extern.h revision 1.31 1 /* $NetBSD: extern.h,v 1.31 2009/03/14 20:04:43 dholland Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)externs.h 8.1 (Berkeley) 5/31/93
32 */
33
34 #include <sys/types.h>
35 #include <stdbool.h>
36
37 #include "machdep.h"
38
39 /* program mode */
40 extern int mode;
41 #define MODE_PLAYER 1
42 #define MODE_DRIVER 2
43 #define MODE_LOGGER 3
44
45 /* command line flags */
46 extern int randomize; /* -x, give first available ship */
47 extern int longfmt; /* -l, print score in long format */
48 extern int nobells; /* -b, don't ring bell before Signal */
49
50 /* other initial modes */
51 extern gid_t gid;
52 extern gid_t egid;
53
54 #define dieroll() ((random()) % 6 + 1)
55 #define sqr(a) ((a) * (a))
56 #define min(a,b) ((a) < (b) ? (a) : (b))
57
58 #define grappled(a) ((a)->file->ngrap)
59 #define fouled(a) ((a)->file->nfoul)
60 #define snagged(a) (grappled(a) + fouled(a))
61
62 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
63 #define fouled2(a, b) ((a)->file->foul[(b)->file->index].sn_count)
64 #define snagged2(a, b) (grappled2(a, b) + fouled2(a, b))
65
66 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 \
67 ? grappled2(a, b) : 0)
68 #define Xfouled2(a, b) ((a)->file->foul[(b)->file->index].sn_turn < turn-1 \
69 ? fouled2(a, b) : 0)
70 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
71
72 #define cleangrapple(a, b, c) Cleansnag(a, b, c, 1)
73 #define cleanfoul(a, b, c) Cleansnag(a, b, c, 2)
74 #define cleansnag(a, b, c) Cleansnag(a, b, c, 3)
75
76 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured ? 10 : 0))
77 #define sternrow(sp) ((sp)->file->row + dr[(sp)->file->dir])
78 #define sterncol(sp) ((sp)->file->col + dc[(sp)->file->dir])
79
80 #define capship(sp) ((sp)->file->captured?(sp)->file->captured:(sp))
81
82 #define readyname(r) ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
83
84 /* loadL and loadR, should match loadname[] */
85 #define L_EMPTY 0 /* should be 0, don't change */
86 #define L_GRAPE 1
87 #define L_CHAIN 2
88 #define L_ROUND 3
89 #define L_DOUBLE 4
90 #define L_EXPLODE 5
91
92 /*
93 * readyL and readyR, these are bits, except R_EMPTY
94 */
95 #define R_EMPTY 0 /* not loaded and not loading */
96 #define R_LOADING 1 /* loading */
97 #define R_DOUBLE 2 /* loading double */
98 #define R_LOADED 4 /* loaded */
99 #define R_INITIAL 8 /* loaded initial */
100
101 #define HULL 0
102 #define RIGGING 1
103
104 #define W_CAPTAIN 1
105 #define W_CAPTURED 2
106 #define W_CLASS 3
107 #define W_CREW 4
108 #define W_DBP 5
109 #define W_DRIFT 6
110 #define W_EXPLODE 7
111 #define W_FILE 8
112 #define W_FOUL 9
113 #define W_GUNL 10
114 #define W_GUNR 11
115 #define W_HULL 12
116 #define W_MOVE 13
117 #define W_OBP 14
118 #define W_PCREW 15
119 #define W_UNFOUL 16
120 #define W_POINTS 17
121 #define W_QUAL 18
122 #define W_UNGRAP 19
123 #define W_RIGG 20
124 #define W_COL 21
125 #define W_DIR 22
126 #define W_ROW 23
127 #define W_SIGNAL 24
128 #define W_SINK 25
129 #define W_STRUCK 26
130 #define W_TA 27
131 #define W_ALIVE 28
132 #define W_TURN 29
133 #define W_WIND 30
134 #define W_FS 31
135 #define W_GRAP 32
136 #define W_RIG1 33
137 #define W_RIG2 34
138 #define W_RIG3 35
139 #define W_RIG4 36
140 #define W_BEGIN 37
141 #define W_END 38
142 #define W_DDEAD 39
143
144 #define NLOG 10
145 struct logs {
146 char l_name[20];
147 int l_uid;
148 int l_shipnum;
