sail/extern.h

   1 /*      $NetBSD: extern.h,v 1.36 2010/08/06 09:14:40 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 bool randomize;                  /* -x, give first available ship */
  47 extern bool longfmt;                    /* -l, print score in long format */
  48 extern bool nobells;                    /* -b, don't ring bell before Signal */
  49
  50         /* other initial data */
  51 extern gid_t gid;
  52 extern gid_t egid;
  53 #define MAXNAMESIZE     20
  54 extern char myname[MAXNAMESIZE];
  55
  56 #define dieroll()               ((random()) % 6 + 1)
  57 #define sqr(a)          ((a) * (a))
  58 #define min(a,b)        ((a) < (b) ? (a) : (b))
  59
  60 #define grappled(a)     ((a)->file->ngrap)
  61 #define fouled(a)       ((a)->file->nfoul)
  62 #define snagged(a)      (grappled(a) + fouled(a))
  63
  64 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
  65 #define fouled2(a, b)   ((a)->file->foul[(b)->file->index].sn_count)
  66 #define snagged2(a, b)  (grappled2(a, b) + fouled2(a, b))
  67
  68 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 \
  69                           ? grappled2(a, b) : 0)
  70 #define Xfouled2(a, b)  ((a)->file->foul[(b)->file->index].sn_turn < turn-1 \
  71                          ? fouled2(a, b) : 0)
  72 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
  73
  74 #define cleangrapple(a, b, c)   Cleansnag(a, b, c, 1)
  75 #define cleanfoul(a, b, c)      Cleansnag(a, b, c, 2)
  76 #define cleansnag(a, b, c)      Cleansnag(a, b, c, 3)
  77
  78 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured ? 10 : 0))
  79 #define sternrow(sp)    ((sp)->file->row + dr[(sp)->file->dir])
  80 #define sterncol(sp)    ((sp)->file->col + dc[(sp)->file->dir])
  81
  82 #define capship(sp)     ((sp)->file->captured?(sp)->file->captured:(sp))
  83
  84 #define readyname(r)    ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
  85
  86 /* loadL and loadR, should match loadname[] */
  87 #define L_EMPTY         0               /* should be 0, don't change */
  88 #define L_GRAPE         1
  89 #define L_CHAIN         2
  90 #define L_ROUND         3
  91 #define L_DOUBLE        4
  92 #define L_EXPLODE       5
  93
  94 /*
  95  * readyL and readyR, these are bits, except R_EMPTY
  96  */
  97 #define R_EMPTY         0               /* not loaded and not loading */
  98 #define R_LOADING       1               /* loading */
  99 #define R_DOUBLE        2               /* loading double */
 100 #define R_LOADED        4               /* loaded */
 101 #define R_INITIAL       8               /* loaded initial */
 102
 103 #define HULL            0
 104 #define RIGGING         1
 105
 106 #define NLOG 10
 107 struct logs {
 108         char l_name[MAXNAMESIZE];
 109         int l_uid;
 110         int l_shipnum;
 111         int l_gamenum;
 112         int l_netpoints;
 113 };
 114
 115 struct BP {
 116         struct ship *toship;
 117         short turnsent;
 118         short mensent;
 119 };
 120
 121 struct snag {
 122         short sn_count;
 123         short sn_turn;
 124 };
 125
 126 #define NSCENE  /*nscene*/ 32
 127 #define NSHIP   10
 128 #define NBP     3
 129
 130 #define NNATION 8
 131 #define N_A     0
 132 #define N_B     1
 133 #define N_S     2
 134 #define N_F     3
 135 #define N_J     4
 136 #define N_D     5
 137 #define N_K     6
 138 #define N_O     7
 139
 140 struct File {
 141         int index;
 142         char captain[MAXNAMESIZE];      /* 0 */
 143         short points;                   /* 20 */
 144         unsigned char loadL;            /* 22 */
 145         unsigned char loadR;            /* 24 */
 146         unsigned char readyL;           /* 26 */
 147         unsigned char readyR;           /* 28 */
 148         struct BP OBP[NBP];             /* 30 */
 149         struct BP DBP[NBP];             /* 48 */
 150         char struck;                    /* 66 */
 151         struct ship *captured;          /* 68 */
 152         short pcrew;                    /* 70 */
 153         char movebuf[10];               /* 72 */
 154         char drift;                     /* 82 */
 155         short nfoul;
 156         short ngrap;
 157         struct snag foul[NSHIP];        /* 84 */
