Define the neighborhood of SetNeighbors based on read data value

[remylegoff]

Is it possible to create a SetNeighbors where the neighborhood is defined on the cell value of read data. Similar to :

dispersion_rule =
    SetNeighbors{Tuple{:abundance,:dispersion_ability},Tuple{:abundance}}(neighborhood=VonNeuman{:dispersion_ability}) do data, hood, state, I 
        for pos in indices(hood, I)
                    migrate = state[:abundance]*state[:dispersion_rate]
                    add!(data[:abundance],migrate, pos...)
                    sub!(data[:abundance],migrate, I...)
                end
            end
    end

[rafaqz]

Does that code not work already?

If the dispersion rate is constant but spatial you can also put it in aux

[remylegoff]

I get the error :
ERROR: MethodError: no method matching radius(::Type{Moore{:dispersion_rate}})

[rafaqz]

Oh I missed that bit with the type

You want the neighbourhood length to change depending on the cell value?

(If so no, it would be horribly slow too. But you can hack if with an if block that just uses a different nighborhood based on the value. That will be fast)

[remylegoff]

Yes exactly. The cell value define the dispersal ability so the maximum distance that can be reach

[rafaqz]

Ok just use an if block to choose from the list of neighbourhoods.

Use the largest one as the rule neighbourhood so the bounds padding works.