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extern.h revision 1.30
      1 /*	$NetBSD: extern.h,v 1.30 2009/03/14 19:35:13 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 
     36 #include "machdep.h"
     37 
     38 	/* program mode */
     39 extern int mode;
     40 #define MODE_PLAYER	1
     41 #define MODE_DRIVER	2
     42 #define MODE_LOGGER	3
     43 
     44 	/* command line flags */
     45 extern int randomize;			/* -x, give first available ship */
     46 extern int longfmt;			/* -l, print score in long format */
     47 extern int nobells;			/* -b, don't ring bell before Signal */
     48 
     49 	/* other initial modes */
     50 extern gid_t gid;
     51 extern gid_t egid;
     52 
     53 #define dieroll()		((random()) % 6 + 1)
     54 #define sqr(a)		((a) * (a))
     55 #define min(a,b)	((a) < (b) ? (a) : (b))
     56 
     57 #define grappled(a)	((a)->file->ngrap)
     58 #define fouled(a)	((a)->file->nfoul)
     59 #define snagged(a)	(grappled(a) + fouled(a))
     60 
     61 #define grappled2(a, b)	((a)->file->grap[(b)->file->index].sn_count)
     62 #define fouled2(a, b)	((a)->file->foul[(b)->file->index].sn_count)
     63 #define snagged2(a, b)	(grappled2(a, b) + fouled2(a, b))
     64 
     65 #define Xgrappled2(a, b) ((a)->file->grap[(b)->file->index].sn_turn < turn-1 \
     66 			  ? grappled2(a, b) : 0)
     67 #define Xfouled2(a, b)	((a)->file->foul[(b)->file->index].sn_turn < turn-1 \
     68 			 ? fouled2(a, b) : 0)
     69 #define Xsnagged2(a, b)	(Xgrappled2(a, b) + Xfouled2(a, b))
     70 
     71 #define cleangrapple(a, b, c)	Cleansnag(a, b, c, 1)
     72 #define cleanfoul(a, b, c)	Cleansnag(a, b, c, 2)
     73 #define cleansnag(a, b, c)	Cleansnag(a, b, c, 3)
     74 
     75 #define sterncolour(sp)	((sp)->file->stern+'0'-((sp)->file->captured ? 10 : 0))
     76 #define sternrow(sp)	((sp)->file->row + dr[(sp)->file->dir])
     77 #define sterncol(sp)	((sp)->file->col + dc[(sp)->file->dir])
     78 
     79 #define capship(sp)	((sp)->file->captured?(sp)->file->captured:(sp))
     80 
     81 #define readyname(r)	((r) & R_LOADING ? '*' : ((r) & R_INITIAL ? '!' : ' '))
     82 
     83 /* loadL and loadR, should match loadname[] */
     84 #define L_EMPTY		0		/* should be 0, don't change */
     85 #define L_GRAPE		1
     86 #define L_CHAIN		2
     87 #define L_ROUND		3
     88 #define L_DOUBLE	4
     89 #define L_EXPLODE	5
     90 
     91 /*
     92  * readyL and readyR, these are bits, except R_EMPTY
     93  */
     94 #define R_EMPTY		0		/* not loaded and not loading */
     95 #define R_LOADING	1		/* loading */
     96 #define R_DOUBLE	2		/* loading double */
     97 #define R_LOADED	4		/* loaded */
     98 #define R_INITIAL	8		/* loaded initial */
     99 
    100 #define HULL		0
    101 #define RIGGING		1
    102 
    103 #define W_CAPTAIN	1
    104 #define W_CAPTURED	2
    105 #define W_CLASS		3
    106 #define W_CREW		4
    107 #define W_DBP		5
    108 #define W_DRIFT		6
    109 #define W_EXPLODE	7
    110 #define W_FILE		8
    111 #define W_FOUL		9
    112 #define W_GUNL		10
    113 #define W_GUNR		11
    114 #define W_HULL		12
    115 #define W_MOVE		13
    116 #define W_OBP		14
    117 #define W_PCREW		15
    118 #define W_UNFOUL	16
    119 #define W_POINTS	17
    120 #define W_QUAL		18
    121 #define W_UNGRAP	19
    122 #define W_RIGG		20
    123 #define W_COL		21
    124 #define W_DIR		22
    125 #define W_ROW		23
    126 #define W_SIGNAL	24
    127 #define W_SINK		25
    128 #define W_STRUCK	26
    129 #define W_TA		27
    130 #define W_ALIVE		28
    131 #define W_TURN		29
    132 #define W_WIND		30
    133 #define W_FS		31
    134 #define W_GRAP		32
    135 #define W_RIG1		33
    136 #define W_RIG2		34
    137 #define W_RIG3		35
    138 #define W_RIG4		36
    139 #define W_BEGIN		37
    140 #define W_END		38
    141 #define W_DDEAD		39
    142 
    143 #define NLOG 10
    144 struct logs {
    145 	char l_name[20];
    146 	int l_uid;
    147 	int l_shipnum;
    148 	int l_gamenum;
