sail/extern.h

   1 /*      $NetBSD: extern.h,v 1.14 2000/02/09 22:27:55 jsm 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)externs.h   8.1 (Berkeley) 5/31/93
  36  */
  37
  38 #include <stdio.h>
  39 #include <signal.h>
  40 #include <string.h>
  41 #include <ctype.h>
  42 #include <setjmp.h>
  43 #include <sys/types.h>
  44 #include "machdep.h"
  45
  46         /* program mode */
  47 extern int mode;
  48 extern jmp_buf restart;
  49 #define MODE_PLAYER     1
  50 #define MODE_DRIVER     2
  51 #define MODE_LOGGER     3
  52
  53         /* command line flags */
  54 extern char debug;                      /* -D */
  55 extern char randomize;                  /* -x, give first available ship */
  56 extern char longfmt;                    /* -l, print score in long format */
  57 extern char nobells;                    /* -b, don't ring bell before Signal */
  58
  59         /* other initial modes */
  60 extern gid_t gid;
  61 extern gid_t egid;
  62
  63 #define die()           ((rand() >> 3) % 6 + 1)
  64 #define sqr(a)          ((a) * (a))
  65 #define abs(a)          ((a) > 0 ? (a) : -(a))
  66 #define min(a,b)        ((a) < (b) ? (a) : (b))
  67
  68 #define grappled(a)     ((a)->file->ngrap)
  69 #define fouled(a)       ((a)->file->nfoul)
  70 #define snagged(a)      (grappled(a) + fouled(a))
  71
  72 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
  73 #define fouled2(a, b)   ((a)->file->foul[(b)->file->index].sn_count)
  74 #define snagged2(a, b)  (grappled2(a, b) + fouled2(a, b))
  75
  76 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 ? grappled2(a, b) : 0)
  77 #define Xfouled2(a, b)  ((a)->file->foul[(b)->file->index].sn_turn < turn-1 ? fouled2(a, b) : 0)
  78 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
  79
  80 #define cleangrapple(a, b, c)   Cleansnag(a, b, c, 1)
  81 #define cleanfoul(a, b, c)      Cleansnag(a, b, c, 2)
  82 #define cleansnag(a, b, c)      Cleansnag(a, b, c, 3)
  83
  84 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured?10:0))
  85 #define sternrow(sp)    ((sp)->file->row + dr[(sp)->file->dir])
  86 #define sterncol(sp)    ((sp)->file->col + dc[(sp)->file->dir])
  87
  88 #define capship(sp)     ((sp)->file->captured?(sp)->file->captured:(sp))
  89
  90 #define readyname(r)    ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
  91
  92 /* loadL and loadR, should match loadname[] */
  93 #define L_EMPTY         0               /* should be 0, don't change */
  94 #define L_GRAPE         1
  95 #define L_CHAIN         2
  96 #define L_ROUND         3
  97 #define L_DOUBLE        4
  98 #define L_EXPLODE       5
  99
 100 /*
 101  * readyL and readyR, these are bits, except R_EMPTY
 102  */
 103 #define R_EMPTY         0               /* not loaded and not loading */
 104 #define R_LOADING       1               /* loading */
 105 #define R_DOUBLE        2               /* loading double */
 106 #define R_LOADED        4               /* loaded */
 107 #define R_INITIAL       8               /* loaded initial */
 108
 109 #define HULL            0
 110 #define RIGGING         1
 111
 112 #define W_CAPTAIN       1
 113 #define W_CAPTURED      2
 114 #define W_CLASS         3
 115 #define W_CREW          4
 116 #define W_DBP           5
 117 #define W_DRIFT         6
 118 #define W_EXPLODE       7
 119 #define W_FILE          8
 120 #define W_FOUL          9
 121 #define W_GUNL          10
 122 #define W_GUNR          11
 123 #define W_HULL          12
 124 #define W_MOVE          13
 125 #define W_OBP           14
 126 #define W_PCREW         15
 127 #define W_UNFOUL        16
 128 #define W_POINTS        17
 129 #define W_QUAL          18
 130 #define W_UNGRAP        19
 131 #define W_RIGG          20
 132 #define W_COL           21
 133 #define W_DIR           22
 134 #define W_ROW           23
 135 #define W_SIGNAL        24
 136 #define W_SINK          25
 137 #define W_STRUCK        26
 138 #define W_TA            27
 139 #define W_ALIVE         28
 140 #define W_TURN          29
 141 #define W_WIND          30
 142 #define W_FS            31
 143 #define W_GRAP          32
 144 #define W_RIG1          33
 145 #define W_RIG2          34
 146 #define W_RIG3          35
 147 #define W_RIG4          36
 148 #define W_BEGIN         37
 149 #define W_END           38
 150 #define W_DDEAD         39
 151
 152 #define NLOG 10
 153 struct logs {
 154         char l_name[20];
 155         int l_uid;
 156         int l_shipnum;
 157         int l_gamenum;
 158         int l_netpoints;
 159 };
 160
 161 struct BP {
 162         short turnsent;
 163         struct ship *toship;
 164         short mensent;
 165 };
 166
 167 struct snag {
