diff --git a/julia/ImmutableOrientedShape.jl b/julia/ImmutableOrientedShape.jl
index dbd6316..089b7bb 100644
--- a/julia/ImmutableOrientedShape.jl
+++ b/julia/ImmutableOrientedShape.jl
@@ -1,20 +1,11 @@
+include("Shape.jl")
+using XXhash
 
 struct ImmutableOrientedShape
     cubes::Vector{Tuple{Int8, Int8, Int8}}
     hash::UInt
 end
 
-Base.hash(S::ImmutableOrientedShape) = S.hash
-Base.hash(S::ImmutableOrientedShape, h::UInt) = S.hash ⊻ h
-
-function Base.==(X::ImmutableOrientedShape, Y::ImmutableOrientedShape)
-    if hash != hash
-        return false
-    elseif X.cubes == Y.cubes
-        return false
-    else
-        return true
-    end
+function getImmutableOrientedShape(S::Shape)
+    shape = ImmutableOrientedShape(S.orderedLists[1], xxh3_64(S.orderedLists[1]))
 end
-
-Base.isequal(X:ImmutableOrientedShape, Y::ImmutableOrientedShape) = X == Y