149 int l_gamenum;
150 int l_netpoints;
151 };
152
153 struct BP {
154 struct ship *toship;
155 short turnsent;
156 short mensent;
157 };
158
159 struct snag {
160 short sn_count;
161 short sn_turn;
162 };
163
164 #define NSCENE nscene
165 #define NSHIP 10
166 #define NBP 3
167
168 #define NNATION 8
169 #define N_A 0
170 #define N_B 1
171 #define N_S 2
172 #define N_F 3
173 #define N_J 4
174 #define N_D 5
175 #define N_K 6
176 #define N_O 7
177
178 struct File {
179 int index;
180 char captain[20]; /* 0 */
181 short points; /* 20 */
182 unsigned char loadL; /* 22 */
183 unsigned char loadR; /* 24 */
184 unsigned char readyL; /* 26 */
185 unsigned char readyR; /* 28 */
186 struct BP OBP[NBP]; /* 30 */
187 struct BP DBP[NBP]; /* 48 */
188 char struck; /* 66 */
189 struct ship *captured; /* 68 */
190 short pcrew; /* 70 */
191 char movebuf[10]; /* 72 */
192 char drift; /* 82 */
193 short nfoul;
194 short ngrap;
195 struct snag foul[NSHIP]; /* 84 */
196 struct snag grap[NSHIP]; /* 124 */
197 char RH; /* 224 */
198 char RG; /* 226 */
199 char RR; /* 228 */
200 char FS; /* 230 */
201 char explode; /* 232 */
202 char sink; /* 234 */
203 unsigned char dir;
204 short col;
205 short row;
206 char loadwith;
207 char stern;
208 };
209
210 struct ship {
211 const char *shipname; /* 0 */
212 struct shipspecs *specs; /* 2 */
213 unsigned char nationality; /* 4 */
214 short shiprow; /* 6 */
215 short shipcol; /* 8 */
216 char shipdir; /* 10 */
217 struct File *file; /* 12 */
218 };
219
220 struct scenario {
221 char winddir; /* 0 */
222 char windspeed; /* 2 */
223 char windchange; /* 4 */
224 unsigned char vessels; /* 12 */
225 const char *name; /* 14 */
226 struct ship ship[NSHIP]; /* 16 */
227 };
228 extern struct scenario scene[];
229 extern int nscene;
230
231 struct shipspecs {
232 char bs;
233 char fs;
234 char ta;
235 short guns;
236 unsigned char class;
237 char hull;
238 unsigned char qual;
239 char crew1;
240 char crew2;
241 char crew3;
242 char gunL;
243 char gunR;
244 char carL;
245 char carR;
246 int rig1;
247 int rig2;
248 int rig3;
249 int rig4;
250 short pts;
251 };
252 extern struct shipspecs specs[];
253
254 extern struct scenario *cc; /* the current scenario */
255 extern struct ship *ls; /* &cc->ship[cc->vessels] */
256
257 #define SHIP(s) (&cc->ship[s])
258 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
259
260 struct windeffects {
261 char A, B, C, D;
262 };
263 extern const struct windeffects WET[7][6];
264
265 struct Tables {
266 char H, G, C, R;
267 };
268 extern const struct Tables RigTable[11][6];
269 extern const struct Tables HullTable[11][6];
270
271 extern const char AMMO[9][4];
272 extern const char HDT[9][10];
273 extern const char HDTrake[9][10];
274 extern const char QUAL[9][5];
275 extern const char MT[9][3];
276
277 extern const char *const countryname[];
278 extern const char *const classname[];
279 extern const char *const directionname[];
280 extern const char *const qualname[];
281 extern const char loadname[];
282
283 extern const char rangeofshot[];
284
285 extern const char dr[], dc[];
286
287 extern int winddir;
288 extern int windspeed;
289 extern int turn;
290 extern int game;
291 extern int alive;
292 extern int people;
293 extern int hasdriver;
294
295 /* assorted.c */
296 void table(struct ship *, struct ship *, int, int, int, int);
297 void Cleansnag(struct ship *, struct ship *, int, int);
