games/sail/externs.h

   1 /*-
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)externs.h   8.1 (Berkeley) 5/31/93
  30  */
  31
  32 #include <stdarg.h>
  33 #include <stdbool.h>
  34 #include <string.h>
  35 #include <stdio.h>
  36 #include <signal.h>
  37 #include <ctype.h>
  38 #include <setjmp.h>
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include "machdep.h"
  42
  43         /* program mode */
  44 extern int mode;
  45 extern jmp_buf restart;
  46 #define MODE_PLAYER     1
  47 #define MODE_DRIVER     2
  48 #define MODE_LOGGER     3
  49
  50         /* command line flags */
  51 extern char debug;                              /* -D */
  52 extern char randomize;                          /* -x, give first available ship */
  53 extern char longfmt;                            /* -l, print score in long format */
  54 extern char nobells;                            /* -b, don't ring bell before Signal */
  55
  56         /* other initial modes */
  57 extern char issetuid;                           /* running setuid */
  58
  59 #define die()           (random() % 6 + 1)
  60 #define sqr(a)          ((a) * (a))
  61 #define min(a,b)        ((a) < (b) ? (a) : (b))
  62
  63 #define grappled(a)     ((a)->file->ngrap)
  64 #define fouled(a)       ((a)->file->nfoul)
  65 #define snagged(a)      (grappled(a) + fouled(a))
  66
  67 #define grappled2(a, b) ((a)->file->grap[(b)->file->index].sn_count)
  68 #define fouled2(a, b)   ((a)->file->foul[(b)->file->index].sn_count)
  69 #define snagged2(a, b)  (grappled2(a, b) + fouled2(a, b))
  70
  71 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 \
  72                           ? grappled2(a, b) : 0)
  73 #define Xfouled2(a, b)  ((a)->file->foul[(b)->file->index].sn_turn < turn-1 \
  74                          ? fouled2(a, b) : 0)
  75 #define Xsnagged2(a, b) (Xgrappled2(a, b) + Xfouled2(a, b))
  76
  77 #define cleangrapple(a, b, c)   Cleansnag(a, b, c, 1)
  78 #define cleanfoul(a, b, c)      Cleansnag(a, b, c, 2)
  79 #define cleansnag(a, b, c)      Cleansnag(a, b, c, 3)
  80
  81 #define sterncolour(sp) ((sp)->file->stern+'0'-((sp)->file->captured ? 10 : 0))
  82 #define sternrow(sp)    ((sp)->file->row + dr[(sp)->file->dir])
  83 #define sterncol(sp)    ((sp)->file->col + dc[(sp)->file->dir])
  84
  85 #define capship(sp)     ((sp)->file->captured?(sp)->file->captured:(sp))
  86
  87 #define readyname(r)    ((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
  88
  89 /* loadL and loadR, should match loadname[] */
  90 #define L_EMPTY         0               /* should be 0, don't change */
  91 #define L_GRAPE         1
  92 #define L_CHAIN         2
  93 #define L_ROUND         3
  94 #define L_DOUBLE        4
  95 #define L_EXPLODE       5
  96
  97 /*
  98  * readyL and readyR, these are bits, except R_EMPTY
  99  */
 100 #define R_EMPTY         0               /* not loaded and not loading */
 101 #define R_LOADING       1               /* loading */
 102 #define R_DOUBLE        2               /* loading double */
 103 #define R_LOADED        4               /* loaded */
 104 #define R_INITIAL       8               /* loaded initial */
 105
 106 #define HULL            0
 107 #define RIGGING         1
 108
 109 #define W_CAPTAIN       1
 110 #define W_CAPTURED      2
 111 #define W_CLASS         3
 112 #define W_CREW          4
 113 #define W_DBP           5
 114 #define W_DRIFT         6
 115 #define W_EXPLODE       7
 116 #define W_FILE          8
 117 #define W_FOUL          9
 118 #define W_GUNL          10
 119 #define W_GUNR          11
 120 #define W_HULL          12
 121 #define W_MOVE          13
 122 #define W_OBP           14
 123 #define W_PCREW         15
 124 #define W_UNFOUL        16
 125 #define W_POINTS        17
 126 #define W_QUAL          18
 127 #define W_UNGRAP        19
 128 #define W_RIGG          20
 129 #define W_COL           21
 130 #define W_DIR           22
 131 #define W_ROW           23
 132 #define W_SIGNAL        24
 133 #define W_SINK          25
 134 #define W_STRUCK        26
 135 #define W_TA            27
