sail/extern.h

   1 /*      $NetBSD: extern.h,v 1.10 1999/09/08 21:17:58 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 "machdep.h"
  44
  45         /* program mode */
  46 int mode;
  47 jmp_buf restart;
  48 #define MODE_PLAYER     1
  49 #define MODE_DRIVER     2
  50 #define MODE_LOGGER     3
  51
  52         /* command line flags */
  53 char debug;                             /* -D */
  54 char randomize;                         /* -x, give first available ship */
  55 char longfmt;                           /* -l, print score in long format */
  56 char nobells;                           /* -b, don't ring bell before Signal */
  57
  58         /* other initial modes */
  59 char issetuid;                          /* running setuid */
  60
  61 #define die()           ((rand() >> 3) % 6 + 1)
  62 #define sqr(a)          ((a) * (a))
  63 #define abs(a)          ((a) > 0 ? (a) : -(a))
  64 #define min(a,b)        ((a) < (b) ? (a) : (b))
  65
  66 #define grappled(a)     ((a)->file->ngrap)
  67 #define fouled(a)       ((a)->file->nfoul)
  68 #define snagged(a)      (grappled(a) + fouled(a))
  69
  70 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
  71 #define fouled2(a, b)   ((a)->file->foul[(b)->file->index].sn_count)
  72 #define snagged2(a, b)  (grappled2(a, b) + fouled2(a, b))
  73
  74 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 ? grappled2(a, b) : 0)
  75 #define Xfouled2(a, b)  ((a)->file->foul[(b)->file->index].sn_turn < turn-1 ? fouled2(a, b) : 0)
  76 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
  77
  78 #define cleangrapple(a, b, c)   Cleansnag(a, b, c, 1)
  79 #define cleanfoul(a, b, c)      Cleansnag(a, b, c, 2)
  80 #define cleansnag(a, b, c)      Cleansnag(a, b, c, 3)
  81
  82 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured?10:0))
  83 #define sternrow(sp)    ((sp)->file->row + dr[(sp)->file->dir])
  84 #define sterncol(sp)    ((sp)->file->col + dc[(sp)->file->dir])
  85
  86 #define capship(sp)     ((sp)->file->captured?(sp)->file->captured:(sp))
  87
  88 #define readyname(r)    ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
  89
  90 /* loadL and loadR, should match loadname[] */
  91 #define L_EMPTY         0               /* should be 0, don't change */
  92 #define L_GRAPE         1
  93 #define L_CHAIN         2
  94 #define L_ROUND         3
  95 #define L_DOUBLE        4
  96 #define L_EXPLODE       5
  97
  98 /*
  99  * readyL and readyR, these are bits, except R_EMPTY
 100  */
 101 #define R_EMPTY         0               /* not loaded and not loading */
 102 #define R_LOADING       1               /* loading */
 103 #define R_DOUBLE        2               /* loading double */
 104 #define R_LOADED        4               /* loaded */
 105 #define R_INITIAL       8               /* loaded initial */
 106
 107 #define HULL            0
 108 #define RIGGING         1
 109
 110 #define W_CAPTAIN       1
 111 #define W_CAPTURED      2
 112 #define W_CLASS         3
 113 #define W_CREW          4
 114 #define W_DBP           5
 115 #define W_DRIFT         6
 116 #define W_EXPLODE       7
 117 #define W_FILE          8
 118 #define W_FOUL          9
 119 #define W_GUNL          10
 120 #define W_GUNR          11
 121 #define W_HULL          12
 122 #define W_MOVE          13
 123 #define W_OBP           14
 124 #define W_PCREW         15
 125 #define W_UNFOUL        16
 126 #define W_POINTS        17
 127 #define W_QUAL          18
 128 #define W_UNGRAP        19
 129 #define W_RIGG          20
 130 #define W_COL           21
 131 #define W_DIR           22
 132 #define W_ROW           23
 133 #define W_SIGNAL        24
 134 #define W_SINK          25
 135 #define W_STRUCK        26
 136 #define W_TA            27
 137 #define W_ALIVE         28
 138 #define W_TURN          29
 139 #define W_WIND          30
 140 #define W_FS            31
 141 #define W_GRAP          32
 142 #define W_RIG1          33
 143 #define W_RIG2          34
 144 #define W_RIG3          35
 145 #define W_RIG4          36
 146 #define W_BEGIN         37
 147 #define W_END           38
 148 #define W_DDEAD         39
 149
 150 #define NLOG 10
 151 struct logs {
 152         char l_name[20];
 153         int l_uid;
 154         int l_shipnum;
 155         int l_gamenum;
 156         int l_netpoints;
 157 };
 158
 159 struct BP {
 160         short turnsent;
 161         struct ship *toship;
 162         short mensent;
 163 };
 164
 165 struct snag {
 166         short sn_count;
 167         short sn_turn;
 168 };
 169
 170 #define NSCENE  nscene
