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Annotation of 43BSDTahoe/games/trek/visual.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
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)visual.c   5.3 (Berkeley) 6/18/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "trek.h"
        !            23: 
        !            24: /*
        !            25: **  VISUAL SCAN
        !            26: **
        !            27: **     A visual scan is made in a particular direction of three sectors
        !            28: **     in the general direction specified.  This takes time, and
        !            29: **     Klingons can attack you, so it should be done only when sensors
        !            30: **     are out.
        !            31: */
        !            32: 
        !            33: /* This struct[] has the delta x, delta y for particular directions */
        !            34: struct xy      Visdelta[11] =
        !            35: {
        !            36:        -1,     -1,
        !            37:        -1,      0,
        !            38:        -1,      1,
        !            39:         0,      1,
        !            40:         1,      1,
        !            41:         1,      0,
        !            42:         1,     -1,
        !            43:         0,     -1,
        !            44:        -1,     -1,
        !            45:        -1,      0,
        !            46:        -1,      1
        !            47: };
        !            48: 
        !            49: visual()
        !            50: {
        !            51:        register int            ix, iy;
        !            52:        int                     co;
        !            53:        register struct xy      *v;
        !            54: 
        !            55:        co = getintpar("direction");
        !            56:        if (co < 0 || co > 360)
        !            57:                return;
        !            58:        co = (co + 22) / 45;
        !            59:        v = &Visdelta[co];
        !            60:        ix = Ship.sectx + v->x;
        !            61:        iy = Ship.secty + v->y;
        !            62:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            63:                co = '?';
        !            64:        else
        !            65:                co = Sect[ix][iy];
        !            66:        printf("%d,%d %c ", ix, iy, co);
        !            67:        v++;
        !            68:        ix = Ship.sectx + v->x;
        !            69:        iy = Ship.secty + v->y;
        !            70:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            71:                co = '?';
        !            72:        else
        !            73:                co = Sect[ix][iy];
        !            74:        printf("%c ", co);
        !            75:        v++;
        !            76:        ix = Ship.sectx + v->x;
        !            77:        iy = Ship.secty + v->y;
        !            78:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
        !            79:                co = '?';
        !            80:        else
        !            81:                co = Sect[ix][iy];
        !            82:        printf("%c %d,%d\n", co, ix, iy);
        !            83:        Move.time = 0.05;
        !            84:        Move.free = 0;
        !            85: }

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