kingmaker 0.1.0

A modular, performant, social choice framework for the simulation, computation, and analysis of strategic voting.
Documentation 
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use crate::core::{Id, Ordinal, Tactic};

/// The burial tactic buries some leading candidate to hopefully knock them out early in the methods. The `Vec<Id>` specifies the candidates to bury, with the new ranking being `(ballot - buried) + buried`.
#[derive(Debug)]
pub struct Burial {
    burials: Vec<Id>,
}

impl Burial {
    #[must_use]
    pub const fn new(burials: Vec<Id>) -> Self {
        Self { burials }
    }
}

impl Tactic<Ordinal> for Burial {
    fn apply(&self, ballot: Ordinal) -> Ordinal {
        let mut ranking: Vec<Id> = (*ballot).clone();
        ranking.retain(|c| !self.burials.contains(c));
        ranking.append(&mut self.burials.clone());
        Ordinal(ranking)
    }
}