JPS Node ID Size and Direction Issue

[heavenfall]

JPS 2+ expansion policy is set to encode the direction into the node_id value;

jps_id stores the node id value used in jps algorithms as a uint32_t (32-bit unsigned). The current implementation for this version stores the direction into the id values on the MSB of the uint32_t value.

This restricts the id values on maps to 2^24 max, around 2^12 x 2^12 or 4096x4096 maximum dimensions, smaller than some maps used in iron harvest benchmarks.

Propose discussion on how to solve this issue, including either:

• Widening jps_id
• Rewrite