sail/extern.h

   1 /*      $NetBSD: extern.h,v 1.34 2009/03/15 03:33:56 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 NLOG 10
 105 struct logs {
 106         char l_name[20];
 107         int l_uid;
 108         int l_shipnum;
 109         int l_gamenum;
 110         int l_netpoints;
 111 };
 112
 113 struct BP {
 114         struct ship *toship;
 115         short turnsent;
 116         short mensent;
 117 };
 118
 119 struct snag {
 120         short sn_count;
 121         short sn_turn;
 122 };
 123
 124 #define NSCENE  nscene
 125 #define NSHIP   10
 126 #define NBP     3
 127
 128 #define NNATION 8
 129 #define N_A     0
 130 #define N_B     1
 131 #define N_S     2
 132 #define N_F     3
 133 #define N_J     4
 134 #define N_D     5
 135 #define N_K     6
 136 #define N_O     7
 137
 138 struct File {
 139         int index;
 140         char captain[20];               /* 0 */
 141         short points;                   /* 20 */
 142         unsigned char loadL;            /* 22 */
 143         unsigned char loadR;            /* 24 */
 144         unsigned char readyL;           /* 26 */
 145         unsigned char readyR;           /* 28 */
 146         struct BP OBP[NBP];             /* 30 */
 147         struct BP DBP[NBP];             /* 48 */
 148         char struck;                    /* 66 */
 149         struct ship *captured;          /* 68 */
 150         short pcrew;                    /* 70 */
 151         char movebuf[10];               /* 72 */
 152         char drift;                     /* 82 */
 153         short nfoul;
 154         short ngrap;
 155         struct snag foul[NSHIP];        /* 84 */
 156         struct snag grap[NSHIP];        /* 124 */
 157         char RH;                        /* 224 */
 158         char RG;                        /* 226 */
 159         char RR;                        /* 228 */
 160         char FS;                        /* 230 */
 161         char explode;                   /* 232 */
 162         char sink;                      /* 234 */
 163         unsigned char dir;
 164         short col;
 165         short row;
 166         char loadwith;
 167         char stern;
 168 };
 169
 170 struct ship {
 171         const char *shipname;           /* 0 */
 172         struct shipspecs *specs;        /* 2 */
 173         unsigned char nationality;      /* 4 */
 174         short shiprow;                  /* 6 */
 175         short shipcol;                  /* 8 */
 176         char shipdir;                   /* 10 */
 177         struct File *file;              /* 12 */
 178 };
 179
 180 struct scenario {
 181         char winddir;                   /* 0 */
 182         char windspeed;                 /* 2 */
 183         char windchange;                /* 4 */
 184         unsigned char vessels;          /* 12 */
 185         const char *name;               /* 14 */
 186         struct ship ship[NSHIP];        /* 16 */
 187 };
 188 extern struct scenario scene[];
 189 extern int nscene;
 190
 191 struct shipspecs {
 192         char bs;
 193         char fs;
 194         char ta;
 195         short guns;
 196         unsigned char class;
 197         char hull;
 198         unsigned char qual;
 199         char crew1;
 200         char crew2;
 201         char crew3;
 202         char gunL;
 203         char gunR;
 204         char carL;
 205         char carR;
 206         int rig1;
 207         int rig2;
 208         int rig3;
 209         int rig4;
 210         short pts;
 211 };
 212 extern struct shipspecs specs[];
 213
 214 extern struct scenario *cc;             /* the current scenario */
 215 extern struct ship *ls;         /* &cc->ship[cc->vessels] */
 216
 217 #define SHIP(s)         (&cc->ship[s])
 218 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
 219
 220 struct windeffects {
 221         char A, B, C, D;
 222 };
 223 extern const struct windeffects WET[7][6];
 224
 225 struct Tables {
 226         char H, G, C, R;
 227 };
 228 extern const struct Tables RigTable[11][6];
 229 extern const struct Tables HullTable[11][6];
 230
 231 extern const char AMMO[9][4];
 232 extern const char HDT[9][10];
 233 extern const char HDTrake[9][10];
 234 extern const char QUAL[9][5];
 235 extern const char MT[9][3];
 236
 237 extern const char *const countryname[];
 238 extern const char *const classname[];
 239 extern const char *const directionname[];
 240 extern const char *const qualname[];
 241 extern const char loadname[];
 242
 243 extern const char rangeofshot[];
 244
 245 extern const char dr[], dc[];
 246
 247 extern int winddir;
 248 extern int windspeed;
 249 extern int turn;
 250 extern int game;
 251 extern int alive;
 252 extern int people;
 253 extern int hasdriver;
 254
 255 /* assorted.c */
 256 void table(struct ship *, struct ship *, int, int, int, int);
 257 void Cleansnag(struct ship *, struct ship *, int, int);
 258
 259 /* dr_1.c */
 260 void unfoul(void);
 261 void boardcomp(void);
 262 void resolve(void);
 263 void compcombat(void);
