Path finding algorithm?

This is my attempt at pathfinding, its designed on a hexagonal grid.

Ive implemented djikstra, djikstra with multi path and an alternative to a* which provides step count from each node to every other node. Although this isnt yet complete.

Also not it is slow as i do not make use of PGraphics.

Paths have parent nodes and can also be used to pathfind.

For an understanding of the a* algorithm you could always check Dan Shiffman

A comparison of the different algorithms.

Depth first, breadth first, djikstra, a*