 168         short sn_count;
 169         short sn_turn;
 170 };
 171
 172 #define NSCENE  nscene
 173 #define NSHIP   10
 174 #define NBP     3
 175
 176 #define NNATION 8
 177 #define N_A     0
 178 #define N_B     1
 179 #define N_S     2
 180 #define N_F     3
 181 #define N_J     4
 182 #define N_D     5
 183 #define N_K     6
 184 #define N_O     7
 185
 186 struct File {
 187         int index;
 188         char captain[20];               /* 0 */
 189         short points;                   /* 20 */
 190         unsigned char loadL;            /* 22 */
 191         unsigned char loadR;            /* 24 */
 192         unsigned char readyL;           /* 26 */
 193         unsigned char readyR;           /* 28 */
 194         struct BP OBP[NBP];             /* 30 */
 195         struct BP DBP[NBP];             /* 48 */
 196         char struck;                    /* 66 */
 197         struct ship *captured;          /* 68 */
 198         short pcrew;                    /* 70 */
 199         char movebuf[10];               /* 72 */
 200         char drift;                     /* 82 */
 201         short nfoul;
 202         short ngrap;
 203         struct snag foul[NSHIP];        /* 84 */
 204         struct snag grap[NSHIP];        /* 124 */
 205         char RH;                        /* 224 */
 206         char RG;                        /* 226 */
 207         char RR;                        /* 228 */
 208         char FS;                        /* 230 */
 209         char explode;                   /* 232 */
 210         char sink;                      /* 234 */
 211         unsigned char dir;
 212         short col;
 213         short row;
 214         char loadwith;
 215         char stern;
 216 };
 217
 218 struct ship {
 219         const char *shipname;           /* 0 */
 220         struct shipspecs *specs;        /* 2 */
 221         unsigned char nationality;      /* 4 */
 222         short shiprow;                  /* 6 */
 223         short shipcol;                  /* 8 */
 224         char shipdir;                   /* 10 */
 225         struct File *file;              /* 12 */
 226 };
 227
 228 struct scenario {
 229         char winddir;                   /* 0 */
 230         char windspeed;                 /* 2 */
 231         char windchange;                /* 4 */
 232         unsigned char vessels;          /* 12 */
 233         const char *name;               /* 14 */
 234         struct ship ship[NSHIP];        /* 16 */
 235 };
 236 extern struct scenario scene[];
 237 extern int nscene;
 238
 239 struct shipspecs {
 240         char bs;
 241         char fs;
 242         char ta;
 243         short guns;
 244         unsigned char class;
 245         char hull;
 246         unsigned char qual;
 247         char crew1;
 248         char crew2;
 249         char crew3;
 250         char gunL;
 251         char gunR;
 252         char carL;
 253         char carR;
 254         int rig1;
 255         int rig2;
 256         int rig3;
 257         int rig4;
 258         short pts;
 259 };
 260 extern struct shipspecs specs[];
 261
 262 extern struct scenario *cc;             /* the current scenario */
 263 extern struct ship *ls;         /* &cc->ship[cc->vessels] */
 264
 265 #define SHIP(s)         (&cc->ship[s])
 266 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
 267
 268 struct windeffects {
 269         char A, B, C, D;
 270 };
 271 extern const struct windeffects WET[7][6];
 272
 273 struct Tables {
 274         char H, G, C, R;
 275 };
 276 extern const struct Tables RigTable[11][6];
 277 extern const struct Tables HullTable[11][6];
 278
 279 extern const char AMMO[9][4];
 280 extern const char HDT[9][10];
 281 extern const char HDTrake[9][10];
 282 extern const char QUAL[9][5];
 283 extern const char MT[9][3];
 284
 285 extern const char *const countryname[];
 286 extern const char *const classname[];
 287 extern const char *const directionname[];
 288 extern const char *const qualname[];
 289 extern const char loadname[];
 290
 291 extern const char rangeofshot[];
 292
 293 extern const char dr[], dc[];
 294
 295 extern int winddir;
 296 extern int windspeed;
 297 extern int turn;
 298 extern int game;
 299 extern int alive;
 300 extern int people;
 301 extern char hasdriver;
 302
 303 /* assorted.c */
 304 void table __P((int, int, int, struct ship *, struct ship *, int));
 305 void Cleansnag __P((struct ship *, struct ship *, int, int));
 306
 307 /* dr_1.c */
 308 void unfoul __P((void));
 309 void boardcomp __P((void));
 310 int fightitout __P((struct ship *, struct ship *, int));
 311 void resolve __P((void));
 312 void compcombat __P((void));
