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Annotation of 43BSD/games/trek/shield.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)shield.c   5.1 (Berkeley) 1/29/86";
                      9: #endif not lint
                     10: 
                     11: # include      "trek.h"
                     12: # include      "getpar.h"
                     13: 
                     14: /*
                     15: **  SHIELD AND CLOAKING DEVICE CONTROL
                     16: **
                     17: **     'f' is one for auto shield up (in case of Condition RED),
                     18: **     zero for shield control, and negative one for cloaking
                     19: **     device control.
                     20: **
                     21: **     Called with an 'up' or 'down' on the same line, it puts
                     22: **     the shields/cloak into the specified mode.  Otherwise it
                     23: **     reports to the user the current mode, and asks if she wishes
                     24: **     to change.
                     25: **
                     26: **     This is not a free move.  Hits that occur as a result of
                     27: **     this move appear as though the shields are half up/down,
                     28: **     so you get partial hits.
                     29: */
                     30: 
                     31: struct cvntab Udtab[] =
                     32: {
                     33:        "u",            "p",                    (int (*)())1,           0,
                     34:        "d",            "own",                  0,              0,
                     35:        0
                     36: };
                     37: 
                     38: shield(f)
                     39: int    f;
                     40: {
                     41:        register int            i;
                     42:        char                    c;
                     43:        struct cvntab           *r;
                     44:        char                    s[100];
                     45:        char                    *device, *dev2, *dev3;
                     46:        int                     ind;
                     47:        char                    *stat;
                     48: 
                     49:        if (f > 0 && (Ship.shldup || damaged(SRSCAN)))
                     50:                return;
                     51:        if (f < 0)
                     52:        {
                     53:                /* cloaking device */
                     54:                if (Ship.ship == QUEENE)
                     55:                        return (printf("Ye Faire Queene does not have the cloaking device.\n"));
                     56:                device = "Cloaking device";
                     57:                dev2 = "is";
                     58:                ind = CLOAK;
                     59:                dev3 = "it";
                     60:                stat = &Ship.cloaked;
                     61:        }
                     62:        else
                     63:        {
                     64:                /* shields */
                     65:                device = "Shields";
                     66:                dev2 = "are";
                     67:                dev3 = "them";
                     68:                ind = SHIELD;
                     69:                stat = &Ship.shldup;
                     70:        }
                     71:        if (damaged(ind))
                     72:        {
                     73:                if (f <= 0)
                     74:                        out(ind);
                     75:                return;
                     76:        }
                     77:        if (Ship.cond == DOCKED)
                     78:        {
                     79:                printf("%s %s down while docked\n", device, dev2);
                     80:                return;
                     81:        }
                     82:        if (f <= 0 && !testnl())
                     83:        {
                     84:                r = getcodpar("Up or down", Udtab);
                     85:                i = (int) r->value;
                     86:        }
                     87:        else
                     88:        {
                     89:                if (*stat)
                     90:                        sprintf(s, "%s %s up.  Do you want %s down", device, dev2, dev3);
                     91:                else
                     92:                        sprintf(s, "%s %s down.  Do you want %s up", device, dev2, dev3);
                     93:                if (!getynpar(s))
                     94:                        return;
                     95:                i = !*stat;
                     96:        }
                     97:        if (*stat == i)
                     98:        {
                     99:                printf("%s already ", device);
                    100:                if (i)
                    101:                        printf("up\n");
                    102:                else
                    103:                        printf("down\n");
                    104:                return;
                    105:        }
                    106:        if (i)
                    107:                if (f >= 0)
                    108:                        Ship.energy -= Param.shupengy;
                    109:                else
                    110:                        Ship.cloakgood = 0;
                    111:        Move.free = 0;
                    112:        if (f >= 0)
                    113:                Move.shldchg = 1;
                    114:        *stat = i;
                    115:        return;
                    116: }

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