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/*  STATEMENT FUNCTIONS

 *

 *  AT(OBJ)     = TRUE IF ON EITHER SIDE OF TWO-PLACED OBJECT

 *  CNDBIT(L,N) = TRUE IF COND(L) HAS BIT N SET (BIT 0 IS UNITS BIT)

 *  DARK(DUMMY) = TRUE IF LOCATION "LOC" IS DARK

 *  FORCED(LOC) = TRUE IF LOC MOVES WITHOUT ASKING FOR INPUT (COND=2)

 *  FOREST(LOC)  = TRUE IF LOC IS PART OF THE FOREST

 *  GSTONE(OBJ)  = TRUE IF OBJ IS A GEMSTONE

 *  HERE(OBJ)   = TRUE IF THE OBJ IS AT "LOC" (OR IS BEING CARRIED)

 *  LIQ(DUMMY)  = OBJECT NUMBER OF LIQUID IN BOTTLE

 *  LIQLOC(LOC) = OBJECT NUMBER OF LIQUID (IF ANY) AT LOC

 *  PCT(N)       = TRUE N% OF THE TIME (N INTEGER FROM 0 TO 100)

 *  TOTING(OBJ) = TRUE IF THE OBJ IS BEING CARRIED */

#define TOTING(OBJ)     (PLACE[OBJ] == -1)

#define AT(OBJ) (PLACE[OBJ] == LOC || FIXED[OBJ] == LOC)

#define HERE(OBJ)       (AT(OBJ) || TOTING(OBJ))

#define LIQ2(PBOTL)     ((1-(PBOTL))*WATER+((PBOTL)/2)*(WATER+OIL))

#define LIQ(DUMMY)      (LIQ2(PROP[BOTTLE]<0 ? -1-PROP[BOTTLE] : PROP[BOTTLE]))

#define LIQLOC(LOC)     (LIQ2((MOD(COND[LOC]/2*2,8)-5)*MOD(COND[LOC]/4,2)+1))

#define CNDBIT(L,N)     (TSTBIT(COND[L],N))

#define FORCED(LOC)     (COND[LOC] == 2)

#define DARK(DUMMY)     ((!CNDBIT(LOC,0)) && (PROP[LAMP] == 0 || !HERE(LAMP)))

#define PCT(N)  (RAN(100) < (N))

#define GSTONE(OBJ)     ((OBJ) == EMRALD || (OBJ) == RUBY || (OBJ) == AMBER || (OBJ) == SAPPH)

#define FOREST(LOC)     ((LOC) >= 145 && (LOC) <= 166)

#define VOCWRD(LETTRS,SECT)     (VOCAB(MAKEWD(LETTRS),SECT))

/*  THE FOLLOWING TWO FUNCTIONS WERE ADDED TO FIX A BUG (CLOCK1 DECREMENTED

 *  WHILE IN FOREST).  THEY SHOULD PROBABLY BE REPLACED BY USING ANOTHER

 *  "COND" BIT.  FOR NOW, HOWEVER, A QUICK FIX...  OUTSID(LOC) IS TRUE IF

 *  LOC IS OUTSIDE, INDEEP(LOC) IS TRUE IF LOC IS "DEEP" IN THE CAVE (HALL

 *  OF MISTS OR DEEPER).  NOTE SPECIAL KLUDGES FOR "FOOF" LOCS. */

#define OUTSID(LOC)     ((LOC) <= 8 || FOREST(LOC) || (LOC) == PLAC[SAPPH] || (LOC) == 180 || (LOC) == 182)

#define INDEEP(LOC)     ((LOC) >= 15 && !OUTSID(LOC) && (LOC) != 179)