Struct WorldState 

pub struct WorldState(/* private fields */);

A set of named boolean conditions describing world state.

Implementations

impl WorldState

pub fn new() -> Self

pub fn set(&mut self, key: &str, value: bool)

pub fn get(&self, key: &str) -> bool

pub fn satisfies(&self, goal: &WorldState) -> bool

Check if this state satisfies all conditions in goal.

pub fn apply(&self, effects: &WorldState) -> WorldState

Apply an action’s effects, returning a new state.

pub fn distance_to(&self, goal: &WorldState) -> usize

Distance heuristic: number of conditions in goal not satisfied.

Trait Implementations

impl Clone for WorldState

fn clone(&self) -> WorldState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorldState

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

Formats the value using the given formatter.

impl Default for WorldState

fn default() -> WorldState

Returns the “default value” for a type.

impl PartialEq for WorldState

fn eq(&self, other: &WorldState) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for WorldState

impl StructuralPartialEq for WorldState