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Annotation of 43BSDReno/games/trek/shield.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)shield.c   5.5 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: # include      "trek.h"
        !            25: # include      "getpar.h"
        !            26: 
        !            27: /*
        !            28: **  SHIELD AND CLOAKING DEVICE CONTROL
        !            29: **
        !            30: **     'f' is one for auto shield up (in case of Condition RED),
        !            31: **     zero for shield control, and negative one for cloaking
        !            32: **     device control.
        !            33: **
        !            34: **     Called with an 'up' or 'down' on the same line, it puts
        !            35: **     the shields/cloak into the specified mode.  Otherwise it
        !            36: **     reports to the user the current mode, and asks if she wishes
        !            37: **     to change.
        !            38: **
        !            39: **     This is not a free move.  Hits that occur as a result of
        !            40: **     this move appear as though the shields are half up/down,
        !            41: **     so you get partial hits.
        !            42: */
        !            43: 
        !            44: struct cvntab Udtab[] =
        !            45: {
        !            46:        "u",            "p",                    (int (*)())1,           0,
        !            47:        "d",            "own",                  0,              0,
        !            48:        0
        !            49: };
        !            50: 
        !            51: shield(f)
        !            52: int    f;
        !            53: {
        !            54:        register int            i;
        !            55:        char                    c;
        !            56:        struct cvntab           *r;
        !            57:        char                    s[100];
        !            58:        char                    *device, *dev2, *dev3;
        !            59:        int                     ind;
        !            60:        char                    *stat;
        !            61: 
        !            62:        if (f > 0 && (Ship.shldup || damaged(SRSCAN)))
        !            63:                return;
        !            64:        if (f < 0)
        !            65:        {
        !            66:                /* cloaking device */
        !            67:                if (Ship.ship == QUEENE)
        !            68:                        return (printf("Ye Faire Queene does not have the cloaking device.\n"));
        !            69:                device = "Cloaking device";
        !            70:                dev2 = "is";
        !            71:                ind = CLOAK;
        !            72:                dev3 = "it";
        !            73:                stat = &Ship.cloaked;
        !            74:        }
        !            75:        else
        !            76:        {
        !            77:                /* shields */
        !            78:                device = "Shields";
        !            79:                dev2 = "are";
        !            80:                dev3 = "them";
        !            81:                ind = SHIELD;
        !            82:                stat = &Ship.shldup;
        !            83:        }
        !            84:        if (damaged(ind))
        !            85:        {
        !            86:                if (f <= 0)
        !            87:                        out(ind);
        !            88:                return;
        !            89:        }
        !            90:        if (Ship.cond == DOCKED)
        !            91:        {
        !            92:                printf("%s %s down while docked\n", device, dev2);
        !            93:                return;
        !            94:        }
        !            95:        if (f <= 0 && !testnl())
        !            96:        {
        !            97:                r = getcodpar("Up or down", Udtab);
        !            98:                i = (int) r->value;
        !            99:        }
        !           100:        else
        !           101:        {
        !           102:                if (*stat)
        !           103:                        (void)sprintf(s, "%s %s up.  Do you want %s down", device, dev2, dev3);
        !           104:                else
        !           105:                        (void)sprintf(s, "%s %s down.  Do you want %s up", device, dev2, dev3);
        !           106:                if (!getynpar(s))
        !           107:                        return;
        !           108:                i = !*stat;
        !           109:        }
        !           110:        if (*stat == i)
        !           111:        {
        !           112:                printf("%s already ", device);
        !           113:                if (i)
        !           114:                        printf("up\n");
        !           115:                else
        !           116:                        printf("down\n");
        !           117:                return;
        !           118:        }
        !           119:        if (i)
        !           120:                if (f >= 0)
        !           121:                        Ship.energy -= Param.shupengy;
        !           122:                else
        !           123:                        Ship.cloakgood = 0;
        !           124:        Move.free = 0;
        !           125:        if (f >= 0)
        !           126:                Move.shldchg = 1;
        !           127:        *stat = i;
        !           128:        return;
        !           129: }

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