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/// Coordinate: Define a place on a 3D canvas.
#[derive(Debug, Clone, Copy)]
pub struct Coordinate {
    x: i32,
    y: i32,
    z: i32,
}

impl Coordinate {
    #[inline]
    pub fn new(x: i32, y: i32, z: i32) -> Coordinate {
        Coordinate { x: x, y: y, z: z }
    }

    #[inline]
    pub fn x(&self) -> i32 {
        self.x
    }

    #[inline]
    pub fn y(&self) -> i32 {
        self.y
    }

    #[inline]
    pub fn z(&self) -> i32 {
        self.z
    }
}