 136 #define W_ALIVE         28
 137 #define W_TURN          29
 138 #define W_WIND          30
 139 #define W_FS            31
 140 #define W_GRAP          32
 141 #define W_RIG1          33
 142 #define W_RIG2          34
 143 #define W_RIG3          35
 144 #define W_RIG4          36
 145 #define W_BEGIN         37
 146 #define W_END           38
 147 #define W_DDEAD         39
 148
 149 #define NLOG 10
 150 struct logs {
 151         char l_name[20];
 152         int l_uid;
 153         int l_shipnum;
 154         int l_gamenum;
 155         int l_netpoints;
 156 };
 157
 158 struct BP {
 159         short turnsent;
 160         struct ship *toship;
 161         short mensent;
 162 };
 163
 164 struct snag {
 165         short sn_count;
 166         short sn_turn;
 167 };
 168
 169 #define NSCENE  nscene
 170 #define NSHIP   10
 171 #define NBP     3
 172
 173 #define NNATION 8
 174 #define N_A     0
 175 #define N_B     1
 176 #define N_S     2
 177 #define N_F     3
 178 #define N_J     4
 179 #define N_D     5
 180 #define N_K     6
 181 #define N_O     7
 182
 183 struct File {
 184         int index;
 185         char captain[20];               /* 0 */
 186         short points;                   /* 20 */
 187         unsigned char loadL;            /* 22 */
 188         unsigned char loadR;            /* 24 */
 189         char readyL;                    /* 26 */
 190         char readyR;                    /* 28 */
 191         struct BP OBP[NBP];             /* 30 */
 192         struct BP DBP[NBP];             /* 48 */
 193         char struck;                    /* 66 */
 194         struct ship *captured;          /* 68 */
 195         short pcrew;                    /* 70 */
 196         char movebuf[60];               /* 72 */
 197         char drift;                     /* 132 */
 198         short nfoul;
 199         short ngrap;
 200         struct snag foul[NSHIP];        /* 134 */
 201         struct snag grap[NSHIP];        /* 144 */
 202         char RH;                        /* 274 */
 203         char RG;                        /* 276 */
 204         char RR;                        /* 278 */
 205         char FS;                        /* 280 */
 206         char explode;                   /* 282 */
 207         char sink;                      /* 284 */
 208         unsigned char dir;
 209         short col;
 210         short row;
 211         char loadwith;
 212         char stern;
 213 };
 214
 215 struct ship {
 216         const char *shipname;           /* 0 */
 217         struct shipspecs *specs;        /* 2 */
 218         unsigned char nationality;      /* 4 */
 219         short shiprow;                  /* 6 */
 220         short shipcol;                  /* 8 */
 221         char shipdir;                   /* 10 */
 222         struct File *file;              /* 12 */
 223 };
 224
 225 struct scenario {
 226         char winddir;                   /* 0 */
 227         char windspeed;                 /* 2 */
 228         char windchange;                /* 4 */
 229         unsigned char vessels;          /* 12 */
 230         const char *name;               /* 14 */
 231         struct ship ship[NSHIP];        /* 16 */
 232 };
 233 extern struct scenario scene[];
 234 extern int nscene;
 235
 236 struct shipspecs {
 237         char bs;
 238         char fs;
 239         char ta;
 240         short guns;
 241         unsigned char class;
 242         char hull;
 243         unsigned char qual;
 244         char crew1;
 245         char crew2;
 246         char crew3;
 247         char gunL;
 248         char gunR;
 249         char carL;
 250         char carR;
 251         char rig1;
 252         char rig2;
 253         char rig3;
 254         char rig4;
 255         short pts;
 256 };
 257 extern struct shipspecs specs[];
 258
 259 extern struct scenario *cc;     /* the current scenario */
 260 extern struct ship *ls;         /* &cc->ship[cc->vessels] */
 261
 262 #define SHIP(s)         (&cc->ship[s])
 263 #define foreachship(sp) for ((sp) = cc->ship; (sp) < ls; (sp)++)
 264
 265 struct windeffects {
