numples 1.2.0

Yet another colourful sudoku playing game.
Documentation 
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub enum Anim {
    Set {x: usize, y: usize, value: u8},
    Unset {x: usize, y: usize, value: u8},
    SetCandidate {x: usize, y: usize, value: u8},
    UnsetCandidate {x: usize, y: usize, value: u8},
}

impl Anim {

    pub fn is_candidate(&self) -> bool {
        matches!(self, Self::SetCandidate { .. }) || matches!(self, Self::UnsetCandidate { .. })
    }

    pub fn is_at(&self, x: usize, y: usize) -> bool {
        let (tx, ty) = self.xy();
        tx == x && ty == y
    }

    pub fn xy(&self) -> (usize, usize) {
        match self {
            Self::Set {x, y, ..} => (*x, *y),
            Self::Unset {x, y, ..} => (*x, *y),
            Self::SetCandidate {x, y, ..} => (*x, *y),
            Self::UnsetCandidate {x, y, ..} => (*x, *y),
        }
    }
}