 158         struct snag grap[NSHIP];        /* 124 */
 159         char RH;                        /* 224 */
 160         char RG;                        /* 226 */
 161         char RR;                        /* 228 */
 162         char FS;                        /* 230 */
 163         char explode;                   /* 232 */
 164         char sink;                      /* 234 */
 165         unsigned char dir;
 166         short col;
 167         short row;
 168         char loadwith;
 169         char stern;
 170 };
 171
 172 struct ship {
 173         const char *shipname;           /* 0 */
 174         struct shipspecs *specs;        /* 2 */
 175         unsigned char nationality;      /* 4 */
 176         short shiprow;                  /* 6 */
 177         short shipcol;                  /* 8 */
 178         char shipdir;                   /* 10 */
 179         struct File *file;              /* 12 */
 180 };
 181
 182 struct scenario {
 183         char winddir;                   /* 0 */
 184         char windspeed;                 /* 2 */
 185         char windchange;                /* 4 */
 186         unsigned char vessels;          /* 12 */
 187         const char *name;               /* 14 */
 188         struct ship ship[NSHIP];        /* 16 */
 189 };
 190 extern struct scenario scene[NSCENE];
 191 extern int nscene;
 192
 193 struct shipspecs {
 194         char bs;
 195         char fs;
 196         char ta;
 197         short guns;
 198         unsigned char class;
 199         char hull;
 200         unsigned char qual;
 201         char crew1;
 202         char crew2;
 203         char crew3;
 204         char gunL;
 205         char gunR;
 206         char carL;
 207         char carR;
 208         int rig1;
 209         int rig2;
 210         int rig3;
 211         int rig4;
 212         short pts;
 213 };
 214
 215 extern struct scenario *cc;             /* the current scenario */
 216 extern struct ship *ls;         /* &cc->ship[cc->vessels] */
 217
 218 #define SHIP(s)         (&cc->ship[s])
 219 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
 220
 221 struct windeffects {
 222         char A, B, C, D;
 223 };
 224 extern const struct windeffects WET[7][6];
 225
 226 struct Tables {
 227         char H, G, C, R;
 228 };
 229 extern const struct Tables RigTable[11][6];
 230 extern const struct Tables HullTable[11][6];
 231
 232 extern const char AMMO[9][4];
 233 extern const char HDT[9][10];
 234 extern const char HDTrake[9][10];
 235 extern const char QUAL[9][5];
 236 extern const char MT[9][3];
 237
 238 extern const char *const countryname[];
 239 extern const char *const shortclassname[];
 240 extern const char *const classname[];
 241 extern const char *const directionname[];
 242 extern const char *const qualname[];
 243 extern const char loadname[];
 244
 245 extern const char rangeofshot[];
 246
 247 extern const char dr[], dc[];
 248
 249 extern int winddir;
 250 extern int windspeed;
 251 extern int turn;
 252 extern int game;
 253 extern int alive;
 254 extern int people;
 255 extern int hasdriver;
 256
 257
 258 /* assorted.c */
 259 void table(struct ship *, struct ship *, int, int, int, int);
 260 void Cleansnag(struct ship *, struct ship *, int, int);
 261
 262 /* dr_1.c */
 263 void unfoul(void);
 264 void boardcomp(void);
 265 void resolve(void);
 266 void compcombat(void);
 267 int next(void);
 268
 269 /* dr_2.c */
 270 void thinkofgrapples(void);
 271 void checkup(void);
 272 void prizecheck(void);
 273 void closeon(struct ship *, struct ship *, char *, size_t, int, int, bool);
 274
 275 /* dr_3.c */
 276 void moveall(void);
 277 void sendbp(struct ship *, struct ship *, int, int);
 278 int is_toughmelee(struct ship *, struct ship *, int, int);
 279 void reload(void);
 280 void checksails(void);
 281
 282 /* dr_4.c */
 283 void ungrap(struct ship *, struct ship *);
 284 void grap(struct ship *, struct ship *);
 285
 286 /* dr_5.c */
 287 void subtract(struct ship *, struct ship *, int, int [3], int);
 288 int mensent(struct ship *, struct ship *, int[3], struct ship **, int *, int);
 289
 290 /* dr_main.c */
 291 int dr_main(void);
 292 void startdriver(void);
 293
 294 /* game.c */
 295 int maxturns(struct ship *, bool *);
