2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)worm.c 8.1 (Berkeley) 5/31/93";
44 static const char rcsid[] =
45 "$FreeBSD: src/games/worm/worm.c,v 1.9 1999/12/07 02:01:27 billf Exp $";
49 * Worm. Written by Michael Toy
60 #define newlink() (struct body *) malloc(sizeof (struct body));
65 #define CNTRL(p) (p-'A'+1)
68 # define baudrate() _tty.sg_ospeed
79 } *head, *tail, goody;
84 int start_len = LENGTH;
88 void crash __P((void));
89 void display __P((struct body *, char));
90 void leave __P((int));
91 void life __P((void));
92 void newpos __P((struct body *));
93 void prize __P((void));
94 void process __P((char));
96 void setup __P((void));
97 void suspend __P((int));
111 start_len = atoi(argv[1]);
112 if ((start_len <= 0) || (start_len > 500))
114 setbuf(stdout, outbuf);
116 signal(SIGALRM, wake);
117 signal(SIGINT, leave);
118 signal(SIGQUIT, leave);
119 signal(SIGTSTP, suspend); /* process control signal */
123 slow = (baudrate() <= B1200);
125 stw = newwin(1, COLS-1, 0, 0);
126 tv = newwin(LINES-1, COLS-1, 1, 0);
129 scrollok(stw, FALSE);
131 wprintw(stw, " Worm");
135 life(); /* Create the worm */
136 prize(); /* Put up a goal */
147 if (read(0, &ch, 1) >= 0)
156 struct body *bp, *np;
161 head->x = start_len+2;
165 for (i = 0, bp = head; i < start_len; i++, bp = np) {
182 wmove(tv, pos->y, pos->x);
198 signal(SIGALRM, wake);
206 return random() % range;
214 bp->y = rnd(LINES-3)+ 2;
215 bp->x = rnd(COLS-3) + 1;
216 wmove(tv, bp->y, bp->x);
217 } while(winch(tv) != ' ');
227 waddch(tv, value+'0');
243 case 'h': x--; break;
244 case 'j': y++; break;
245 case 'k': y--; break;
246 case 'l': x++; break;
247 case 'H': x--; running = RUNLEN; ch = tolower(ch); break;
248 case 'J': y++; running = RUNLEN/2; ch = tolower(ch); break;
249 case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break;
250 case 'L': x++; running = RUNLEN; ch = tolower(ch); break;
251 case '\f': setup(); return;
252 case CNTRL('Z'): suspend(0); return;
253 case CNTRL('C'): crash(); return;
254 case CNTRL('D'): crash(); return;
255 default: if (! running) alarm(1);
262 tail->next->prev = NULL;
270 if (isdigit(ch = winch(tv)))
277 wprintw(stw, "Score: %3d", score);
280 else if(ch != ' ') crash();
289 if (!(slow && running))
302 printf("Well, you ran into something and the game is over.\n");
303 printf("Your final score was %d\n", score);
315 kill(getpid(), SIGTSTP);
316 signal(SIGTSTP, suspend);