The JPS Pathfinding System

Proceedings of the International Symposium on Combinatorial Search, 5

Volume

Vol. 5 No. 1 (2012): Fifth Annual Symposium on Combinatorial Search

Grid-Based Path Planning Competition

We describe a pathfinding system based on Jump Point Search (JPS): a recent and very successful search strategy that performs symmetry breaking to speed up optimal pathfinding on grid maps. We first modify JPS for grid maps where corner-cutting moves are not allowed. We then describe JPS+: a new derivative search strategy that reformulates an input graph into an equivalent symmetry-reduced form that can be searched more efficiently. JPS and JPS+ were both submitted to the 2012 Grid-based Path Planning Competition.

10.1609/socs.v3i1.18254