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
33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)worm.c 8.1 (Berkeley) 5/31/93
35 * $FreeBSD: src/games/worm/worm.c,v 1.9 1999/12/07 02:01:27 billf Exp $
36 * $DragonFly: src/games/worm/worm.c,v 1.5 2006/09/07 21:28:27 pavalos Exp $
40 * Worm. Written by Michael Toy
51 #define newlink() (struct body *) malloc(sizeof (struct body));
56 #define CNTRL(p) (p-'A'+1)
65 } *head, *tail, goody;
70 int start_len = LENGTH;
75 void display (struct body *, char);
78 void newpos (struct body *);
87 main(int argc, char **argv)
95 start_len = atoi(argv[1]);
96 if ((start_len <= 0) || (start_len > 500))
98 setbuf(stdout, outbuf);
100 signal(SIGALRM, wake);
101 signal(SIGINT, leave);
102 signal(SIGQUIT, leave);
103 signal(SIGTSTP, suspend); /* process control signal */
107 slow = (baudrate() <= B1200);
109 stw = newwin(1, COLS-1, 0, 0);
110 tv = newwin(LINES-1, COLS-1, 1, 0);
113 scrollok(stw, FALSE);
115 wprintw(stw, " Worm");
119 life(); /* Create the worm */
120 prize(); /* Put up a goal */
131 if (read(0, &ch, 1) >= 0)
140 struct body *bp, *np;
145 head->x = start_len+2;
149 for (i = 0, bp = head; i < start_len; i++, bp = np) {
162 display(struct body *pos, char chr)
164 wmove(tv, pos->y, pos->x);
169 leave(__unused int sig)
176 wake(__unused int sig)
178 signal(SIGALRM, wake);
186 return random() % range;
190 newpos(struct body *bp)
193 bp->y = rnd(LINES-3)+ 2;
194 bp->x = rnd(COLS-3) + 1;
195 wmove(tv, bp->y, bp->x);
196 } while(winch(tv) != ' ');
206 waddch(tv, value+'0');
221 case 'h': x--; break;
222 case 'j': y++; break;
223 case 'k': y--; break;
224 case 'l': x++; break;
225 case 'H': x--; running = RUNLEN; ch = tolower(ch); break;
226 case 'J': y++; running = RUNLEN/2; ch = tolower(ch); break;
227 case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break;
228 case 'L': x++; running = RUNLEN; ch = tolower(ch); break;
229 case '\f': setup(); return;
230 case CNTRL('Z'): suspend(0); return;
231 case CNTRL('C'): crash(); return;
232 case CNTRL('D'): crash(); return;
233 default: if (! running) alarm(1);
240 tail->next->prev = NULL;
248 if (isdigit(ch = winch(tv)))
255 wprintw(stw, "Score: %3d", score);
258 else if(ch != ' ') crash();
267 if (!(slow && running))
280 printf("Well, you ran into something and the game is over.\n");
281 printf("Your final score was %d\n", score);
286 suspend(__unused int sig)
292 kill(getpid(), SIGTSTP);
293 signal(SIGTSTP, suspend);