 266         char A, B, C, D;
 267 };
 268 extern struct windeffects WET[7][6];
 269
 270 struct Tables {
 271         char H, G, C, R;
 272 };
 273 extern struct Tables RigTable[11][6];
 274 extern struct Tables HullTable[11][6];
 275
 276 extern char AMMO[9][4];
 277 extern char HDT[9][10];
 278 extern char HDTrake[9][10];
 279 extern char QUAL[9][5];
 280 extern char MT[9][3];
 281
 282 extern const char *countryname[];
 283 extern const char *classname[];
 284 extern const char *directionname[];
 285 extern const char *qualname[];
 286 extern char loadname[];
 287
 288 extern char rangeofshot[];
 289
 290 extern char dr[], dc[];
 291
 292 extern int winddir;
 293 extern int windspeed;
 294 extern int turn;
 295 extern int game;
 296 extern int alive;
 297 extern int people;
 298 extern char hasdriver;
 299
 300 /* assorted.c */
 301 void table(int, int, int, struct ship *, struct ship *, int);
 302 void Cleansnag(struct ship *, struct ship *, char, char);
 303
 304 /* dr_1.c */
 305 void unfoul(void);
 306 void boardcomp(void);
 307 void resolve(void);
 308 void compcombat(void);
 309 int next(void);
 310
 311 /* dr_2.c */
 312 void thinkofgrapples(void);
 313 void checkup(void);
 314 void prizecheck(void);
 315 void closeon(struct ship *, struct ship *, char *, int, int, int);
 316
 317 /* dr_3.c */
 318 void moveall(void);
 319 void sendbp(struct ship *, struct ship *, int, char);
 320 int toughmelee(struct ship *, struct ship *, int, int);
 321 void reload(void);
 322 void checksails(void);
 323
 324 /* dr_4.c */
 325 void ungrap(struct ship *, struct ship *);
 326 void grap(struct ship *, struct ship *);
 327
 328 /* dr_5.c */
 329 void subtract(struct ship *, int, int [3], struct ship *, int);
 330 int mensent(struct ship *, struct ship *, int [3], struct ship **, int *, char);
 331
 332 /* dr_main.c */
 333 int dr_main(void);
 334
 335 /* game.c */
 336 int maxturns(struct ship *, char *);
 337 int maxmove(struct ship *, int, int);
 338
 339 /* lo_main.c */
 340 int lo_main(void);
 341
 342 /* misc.c */
 343 int range(struct ship *, struct ship *);
 344 struct ship *closestenemy(struct ship *, char, char);
 345 char gunsbear(struct ship *, struct ship *);
 346 int portside(struct ship *, struct ship *, int);
 347 char colours(struct ship *);
 348 void write_log(struct ship *);
 349
 350 /* parties.c */
 351 bool meleeing(struct ship *, struct ship *);
 352 bool boarding(struct ship *, char);
 353 void unboard(struct ship *, struct ship *, char);
 354
 355 /* pl_1.c */
 356 void leave(int) __dead2;
 357 void choke(int) __dead2;
 358 void child(int);
 359
 360 /* pl_2.c */
 361 void play(void) __dead2;
 362
 363 /* pl_3.c */
 364 void acceptcombat(void);
 365 void grapungrap(void);
 366 void unfoulplayer(void);
 367
 368 /* pl_4.c */
 369 void changesail(void);
 370 void acceptsignal(void);
 371 void lookout(void);
 372 const char *saywhat(struct ship *, char);
 373 void eyeball(struct ship *);
 374
 375 /* pl_5.c */
 376 void acceptmove(void);
 377 void acceptboard(void);
 378
 379 /* pl_6.c */
 380 void repair(void);
 381 void loadplayer(void);
 382
 383 /* pl_7.c */
 384 void initscreen(void);
 385 void cleanupscreen(void);
 386 void newturn(int);
 387 void Signal(const char *, struct ship *, ...);
 388 int sgetch(const char *, struct ship *, char);
 389 void sgetstr(const char *, char *, int);
 390 void draw_screen(void);
 391 void draw_view(void);
 392 void draw_turn(void);
 393 void draw_stat(void);
 394 void draw_slot(void);
 395 void draw_board(void);
 396 void centerview(void);
 397 void upview(void);
 398 void downview(void);
 399 void leftview(void);
 400 void rightview(void);
 401
 402 /* pl_main.c */
 403 void pl_main(void) __dead2;
 404
 405 /* sync.c */
 406 void fmtship(char *, size_t, const char *, struct ship *);
 407 void makesignal(struct ship *, const char *, struct ship *, ...);
 408 bool sync_exists(int);
 409 int sync_open(void);
 410 void sync_close(char);
 411 void Write(int, struct ship *, int, int, int, int);
 412 void Writestr(int, struct ship *, const char *);
 413 int Sync(void);