From 14486d67d447afc40a3c57362a9e37324992452f Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Thu, 15 Jun 2017 12:18:37 -0400
Subject: [PATCH] Magic-numnber elimination.

---
 actions.c |  6 +++---
 advent.h  |  4 +++-
 main.c    | 11 +++++------
 score.c   |  9 +++++----
 4 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/actions.c b/actions.c
index 6cd73b5..e88773e 100644
--- a/actions.c
+++ b/actions.c
@@ -183,7 +183,7 @@ static int blast(void)
     if (HERE(ROD2))
 	game.bonus=135;
     RSPEAK(game.bonus);
-    score(0);
+    score(endgame);
     return GO_CLEAROBJ;	/* pacify compiler - we never get here */
 }
 
@@ -777,7 +777,7 @@ static int quit(FILE *input)
 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
 {
     if (YES(input,REALLY_QUIT,OK_MAN,OK_MAN))
-	score(1);
+	score(quitgame);
     return GO_CLEAROBJ;
 }
 
@@ -949,7 +949,7 @@ static int throw(FILE *cmdin, long verb, token_t obj)
 static int vscore(void)
 /* Score.  Call scoring routine but tell it to return. */
 {
-    score(-1);
+    score(scoregame);
     return GO_CLEAROBJ;
 }
 
diff --git a/advent.h b/advent.h
index 327c717..6ddbbbe 100644
--- a/advent.h
+++ b/advent.h
@@ -108,10 +108,12 @@ extern bool MAPLIN(FILE *);
 extern void TYPE(void);
 extern void DATIME(long*, long*);
 
+enum termination {endgame, quitgame, scoregame};
+
 extern void set_seed(long);
 extern unsigned long get_next_lcg_value(void);
 extern long randrange(long);
-extern void score(long);
+extern void score(enum termination);
 extern int saveresume(FILE *, bool);
 
 /*
diff --git a/main.c b/main.c
index 1c1b299..3d4962a 100644
--- a/main.c
+++ b/main.c
@@ -49,7 +49,6 @@ bool editline = true;
 bool prompt = true;
 
 extern void initialise();
-extern void score(long);
 extern int action(FILE *, long, long, long);
 
 void sig_handler(int signo)
@@ -141,7 +140,7 @@ int main(int argc, char *argv[])
 	    break;
     }
     /* show score and exit */
-    score(1);
+    score(quitgame);
 }
 
 static bool fallback_handler(char *buf)
@@ -475,13 +474,13 @@ static void croak(FILE *cmdin)
 	/*  He died during closing time.  No resurrection.  Tally up a
 	 *  death and exit. */
 	RSPEAK(DEATH_CLOSING);
-	score(0);
+	score(endgame);
     } else {
 	/* FIXME: Arithmetic on message numbers */
 	if (!YES(cmdin,WATCH_IT+game.numdie*2,WHICH_WAY+game.numdie*2,OK_MAN))
-	    score(0);
+	    score(endgame);
 	if (game.numdie == MAXDIE)
-	    score(0);
+	    score(endgame);
 	game.place[WATER]=0;
 	game.place[OIL]=0;
 	if (TOTING(LAMP))
@@ -1107,7 +1106,7 @@ static bool do_command(FILE *cmdin)
 	case GO_DWARFWAKE:
 	    /*  Oh dear, he's disturbed the dwarves. */
 	    RSPEAK(DWARVES_AWAKEN);
-	    score(0);
+	    score(endgame);
 	    return true;
 	default:
 	    BUG(99);
diff --git a/score.c b/score.c
index d49eff8..734ea19 100644
--- a/score.c
+++ b/score.c
@@ -7,8 +7,8 @@
  * scoring and wrap-up
  */
 
-void score(long mode)
-/* mode is <0 if scoring, >0 if quitting, =0 if died or won */
+void score(enum termination mode)
+/* mode is 'report' if scoring, 'quit' if quitting, 'end' if died or won */
 {
     long score = 0, mxscor = 0;
 
@@ -54,7 +54,8 @@ void score(long mode)
      *  mundane exits or 133, 134, 135 if he blew it (so to speak). */
     score += (MAXDIE-game.numdie)*10;
     mxscor += MAXDIE*10;
-    if(mode == 0)score += 4;
+    if(mode == endgame)
+	score += 4;
     mxscor += 4;
     if(game.dflag != 0)score += 25;
     mxscor += 25;
@@ -93,7 +94,7 @@ void score(long mode)
     score=score-game.trnluz-game.saved;
 
     /* Return to score command if that's where we came from. */
-    if(mode < 0) {
+    if(mode == scoregame) {
 	SETPRM(1,score,mxscor);
 	SETPRM(3,game.turns,game.turns);
 	RSPEAK(GARNERED_POINTS);
-- 
2.31.1