title: Change FloodFill-Algorithm to get Voronoi Territory for two data points?
body: <p>I got a grid with two points. I want to calculate the amount squares each point can reach before the other. Currently I implement a FloodFill-Algoritm, which can calculate the amount of squares one point can reach.</p>
  
  <p>How can I change that algorithm to do the "flooding" for both points simaltaneuosly or at least one after another? </p>