 296 int maxmove(struct ship *, int, int);
 297
 298 /* lo_main.c */
 299 void lo_curses(void);
 300 int lo_main(void);
 301
 302 /* misc.c */
 303 int range(struct ship *, struct ship *);
 304 struct ship *closestenemy(struct ship *, int, int);
 305 int gunsbear(struct ship *, struct ship *);
 306 int portside(struct ship *, struct ship *, int);
 307 int colours(struct ship *);
 308 void logger(struct ship *);
 309
 310 /* parties.c */
 311 int meleeing(struct ship *, struct ship *);
 312 int boarding(struct ship *, int);
 313 void unboard(struct ship *, struct ship *, int);
 314
 315 /* pl_1.c */
 316 void leave(int) __attribute__((__noreturn__));
 317 void choke(int) __attribute__((__noreturn__));
 318 void child(int);
 319
 320 /* pl_2.c */
 321 void newturn(int);
 322 void play(void) __attribute__((__noreturn__));
 323
 324 /* pl_3.c */
 325 void acceptcombat(void);
 326 void grapungrap(void);
 327 void unfoulplayer(void);
 328
 329 /* pl_4.c */
 330 void changesail(void);
 331 void acceptsignal(void);
 332 void lookout(void);
 333 const char *saywhat(struct ship *, int);
 334 void eyeball(struct ship *);
 335
 336 /* pl_5.c */
 337 void acceptmove(void);
 338 void acceptboard(void);
 339
 340 /* pl_6.c */
 341 void repair(void);
 342 void loadplayer(void);
 343
 344 /* pl_7.c */
 345 void initscreen(void);
 346 void cleanupscreen(void);
 347 void Signal(const char *, struct ship *, ...)
 348          __attribute__((__format__(__printf__,1,3)));
 349 void Msg(const char *, ...)
 350          __attribute__((__format__(__printf__,1,2)));
 351 int sgetch(const char *, struct ship *, int);
 352 void sgetstr(const char *, char *, int);
 353 void centerview(void);
 354 void upview(void);
 355 void downview(void);
 356 void leftview(void);
 357 void rightview(void);
 358 void startup(void);
 359
 360 /* pl_main.c */
 361 void pl_main_init(void);
 362 void pl_main_uninit(void);
 363 void pl_main(void);
 364
 365 /* sync.c */
 366 void fmtship(char *, size_t, const char *, struct ship *);
 367 void makesignal(struct ship *, const char *, struct ship *, ...)
 368          __attribute__((__format__(__printf__,2,4)));
 369 void makemsg(struct ship *, const char *, ...)
 370          __attribute__((__format__(__printf__,2,3)));
 371 int sync_exists(int);
 372 int sync_open(void);
 373 void sync_close(int);
 374 int Sync(void);
 375
 376 void send_captain(struct ship *ship, const char *astr);
 377 void send_captured(struct ship *ship, long a);
 378 void send_class(struct ship *ship, long a);
 379 void send_crew(struct ship *ship, long a, long b, long c);
 380 void send_dbp(struct ship *ship, long a, long b, long c, long d);
 381 void send_drift(struct ship *ship, long a);
 382 void send_explode(struct ship *ship, long a);
 383 void send_foul(struct ship *ship, long a);
 384 void send_gunl(struct ship *ship, long a, long b);
 385 void send_gunr(struct ship *ship, long a, long b);
 386 void send_hull(struct ship *ship, long a);
 387 void send_move(struct ship *ship, const char *astr);
 388 void send_obp(struct ship *ship, long a, long b, long c, long d);
 389 void send_pcrew(struct ship *ship, long a);
 390 void send_unfoul(struct ship *ship, long a, long b);
 391 void send_points(struct ship *ship, long a);
 392 void send_qual(struct ship *ship, long a);
 393 void send_ungrap(struct ship *ship, long a, long b);
 394 void send_rigg(struct ship *ship, long a, long b, long c, long d);
 395 void send_col(struct ship *ship, long a);
 396 void send_dir(struct ship *ship, long a);
 397 void send_row(struct ship *ship, long a);
 398 void send_signal(struct ship *ship, const char *astr);
 399 void send_sink(struct ship *ship, long a);
 400 void send_struck(struct ship *ship, long a);
 401 void send_ta(struct ship *ship, long a);
 402 void send_alive(void);
 403 void send_turn(long a);
 404 void send_wind(long a, long b);
 405 void send_fs(struct ship *ship, long a);
 406 void send_grap(struct ship *ship, long a);
 407 void send_rig1(struct ship *ship, long a);
 408 void send_rig2(struct ship *ship, long a);
 409 void send_rig3(struct ship *ship, long a);
 410 void send_rig4(struct ship *ship, long a);
 411 void send_begin(struct ship *ship);
 412 void send_end(struct ship *ship);
 413 void send_ddead(void);