Abolish global variable J.
authorEric S. Raymond <esr@thyrsus.com>
Fri, 9 Jun 2017 15:13:03 +0000 (11:13 -0400)
committerEric S. Raymond <esr@thyrsus.com>
Fri, 9 Jun 2017 15:13:03 +0000 (11:13 -0400)
advent.h
main.c

index 3f607c7c307e464605dd8cef77a2dfdc5e2ccfd4..e156738c2fabe4a9d324846cbdc72f0fe23019f4 100644 (file)
--- a/advent.h
+++ b/advent.h
@@ -185,5 +185,5 @@ extern long AMBER, ATTACK, AXE, BACK, BATTER, BEAR,
    STEPS, STICK, STREAM, THROW, TRIDNT, TROLL, TROLL2,
    URN, VASE, VEND, VOLCAN, WATER;
 /* everything else */
-extern long I, J, K, L, SPK, VRSION, WD1, WD1X, WD2, WD2X;
+extern long I, K, L, SPK, VRSION, WD1, WD1X, WD2, WD2X;
 
diff --git a/main.c b/main.c
index 0dbba5f9c40a7d8547d8d268d1b02e6fd320d092..a27f96965bb6caa053af83767f84e99442111a25 100644 (file)
--- a/main.c
+++ b/main.c
@@ -21,7 +21,7 @@ long AMBER, AXE, BACK, BATTER, BEAR, BIRD, BLOOD,
                BOTTLE, CAGE, CAVE, CAVITY, CHAIN, CHASM, CHEST,
                CLAM, COINS, DOOR, DPRSSN, DRAGON, DWARF, EGGS,
                EMRALD, ENTER, ENTRNC, FIND, FISSUR, FOOD,
-               GRATE, HINT, I, INVENT, J, JADE, K, KEYS,
+               GRATE, HINT, I, INVENT, JADE, K, KEYS,
                KNIFE, L, LAMP, LOCK, LOOK, MAGZIN,
                MESSAG, MIRROR, NUGGET, NUL, OGRE, OIL, OYSTER,
                PEARL, PILLOW, PLANT, PLANT2, PYRAM, RESER, ROD, ROD2,
@@ -267,9 +267,9 @@ static bool dwarfmove(void)
            return true;
        game.dflag=2;
        for (I=1; I<=2; I++) {
-           J=1+randrange(NDWARVES-1);
+           int j=1+randrange(NDWARVES-1);
            if(PCT(50))
-               game.dloc[J]=0;
+               game.dloc[j]=0;
        }
        for (I=1; I<=NDWARVES-1; I++) {
            if(game.dloc[I] == game.loc)
@@ -294,7 +294,7 @@ static bool dwarfmove(void)
        if(game.dloc[I] == 0)
            continue;
        /*  Fill TK array with all the places this dwarf might go. */
-       J=1;
+       int j=1;
        kk=KEY[game.dloc[I]];
        if(kk != 0)
            do {
@@ -303,24 +303,24 @@ static bool dwarfmove(void)
                bool avoided = (game.newloc > 300 ||
                                !INDEEP(game.newloc) ||
                                game.newloc == game.odloc[I] ||
-                               (J > 1 && game.newloc == TK[J-1]) ||
-                               J >= 20 ||
+                               (j > 1 && game.newloc == TK[j-1]) ||
+                               j >= 20 ||
                                game.newloc == game.dloc[I] ||
                                FORCED(game.newloc) ||
                                (I == PIRATE && CNDBIT(game.newloc,3)) ||
                                labs(TRAVEL[kk])/1000000 == 100);
                if (!avoided) {
-                   TK[J++] = game.newloc;
+                   TK[j++] = game.newloc;
                }
                ++kk;
            } while
                (TRAVEL[kk-1] >= 0);
-       TK[J]=game.odloc[I];
-       if(J >= 2)
-           --J;
-       J=1+randrange(J);
+       TK[j]=game.odloc[I];
+       if(j >= 2)
+           --j;
+       j=1+randrange(j);
        game.odloc[I]=game.dloc[I];
-       game.dloc[I]=TK[J];
+       game.dloc[I]=TK[j];
        game.dseen[I]=(game.dseen[I] && INDEEP(game.loc)) || (game.dloc[I] == game.loc || game.odloc[I] == game.loc);
        if(!game.dseen[I]) continue;