 313 int next __P((void));
 314
 315 /* dr_2.c */
 316 void thinkofgrapples __P((void));
 317 void checkup __P((void));
 318 void prizecheck __P((void));
 319 int str_end __P((const char *));
 320 void closeon __P((struct ship *, struct ship *, char[], int, int, int));
 321 int score __P((char[], struct ship *, struct ship *, int));
 322 void move_ship __P((const char *, struct ship *, unsigned char *, short *, short *, char *));
 323 void try __P((char[], char [], int, int, int, int, int, struct ship *,
 324     struct ship *, int *, int));
 325 void rmend __P((char *));
 326
 327 /* dr_3.c */
 328 void moveall __P((void));
 329 int stillmoving __P((int));
 330 int is_isolated __P((struct ship *));
 331 int push __P((struct ship *, struct ship *));
 332 void step __P((int, struct ship *, char *));
 333 void sendbp __P((struct ship *, struct ship *, int, int));
 334 int is_toughmelee __P((struct ship *, struct ship *, int, int));
 335 void reload __P((void));
 336 void checksails __P((void));
 337
 338 /* dr_4.c */
 339 void ungrap __P((struct ship *, struct ship *));
 340 void grap __P((struct ship *, struct ship *));
 341
 342 /* dr_5.c */
 343 void subtract __P((struct ship *, int, int [3], struct ship *, int));
 344 int mensent __P((struct ship *, struct ship *, int[3], struct ship **, int *,
 345     int));
 346
 347 /* dr_main.c */
 348 int dr_main __P((void));
 349
 350 /* game.c */
 351 int maxturns __P((struct ship *, char *));
 352 int maxmove __P((struct ship *, int, int));
 353
 354 /* lo_main.c */
 355 int lo_main __P((void));
 356
 357 /* misc.c */
 358 int range __P((struct ship *, struct ship *));
 359 struct ship *closestenemy __P((struct ship *, int, int));
 360 int angle __P((int, int));
 361 int gunsbear __P((struct ship *, struct ship *));
 362 int portside __P((struct ship *, struct ship *, int));
 363 int colours __P((struct ship *));
 364 void logger __P((struct ship *));
 365
 366 /* parties.c */
 367 int meleeing __P((struct ship *, struct ship *));
 368 int boarding __P((struct ship *, int));
 369 void unboard __P((struct ship *, struct ship *, int));
 370
 371 /* pl_1.c */
 372 void leave __P((int)) __attribute__((__noreturn__));
 373 void choke __P((int)) __attribute__((__noreturn__));
 374 void child __P((int));
 375
 376 /* pl_2.c */
 377 void play __P((void)) __attribute__((__noreturn__));
 378
 379 /* pl_3.c */
 380 void acceptcombat __P((void));
 381 void grapungrap __P((void));
 382 void unfoulplayer __P((void));
 383
 384 /* pl_4.c */
 385 void changesail __P((void));
 386 void acceptsignal __P((void));
 387 void lookout __P((void));
 388 const char *saywhat __P((struct ship *, int));
 389 void eyeball __P((struct ship *));
 390
 391 /* pl_5.c */
 392 void acceptmove __P((void));
 393 void acceptboard __P((void));
 394 void parties __P((int[3], struct ship *, int, int));
 395
 396 /* pl_6.c */
 397 void repair __P((void));
 398 int turned __P((void));
 399 void loadplayer __P((void));
 400
 401 /* pl_7.c */
 402 void initscreen __P((void));
 403 void cleanupscreen __P((void));
 404 void newturn __P((int));
 405 void Signal __P((const char *, struct ship *, ...))
 406          __attribute__((__format__(__printf__,1,3)));
 407 void Msg __P((const char *, ...))
 408          __attribute__((__format__(__printf__,1,2)));
 409 void Scroll __P((void));
 410 void prompt __P((const char *, struct ship *));
 411 void endprompt __P((int));
 412 int sgetch __P((const char *, struct ship *, int));
 413 void sgetstr __P((const char *, char *, int));
 414 void draw_screen __P((void));
 415 void draw_view __P((void));
 416 void draw_turn __P((void));
 417 void draw_stat __P((void));
 418 void draw_slot __P((void));
 419 void draw_board __P((void));
 420 void centerview __P((void));
 421 void upview __P((void));
 422 void downview __P((void));
 423 void leftview __P((void));
 424 void rightview __P((void));
 425 void adjustview __P((void));
 426
 427 /* pl_main.c */
 428 int pl_main __P((void));
 429 void initialize __P((void));
 430
 431 /* sync.c */
 432 void fmtship __P((char *, size_t, const char *, struct ship *));
 433 void makesignal __P((struct ship *, const char *, struct ship *, ...))
 434          __attribute__((__format__(__printf__,2,4)));
 435 void makemsg __P((struct ship *, const char *, ...))
 436          __attribute__((__format__(__printf__,2,3)));
 437 int sync_exists __P((int));
 438 int sync_open __P((void));
 439 void sync_close __P((int));
 440 void Write __P((int, struct ship *, long, long, long, long));
 441 void Writestr __P((int, struct ship *, const char *));
 442 int Sync __P((void));
 443 int sync_update __P((int, struct ship *, const char *, long, long, long, long));