Module router 

Mode-tagged routing graph and Dijkstra router.

This is a small multi-modal shortest-path engine. Nodes are opaque u64 identifiers; edges carry a traversal cost and an rustsim_modes::AllowedModes permission mask. The router only relaxes edges whose permission mask intersects the traveller’s available mode set.

Structs

ModalEdge

A directed, mode-tagged edge.

ModalGraph

Mode-tagged routing graph.

ModalRoute

Resulting route from shortest_path.

Enums

ModalGraphBuildError

Errors returned when building a modal graph from transport link metadata.

Functions

only

Permission helper for single-mode callers.

shortest_path

Compute the lowest-cost path from start to goal using only edges that permit at least one mode in available_modes. Returns None if unreachable.

Type Aliases

NodeId

Opaque node identifier in the routing graph.