        game.dloc[I]=game.loc;
@@ -334,16 +334,16 @@ static bool dwarfmove(void)
            if(game.loc == game.chloc || game.prop[CHEST] >= 0)
                continue;
            K=0;
-           for (J=MINTRS; J<=MAXTRS; J++) {
+           for (int j=MINTRS; j<=MAXTRS; j++) {
                /*  Pirate won't take pyramid from plover room or dark
                *  room (too easy!). */
-               if(J == PYRAM && (game.loc == PLAC[PYRAM] || game.loc == PLAC[EMRALD]))
+               if(j == PYRAM && (game.loc == PLAC[PYRAM] || game.loc == PLAC[EMRALD]))
                    goto L6020;
-               if(TOTING(J)) {
+               if(TOTING(j)) {
                    goto L6021;
                }
            L6020:
-               if(HERE(J))
+               if(HERE(j))
                    K=1;
            }
            /* Force chest placement before player finds last treasure */
@@ -368,12 +368,12 @@ static bool dwarfmove(void)
                MOVE(MESSAG,game.chloc2);
            }
            RSPEAK(128);
-           for (J=MINTRS; J<=MAXTRS; J++) {
-               if (!(J == PYRAM && (game.loc == PLAC[PYRAM] || game.loc == PLAC[EMRALD]))) {
-                   if(AT(J) && game.fixed[J] == 0)
-                       CARRY(J,game.loc);
-                   if(TOTING(J))
-                       DROP(J,game.chloc);
+           for (int j=MINTRS; j<=MAXTRS; j++) {
+               if (!(j == PYRAM && (game.loc == PLAC[PYRAM] || game.loc == PLAC[EMRALD]))) {
+                   if(AT(j) && game.fixed[j] == 0)
+                       CARRY(j,game.loc);
+                   if(TOTING(j))
+                       DROP(j,game.chloc);
                }
            }
            game.dloc[PIRATE]=game.chloc;
@@ -434,13 +434,13 @@ static void croak(FILE *cmdin)
        game.place[OIL]=0;
        if(TOTING(LAMP))
            game.prop[LAMP]=0;
-       for (J=1; J<=NOBJECTS; J++) {
-           I=NOBJECTS + 1 - J;
-           if(TOTING(I)) {
-               K=game.oldlc2;
-               if(I == LAMP)
-                   K=1;
-               DROP(I,K);
+       for (int j=1; j<=NOBJECTS; j++) {
+           int i=NOBJECTS + 1 - j;
+           if(TOTING(i)) {
+               int k=game.oldlc2;
+               if(i == LAMP)
+                   k=1;
+               DROP(i,k);
            }
        }
        game.loc=3;
@@ -814,21 +814,20 @@ L30310: game.newloc=PLAC[TROLL]+FIXD[TROLL]-game.loc;
 
 L21:   LL=MOD((labs(TRAVEL[KK])/1000),1000);
        if(LL != K) {
-               if(LL <= 300) {
-                       J=KEY[LL];
-                       if(FORCED(LL) && MOD((labs(TRAVEL[J])/1000),1000) == K)
-                               K2=KK;
-               }
-               if(TRAVEL[KK] < 0)
-                   goto L23;
-               KK=KK+1;
-               goto L21;
-
-L23:           KK=K2;
-               if(KK == 0) {
-                       RSPEAK(140);
-                       return true;
-               }
+           if(LL <= 300) {
+               if(FORCED(LL) && MOD((labs(TRAVEL[KEY[LL]])/1000),1000) == K)
+                   K2=KK;
+           }
+           if(TRAVEL[KK] < 0)
+               goto L23;
+           KK=KK+1;
+           goto L21;
+
+       L23:            KK=K2;
+           if(KK == 0) {
+               RSPEAK(140);
+               return true;
+           }
        }
 
        K=MOD(labs(TRAVEL[KK]),1000);