Module astar 

A* pathfinding – generic and grid-specific variants.

Provides:

• astar – fully generic A* over any graph/node type
• astar_grid2d – simple convenience wrapper for 2D grids
• astar_grid2d_opts – full-featured grid A* with cost metrics, periodic boundaries, admissibility, and walkability maps

Structs

AStarResult

Result of a successful A* search.

GridAStarOpts

Options for the full-featured grid A* pathfinder.

Functions

astar

Generic A* pathfinding.

astar_grid2d

Convenience: A* on a 2D grid with a walkability map.

astar_grid2d_opts

Full-featured A* on a 2D grid with cost metrics, periodic boundaries, admissibility, and walkability maps.