    149 	int l_netpoints;
    150 };
    151 
    152 struct BP {
    153 	struct ship *toship;
    154 	short turnsent;
    155 	short mensent;
    156 };
    157 
    158 struct snag {
    159 	short sn_count;
    160 	short sn_turn;
    161 };
    162 
    163 #define NSCENE	nscene
    164 #define NSHIP	10
    165 #define NBP	3
    166 
    167 #define NNATION	8
    168 #define N_A	0
    169 #define N_B	1
    170 #define N_S	2
    171 #define N_F	3
    172 #define N_J	4
    173 #define N_D	5
    174 #define N_K	6
    175 #define N_O	7
    176 
    177 struct File {
    178 	int index;
    179 	char captain[20];		/* 0 */
    180 	short points;			/* 20 */
    181 	unsigned char loadL;		/* 22 */
    182 	unsigned char loadR;		/* 24 */
    183 	unsigned char readyL;		/* 26 */
    184 	unsigned char readyR;		/* 28 */
    185 	struct BP OBP[NBP];		/* 30 */
    186 	struct BP DBP[NBP];		/* 48 */
    187 	char struck;			/* 66 */
    188 	struct ship *captured;		/* 68 */
    189 	short pcrew;			/* 70 */
    190 	char movebuf[10];		/* 72 */
    191 	char drift;			/* 82 */
    192 	short nfoul;
    193 	short ngrap;
    194 	struct snag foul[NSHIP];	/* 84 */
    195 	struct snag grap[NSHIP];	/* 124 */
    196 	char RH;			/* 224 */
    197 	char RG;			/* 226 */
    198 	char RR;			/* 228 */
    199 	char FS;			/* 230 */
    200 	char explode;			/* 232 */
    201 	char sink;			/* 234 */
    202 	unsigned char dir;
    203 	short col;
    204 	short row;
    205 	char loadwith;
    206 	char stern;
    207 };
    208 
    209 struct ship {
    210 	const char *shipname;		/* 0 */
    211 	struct shipspecs *specs;	/* 2 */
    212 	unsigned char nationality;	/* 4 */
    213 	short shiprow;			/* 6 */
    214 	short shipcol;			/* 8 */
    215 	char shipdir;			/* 10 */
    216 	struct File *file;		/* 12 */
    217 };
    218 
    219 struct scenario {
    220 	char winddir;			/* 0 */
    221 	char windspeed;			/* 2 */
    222 	char windchange;		/* 4 */
    223 	unsigned char vessels;		/* 12 */
    224 	const char *name;		/* 14 */
    225 	struct ship ship[NSHIP];	/* 16 */
    226 };
    227 extern struct scenario scene[];
    228 extern int nscene;
    229 
    230 struct shipspecs {
    231 	char bs;
    232 	char fs;
    233 	char ta;
    234 	short guns;
    235 	unsigned char class;
    236 	char hull;
    237 	unsigned char qual;
    238 	char crew1;
    239 	char crew2;
    240 	char crew3;
    241 	char gunL;
    242 	char gunR;
    243 	char carL;
    244 	char carR;
    245 	int rig1;
    246 	int rig2;
    247 	int rig3;
    248 	int rig4;
    249 	short pts;
    250 };
    251 extern struct shipspecs specs[];
    252 
    253 extern struct scenario *cc;		/* the current scenario */
    254 extern struct ship *ls;		/* &cc->ship[cc->vessels] */
    255 
    256 #define SHIP(s)		(&cc->ship[s])
    257 #define foreachship(sp)	for ((sp) = cc->ship; (sp) < ls; (sp)++)
    258 
    259 struct windeffects {
    260 	char A, B, C, D;
    261 };
    262 extern const struct windeffects WET[7][6];
    263 
    264 struct Tables {
    265 	char H, G, C, R;
    266 };
    267 extern const struct Tables RigTable[11][6];
    268 extern const struct Tables HullTable[11][6];
    269 
    270 extern const char AMMO[9][4];
    271 extern const char HDT[9][10];
    272 extern const char HDTrake[9][10];
    273 extern const char QUAL[9][5];
    274 extern const char MT[9][3];
    275 
    276 extern const char *const countryname[];
    277 extern const char *const classname[];
    278 extern const char *const directionname[];
    279 extern const char *const qualname[];
    280 extern const char loadname[];
    281 
    282 extern const char rangeofshot[];
    283 
    284 extern const char dr[], dc[];
    285 
    286 extern int winddir;
    287 extern int windspeed;
    288 extern int turn;
    289 extern int game;
    290 extern int alive;
    291 extern int people;
    292 extern int hasdriver;
    293 
    294 /* assorted.c */
