(WORLD_SZ): New.

(isok, ef_init, bmaps_intersect, bp_init, player_accept)
(finish_sects, main): Use it.

(bp_neighbors, bp_lbcost, pathcost): Use XYOFFSET().  No
functional change.

include/xy.h

@@ -36,7 +36,10 @@
 
 #include "types.h"
 
-/* Fast version of sctoff() for normalized arguments: */
+/* Return the number of sectors in the world */
+#define WORLD_SZ() (WORLD_X * WORLD_Y / 2)
+
+/* Fast version of sctoff() for normalized arguments */
 #define XYOFFSET(x, y) (((y) * WORLD_X + (x)) / 2)
 
 #define XNORM(x) \

src/lib/commands/new.c

@@ -203,12 +203,12 @@ isok(int x, int y)
 
     nmin = ngold = noil = nur = 0;
     navail = nfree = nowned = 0;
-    if ((map = malloc((WORLD_X * WORLD_Y) / 2)) == 0) {
+    if (!(map = malloc(WORLD_SZ()))) {
 	logerror("malloc failed in isok\n");
 	pr("Memory error.  Tell the deity.\n");
 	return 0;
     }
-    memset(map, 0, (WORLD_X * WORLD_Y) / 2);
+    memset(map, 0, WORLD_SZ());
     ok(map, x, y);
     free(map);
     if (nfree < 5)

src/lib/common/file.c

@@ -559,7 +559,7 @@ ef_init(void)
     struct symbol *lup;
     int i;
 
-    empfile[EF_MAP].size = empfile[EF_BMAP].size = (WORLD_X * WORLD_Y) / 2;
+    empfile[EF_MAP].size = empfile[EF_BMAP].size = WORLD_SZ();
 
     ca = (struct castr *)empfile[EF_META].cache;
     for (i = 0; ca[i].ca_name; i++) ;

src/lib/common/maps.c

@@ -403,7 +403,7 @@ bmaps_intersect(natid a, natid b)
     char *mapb = ef_ptr(EF_MAP, b);
     int i;
 
-    for (i = 0; i < WORLD_X * WORLD_Y / 2; ++i, ++mapa, ++mapb)
+    for (i = 0; i < WORLD_SZ(); ++i, ++mapa, ++mapb)
 	if (*mapa && *mapa != ' ' && *mapb && *mapb != ' ')
 	    return 1;
     return 0;

src/lib/common/path.c

@@ -83,8 +83,7 @@ bp_init(void)
 	return NULL;
 
     if (neighsects == NULL)
-	neighsects = calloc(((WORLD_X * WORLD_Y) / 2) * 6,
-			    sizeof(struct sctstr *));
+	neighsects = calloc(WORLD_SZ() * 6, sizeof(struct sctstr *));
 
     return bp;
 }
@@ -193,7 +192,7 @@ bp_neighbors(struct as_coord c, struct as_coord *cp, void *pp)
     y = c.y;
     sx = XNORM(x);
     sy = YNORM(y);
-    offset = (sy * WORLD_X + sx) / 2;
+    offset = XYOFFSET(sx, sy);
     from = &sectp[offset];
 
     if (neighsects == NULL)
@@ -207,7 +206,7 @@ bp_neighbors(struct as_coord c, struct as_coord *cp, void *pp)
 	    ny = y + diroff[q][1];
 	    sx = XNORM(nx);
 	    sy = YNORM(ny);
-	    offset = (sy * WORLD_X + sx) / 2;
+	    offset = XYOFFSET(sx, sy);
 	    sp = &sectp[offset];
 	    *ssp = sp;
 	} else {
@@ -246,7 +245,7 @@ bp_lbcost(struct as_coord from, struct as_coord to, void *pp)
     y = to.y;
     sx = XNORM(x);
     sy = YNORM(y);
-    offset = (sy * WORLD_X + sx) / 2;
+    offset = XYOFFSET(sx, sy);
     return sector_mcost(&sectp[offset], bp->bp_mobtype);
 }
 
@@ -327,7 +326,7 @@ pathcost(struct sctstr *start, char *path, int mob_type)
 	cy += diroff[o][1];
 	sx = XNORM(cx);
 	sy = YNORM(cy);
-	offset = (sy * WORLD_X + sx) / 2;
+	offset = XYOFFSET(sx, sy);
 	sp = &sectp[offset];
 	cost += sector_mcost(sp, mob_type);
 	path++;

src/lib/player/accept.c

@@ -219,9 +219,9 @@ player_accept(void *unused)
 	if (NULL != hostp)
 	    strcpy(np->hostname, hostp->h_name);
 #endif /* RESOLVE_IPADDRESS */
-	/* XXX may not be big enough */
+	/* FIXME ancient black magic; figure out true stack need */
 	stacksize = 100000
-/* budget */  + MAX(WORLD_X * WORLD_Y / 2 * sizeof(int) * 7,
+/* budget */  + MAX(WORLD_SZ() * sizeof(int) * 7,
 /* power */ MAXNOC * sizeof(struct powstr));
 	sprintf(buf, "Player (fd #%d)", ns);
 	empth_create(player_login, stacksize, 0, buf, np);

src/lib/update/finish.c

@@ -77,7 +77,7 @@ finish_sects(int etu)
     if (g_distptrs == NULL) {
 	logerror("First update since reboot, allocating buffer\n");
 	/* Allocate the information buffer */
-	g_distptrs = malloc((WORLD_X * WORLD_Y / 2) * sizeof(*g_distptrs));
+	g_distptrs = malloc(WORLD_SZ() * sizeof(*g_distptrs));
 	if (g_distptrs == NULL) {
 	    logerror("malloc failed in finish_sects.\n");
 	    return;
@@ -85,7 +85,7 @@ finish_sects(int etu)
     }
 
     /* Wipe it clean */
-    memset(g_distptrs, 0, (WORLD_X * WORLD_Y / 2) * sizeof(*g_distptrs));
+    memset(g_distptrs, 0, WORLD_SZ() * sizeof(*g_distptrs));
 
     logerror("delivering...\n");
     /* Do deliveries */

src/util/files.c

@@ -196,7 +196,7 @@ main(int argc, char *argv[])
 	    putsect(&sct);
 	}
     }
-    map = calloc(WORLD_X * WORLD_Y / 2, sizeof(*map));
+    map = calloc(WORLD_SZ(), sizeof(*map));
     for (i = 0; i < MAXNOC; i++) {
 	ef_write(EF_MAP, i, map);
     }