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Annotation of 42BSD/games/trek/visual.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)visual.c   4.2     (Berkeley)      5/27/83";
        !             3: #endif not lint
        !             4: 
        !             5: # include      "trek.h"
        !             6: 
        !             7: /*
        !             8: **  VISUAL SCAN
        !             9: **
        !            10: **     A visual scan is made in a particular direction of three sectors
        !            11: **     in the general direction specified.  This takes time, and
        !            12: **     Klingons can attack you, so it should be done only when sensors
        !            13: **     are out.
        !            14: */
        !            15: 
        !            16: /* This struct[] has the delta x, delta y for particular directions */
        !            17: struct xy      Visdelta[11] =
        !            18: {
        !            19:        -1,     -1,
        !            20:        -1,      0,
        !            21:        -1,      1,
        !            22:         0,      1,
        !            23:         1,      1,
        !            24:         1,      0,
        !            25:         1,     -1,
        !            26:         0,     -1,
        !            27:        -1,     -1,
        !            28:        -1,      0,
        !            29:        -1,      1
        !            30: };
        !            31: 
        !            32: visual()
        !            33: {
        !            34:        register int            ix, iy;
        !            35:        int                     co;
        !            36:        register struct xy      *v;
        !            37: 
        !            38:        co = getintpar("direction");
        !            39:        if (co < 0 || co > 360)
        !            40:                return;
        !            41:        co = (co + 22) / 45;
        !            42:        v = &Visdelta[co];
        !            43:        ix = Ship.sectx + v->x;
        !            44:        iy = Ship.secty + v->y;
        !            45:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            46:                co = '?';
        !            47:        else
        !            48:                co = Sect[ix][iy];
        !            49:        printf("%d,%d %c ", ix, iy, co);
        !            50:        v++;
        !            51:        ix = Ship.sectx + v->x;
        !            52:        iy = Ship.secty + v->y;
        !            53:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            54:                co = '?';
        !            55:        else
        !            56:                co = Sect[ix][iy];
        !            57:        printf("%c ", co);
        !            58:        v++;
        !            59:        ix = Ship.sectx + v->x;
        !            60:        iy = Ship.secty + v->y;
        !            61:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            62:                co = '?';
        !            63:        else
        !            64:                co = Sect[ix][iy];
        !            65:        printf("%c %d,%d\n", co, ix, iy);
        !            66:        Move.time = 0.05;
        !            67:        Move.free = 0;
        !            68: }

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