298
299 /* dr_1.c */
300 void unfoul(void);
301 void boardcomp(void);
302 void resolve(void);
303 void compcombat(void);
304 int next(void);
305
306 /* dr_2.c */
307 void thinkofgrapples(void);
308 void checkup(void);
309 void prizecheck(void);
310 void closeon(struct ship *, struct ship *, char *, size_t, int, int, bool);
311
312 /* dr_3.c */
313 void moveall(void);
314 void sendbp(struct ship *, struct ship *, int, int);
315 int is_toughmelee(struct ship *, struct ship *, int, int);
316 void reload(void);
317 void checksails(void);
318
319 /* dr_4.c */
320 void ungrap(struct ship *, struct ship *);
321 void grap(struct ship *, struct ship *);
322
323 /* dr_5.c */
324 void subtract(struct ship *, struct ship *, int, int [3], int);
325 int mensent(struct ship *, struct ship *, int[3], struct ship **, int *, int);
326
327 /* dr_main.c */
328 int dr_main(void);
329
330 /* game.c */
331 int maxturns(struct ship *, bool *);
332 int maxmove(struct ship *, int, int);
333
334 /* lo_main.c */
335 int lo_main(void);
336
337 /* misc.c */
338 int range(struct ship *, struct ship *);
339 struct ship *closestenemy(struct ship *, int, int);
340 int gunsbear(struct ship *, struct ship *);
341 int portside(struct ship *, struct ship *, int);
342 int colours(struct ship *);
343 void logger(struct ship *);
344
345 /* parties.c */
346 int meleeing(struct ship *, struct ship *);
347 int boarding(struct ship *, int);
348 void unboard(struct ship *, struct ship *, int);
349
350 /* pl_1.c */
351 void leave(int) __attribute__((__noreturn__));
352 void choke(int) __attribute__((__noreturn__));
353 void child(int);
354
355 /* pl_2.c */
356 void play(void) __attribute__((__noreturn__));
357
358 /* pl_3.c */
359 void acceptcombat(void);
360 void grapungrap(void);
361 void unfoulplayer(void);
362
363 /* pl_4.c */
364 void changesail(void);
365 void acceptsignal(void);
366 void lookout(void);
367 const char *saywhat(struct ship *, int);
368 void eyeball(struct ship *);
369
370 /* pl_5.c */
371 void acceptmove(void);
372 void acceptboard(void);
373
374 /* pl_6.c */
375 void repair(void);
376 void loadplayer(void);
377
378 /* pl_7.c */
379 void initscreen(void);
380 void cleanupscreen(void);
381 void newturn(int);
382 void Signal(const char *, struct ship *, ...)
383 __attribute__((__format__(__printf__,1,3)));
384 void Msg(const char *, ...)
385 __attribute__((__format__(__printf__,1,2)));
386 void prompt(const char *, struct ship *);
387 int sgetch(const char *, struct ship *, int);
388 void sgetstr(const char *, char *, int);
389 void draw_screen(void);
390 void draw_view(void);
391 void draw_turn(void);
392 void draw_stat(void);
393 void draw_slot(void);
394 void draw_board(void);
395 void centerview(void);
396 void upview(void);
397 void downview(void);
398 void leftview(void);
399 void rightview(void);
400
401 /* pl_main.c */
402 int pl_main(void);
403
404 /* sync.c */
405 void fmtship(char *, size_t, const char *, struct ship *);
406 void makesignal(struct ship *, const char *, struct ship *, ...)
407 __attribute__((__format__(__printf__,2,4)));
408 void makemsg(struct ship *, const char *, ...)
409 __attribute__((__format__(__printf__,2,3)));
410 int sync_exists(int);
411 int sync_open(void);
412 void sync_close(int);
413 void Write(int, struct ship *, long, long, long, long);
414 void Writestr(int, struct ship *, const char *);
415 int Sync(void);
416