 171 #define NSHIP   10
 172 #define NBP     3
 173
 174 #define NNATION 8
 175 #define N_A     0
 176 #define N_B     1
 177 #define N_S     2
 178 #define N_F     3
 179 #define N_J     4
 180 #define N_D     5
 181 #define N_K     6
 182 #define N_O     7
 183
 184 struct File {
 185         int index;
 186         char captain[20];               /* 0 */
 187         short points;                   /* 20 */
 188         unsigned char loadL;            /* 22 */
 189         unsigned char loadR;            /* 24 */
 190         unsigned char readyL;           /* 26 */
 191         unsigned char readyR;           /* 28 */
 192         struct BP OBP[NBP];             /* 30 */
 193         struct BP DBP[NBP];             /* 48 */
 194         char struck;                    /* 66 */
 195         struct ship *captured;          /* 68 */
 196         short pcrew;                    /* 70 */
 197         char movebuf[10];               /* 72 */
 198         char drift;                     /* 82 */
 199         short nfoul;
 200         short ngrap;
 201         struct snag foul[NSHIP];        /* 84 */
 202         struct snag grap[NSHIP];        /* 124 */
 203         char RH;                        /* 224 */
 204         char RG;                        /* 226 */
 205         char RR;                        /* 228 */
 206         char FS;                        /* 230 */
 207         char explode;                   /* 232 */
 208         char sink;                      /* 234 */
 209         unsigned char dir;
 210         short col;
 211         short row;
 212         char loadwith;
 213         char stern;
 214 };
 215
 216 struct ship {
 217         const char *shipname;           /* 0 */
 218         struct shipspecs *specs;        /* 2 */
 219         unsigned char nationality;      /* 4 */
 220         short shiprow;                  /* 6 */
 221         short shipcol;                  /* 8 */
 222         char shipdir;                   /* 10 */
 223         struct File *file;              /* 12 */
 224 };
 225
 226 struct scenario {
 227         char winddir;                   /* 0 */
 228         char windspeed;                 /* 2 */
 229         char windchange;                /* 4 */
 230         unsigned char vessels;          /* 12 */
 231         const char *name;               /* 14 */
 232         struct ship ship[NSHIP];        /* 16 */
 233 };
 234 extern struct scenario scene[];
 235 int nscene;
 236
 237 struct shipspecs {
 238         char bs;
 239         char fs;
 240         char ta;
 241         short guns;
 242         unsigned char class;
 243         char hull;
 244         unsigned char qual;
 245         char crew1;
 246         char crew2;
 247         char crew3;
 248         char gunL;
 249         char gunR;
 250         char carL;
 251         char carR;
 252         int rig1;
 253         int rig2;
 254         int rig3;
 255         int rig4;
 256         short pts;
 257 };
 258 extern struct shipspecs specs[];
 259
 260 struct scenario *cc;            /* the current scenario */
 261 struct ship *ls;                /* &cc->ship[cc->vessels] */
 262
 263 #define SHIP(s)         (&cc->ship[s])
 264 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
 265
 266 struct windeffects {
 267         char A, B, C, D;
 268 };
 269 const struct windeffects WET[7][6];
 270
 271 struct Tables {
 272         char H, G, C, R;
 273 };
 274 const struct Tables RigTable[11][6];
 275 const struct Tables HullTable[11][6];
 276
 277 const char AMMO[9][4];
 278 const char HDT[9][10];
 279 const char HDTrake[9][10];
 280 const char QUAL[9][5];
 281 const char MT[9][3];
 282
 283 extern const char *const countryname[];
 284 extern const char *const classname[];
 285 extern const char *const directionname[];
 286 extern const char *const qualname[];
 287 extern const char loadname[];
 288
 289 extern const char rangeofshot[];
 290
 291 extern const char dr[], dc[];
 292
 293 int winddir;
 294 int windspeed;
 295 int turn;
 296 int game;
 297 int alive;
 298 int people;
 299 char hasdriver;
 300
 301 /* assorted.c */
 302 void table __P((int, int, int, struct ship *, struct ship *, int));
 303 void Cleansnag __P((struct ship *, struct ship *, int, int));
 304
 305 /* dr_1.c */
 306 void unfoul __P((void));
 307 void boardcomp __P((void));
 308 int fightitout __P((struct ship *, struct ship *, int));
 309 void resolve __P((void));
 310 void compcombat __P((void));
 311 int next __P((void));
 312
 313 /* dr_2.c */
 314 void thinkofgrapples __P((void));
