From 91a10d4b997f94bdadde25b4c2dc5d5db4d1aaa8 Mon Sep 17 00:00:00 2001
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Sat, 5 Nov 2022 22:22:28 +0100
Subject: Make exit easier

---
 wake-up.scm | 60 ++++++++++++++++++++++++++++++++++--------------------------
 1 file changed, 34 insertions(+), 26 deletions(-)

diff --git a/wake-up.scm b/wake-up.scm
index 4eb38ad..5c4a276 100644
--- a/wake-up.scm
+++ b/wake-up.scm
@@ -15,31 +15,35 @@
 (define *tiredness*  (make-parameter 40 max-100))
 (define *day*        (make-parameter 1))
 
-;; Show days passed on exit
+;; Control SIGINT
 (sigaction SIGINT
            (lambda (sig)
-             (newline)
-             (display "---------------------------")
-             (newline)
-             (display "Exiting game.")
-             (newline)
-             (display (string-append "Days played: " (number->string (*day*))))
-             (newline)
-             (newline)
-             (display "This game tries to show the internal dialog of a \
-                      depressed person that is alone at home, working as a \
-                      freelance, on a phd or any job that allows to work on \
-                      an independent way.\n\
-                      Somehow, it tries to express the life of those who \
-                      suffer in silence, alone in their caves. Hopefully, \
-                      this game made you empathize with them. \n\
-                      If you feel identified by what it is shown here, it \
-                      might be time to review your internal dialog and treat \
-                      yourself better. You deserve to be loved.\n")
-             (newline)
-             (display "Thanks for playing.")
-             (newline)
-             (exit)))
+             (exit-with-message)))
+
+;; Exit message
+(define (exit-with-message)
+  (newline)
+  (display "---------------------------")
+  (newline)
+  (display "Exiting game.")
+  (newline)
+  (display (string-append "Days played: " (number->string (*day*))))
+  (newline)
+  (newline)
+  (display "This game tries to show the internal dialog of a \
+           depressed person that is alone at home, working as a \
+           freelance, on a phd or any job that allows to work on \
+           an independent way.\n\
+           Somehow, it tries to express the life of those who \
+           suffer in silence, alone in their caves. Hopefully, \
+           this game made you empathize with them. \n\
+           If you feel identified by what it is shown here, it \
+           might be time to review your internal dialog and treat \
+           yourself better. You deserve to be loved.\n")
+  (newline)
+  (display "Thanks for playing.")
+  (newline)
+  (exit))
 
 (define (nth n lst)
   (if (> n (length lst))
@@ -108,7 +112,8 @@
   (lambda ()
     (newline)
     (display message)
-    (get-line (current-input-port))))
+    (when (eof-object? (get-line (current-input-port)))
+      (exit-with-message))))
 
 (define (bar percent)
   "A simple 12 character bar for life-like variable representation"
@@ -131,7 +136,10 @@
     (newline)))
 
 (define (read-number)
-  (string->number (get-line (current-input-port))))
+  (let ((line (get-line (current-input-port))))
+    (if (eof-object? line)
+        (exit-with-message)
+        (string->number line))))
 
 ;; Basic state representation and creation: A state is a function that knows
 ;; how to jump to other states through a menu.
@@ -177,7 +185,7 @@
            (cons "Start game"
                  (combine
                    (answer "Let's start, then. Press [ENTER] to continue. \
-                           Press [Ctrl-C] and then [ENTER] to finish.")
+                           Exit with [Ctrl-D].")
                    (to-state 'wake-up)))
            (cons "Quit game"
                  (answer "Good bye!")))
-- 
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