diff options
| -rw-r--r-- | games/worm/worm.6 | 22 | ||||
| -rw-r--r-- | games/worm/worm.c | 71 |
2 files changed, 58 insertions, 35 deletions
diff --git a/games/worm/worm.6 b/games/worm/worm.6 index a4ba9bdcf9a..88ab9b0bdf8 100644 --- a/games/worm/worm.6 +++ b/games/worm/worm.6 @@ -45,23 +45,19 @@ .Sh DESCRIPTION In .Nm worm, -you are a little worm, your body is the "o"'s on the screen +you are a little worm: your body is the "o"'s on the screen and your head is the "@". You move with the hjkl keys (as in the game -snake). If you don't press any keys, you continue in the direction you +snake(6)). If you don't press any keys, you continue in the direction you last moved. The upper case HJKL keys move you as if you had pressed -several (9 for HL and 5 for JK) of the corresponding lower case key -(unless you run into a digit, then it stops). +several of the corresponding lower case key (9 for HL and 5 for JK, or +until you run into a digit, whichever comes first). .Pp -On the screen you will see a digit, if your worm eats the digit is will -grow longer, the actual amount longer depends on which digit it was -that you ate. The object of the game is to see how long you can make -the worm grow. +On the screen you will see a digit. If your worm eats the digit it will +grow longer by that number of "o"'s. The object of the game is to see how +long you can make the worm grow. .Pp -The game ends when the worm runs into either the sides of the screen, +The game ends when the worm runs into either the sides of the screen or itself. The current score (how much the worm has grown) is kept in -the upper left corner of the screen. +the upper right corner of the screen. .Pp The optional argument, if present, is the initial length of the worm. -.Sh BUGS -If the initial length of the worm is set to less than one or more -than 75, various strange things happen. diff --git a/games/worm/worm.c b/games/worm/worm.c index 23594347626..2e231516a9f 100644 --- a/games/worm/worm.c +++ b/games/worm/worm.c @@ -57,6 +57,7 @@ static char rcsid[] = "$NetBSD: worm.c,v 1.7 1995/04/29 01:12:41 mycroft Exp $"; #include <signal.h> #include <stdlib.h> #include <termios.h> +#include <unistd.h> #define newlink() (struct body *) malloc(sizeof (struct body)); #define HEAD '@' @@ -81,8 +82,19 @@ int start_len = LENGTH; char lastch; char outbuf[BUFSIZ]; -void leave(), wake(), suspend(); +void crash __P((void)); +void display __P((struct body *, char)); +void leave __P((int)); +void life __P((void)); +void newpos __P((struct body *)); +void process __P((char)); +void prize __P((void)); +int rnd __P((int)); +void setup __P((void)); +void suspend __P((int)); +void wake __P((int)); +int main(argc, argv) int argc; char **argv; @@ -93,12 +105,8 @@ main(argc, argv) setegid(getgid()); setgid(getgid()); - if (argc == 2) - start_len = atoi(argv[1]); - if ((start_len <= 0) || (start_len > 500)) - start_len = LENGTH; setbuf(stdout, outbuf); - srand(getpid()); + srandom(getpid()); signal(SIGALRM, wake); signal(SIGINT, leave); signal(SIGQUIT, leave); @@ -108,6 +116,10 @@ main(argc, argv) noecho(); slow = (baudrate() <= 1200); clear(); + if (argc == 2) + start_len = atoi(argv[1]); + if ((start_len <= 0) || (start_len > ((LINES-3) * (COLS-2)) / 3)) + start_len = LENGTH; stw = newwin(1, COLS-1, 0, 0); tv = newwin(LINES-1, COLS-1, 1, 0); box(tv, '*', '*'); @@ -136,28 +148,36 @@ main(argc, argv) } } +void life() { register struct body *bp, *np; - register int i; + register int i,j = 1; head = newlink(); - head->x = start_len+2; - head->y = 12; + head->x = start_len % (COLS-5) + 2; + head->y = LINES / 2; head->next = NULL; display(head, HEAD); for (i = 0, bp = head; i < start_len; i++, bp = np) { np = newlink(); np->next = bp; bp->prev = np; - np->x = bp->x - 1; - np->y = bp->y; + if (((bp->x <= 2) && (j == 1)) || ((bp->x >= COLS-4)) && (j == -1)) { + j *= -1; + np->x = bp->x; + np->y = bp->y + 1; + } else { + np->x = bp->x - j; + np->y = bp->y; + } display(np, BODY); } tail = np; tail->prev = NULL; } +void display(pos, chr) struct body *pos; char chr; @@ -167,25 +187,30 @@ char chr; } void -leave() +leave(dummy) +int dummy; { endwin(); exit(0); } void -wake() +wake(dummy) +int dummy; { signal(SIGALRM, wake); fflush(stdout); process(lastch); } +int rnd(range) +int range; { - return abs((rand()>>5)+(rand()>>5)) % range; + return random() % range; } +void newpos(bp) struct body * bp; { @@ -196,6 +221,7 @@ struct body * bp; } while(winch(tv) != ' '); } +void prize() { int value; @@ -206,6 +232,7 @@ prize() wrefresh(tv); } +void process(ch) char ch; { @@ -226,7 +253,7 @@ char ch; case 'K': y--; running = RUNLEN/2; ch = tolower(ch); break; case 'L': x++; running = RUNLEN; ch = tolower(ch); break; case '\f': setup(); return; - case CNTRL('Z'): suspend(); return; + case CNTRL('Z'): suspend(0); return; case CNTRL('C'): crash(); return; case CNTRL('D'): crash(); return; default: if (! running) alarm(1); @@ -250,7 +277,7 @@ char ch; prize(); score += growing; running = 0; - wmove(stw, 0, 68); + wmove(stw, 0, COLS - 12); wprintw(stw, "Score: %3d", score); wrefresh(stw); } @@ -269,22 +296,21 @@ char ch; alarm(1); } +void crash() { sleep(2); clear(); - move(23, 0); - refresh(); + endwin(); printf("Well, you ran into something and the game is over.\n"); printf("Your final score was %d\n", score); - leave(); + exit(0); /* leave() calls endwin(), which would hose the printf()'s */ } void -suspend() +suspend(dummy) +int dummy; { - char *sh; - move(LINES-1, 0); refresh(); endwin(); @@ -296,6 +322,7 @@ suspend() setup(); } +void setup() { clear(); |