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Annotation of 43BSDReno/games/trek/visual.c, revision 1.1.1.1

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[] = "@(#)visual.c   5.4 (Berkeley) 6/1/90";
                     22: #endif /* not lint */
                     23: 
                     24: # include      "trek.h"
                     25: 
                     26: /*
                     27: **  VISUAL SCAN
                     28: **
                     29: **     A visual scan is made in a particular direction of three sectors
                     30: **     in the general direction specified.  This takes time, and
                     31: **     Klingons can attack you, so it should be done only when sensors
                     32: **     are out.
                     33: */
                     34: 
                     35: /* This struct[] has the delta x, delta y for particular directions */
                     36: struct xy      Visdelta[11] =
                     37: {
                     38:        -1,     -1,
                     39:        -1,      0,
                     40:        -1,      1,
                     41:         0,      1,
                     42:         1,      1,
                     43:         1,      0,
                     44:         1,     -1,
                     45:         0,     -1,
                     46:        -1,     -1,
                     47:        -1,      0,
                     48:        -1,      1
                     49: };
                     50: 
                     51: visual()
                     52: {
                     53:        register int            ix, iy;
                     54:        int                     co;
                     55:        register struct xy      *v;
                     56: 
                     57:        co = getintpar("direction");
                     58:        if (co < 0 || co > 360)
                     59:                return;
                     60:        co = (co + 22) / 45;
                     61:        v = &Visdelta[co];
                     62:        ix = Ship.sectx + v->x;
                     63:        iy = Ship.secty + v->y;
                     64:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
                     65:                co = '?';
                     66:        else
                     67:                co = Sect[ix][iy];
                     68:        printf("%d,%d %c ", ix, iy, co);
                     69:        v++;
                     70:        ix = Ship.sectx + v->x;
                     71:        iy = Ship.secty + v->y;
                     72:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
                     73:                co = '?';
                     74:        else
                     75:                co = Sect[ix][iy];
                     76:        printf("%c ", co);
                     77:        v++;
                     78:        ix = Ship.sectx + v->x;
                     79:        iy = Ship.secty + v->y;
                     80:        if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS)
                     81:                co = '?';
                     82:        else
                     83:                co = Sect[ix][iy];
                     84:        printf("%c %d,%d\n", co, ix, iy);
                     85:        Move.time = 0.05;
                     86:        Move.free = 0;
                     87: }

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