| 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); |
| 357 | void choke(void); |
| 358 | void child(void); |
| 359 | |
| 360 | /* pl_2.c */ |
| 361 | void play(void); |
| 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(void); |
| 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 | int pl_main(void); |
| 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); |