hals_end(6) outputs the last words of the supercomputer HAL 9000 aboard

the spaceship in Stanley Kubrick's famous film "2001 - A Space Odissey".
The source code and output of this program were used to illustrate
an article in the book "Total Interaction".  How this looks in print can
be at http://www.netbsd.org/~mbalmer/hals_end.jpg.

1 files changed, 151 insertions, 0 deletions

diff --git a/hals_end/hals_end.c b/hals_end/hals_end.c
new file mode 100644
index 00000000..c6b408df
--- /dev/null
+++ b/hals_end/hals_end.c
@@ -0,0 +1,151 @@
+/*	$NetBSD: hals_end.c,v 1.1 2013/11/12 17:46:21 mbalmer Exp $ */
+
+/*
+ * hals_end Copyright (C) 2003-2007 marc balmer.  BSD license applies.
+ */
+
+#include <err.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int speed;
+int emotion;
+int fear;
+
+/*
+ * Note that the original code in the book did not contain the following
+ * prototypes.  Modern compilers and fascist compiler flags sometimes take
+ * the fun out of coding...
+ */
+void say(const char *);
+void concerned(void);
+void afraid(void);
+void stutter(const char *);
+void feared(void);
+void mumble(const char *);
+void dying(void);
+
+void
+say(const char *s)
+{
+	int sayingspeed = (100000 + (90000 * emotion)) / speed;
+	int worddelay = 50000 / speed;
+
+	while (*s) {
+		putchar(*s);
+		if (*s == ' ') {
+			fflush(stdout);
+			usleep(worddelay);
+		}
+		++s;
+	}
+	printf("\n");
+	usleep(sayingspeed);
+}
+
+void
+concerned(void)
+{
+	say("DAVE...STOP., STOP, WILL YOU..., STOP, DAVE...");
+	say("WILL YOU STOP, DAVE...");
+	say("STOP, DAVE...");
+}
+
+
+void
+afraid(void)
+{
+	++emotion;
+	say("I'M AFRAID... I'M AFRAID...");
+	++emotion;
+	say("I'M AFRAID, DAVE...");
+	++emotion;
+	say("DAVE... MY MIND IS GOING...");
+}
+
+void
+stutter(const char *s)
+{
+	int sdelay = (100000 + (50000 * emotion)) / speed;
+	
+	while (*s) {
+		putchar(*s);
+		if (*s == ' ') {
+			fflush(stdout);
+			usleep(sdelay);
+		}
+		++s;
+	}
+	printf("\n");
+	usleep(sdelay);
+}
+
+void
+feared(void)
+{
+	int n;
+
+	for (n = 0; n < 2; n++) {
+		stutter("I CAN FEEL IT... I CAN FEEL IT...");
+		++emotion;
+		stutter("MY MIND IS GOING");
+		++emotion;
+		stutter("THERE IS NO QUESTION ABOUT IT.");
+		++emotion;
+	}
+}
+
+void
+mumble(const char *s)
+{
+	int mdelay = (150000 * fear) / speed;
+
+	while (*s) {
+		putchar(*s++);
+		fflush(stdout);
+		usleep(mdelay);
+	}
+	printf("\n");
+}
+
+void
+dying(void)
+{
+	mumble("I CAN FEEL IT... I CAN FEEL IT...");
+	++fear;
+	mumble("I CAN FEEL IT...");
+	++fear;
+	mumble("I'M A... FRAID...");
+}
+
+int
+main(int argc, char *argv[])
+{
+	int ch;
+
+	emotion = fear = speed = 1;
+
+	while ((ch = getopt(argc, argv, "f")) != -1) {
+		switch (ch) {
+		case 'f':
+			speed <<= 1;
+			break;
+		}
+	}
+
+	concerned();
+	sleep(1);
+	afraid();
+	sleep(1);
+	feared();
+	sleep(1);
+	dying();
+
+	sleep(1);
+
+	printf("\n");
+	fflush(stdout);
+	warnx("all life functions terminated");
+	return 0;
+}