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 1.3 2003/11/12 14:53:54 eirikn Exp $
40 * Worm. Written by Michael Toy
51 #define newlink() (struct body *) malloc(sizeof (struct body));
56 #define CNTRL(p) (p-'A'+1)
59 # define baudrate() _tty.sg_ospeed
70 } *head, *tail, goody;
75 int start_len = LENGTH;
80 void display (struct body *, char);
83 void newpos (struct body *);
102 start_len = atoi(argv[1]);
103 if ((start_len <= 0) || (start_len > 500))
105 setbuf(stdout, outbuf);
107 signal(SIGALRM, wake);
108 signal(SIGINT, leave);
109 signal(SIGQUIT, leave);
110 signal(SIGTSTP, suspend); /* process control signal */
114 slow = (baudrate() <= B1200);
116 stw = newwin(1, COLS-1, 0, 0);
117 tv = newwin(LINES-1, COLS-1, 1, 0);
120 scrollok(stw, FALSE);
122 wprintw(stw, " Worm");
126 life(); /* Create the worm */
127 prize(); /* Put up a goal */
138 if (read(0, &ch, 1) >= 0)
147 struct body *bp, *np;
152 head->x = start_len+2;
156 for (i = 0, bp = head; i < start_len; i++, bp = np) {
173 wmove(tv, pos->y, pos->x);
189 signal(SIGALRM, wake);
197 return random() % range;
205 bp->y = rnd(LINES-3)+ 2;
206 bp->x = rnd(COLS-3) + 1;
207 wmove(tv, bp->y, bp->x);
208 } while(winch(tv) != ' ');
218 waddch(tv, value+'0');
234 case 'h': x--; break;
235 case 'j': y++; break;
236 case 'k': y--; break;
237 case 'l': x++; break;
238 case 'H': x--; running = RUNLEN; ch = tolower(ch); break;
239 case 'J': y++; running = RUNLEN/2; ch = tolower(ch); break;
240 case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break;
241 case 'L': x++; running = RUNLEN; ch = tolower(ch); break;
242 case '\f': setup(); return;
243 case CNTRL('Z'): suspend(0); return;
244 case CNTRL('C'): crash(); return;
245 case CNTRL('D'): crash(); return;
246 default: if (! running) alarm(1);
253 tail->next->prev = NULL;
261 if (isdigit(ch = winch(tv)))
268 wprintw(stw, "Score: %3d", score);
271 else if(ch != ' ') crash();
280 if (!(slow && running))
293 printf("Well, you ran into something and the game is over.\n");
294 printf("Your final score was %d\n", score);
306 kill(getpid(), SIGTSTP);
307 signal(SIGTSTP, suspend);