use std::fmt::{self, Display, Formatter};
use std::ops::{Add, AddAssign, Div, Mul, MulAssign, Sub, SubAssign};

/// Just a vector
#[derive(Debug, Default, Copy, Clone, PartialEq, PartialOrd)]
pub struct Vector2 {
    pub x: f32,
    pub y: f32,
}

impl Display for Vector2 {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        write!(f, "[{}, {}]", self.x, self.y)
    }
}

impl Vector2 {
    pub fn new(x: f32, y: f32) -> Self {
        Self { x, y }
    }

    pub fn abs(self) -> Self {
        Self {
            x: self.x.abs(),
            y: self.y.abs(),
        }
    }
}


impl Add for Vector2 {
    type Output = Vector2;

    fn add(self, o: Vector2) -> Self::Output {
        Vector2 {
            x: self.x + o.x,
            y: self.y + o.y,
        }
    }
}


impl AddAssign for Vector2 {
    fn add_assign(&mut self, o: Self) {
        *self = Self {
            x: self.x + o.x,
            y: self.y + o.y,
        }
    }
}


impl Sub for Vector2 {
    type Output = Vector2;

    fn sub(self, o: Vector2) -> Self::Output {
        Vector2 {
            x: self.x - o.x,
            y: self.y - o.y,
        }
    }
}

impl SubAssign for Vector2 {
    fn sub_assign(&mut self, o: Self) {
        *self = Self {
            x: self.x - o.x,
            y: self.y - o.y,
        }
    }
}


impl Mul for Vector2 {
    type Output = Vector2;

    fn mul(self, o: Vector2) -> Self::Output {
        Vector2 {
            x: self.x * o.x,
            y: self.y * o.y,
        }
    }
}

impl Div<f32> for Vector2 {
    type Output = Vector2;

    fn div(self, o: f32) -> Self::Output {
        Vector2 {
            x: self.x / o,
            y: self.y / o,
        }
    }
}

impl Mul<f32> for Vector2 {
    type Output = Vector2;

    fn mul(self, o: f32) -> Self::Output {
        Self {
            x: self.x * o,
            y: self.y * o,
        }
    }
}

impl MulAssign for Vector2 {
    fn mul_assign(&mut self, o: Self) {
        *self = Self {
            x: self.x * o.x,
            y: self.y * o.y,
        }
    }
}

impl From<Vector2> for mint::Point2<f32> {
    fn from(v: Vector2) -> Self {
        [v.x, v.y].into()
    }
}

impl From<mint::Point2<f32>> for Vector2 {
    fn from(v: mint::Point2<f32>) -> Self {
        Self { x: v.x, y: v.y }
    }
}