Langton's ant: Difference between revisions

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@@ Line 6,312: / Line 6,312: @@
 var plane = size.of { size.of (White) }
-var (x, y) = @|([size/2 -> int]*2)
+var (x, y) = ([size >> 1] * 2)...
 var dir = dirs.len.irand
@@ Line 6,319: / Line 6,319: @@
     (x >= 0) && (y >= 0) && (x < size) && (y < size) || break
-    given(plane[x][y]) {
+    given (plane[x][y]) {
         when (White) { dir--; plane[x][y] = Black }
         when (Black) { dir++; plane[x][y] = White }
@@ Line 6,325: / Line 6,325: @@
     ++moves
-    [\x, \y]:dirs[dir %= dirs.len] -> each {|a,b| *a += b }
+    [[\x, \y], dirs[dir %= dirs.len]].zip {|a,b| *a += b }
 }