phaser - v4.0.0-rc.4
    Preparing search index...

    This method will search the given circular area and return an array of all physics bodies that overlap with it. It can return either Dynamic, Static bodies or a mixture of both.

    A body only has to intersect with the search area to be considered, it doesn't have to be fully contained within it.

    If Arcade Physics is set to use the RTree (which it is by default) then the search is rather fast, otherwise the search is O(N) for Dynamic Bodies.