Struct Vec2 

pub struct Vec2 {
    pub x: f64,
    pub y: f64,
}

2D vector (fluid grids, planar geometry).

Fields

x: f64

y: f64

Implementations

impl Vec2

pub const ZERO: Vec2

pub fn new(x: f64, y: f64) -> Self

Constructs a new 2D vector.

pub fn magnitude(&self) -> f64

Euclidean length.

pub fn magnitude_squared(&self) -> f64

Squared length.

pub fn normalized(&self) -> Self

Unit vector in this direction (zero vector maps to zero).

pub fn dot(&self, other: &Vec2) -> f64

Dot product.

pub fn cross(&self, other: &Vec2) -> f64

Scalar (z-component of the 3D) cross product.

pub fn perp(&self) -> Vec2

Counterclockwise perpendicular (-y, x).

pub fn lerp(&self, other: &Vec2, t: f64) -> Vec2

Linear interpolation toward other.

pub fn distance_to(&self, other: &Vec2) -> f64

Distance to another point.

pub fn angle_between(&self, other: &Vec2) -> f64

Unsigned angle to another vector in [0, pi].

pub fn rotate(&self, angle: f64) -> Vec2

Rotation by angle radians counter-clockwise about the origin.

pub fn to_vec3(&self) -> Vec3

Embedding into 3-D with z = 0.

Trait Implementations

impl Add for Vec2

type Output = Vec2

The resulting type after applying the + operator.

fn add(self, rhs: Vec2) -> Vec2

Performs the + operation.

impl Clone for Vec2

fn clone(&self) -> Vec2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Vec2

impl Debug for Vec2

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

Formats the value using the given formatter.

impl Default for Vec2

fn default() -> Vec2

Returns the “default value” for a type.

impl Mul<f64> for Vec2

type Output = Vec2

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> Vec2

Performs the * operation.

impl Neg for Vec2

type Output = Vec2

The resulting type after applying the - operator.

fn neg(self) -> Vec2

Performs the unary - operation.

impl PartialEq for Vec2

fn eq(&self, other: &Vec2) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Vec2

impl Sub for Vec2

type Output = Vec2

The resulting type after applying the - operator.

fn sub(self, rhs: Vec2) -> Vec2

Performs the - operation.