    295 void table(struct ship *, struct ship *, int, int, int, int);
    296 void Cleansnag(struct ship *, struct ship *, int, int);
    297 
    298 /* dr_1.c */
    299 void unfoul(void);
    300 void boardcomp(void);
    301 void resolve(void);
    302 void compcombat(void);
    303 int next(void);
    304 
    305 /* dr_2.c */
    306 void thinkofgrapples(void);
    307 void checkup(void);
    308 void prizecheck(void);
    309 void closeon(struct ship *, struct ship *, char *, size_t, int, int, int);
    310 
    311 /* dr_3.c */
    312 void moveall(void);
    313 void sendbp(struct ship *, struct ship *, int, int);
    314 int is_toughmelee(struct ship *, struct ship *, int, int);
    315 void reload(void);
    316 void checksails(void);
    317 
    318 /* dr_4.c */
    319 void ungrap(struct ship *, struct ship *);
    320 void grap(struct ship *, struct ship *);
    321 
    322 /* dr_5.c */
    323 void subtract(struct ship *, struct ship *, int, int [3], int);
    324 int mensent(struct ship *, struct ship *, int[3], struct ship **, int *, int);
    325 
    326 /* dr_main.c */
    327 int dr_main(void);
    328 
    329 /* game.c */
    330 int maxturns(struct ship *, char *);
    331 int maxmove(struct ship *, int, int);
    332 
    333 /* lo_main.c */
    334 int lo_main(void);
    335 
    336 /* misc.c */
    337 int range(struct ship *, struct ship *);
    338 struct ship *closestenemy(struct ship *, int, int);
    339 int gunsbear(struct ship *, struct ship *);
    340 int portside(struct ship *, struct ship *, int);
    341 int colours(struct ship *);
    342 void logger(struct ship *);
    343 
    344 /* parties.c */
    345 int meleeing(struct ship *, struct ship *);
    346 int boarding(struct ship *, int);
    347 void unboard(struct ship *, struct ship *, int);
    348 
    349 /* pl_1.c */
    350 void leave(int) __attribute__((__noreturn__));
    351 void choke(int) __attribute__((__noreturn__));
    352 void child(int);
    353 
    354 /* pl_2.c */
    355 void play(void) __attribute__((__noreturn__));
    356 
    357 /* pl_3.c */
    358 void acceptcombat(void);
    359 void grapungrap(void);
    360 void unfoulplayer(void);
    361 
    362 /* pl_4.c */
    363 void changesail(void);
    364 void acceptsignal(void);
    365 void lookout(void);
    366 const char *saywhat(struct ship *, int);
    367 void eyeball(struct ship *);
    368 
    369 /* pl_5.c */
    370 void acceptmove(void);
    371 void acceptboard(void);
    372 
    373 /* pl_6.c */
    374 void repair(void);
    375 void loadplayer(void);
    376 
    377 /* pl_7.c */
    378 void initscreen(void);
    379 void cleanupscreen(void);
    380 void newturn(int);
    381 void Signal(const char *, struct ship *, ...)
    382 	 __attribute__((__format__(__printf__,1,3)));
    383 void Msg(const char *, ...)
    384 	 __attribute__((__format__(__printf__,1,2)));
    385 void prompt(const char *, struct ship *);
    386 int sgetch(const char *, struct ship *, int);
    387 void sgetstr(const char *, char *, int);
    388 void draw_screen(void);
    389 void draw_view(void);
    390 void draw_turn(void);
    391 void draw_stat(void);
    392 void draw_slot(void);
    393 void draw_board(void);
    394 void centerview(void);
    395 void upview(void);
    396 void downview(void);
    397 void leftview(void);
    398 void rightview(void);
    399 
    400 /* pl_main.c */
    401 int pl_main(void);
    402 
    403 /* sync.c */
    404 void fmtship(char *, size_t, const char *, struct ship *);
    405 void makesignal(struct ship *, const char *, struct ship *, ...)
    406 	 __attribute__((__format__(__printf__,2,4)));
    407 void makemsg(struct ship *, const char *, ...)
    408 	 __attribute__((__format__(__printf__,2,3)));
    409 int sync_exists(int);
    410 int sync_open(void);
    411 void sync_close(int);
    412 void Write(int, struct ship *, long, long, long, long);
    413 void Writestr(int, struct ship *, const char *);
    414 int Sync(void);
    415