From ab79fc78144cd1433c6e8276ab133067be28083e Mon Sep 17 00:00:00 2001
From: NHOrus <jy6x2b32pie9@yahoo.com>
Date: Sat, 1 Jul 2017 18:12:25 +0300
Subject: [PATCH] Do not compare state to magic numbers

---
 actions.c      | 14 +++++++-------
 adventure.yaml |  6 +++---
 main.c         | 14 ++++++++------
 3 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/actions.c b/actions.c
index dd68f8e..43a570e 100644
--- a/actions.c
+++ b/actions.c
@@ -170,8 +170,8 @@ static int bigwords(token_t foo)
         } else {
             /*  Bring back troll if we steal the eggs back from him before
              *  crossing. */
-            if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == 0)
-                game.prop[TROLL] = 1;
+            if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
+                game.prop[TROLL] = TROLL_PAIDONCE;
             k = 2;
             if (HERE(EGGS))
                 k = 1;
@@ -354,21 +354,21 @@ static int chain(token_t verb)
         spk = CHAIN_UNLOCKED;
         if (game.prop[BEAR] == UNTAMED_BEAR)
             spk = BEAR_BLOCKS;
-        if (game.prop[CHAIN] == 0)
+        if (game.prop[CHAIN] == CHAIN_HEAP)
             spk = ALREADY_UNLOCKED;
         if (spk != CHAIN_UNLOCKED) {
             rspeak(spk);
             return GO_CLEAROBJ;
         }
-        game.prop[CHAIN] = 0;
-        game.fixed[CHAIN] = 0;
+        game.prop[CHAIN] = CHAIN_HEAP;
+        game.fixed[CHAIN] = CHAIN_HEAP;
         if (game.prop[BEAR] != BEAR_DEAD)
             game.prop[BEAR] = CONTENTED_BEAR;
         /* FIXME: Arithmetic on state numbers */
         game.fixed[BEAR] = 2 - game.prop[BEAR];
     } else {
         spk = CHAIN_LOCKED;
-        if (game.prop[CHAIN] != 0)
+        if (game.prop[CHAIN] != CHAIN_HEAP)
             spk = ALREADY_LOCKED;
         if (game.loc != objects[CHAIN].plac)
             spk = NO_LOCKSITE;
@@ -376,7 +376,7 @@ static int chain(token_t verb)
             rspeak(spk);
             return GO_CLEAROBJ;
         }
-        game.prop[CHAIN] = 2;
+        game.prop[CHAIN] = CHAIN_FIXED;
         if (TOTING(CHAIN))
             drop(CHAIN, game.loc);
         game.fixed[CHAIN] = -1;
diff --git a/adventure.yaml b/adventure.yaml
index 943b78f..8998d15 100644
--- a/adventure.yaml
+++ b/adventure.yaml
@@ -3724,9 +3724,9 @@ objects: !!omap
     immovable: true
     treasure: true
     descriptions:
-    - 'There is a golden chain lying in a heap on the floor!'
-    - 'The bear is locked to the wall with a golden chain!'
-    - 'There is a golden chain locked to the wall!'
+    - [CHAIN_HEAP, 'There is a golden chain lying in a heap on the floor!']
+    - [CHAINING_BEAR, 'The bear is locked to the wall with a golden chain!']
+    - [CHAIN_FIXED, 'There is a golden chain locked to the wall!']
 - RUBY:
     words: ['ruby']
     inventory: 'Giant ruby'
diff --git a/main.c b/main.c
index df6f9aa..0a5ce3d 100644
--- a/main.c
+++ b/main.c
@@ -770,8 +770,8 @@ static bool closecheck(void)
         juggle(CHASM);
         if (game.prop[BEAR] != BEAR_DEAD)
             DESTROY(BEAR);
-        game.prop[CHAIN] = 0;
-        game.fixed[CHAIN] = 0;
+        game.prop[CHAIN] = CHAIN_HEAP;
+        game.fixed[CHAIN] = CHAIN_HEAP;
         game.prop[AXE] = 0;
         game.fixed[AXE] = 0;
         rspeak(CAVE_CLOSING);
@@ -873,8 +873,8 @@ static void listobjects(void)
 /*  Print out descriptions of objects at this location.  If
  *  not closing and property value is negative, tally off
  *  another treasure.  Rug is special case; once seen, its
- *  game.prop is 1 (dragon on it) till dragon is killed.
- *  Similarly for chain; game.prop is initially 1 (locked to
+ *  game.prop is RUG_DRAGON (dragon on it) till dragon is killed.
+ *  Similarly for chain; game.prop is initially CHAINING_BEAR (locked to
  *  bear).  These hacks are because game.prop=0 is needed to
  *  get full score. */
 {
@@ -890,8 +890,10 @@ static void listobjects(void)
                 if (game.closed)
                     continue;
                 game.prop[obj] = 0;
-                if (obj == RUG || obj == CHAIN)
-                    game.prop[obj] = 1;
+                if (obj == RUG)
+                    game.prop[RUG] = RUG_DRAGON;
+                if (obj == CHAIN)
+                    game.prop[CHAIN] = CHAINING_BEAR;
                 --game.tally;
                 /*  Note: There used to be a test here to see whether the
                  *  player had blown it so badly that he could never ever see
-- 
2.31.1