shithub: puzzles

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Fix `visible' calculation (again).

[originally from svn r4223]

--- a/rect.c

+++ b/rect.c

@@ -1306,12 +1306,12 @@

 	    if (HRANGE(state,x,y))

                 c |= index(state,hedge,x,y);

-	    if (HRANGE(state,x+1,y))

-		c |= index(state,hedge,x+1,y) << 2;

+	    if (HRANGE(state,x,y+1))

+		c |= index(state,hedge,x,y+1) << 2;

 	    if (VRANGE(state,x,y))

 		c |= index(state,vedge,x,y) << 4;

-	    if (VRANGE(state,x,y+1))

-		c |= index(state,vedge,x,y+1) << 6;

+	    if (VRANGE(state,x+1,y))

+		c |= index(state,vedge,x+1,y) << 6;

 	    c |= index(state,corners,x,y) << 8;

 	    if (x+1 < state->w)

 		c |= index(state,corners,x+1,y) << 10;