X-Git-Url: https://git.cameronkatri.com/bsdgames-darwin.git/blobdiff_plain/88eff08098072c4b923af3a7180b14d6dfcf66ef..a9bc398e7d2831e9f265619e36ef03fe1320dce0:/worm/worm.c

diff --git a/worm/worm.c b/worm/worm.c
index a78f27fb..a6784083 100644
--- a/worm/worm.c
+++ b/worm/worm.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: worm.c,v 1.19 2000/05/08 07:56:06 mycroft Exp $	*/
+/*	$NetBSD: worm.c,v 1.23 2001/12/06 12:24:00 blymn Exp $	*/
 
 /*
  * Copyright (c) 1980, 1993
@@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
 #if 0
 static char sccsid[] = "@(#)worm.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: worm.c,v 1.19 2000/05/08 07:56:06 mycroft Exp $");
+__RCSID("$NetBSD: worm.c,v 1.23 2001/12/06 12:24:00 blymn Exp $");
 #endif
 #endif /* not lint */
 
@@ -80,6 +80,7 @@ int running = 0;
 int slow = 0;
 int score = 0;
 int start_len = LENGTH;
+int visible_len;
 int lastch;
 char outbuf[BUFSIZ];
 
@@ -104,23 +105,32 @@ main(argc, argv)
 	/* Revoke setgid privileges */
 	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());
 	signal(SIGALRM, wake);
 	signal(SIGINT, leave);
 	signal(SIGQUIT, leave);
 	initscr();
-	crmode();
+	cbreak();
 	noecho();
 #ifdef KEY_LEFT
 	keypad(stdscr, TRUE);
 #endif
 	slow = (baudrate() <= 1200);
 	clear();
+	if (COLS < 18 || LINES < 5) {
+		/*
+		 * Insufficient room for the line with " Worm" and the
+		 * score if fewer than 18 columns; insufficient room for
+		 * anything much if fewer than 5 lines.
+		 */
+		endwin();
+		errx(1, "screen too small");
+	}
+	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, '*', '*');
@@ -152,14 +162,14 @@ void
 life()
 {
 	struct body *bp, *np;
-	int i;
+	int i, j = 1;
 
 	np = NULL;
 	head = newlink();
 	if (head == NULL)
 		err(1, NULL);
-	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) {
@@ -168,12 +178,19 @@ life()
 			err(1, NULL);
 		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;
+	visible_len = start_len + 1;
 }
 
 void
@@ -218,8 +235,15 @@ void
 newpos(bp)
 	struct body * bp;
 {
+	if (visible_len == (LINES-3) * (COLS-3) - 1) {
+		endwin();
+
+		printf("\nYou won!\n");
+		printf("Your final score was %d\n\n", score);
+		exit(0);
+	}
 	do {
-		bp->y = rnd(LINES-3)+ 2;
+		bp->y = rnd(LINES-3)+ 1;
 		bp->x = rnd(COLS-3) + 1;
 		wmove(tv, bp->y, bp->x);
 	} while(winch(tv) != ' ');
@@ -295,6 +319,7 @@ process(ch)
 		nh = tail->next;
 		free(tail);
 		tail = nh;
+		visible_len--;
 	}
 	else growing--;
 	display(head, BODY);
@@ -305,7 +330,7 @@ process(ch)
 		prize();
 		score += growing;
 		running = 0;
-		wmove(stw, 0, 68);
+		wmove(stw, 0, COLS - 12);
 		wprintw(stw, "Score: %3d", score);
 		wrefresh(stw);
 	}
@@ -320,6 +345,7 @@ process(ch)
 	nh->x = x;
 	display(nh, HEAD);
 	head = nh;
+	visible_len++;
 	if (!(slow && running))
 	{
 		wmove(tv, head->y, head->x);