Consider a policy-based/mixin design #25
Description
Right now the implementation is generic and works for arbitrary types, but does not allow for much customization, which means that optimizations cannot easily be used when they are applicable. A design that allows feature injection would enable, for instance, the use of jump point search when the state is known to be a grid with uniform costs. Such an implementation should provide reasonable defaults in order that the user is able to specify as little as possible but as much as desired.