Local Maps Revisted

So with a little help from my friend James, I’ve now written a new algorithm for local maps.

It has yet to be implemented but should be way faster and memory effective.

Array
(
    [0] => Array
        (
            [0] => -3
            [1] => -2
            [2] => -1
            [3] => 0
            [4] => -1
        )

    [1] => Array
        (
            [0] => -3
            [1] => -2
            [2] => -1
            [3] => 0
            [4] => -1
        )

    [2] => Array
        (
            [0] => -1
            [1] => -1
            [2] => 1
            [3] => 2
            [4] => 3
        )

    [3] => Array
        (
            [0] => -1
            [1] => -1
            [2] => 26
            [3] => 27
            [4] => 28
        )

    [4] => Array
        (
            [0] => -1
            [1] => -1
            [2] => 51
            [3] => 52
            [4] => 53
        )

)