Struct physics2d::Vec2

pub struct Vec2 {
    pub x: f32,
    pub y: f32,
}

A 2-dimensional vector.

The Vec2 type can be used to represent anything that has two dimensions: a size, a point, a velocity, etc.

Fields

x: f32

X coordinate of the vector.

y: f32

Y coordinate of the vector.

Methods

impl Vec2

fn new(x: f32, y: f32) -> Vec2

Creates a new vector from its coordinates.

fn len(&self) -> f32

Returns the length (magnitude) of the vector.

Examples

let v = Vec2::new(3.0, 4.0);
assert_eq!(v.len(), 5.0);

fn sqr_len(&self) -> f32

Returns the square of the length (magnitude) of the vector.

Examples

let v = Vec2::new(3.0, 4.0);
assert_eq!(v.sqr_len(), 25.0);
assert_eq!(v.sqr_len(), v.len() * v.len());

fn dot(&self, b: &Vec2) -> f32

Returns the dot product of this vector with another vector.

Examples

let a = Vec2::new(3.0, 4.0);
let b = Vec2::new(4.0, 5.0);

assert_eq!(a.dot(&b), 32.0);

fn normalized(self) -> Vec2

Returns the normalized (unit) vector for the given vector.

Examples

let v = Vec2::new(3.0, 4.0);
let l = v.len();
let n = v.normalized();

assert_eq!(n, v / l);
assert_eq!(n.len(), 1.0);

const ZERO: Vec2

ZERO: Vec2 = Vec2{x: 0.0, y: 0.0,}

const UP: Vec2

UP: Vec2 = Vec2{x: 0.0, y: 1.0,}

const RIGHT: Vec2

RIGHT: Vec2 = Vec2{x: 1.0, y: 0.0,}

const DOWN: Vec2

DOWN: Vec2 = Vec2{x: 0.0, y: -1.0,}

const LEFT: Vec2

LEFT: Vec2 = Vec2{x: -1.0, y: 0.0,}

const ONE: Vec2

ONE: Vec2 = Vec2{x: 1.0, y: 1.0,}

Trait Implementations

impl PartialEq for Vec2

fn eq(&self, __arg_0: &Vec2) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Vec2) -> bool

This method tests for !=.

impl Copy for Vec2

impl Clone for Vec2

fn clone(&self) -> Vec2

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Vec2

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Cross for Vec2

type Output = f32

The type of the result of the cross product.

fn cross(self, other: Vec2) -> f32

Performs the cross product.

impl<'a> Cross<Vec2> for &'a Vec2

type Output = f32

The type of the result of the cross product.

fn cross(self, other: Vec2) -> f32

Performs the cross product.

impl<'b> Cross<&'b Vec2> for Vec2

type Output = f32

The type of the result of the cross product.

fn cross(self, other: &'b Vec2) -> f32

Performs the cross product.

impl<'a, 'b> Cross<&'b Vec2> for &'a Vec2

type Output = f32

The type of the result of the cross product.

fn cross(self, other: &'b Vec2) -> f32

Performs the cross product.

impl Cross<f32> for Vec2

type Output = Vec2

The type of the result of the cross product.

fn cross(self, s: f32) -> Vec2

Performs the cross product.

impl<'a> Cross<f32> for &'a Vec2

type Output = Vec2

The type of the result of the cross product.

fn cross(self, s: f32) -> Vec2

Performs the cross product.

impl<'b> Cross<&'b f32> for Vec2

type Output = Vec2

The type of the result of the cross product.

fn cross(self, s: &'b f32) -> Vec2

Performs the cross product.

impl<'a, 'b> Cross<&'b f32> for &'a Vec2

type Output = Vec2

The type of the result of the cross product.

fn cross(self, s: &'b f32) -> Vec2

Performs the cross product.

impl Neg for Vec2

type Output = Self

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl<'a> Neg for &'a Vec2

type Output = Vec2

The resulting type after applying the - operator.

fn neg(self) -> Vec2

Performs the unary - operation.

impl Add for Vec2

type Output = Vec2

The resulting type after applying the + operator.

