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 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)visual.c 8.1 (Berkeley) 5/31/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD: src/games/trek/visual.c,v 1.4 1999/11/30 03:49:56 billf Exp $"; 40 #endif /* not lint */ 41 42 # include "trek.h" 43 44 /* 45 ** VISUAL SCAN 46 ** 47 ** A visual scan is made in a particular direction of three sectors 48 ** in the general direction specified. This takes time, and 49 ** Klingons can attack you, so it should be done only when sensors 50 ** are out. 51 */ 52 53 /* This struct[] has the delta x, delta y for particular directions */ 54 struct xy Visdelta[11] = 55 { 56 -1, -1, 57 -1, 0, 58 -1, 1, 59 0, 1, 60 1, 1, 61 1, 0, 62 1, -1, 63 0, -1, 64 -1, -1, 65 -1, 0, 66 -1, 1 67 }; 68 69 visual() 70 { 71 int ix, iy; 72 int co; 73 struct xy *v; 74 75 co = getintpar("direction"); 76 if (co < 0 || co > 360) 77 return; 78 co = (co + 22) / 45; 79 v = &Visdelta[co]; 80 ix = Ship.sectx + v->x; 81 iy = Ship.secty + v->y; 82 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 83 co = '?'; 84 else 85 co = Sect[ix][iy]; 86 printf("%d,%d %c ", ix, iy, co); 87 v++; 88 ix = Ship.sectx + v->x; 89 iy = Ship.secty + v->y; 90 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 91 co = '?'; 92 else 93 co = Sect[ix][iy]; 94 printf("%c ", co); 95 v++; 96 ix = Ship.sectx + v->x; 97 iy = Ship.secty + v->y; 98 if (ix < 0 || ix >= NSECTS || iy < 0 || iy >= NSECTS) 99 co = '?'; 100 else 101 co = Sect[ix][iy]; 102 printf("%c %d,%d\n", co, ix, iy); 103 Move.time = 0.05; 104 Move.free = 0; 105 } 106