1: /*      $NetBSD: game.c,v 1.11 2003/08/07 09:37:42 agc 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: 
   32: #include <sys/cdefs.h>
   33: #ifndef lint
   34: #if 0
   35: static char sccsid[] = "@(#)game.c      8.2 (Berkeley) 4/28/95";
   36: #else
   37: __RCSID("$NetBSD: game.c,v 1.11 2003/08/07 09:37:42 agc Exp $");
   38: #endif
   39: #endif /* not lint */
   40: 
   41: #include <sys/types.h>
   42: #include "extern.h"
   43: 
   44: int
   45: maxturns(struct ship *ship, char *af)
   46: {
   47:         int turns;
   48: 
   49:         turns = ship->specs->ta;
   50:         *af = (ship->file->drift > 1 && turns);
   51:         if (*af != '\0') {
   52:                 turns--;
   53:                 if (ship->file->FS == 1)
   54:                         turns = 0;
   55:         }
   56:         return turns;
   57: }
   58: 
   59: int
   60: maxmove(struct ship *ship, int dir, int fs)
   61: {
   62:         int riggone = 0, Move, flank = 0;
   63: 
   64:         Move = ship->specs->bs;
   65:         if (!ship->specs->rig1)
   66:                 riggone++;
   67:         if (!ship->specs->rig2)
   68:                 riggone++;
   69:         if (!ship->specs->rig3)
   70:                 riggone++;
   71:         if (!ship->specs->rig4)
   72:                 riggone++;
   73:         if ((ship->file->FS || fs) && fs != -1) {
   74:                 flank = 1;
   75:                 Move = ship->specs->fs;
   76:         }
   77:         if (dir == winddir)
   78:                 Move -= 1 + WET[windspeed][ship->specs->class-1].B;
   79:         else if (dir == winddir + 2 || dir == winddir - 2 || dir == winddir - 6 || dir == winddir + 6)
   80:                 Move -= 1 + WET[windspeed][ship->specs->class-1].C;
   81:         else if (dir == winddir + 3 || dir == winddir - 3 || dir == winddir - 5 || dir == winddir + 5)
   82:                 Move = (flank ? 2 : 1) - WET[windspeed][ship->specs->class-1].D;
   83:         else if (dir == winddir + 4 || dir == winddir - 4)
   84:                 Move = 0;
   85:         else 
   86:                 Move -= WET[windspeed][ship->specs->class-1].A;
   87:         Move -= riggone;
   88:         Move = Move < 0 ? 0 : Move;
   89:         return(Move);
   90: }