// -*- coding: utf-8 -*-
//
// Copyright 2021 Michael Buesch <m@bues.ch>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

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

pub type CoordAxis = i16;

#[derive(Copy, Clone, PartialEq, Debug)]
pub struct Coord {
    pub x: CoordAxis,
    pub y: CoordAxis,
}

impl fmt::Display for Coord {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "(X={}, Y={})", self.x, self.y)
    }
}

impl Add for Coord {
    type Output = Coord;

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

impl Sub for Coord {
    type Output = Coord;

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

#[macro_export]
macro_rules! coord {
    ( $x:expr, $y:expr ) => {
        Coord {
            x: $x,
            y: $y,
        }
    }
}

// vim: ts=4 sw=4 expandtab