1 /* @(#)visual.c 8.1 (Berkeley) 5/31/93 */ 2 /* $NetBSD: visual.c,v 1.10 2009/08/12 08:54:54 dholland Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <stdio.h> 34 #include "trek.h" 35 #include "getpar.h" 36 37 /* 38 ** VISUAL SCAN 39 ** 40 ** A visual scan is made in a particular direction of three sectors 41 ** in the general direction specified. This takes time, and 42 ** Klingons can attack you, so it should be done only when sensors 43 ** are out. 44 */ 45 46 /* This struct[] has the delta x, delta y for particular directions */ 47 static struct xy Visdelta[11] = { 48 { -1, -1 }, 49 { -1, 0 }, 50 { -1, 1 }, 51 { 0, 1 }, 52 { 1, 1 }, 53 { 1, 0 }, 54 { 1, -1 }, 55 { 0, -1 }, 56 { -1, -1 }, 57 { -1, 0 }, 58 { -1, 1 } 59 }; 60 61 /*ARGSUSED*/ 62 void 63 visual(int z __unused) 64 { 65 int ix, iy; 66 int co; 67 struct xy *v; 68 69 co = getintpar("direction"); 70 if (co < 0 || co > 360) 71 return; 72 co = (co + 22) / 45; 73 v = &Visdelta[co]; 74 ix = Ship.sectx + v->x; 75 iy = Ship.secty + v->y; 76 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 77 co = '?'; 78 else 79 co = Sect[ix][iy]; 80 printf("%d,%d %c ", ix, iy, co); 81 v++; 82 ix = Ship.sectx + v->x; 83 iy = Ship.secty + v->y; 84 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 85 co = '?'; 86 else 87 co = Sect[ix][iy]; 88 printf("%c ", co); 89 v++; 90 ix = Ship.sectx + v->x; 91 iy = Ship.secty + v->y; 92 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 93 co = '?'; 94 else 95 co = Sect[ix][iy]; 96 printf("%c %d,%d\n", co, ix, iy); 97 Move.time = 0.05; 98 Move.free = 0; 99 } 100