1 /* $NetBSD: move_robs.c,v 1.4 1997/10/12 14:10:00 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)move_robs.c 8.1 (Berkeley) 5/31/93"; 40 #else 41 __RCSID("$NetBSD: move_robs.c,v 1.4 1997/10/12 14:10:00 lukem Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 # include "robots.h" 46 47 /* 48 * move_robots: 49 * Move the robots around 50 */ 51 void 52 move_robots(was_sig) 53 int was_sig; 54 { 55 COORD *rp; 56 57 if (Real_time) 58 signal(SIGALRM, move_robots); 59 # ifdef DEBUG 60 move(Min.y, Min.x); 61 addch(inch()); 62 move(Max.y, Max.x); 63 addch(inch()); 64 # endif DEBUG 65 for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++) { 66 if (rp->y < 0) 67 continue; 68 mvaddch(rp->y, rp->x, ' '); 69 Field[rp->y][rp->x]--; 70 rp->y += sign(My_pos.y - rp->y); 71 rp->x += sign(My_pos.x - rp->x); 72 if (rp->y <= 0) 73 rp->y = 0; 74 else if (rp->y >= Y_FIELDSIZE) 75 rp->y = Y_FIELDSIZE - 1; 76 if (rp->x <= 0) 77 rp->x = 0; 78 else if (rp->x >= X_FIELDSIZE) 79 rp->x = X_FIELDSIZE - 1; 80 Field[rp->y][rp->x]++; 81 } 82 83 Min.y = Y_FIELDSIZE; 84 Min.x = X_FIELDSIZE; 85 Max.y = 0; 86 Max.x = 0; 87 for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++) 88 if (rp->y < 0) 89 continue; 90 else if (rp->y == My_pos.y && rp->x == My_pos.x) 91 Dead = TRUE; 92 else if (Field[rp->y][rp->x] > 1) { 93 mvaddch(rp->y, rp->x, HEAP); 94 rp->y = -1; 95 Num_robots--; 96 if (Waiting) 97 Wait_bonus++; 98 add_score(ROB_SCORE); 99 } 100 else { 101 mvaddch(rp->y, rp->x, ROBOT); 102 if (rp->y < Min.y) 103 Min.y = rp->y; 104 if (rp->x < Min.x) 105 Min.x = rp->x; 106 if (rp->y > Max.y) 107 Max.y = rp->y; 108 if (rp->x > Max.x) 109 Max.x = rp->x; 110 } 111 112 if (was_sig) { 113 refresh(); 114 if (Dead || Num_robots <= 0) 115 longjmp(End_move, 0); 116 } 117 118 # ifdef DEBUG 119 standout(); 120 move(Min.y, Min.x); 121 addch(inch()); 122 move(Max.y, Max.x); 123 addch(inch()); 124 standend(); 125 # endif DEBUG 126 if (Real_time) 127 alarm(3); 128 } 129 130 /* 131 * add_score: 132 * Add a score to the overall point total 133 */ 134 void 135 add_score(add) 136 int add; 137 { 138 Score += add; 139 move(Y_SCORE, X_SCORE); 140 printw("%d", Score); 141 } 142 143 /* 144 * sign: 145 * Return the sign of the number 146 */ 147 int 148 sign(n) 149 int n; 150 { 151 if (n < 0) 152 return -1; 153 else if (n > 0) 154 return 1; 155 else 156 return 0; 157 } 158