Please enable CartesianIndices for VectorOfArray

[bionicles]

To escape "AI Shape Hell" and map across shapes like a cthulu-esque ameboid monstrosity, I hacked a way to use CartesianIndices with VectorOfArray. Here's the code. It's pretty lame since I've only been doing julia for less than a week but perhaps could be useful for this module

Test Case:

v = VectorOfArray([rand(20), rand(10,10), rand(3,3,3)])

function voa_indices(voa)
    CI = []
    for array_number in 1:length(voa)
        for ci in CartesianIndices(voa[array_number])
            ci = CartesianIndex(array_number, Tuple(ci)...)
            push!(CI, ci)
        end
    end
    return CI
end

for i in voa_indices(v)
    @show i
    @show v[i]
    println()
end

Fix so test case passes:

@inline Base.getindex(VA::AbstractVectorOfArray{T,N}, I::CartesianIndex) where {T, N} = VA.u[Tuple(I)[1]][Tuple(I)[2:end]...]

Thanks for your work, julia definitely seems more powerful than python

[YingboMa]

Note that the vector is now in the trilling dimension of CartesianIndex, e.g.

 VA.u[Tuple(I)[end]][Tuple(I)[1:end-1]...]