Sort array

array is formatted like this:
array[0,0]=THE X OF THE FIRST POSITION
array[0,1]=THE Y OF THE FIRST POSITION
the goal is to sort array so that
array[1,0],array[1,1]=THE CLOSEST POSITION TO array[0,0],array[0,1]
And so on.

SAMPLE START:
array[0,0]=10
array[0,1]=10
array[1,0]=0
array[1,1]=0
array[2,0]=5
array[2,1]=5

SAMPLE FINISH:
array[0,0]=10
array[0,1]=10
array[1,0]=5
array[1,1]=5
array[2,0]=0
array[2,1]=0