use std::fmt;
use std::ops;
#[derive(Clone, Copy, Default, PartialEq)]
pub struct Pos2 {
pub x: f32,
pub y: f32,
}
impl Pos2 {
#[inline]
pub fn zero() -> Self {
Self::default()
}
#[inline]
pub fn length_squared(&self) -> f32 {
self.dot(*self)
}
#[inline]
pub fn length(&self) -> f32 {
self.x.hypot(self.y)
}
#[inline]
pub fn dot(&self, other: Self) -> f32 {
self.x.mul_add(other.x, self.y * other.y)
}
#[inline]
pub fn distance(&self, other: Self) -> f32 {
(*self - other).length()
}
#[inline]
pub fn normalize(self) -> Pos2 {
self / self.length()
}
}
impl ops::Add<Pos2> for Pos2 {
type Output = Self;
#[inline]
fn add(self, rhs: Self) -> Self::Output {
Self {
x: self.x + rhs.x,
y: self.y + rhs.y,
}
}
}
impl ops::Sub<Pos2> for Pos2 {
type Output = Self;
#[inline]
fn sub(self, rhs: Self) -> Self::Output {
Self {
x: self.x - rhs.x,
y: self.y - rhs.y,
}
}
}
impl ops::Mul<f32> for Pos2 {
type Output = Self;
#[inline]
fn mul(self, rhs: f32) -> Self::Output {
Self {
x: self.x * rhs,
y: self.y * rhs,
}
}
}
impl ops::Div<f32> for Pos2 {
type Output = Self;
#[inline]
fn div(self, rhs: f32) -> Self::Output {
Self {
x: self.x / rhs,
y: self.y / rhs,
}
}
}
impl ops::AddAssign for Pos2 {
fn add_assign(&mut self, other: Self) {
*self = Self {
x: self.x + other.x,
y: self.y + other.y,
};
}
}
impl fmt::Display for Pos2 {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}", self)
}
}
impl fmt::Debug for Pos2 {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "({}, {})", self.x, self.y)
}
}