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use crate::ser::{Ser, Sink, Source};
#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Vec2<T> {
pub x: T,
pub y: T,
}
impl Vec2<isize> {
pub const ZERO: Vec2<isize> = Vec2 { x: 0, y: 0 };
pub const UP: Vec2<isize> = Vec2 { x: 0, y: -1 };
pub const LEFT: Vec2<isize> = Vec2 { x: -1, y: 0 };
}
impl Vec2<f32> {
pub const ZERO: Vec2<f32> = Vec2 { x: 0.0, y: 0.0 };
pub const UP: Vec2<f32> = Vec2 { x: 0.0, y: -1.0 };
pub const LEFT: Vec2<f32> = Vec2 { x: -1.0, y: 0.0 };
}
impl<T: std::ops::Div<Output = T> + Copy> Vec2<T> {
pub fn downscale(&self, f: T) -> Self {
Self {
x: self.x / f,
y: self.y / f,
}
}
}
impl Ser for Vec2<isize> {
fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
sink.put((self.x, self.y))
}
fn read(source: &mut impl std::io::Read) -> anyhow::Result<Self> {
let (x, y) = source.get()?;
Ok(Vec2 { x, y })
}
}
pub struct Small<T>(pub T);
impl Ser for Small<Vec2<isize>> {
fn write(&self, sink: &mut impl std::io::Write) -> anyhow::Result<()> {
sink.put((self.0.x as i8, self.0.y as i8))
}
fn read(source: &mut impl std::io::Read) -> anyhow::Result<Self> {
let (x, y): (i8, i8) = source.get()?;
Ok(Small(Vec2 {
x: x as isize,
y: y as isize,
}))
}
}
impl<T: std::ops::Add> std::ops::Add for Vec2<T> {
type Output = Vec2<T::Output>;
#[inline]
fn add(self, rhs: Self) -> Self::Output {
Vec2 {
x: self.x + rhs.x,
y: self.y + rhs.y,
}
}
}
impl<T: std::ops::Sub> std::ops::Sub for Vec2<T> {
type Output = Vec2<T::Output>;
#[inline]
fn sub(self, rhs: Self) -> Self::Output {
Vec2 {
x: self.x - rhs.x,
y: self.y - rhs.y,
}
}
}
impl<T: std::ops::Mul> std::ops::Mul for Vec2<T> {
type Output = Vec2<T::Output>;
#[inline]
fn mul(self, rhs: Self) -> Self::Output {
Vec2 {
x: self.x * rhs.x,
y: self.y * rhs.y,
}
}
}
impl<T> From<(T, T)> for Vec2<T> {
#[inline]
fn from((x, y): (T, T)) -> Self {
Vec2 { x, y }
}
}
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