Randomize AI eps parameter (paths and lines)
Randomize AI eps parameter (paths and lines)

This let's us avoid loops as in

                             O...............O..O......
                    .....O-----.O.OO1....----..........
                    ......-   -..........-..|..........
                    ......-----..O.....O.|..|O......O..
                    .............OO....2O----O.........

                             O.......1.......O..O......
                    .....O-----.O.OO.....----..........
                    ......-   -..........-..|..........
                    ......-----..O.....O2|..|O......O..
                    .............OO.....O----O.........

where the '2' actor flees between two tiles and the '1' actor
picks one of the optimal paths, starting with a NE move.

LambdaHack/LambdaHack