Use enums for object number mnemonics instead of VOCWRD() calls.

main.c

@@ -43,17 +43,19 @@ struct game_t game;
 long LNLENG, LNPOSN;
 char rawbuf[LINESIZE], INLINE[LINESIZE + 1];
 
-long AMBER, AXE, BACK, BATTERY, BEAR, BIRD, BLOOD,
-     BOTTLE, CAGE, CAVE, CAVITY, CHAIN, CHASM, CHEST,
-     CLAM, COINS, DOOR, DPRSSN, DRAGON, DWARF, EGGS,
-     EMERALD, ENTER, ENTRNC, FIND, FISSURE, FOOD,
-     GRATE, HINT, INVENT, JADE, KEYS,
-     KNIFE, LAMP, LOCK, LOOK, MAGAZINE,
-     MESSAG, MIRROR, NUGGET, NUL, OGRE, OIL, OYSTER,
-     PEARL, PILLOW, PLANT, PLANT2, PYRAMID, RESER, ROD, ROD2,
-     RUBY, RUG, SAPPH, SAY, SIGN, SNAKE,
-     STEPS, STREAM, THROW, TRIDENT, TROLL, TROLL2,
-     URN, VASE, VEND, VOLCANO, WATER;
+long NUL;
+long BACK;
+long LOOK;
+long CAVE;
+long FIND;
+long INVENT;
+long SAY;
+long ENTER;
+long STREAM;
+long DPRSSN;
+long ENTRNC;
+long LOCK;
+long THROW;
 
 FILE  *logfp = NULL, *rfp = NULL;
 bool oldstyle = false;