Struct RegionGraph 

pub struct RegionGraph { /* private fields */ }

Regions, the walk distance between neighbours, and for each region the set of regions that must be resident while the player is in it (the cooker’s closure V(R)).

Implementations

impl RegionGraph

pub fn new() -> Self

An empty graph.

pub fn chain(count: u32, sectors: u32, length: u32) -> Self

A chain of count regions of sectors sectors, neighbours length units apart, each needing itself only until Self::needs_with_neighbors.

pub fn grid(width: u32, height: u32, sectors: u32, length: u32) -> Self

A width x height grid, row-major on disc, neighbours length apart.

pub fn add_region(&mut self, sectors: u32) -> u32

Add a region; returns its id (ids are dense from 0). Its disc position is set by Self::layout_in_order or Self::place.

pub fn place(&mut self, region: u32, lba: u32)

Put region at sector lba.

pub fn layout_in_order(&mut self, start_lba: u32, gap: u32)

Lay regions out in id order from start_lba, gap sectors apart.

pub fn connect(&mut self, a: u32, b: u32, length: u32)

Connect two regions both ways, length units apart.

pub fn set_needs(&mut self, region: u32, needs: &[u32])

Set the regions that must be resident while the player is in region.

pub fn needs_with_neighbors(&mut self)

Every region needs itself and its direct neighbours.

pub fn region_count(&self) -> usize

Number of regions.

pub fn region(&self, id: u32) -> SimRegion

Region id.

pub fn needs(&self, region: u32) -> &[u32]

Regions needed while the player is in region.

pub fn edge_length(&self, a: u32, b: u32) -> Option<u32>

Edge length between two neighbours.

pub fn total_sectors(&self) -> u64

Total sectors of all regions.

pub fn distances_from(&self, from: u32) -> Vec<u32>

Walk distance from from to every region (Dijkstra over edge lengths); u32::MAX for unreachable regions.

Trait Implementations

impl Clone for RegionGraph

fn clone(&self) -> RegionGraph

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RegionGraph

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RegionGraph

fn default() -> RegionGraph

Returns the “default value” for a type.