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Annotation of 42BSD/games/trek/shield.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char sccsid[] = "@(#)shield.c   4.2     (Berkeley)      5/27/83";
                      3: #endif not lint
                      4: 
                      5: # include      "trek.h"
                      6: # include      "getpar.h"
                      7: 
                      8: /*
                      9: **  SHIELD AND CLOAKING DEVICE CONTROL
                     10: **
                     11: **     'f' is one for auto shield up (in case of Condition RED),
                     12: **     zero for shield control, and negative one for cloaking
                     13: **     device control.
                     14: **
                     15: **     Called with an 'up' or 'down' on the same line, it puts
                     16: **     the shields/cloak into the specified mode.  Otherwise it
                     17: **     reports to the user the current mode, and asks if she wishes
                     18: **     to change.
                     19: **
                     20: **     This is not a free move.  Hits that occur as a result of
                     21: **     this move appear as though the shields are half up/down,
                     22: **     so you get partial hits.
                     23: */
                     24: 
                     25: struct cvntab Udtab[] =
                     26: {
                     27:        "u",            "p",                    (int (*)())1,           0,
                     28:        "d",            "own",                  0,              0,
                     29:        0
                     30: };
                     31: 
                     32: shield(f)
                     33: int    f;
                     34: {
                     35:        register int            i;
                     36:        char                    c;
                     37:        struct cvntab           *r;
                     38:        char                    s[100];
                     39:        char                    *device, *dev2, *dev3;
                     40:        int                     ind;
                     41:        char                    *stat;
                     42: 
                     43:        if (f > 0 && (Ship.shldup || damaged(SRSCAN)))
                     44:                return;
                     45:        if (f < 0)
                     46:        {
                     47:                /* cloaking device */
                     48:                if (Ship.ship == QUEENE)
                     49:                        return (printf("Ye Faire Queene does not have the cloaking device.\n"));
                     50:                device = "Cloaking device";
                     51:                dev2 = "is";
                     52:                ind = CLOAK;
                     53:                dev3 = "it";
                     54:                stat = &Ship.cloaked;
                     55:        }
                     56:        else
                     57:        {
                     58:                /* shields */
                     59:                device = "Shields";
                     60:                dev2 = "are";
                     61:                dev3 = "them";
                     62:                ind = SHIELD;
                     63:                stat = &Ship.shldup;
                     64:        }
                     65:        if (damaged(ind))
                     66:        {
                     67:                if (f <= 0)
                     68:                        out(ind);
                     69:                return;
                     70:        }
                     71:        if (Ship.cond == DOCKED)
                     72:        {
                     73:                printf("%s %s down while docked\n", device, dev2);
                     74:                return;
                     75:        }
                     76:        if (f <= 0 && !testnl())
                     77:        {
                     78:                r = getcodpar("Up or down", Udtab);
                     79:                i = (int) r->value;
                     80:        }
                     81:        else
                     82:        {
                     83:                if (*stat)
                     84:                        sprintf(s, "%s %s up.  Do you want %s down", device, dev2, dev3);
                     85:                else
                     86:                        sprintf(s, "%s %s down.  Do you want %s up", device, dev2, dev3);
                     87:                if (!getynpar(s))
                     88:                        return;
                     89:                i = !*stat;
                     90:        }
                     91:        if (*stat == i)
                     92:        {
                     93:                printf("%s already ", device);
                     94:                if (i)
                     95:                        printf("up\n");
                     96:                else
                     97:                        printf("down\n");
                     98:                return;
                     99:        }
                    100:        if (i)
                    101:                if (f >= 0)
                    102:                        Ship.energy -= Param.shupengy;
                    103:                else
                    104:                        Ship.cloakgood = 0;
                    105:        Move.free = 0;
                    106:        if (f >= 0)
                    107:                Move.shldchg = 1;
                    108:        *stat = i;
                    109:        return;
                    110: }

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