 264 int next(void);
 265
 266 /* dr_2.c */
 267 void thinkofgrapples(void);
 268 void checkup(void);
 269 void prizecheck(void);
 270 void closeon(struct ship *, struct ship *, char *, size_t, int, int, bool);
 271
 272 /* dr_3.c */
 273 void moveall(void);
 274 void sendbp(struct ship *, struct ship *, int, int);
 275 int is_toughmelee(struct ship *, struct ship *, int, int);
 276 void reload(void);
 277 void checksails(void);
 278
 279 /* dr_4.c */
 280 void ungrap(struct ship *, struct ship *);
 281 void grap(struct ship *, struct ship *);
 282
 283 /* dr_5.c */
 284 void subtract(struct ship *, struct ship *, int, int [3], int);
 285 int mensent(struct ship *, struct ship *, int[3], struct ship **, int *, int);
 286
 287 /* dr_main.c */
 288 int dr_main(void);
 289
 290 /* game.c */
 291 int maxturns(struct ship *, bool *);
 292 int maxmove(struct ship *, int, int);
 293
 294 /* lo_main.c */
 295 int lo_main(void);
 296
 297 /* misc.c */
 298 int range(struct ship *, struct ship *);
 299 struct ship *closestenemy(struct ship *, int, int);
 300 int gunsbear(struct ship *, struct ship *);
 301 int portside(struct ship *, struct ship *, int);
 302 int colours(struct ship *);
 303 void logger(struct ship *);
 304
 305 /* parties.c */
 306 int meleeing(struct ship *, struct ship *);
 307 int boarding(struct ship *, int);
 308 void unboard(struct ship *, struct ship *, int);
 309
 310 /* pl_1.c */
 311 void leave(int) __attribute__((__noreturn__));
 312 void choke(int) __attribute__((__noreturn__));
 313 void child(int);
 314
 315 /* pl_2.c */
 316 void newturn(int);
 317 void play(void) __attribute__((__noreturn__));
 318
 319 /* pl_3.c */
 320 void acceptcombat(void);
 321 void grapungrap(void);
 322 void unfoulplayer(void);
 323
 324 /* pl_4.c */
 325 void changesail(void);
 326 void acceptsignal(void);
 327 void lookout(void);
 328 const char *saywhat(struct ship *, int);
 329 void eyeball(struct ship *);
 330
 331 /* pl_5.c */
 332 void acceptmove(void);
 333 void acceptboard(void);
 334
 335 /* pl_6.c */
 336 void repair(void);
 337 void loadplayer(void);
 338
 339 /* pl_7.c */
 340 void initscreen(void);
 341 void cleanupscreen(void);
 342 void Signal(const char *, struct ship *, ...)
 343          __attribute__((__format__(__printf__,1,3)));
 344 void Msg(const char *, ...)
 345          __attribute__((__format__(__printf__,1,2)));
 346 void prompt(const char *, struct ship *);
 347 int sgetch(const char *, struct ship *, int);
 348 void sgetstr(const char *, char *, int);
 349 void centerview(void);
 350 void upview(void);
 351 void downview(void);
 352 void leftview(void);
 353 void rightview(void);
 354
 355 /* pl_main.c */
 356 int pl_main(void);
 357
 358 /* sync.c */
 359 void fmtship(char *, size_t, const char *, struct ship *);
 360 void makesignal(struct ship *, const char *, struct ship *, ...)
 361          __attribute__((__format__(__printf__,2,4)));
 362 void makemsg(struct ship *, const char *, ...)
 363          __attribute__((__format__(__printf__,2,3)));
 364 int sync_exists(int);
 365 int sync_open(void);
 366 void sync_close(int);
 367 int Sync(void);
 368
 369 void send_captain(struct ship *ship, const char *astr);
 370 void send_captured(struct ship *ship, long a);
 371 void send_class(struct ship *ship, long a);
 372 void send_crew(struct ship *ship, long a, long b, long c);
 373 void send_dbp(struct ship *ship, long a, long b, long c, long d);
 374 void send_drift(struct ship *ship, long a);
 375 void send_explode(struct ship *ship, long a);
 376 void send_foul(struct ship *ship, long a);
 377 void send_gunl(struct ship *ship, long a, long b);
 378 void send_gunr(struct ship *ship, long a, long b);
 379 void send_hull(struct ship *ship, long a);
 380 void send_move(struct ship *ship, const char *astr);
 381 void send_obp(struct ship *ship, long a, long b, long c, long d);
 382 void send_pcrew(struct ship *ship, long a);
 383 void send_unfoul(struct ship *ship, long a, long b);
 384 void send_points(struct ship *ship, long a);
 385 void send_qual(struct ship *ship, long a);
 386 void send_ungrap(struct ship *ship, long a, long b);
 387 void send_rigg(struct ship *ship, long a, long b, long c, long d);
 388 void send_col(struct ship *ship, long a);
 389 void send_dir(struct ship *ship, long a);
 390 void send_row(struct ship *ship, long a);
 391 void send_signal(struct ship *ship, const char *astr);
 392 void send_sink(struct ship *ship, long a);
 393 void send_struck(struct ship *ship, long a);
 394 void send_ta(struct ship *ship, long a);
 395 void send_alive(void);
 396 void send_turn(long a);
 397 void send_wind(long a, long b);
 398 void send_fs(struct ship *ship, long a);
 399 void send_grap(struct ship *ship, long a);
 400 void send_rig1(struct ship *ship, long a);
 401 void send_rig2(struct ship *ship, long a);
 402 void send_rig3(struct ship *ship, long a);
 403 void send_rig4(struct ship *ship, long a);
 404 void send_begin(struct ship *ship);
 405 void send_end(struct ship *ship);
 406 void send_ddead(void);