1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)visual.c 8.1 (Berkeley) 5/31/93 34 * $FreeBSD: src/games/trek/visual.c,v 1.4 1999/11/30 03:49:56 billf Exp $ 35 * $DragonFly: src/games/trek/visual.c,v 1.3 2006/09/07 21:19:45 pavalos Exp $ 36 */ 37 38 # include "getpar.h" 39 # include "trek.h" 40 41 /* 42 ** VISUAL SCAN 43 ** 44 ** A visual scan is made in a particular direction of three sectors 45 ** in the general direction specified. This takes time, and 46 ** Klingons can attack you, so it should be done only when sensors 47 ** are out. 48 */ 49 50 /* This struct[] has the delta x, delta y for particular directions */ 51 struct xy Visdelta[11] = 52 { 53 { -1, -1 }, 54 { -1, 0 }, 55 { -1, 1 }, 56 { 0, 1 }, 57 { 1, 1 }, 58 { 1, 0 }, 59 { 1, -1 }, 60 { 0, -1 }, 61 { -1, -1 }, 62 { -1, 0 }, 63 { -1, 1 } 64 }; 65 66 void 67 visual(__unused int unused) 68 { 69 int ix, iy; 70 int co; 71 struct xy *v; 72 73 co = getintpar("direction"); 74 if (co < 0 || co > 360) 75 return; 76 co = (co + 22) / 45; 77 v = &Visdelta[co]; 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("%d,%d %c ", ix, iy, co); 85 v++; 86 ix = Ship.sectx + v->x; 87 iy = Ship.secty + v->y; 88 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 89 co = '?'; 90 else 91 co = Sect[ix][iy]; 92 printf("%c ", co); 93 v++; 94 ix = Ship.sectx + v->x; 95 iy = Ship.secty + v->y; 96 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 97 co = '?'; 98 else 99 co = Sect[ix][iy]; 100 printf("%c %d,%d\n", co, ix, iy); 101 Move.time = 0.05; 102 Move.free = 0; 103 } 104