rect.rs

use std::ops::{Add, Sub};

#[derive(Copy, Debug)]
pub struct Rect<T> {
    pub left: T,
    pub top: T,
    pub right: T,
    pub bottom: T
}

impl<T : Add<T> + Sub<T> + Copy> Rect<T> {
    pub fn width(&self) -> <T as Sub>::Output {
        return self.right - self.left;
    }

    pub fn height(&self) -> <T as Sub>::Output {
        return self.bottom - self.top;
    }
}

#[derive(Copy, Debug)]
pub struct Point<T> {
    pub x: T,
    pub y: T
}

impl<T : PartialEq> PartialEq for Point<T> {
    fn eq(&self, other:&Point<T>) -> bool {
        self.x == other.x && self.y == other.y
    }
}

pub type Recti = Rect<isize>;
pub type Rectf = Rect<f32>;
pub type Sizei = Point<isize>;
pub type Posi = Point<isize>;