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

Performs the + operation.

impl<'a> Add<Vec2> for &'a Vec2

type Output = Vec2

The resulting type after applying the + operator.

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

Performs the + operation.

impl<'b> Add<&'b Vec2> for Vec2

type Output = Vec2

The resulting type after applying the + operator.

fn add(self, other: &'b Vec2) -> Vec2

Performs the + operation.

impl<'a, 'b> Add<&'b Vec2> for &'a Vec2

type Output = Vec2

The resulting type after applying the + operator.

fn add(self, other: &'b Vec2) -> Vec2

Performs the + operation.

impl AddAssign for Vec2

fn add_assign(&mut self, other: Vec2)

Performs the += operation.

impl<'b> AddAssign<&'b Vec2> for Vec2

fn add_assign(&mut self, other: &'b Vec2)

Performs the += operation.

impl Sub for Vec2

type Output = Vec2

The resulting type after applying the - operator.

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

Performs the - operation.

impl<'a> Sub<Vec2> for &'a Vec2

type Output = Vec2

The resulting type after applying the - operator.

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

Performs the - operation.

impl<'b> Sub<&'b Vec2> for Vec2

type Output = Vec2

The resulting type after applying the - operator.

fn sub(self, other: &'b Vec2) -> Vec2

Performs the - operation.

impl<'a, 'b> Sub<&'b Vec2> for &'a Vec2

type Output = Vec2

The resulting type after applying the - operator.

fn sub(self, other: &'b Vec2) -> Vec2

Performs the - operation.

impl SubAssign for Vec2

fn sub_assign(&mut self, other: Vec2)

Performs the -= operation.

impl<'b> SubAssign<&'b Vec2> for Vec2

fn sub_assign(&mut self, other: &'b Vec2)

Performs the -= operation.

impl Mul<f32> for Vec2

type Output = Vec2

The resulting type after applying the * operator.

fn mul(self, s: f32) -> Vec2

Performs the * operation.

impl<'a> Mul<f32> for &'a Vec2

type Output = Vec2

The resulting type after applying the * operator.

fn mul(self, s: f32) -> Vec2

Performs the * operation.

impl<'b> Mul<&'b f32> for Vec2

type Output = Vec2

The resulting type after applying the * operator.

fn mul(self, s: &'b f32) -> Vec2

Performs the * operation.

impl<'a, 'b> Mul<&'b f32> for &'a Vec2

type Output = Vec2

The resulting type after applying the * operator.

fn mul(self, s: &'b f32) -> Vec2

Performs the * operation.

impl MulAssign<f32> for Vec2

fn mul_assign(&mut self, s: f32)

Performs the *= operation.

impl<'b> MulAssign<&'b f32> for Vec2

fn mul_assign(&mut self, s: &'b f32)

Performs the *= operation.

impl Div<f32> for Vec2

type Output = Vec2

The resulting type after applying the / operator.

fn div(self, s: f32) -> Vec2

Performs the / operation.

impl<'a> Div<f32> for &'a Vec2

type Output = Vec2

The resulting type after applying the / operator.

fn div(self, s: f32) -> Vec2

Performs the / operation.

impl<'b> Div<&'b f32> for Vec2

type Output = Vec2

The resulting type after applying the / operator.

fn div(self, s: &'b f32) -> Vec2

Performs the / operation.

impl<'a, 'b> Div<&'b f32> for &'a Vec2

type Output = Vec2

The resulting type after applying the / operator.

fn div(self, s: &'b f32) -> Vec2

Performs the / operation.

impl DivAssign<f32> for Vec2

fn div_assign(&mut self, s: f32)

Performs the /= operation.

impl<'b> DivAssign<&'b f32> for Vec2

fn div_assign(&mut self, s: &'b f32)

Performs the /= operation.