The description of a class providing a cost for a given tile based
on a target location and entity being moved. This heuristic controls
what priority is placed on different tiles during the search for a path
get the additional heuristic cost of the given tile.
float getCost(TileBasedMap map,
get the additional heuristic cost of the given tile. This controls the
order in which tiles are searched while attempting to find a path to the
target location. The lower the cost the more likely the tile will