Struct Eyes 

pub struct Eyes {
    pub rx: f32,
    pub ratio: f32,
    pub gap: f32,
    pub rise: f32,
    pub lean: f32,
    pub n: f32,
}

Fields

rx: f32

Half-width of one eye.

ratio: f32

Height against width. Past ~1.5 the eye reads as a capsule.

gap: f32

Half the centre-to-centre distance.

rise: f32

How high on the body the pair sits.

lean: f32

Degrees, mirrored between the two.

n: f32

Superellipse exponent — 2 is an ellipse, 5 a rounded slab.

Implementations

impl Eyes

pub const CALM: Self

pub const WIDE: Self

pub const KEEN: Self

pub const SLEEPY: Self

pub const TALL: Self

pub const DOTS: Self

n near 2 is a true ellipse, which at this ratio is a circle.

pub const SLY: Self

A lean only reads on an elongated eye — a round one looks the same at every angle.

pub const CLOSE: Self

pub const FAR: Self

pub const LOW: Self

pub const PRESETS: [(&'static str, Self); 10]

impl Eyes

pub fn place(&self, shape: &Shape, drift: f32) -> [Eye; 2]

Fits the pair against the body’s real radius in each eye’s own direction.

Solved once and never again: a fit that re-ran per frame would resize the eyes as the gaze drifted, which is the tremble bloub documents. So drift — how far motion may later wander — is spent here, at the worst case over everywhere it can reach.

Trait Implementations

impl Clone for Eyes

fn clone(&self) -> Eyes

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Eyes

impl Debug for Eyes

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

Formats the value using the given formatter.

impl Default for Eyes

fn default() -> Self

Returns the “default value” for a type.

impl From<u64> for Eyes

fn from(seed: u64) -> Self

Converts to this type from the input type.

impl PartialEq for Eyes

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Eyes