Struct PhysState 

pub struct PhysState {
    pub quantities: HashMap<String, f64>,
}

A snapshot of physical quantities at a single instant.

Fields

quantities: HashMap<String, f64>

Quantity name → value (SI).

Implementations

impl PhysState

pub fn new() -> Self

Create an empty state.

pub fn set(&mut self, name: impl Into<String>, value: f64)

Insert / update a quantity.

pub fn get(&self, name: &str) -> Option<f64>

Get a quantity, returning None if absent.

pub fn require(&self, name: &str) -> PhysicsResult<f64>

Get a quantity or return an error.

Trait Implementations

impl Clone for PhysState

fn clone(&self) -> PhysState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PhysState

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

Formats the value using the given formatter.

impl Default for PhysState

fn default() -> PhysState

Returns the “default value” for a type.