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[unix-history] / usr / src / games / sail / parties.c

#ifndef lint
static  char *sccsid = "@(#)parties.c   1.2 83/07/20";
#endif

#include "externs.h"

meleeing(from, to)
struct ship *from;
register struct ship *to;
{
       register struct BP *p = from->file->OBP;
       register struct BP *q = p + NBP;

       for (; p < q; p++)
               if (p->turnsent && p->toship == to)
                       return 1;
       return 0;
}

boarding(from, isdefense)
register struct ship *from;
char isdefense;
{
       register struct BP *p = isdefense ? from->file->DBP : from->file->OBP;
       register struct BP *q = p + NBP;

       for (; p < q; p++)
               if (p->turnsent)
                       return 1;
       return 0;
}

Snagged(ship, isgrap)
struct ship *ship;
char isgrap;
{
       register int Snags = 0;
       register struct snag *sp, *sq;

       sp = isgrap ? ship->file->grapples : ship->file->fouls;
       sq = sp + NSHIP;
       for (; sp < sq; sp++)
               if (sp->turnfoul)
                       Snags++;
       return Snags;
}

Snagged2(ship, to, isgrap, isX)
struct ship *ship, *to;
char isgrap, isX;
{
       register Snags = 0;
       register struct snag *sp, *sq;

       sp = isgrap ? ship->file->grapples : ship->file->fouls;
       sq = sp + NSHIP;
       for (; sp < sq; sp++) {
               if (sp->turnfoul && sp->toship == to
                   && (!isX || sp->turnfoul < turn - 1
                               && ship->file->loadwith==L_GRAPE))
                       Snags++;
       }
       return Snags;
}

unboard(ship, to, isdefense)
register struct ship *ship, *to;
register char isdefense;
{
       register struct BP *p = isdefense ? ship->file->DBP : ship->file->OBP;
       register n;

       for (n = 0; n < NBP; p++, n++)
               if (p->turnsent && (p->toship == to || isdefense || ship == to))
                       Write(isdefense ? W_DBP : W_OBP, ship, 0, n, 0, 0, 0);
}