];
280 extern char MT
[9][3];
282 extern const char *countryname
[];
283 extern const char *classname
[];
284 extern const char *directionname
[];
285 extern const char *qualname
[];
286 extern char loadname
[];
288 extern char rangeofshot
[];
290 extern char dr
[], dc
[];
293 extern int windspeed
;
298 extern char hasdriver
;
301 void table(int, int, int, struct ship
*, struct ship
*, int);
302 void Cleansnag(struct ship
*, struct ship
*, char, char);
306 void boardcomp(void);
308 void compcombat(void);
312 void thinkofgrapples(void);
314 void prizecheck(void);
315 void closeon(struct ship
*, struct ship
*, char *, int, int, int);
319 void sendbp(struct ship
*, struct ship
*, int, char);
320 int toughmelee(struct ship
*, struct ship
*, int, int);
322 void checksails(void);
325 void ungrap(struct ship
*, struct ship
*);
326 void grap(struct ship
*, struct ship
*);
329 void subtract(struct ship
*, int, int [3], struct ship
*, int);
330 int mensent(struct ship
*, struct ship
*, int [3], struct ship
**, int *, char);
336 int maxturns(struct ship
*, char *);
337 int maxmove(struct ship
*, int, int);
343 int range(struct ship
*, struct ship
*);
344 struct ship
*closestenemy(struct ship
*, char, char);
345 char gunsbear(struct ship
*, struct ship
*);
346 int portside(struct ship
*, struct ship
*, int);
347 char colours(struct ship
*);
348 void write_log(struct ship
*);
351 bool meleeing(struct ship
*, struct ship
*);
352 bool boarding(struct ship
*, char);
353 void unboard(struct ship
*, struct ship
*, char);
364 void acceptcombat(void);
365 void grapungrap(void);
366 void unfoulplayer(void);
369 void changesail(void);
370 void acceptsignal(void);
372 const char *saywhat(struct ship
*, char);
373 void eyeball(struct ship
*);
376 void acceptmove(void);
377 void acceptboard(void);
381 void loadplayer(void);
384 void initscreen(void);
385 void cleanupscreen(void);
387 void Signal(const char *, struct ship
*, ...);
388 int sgetch(const char *, struct ship
*, char);
389 void sgetstr(const char *, char *, int);
390 void draw_screen(void);
391 void draw_view(void);
392 void draw_turn(void);
393 void draw_stat(void);
394 void draw_slot(void);
395 void draw_board(void);
396 void centerview(void);
400 void rightview(void);
406 void fmtship(char *, size_t, const char *, struct ship
*);
407 void makesignal(struct ship
*, const char *, struct ship
*, ...);
408 bool sync_exists(int);
410 void sync_close(char);
411 void Write(int, struct ship
*, int, int, int, int);
412 void Writestr(int, struct ship
*, const char *);