 315 void checkup __P((void));
 316 void prizecheck __P((void));
 317 int strend __P((const char *));
 318 void closeon __P((struct ship *, struct ship *, char[], int, int, int));
 319 int score __P((char[], struct ship *, struct ship *, int));
 320 void move_ship __P((const char *, struct ship *, unsigned char *, short *, short *, char *));
 321 void try __P((char[], char [], int, int, int, int, int, struct ship *,
 322     struct ship *, int *, int));
 323 void rmend __P((char *));
 324
 325 /* dr_3.c */
 326 void moveall __P((void));
 327 int stillmoving __P((int));
 328 int isolated __P((struct ship *));
 329 int push __P((struct ship *, struct ship *));
 330 void step __P((int, struct ship *, char *));
 331 void sendbp __P((struct ship *, struct ship *, int, int));
 332 int toughmelee __P((struct ship *, struct ship *, int, int));
 333 void reload __P((void));
 334 void checksails __P((void));
 335
 336 /* dr_4.c */
 337 void ungrap __P((struct ship *, struct ship *));
 338 void grap __P((struct ship *, struct ship *));
 339
 340 /* dr_5.c */
 341 void subtract __P((struct ship *, int, int [3], struct ship *, int));
 342 int mensent __P((struct ship *, struct ship *, int[3], struct ship **, int *,
 343     int));
 344
 345 /* dr_main.c */
 346 int dr_main __P((void));
 347
 348 /* game.c */
 349 int maxturns __P((struct ship *, char *));
 350 int maxmove __P((struct ship *, int, int));
 351
 352 /* lo_main.c */
 353 int lo_main __P((void));
 354
 355 /* misc.c */
 356 int range __P((struct ship *, struct ship *));
 357 struct ship *closestenemy __P((struct ship *, int, int));
 358 int angle __P((int, int));
 359 int gunsbear __P((struct ship *, struct ship *));
 360 int portside __P((struct ship *, struct ship *, int));
 361 int colours __P((struct ship *));
 362 void logger __P((struct ship *));
 363
 364 /* parties.c */
 365 int meleeing __P((struct ship *, struct ship *));
 366 int boarding __P((struct ship *, int));
 367 void unboard __P((struct ship *, struct ship *, int));
 368
 369 /* pl_1.c */
 370 void leave __P((int)) __attribute__((__noreturn__));
 371 void choke __P((int)) __attribute__((__noreturn__));
 372 void child __P((int));
 373
 374 /* pl_2.c */
 375 void play __P((void));
 376
 377 /* pl_3.c */
 378 void acceptcombat __P((void));
 379 void grapungrap __P((void));
 380 void unfoulplayer __P((void));
 381
 382 /* pl_4.c */
 383 void changesail __P((void));
 384 void acceptsignal __P((void));
 385 void lookout __P((void));
 386 const char *saywhat __P((struct ship *, int));
 387 void eyeball __P((struct ship *));
 388
 389 /* pl_5.c */
 390 void acceptmove __P((void));
 391 void acceptboard __P((void));
 392 void parties __P((int[3], struct ship *, int, int));
 393
 394 /* pl_6.c */
 395 void repair __P((void));
 396 int turned __P((void));
 397 void loadplayer __P((void));
 398
 399 /* pl_7.c */
 400 void initscreen __P((void));
 401 void cleanupscreen __P((void));
 402 void newturn __P((int));
 403 void Signal __P((const char *, struct ship *, ...))
 404          __attribute__((__format__(__printf__,1,3)));
 405 void Msg __P((const char *, ...))
 406          __attribute__((__format__(__printf__,1,2)));
 407 void Scroll __P((void));
 408 void prompt __P((const char *, struct ship *));
 409 void endprompt __P((int));
 410 int sgetch __P((const char *, struct ship *, int));
 411 void sgetstr __P((const char *, char *, int));
 412 void draw_screen __P((void));
 413 void draw_view __P((void));
 414 void draw_turn __P((void));
 415 void draw_stat __P((void));
 416 void draw_slot __P((void));
 417 void draw_board __P((void));
 418 void centerview __P((void));
 419 void upview __P((void));
 420 void downview __P((void));
 421 void leftview __P((void));
 422 void rightview __P((void));
 423 void adjustview __P((void));
 424
 425 /* pl_main.c */
 426 int pl_main __P((void));
 427 void initialize __P((void));
 428
 429 /* sync.c */
 430 void fmtship __P((char *, size_t, const char *, struct ship *));
 431 void makesignal __P((struct ship *, const char *, struct ship *, ...))
 432          __attribute__((__format__(__printf__,2,4)));
 433 void makemsg __P((struct ship *, const char *, ...))
 434          __attribute__((__format__(__printf__,2,3)));
 435 int sync_exists __P((int));
 436 int sync_open __P((void));
 437 void sync_close __P((int));
 438 void Write __P((int, struct ship *, long, long, long, long));
 439 void Writestr __P((int, struct ship *, const char *));
 440 int Sync __P((void));
 441 int sync_update __P((int, struct ship *, const char *, long, long, long, long));