732 lines
21 KiB
Rust
732 lines
21 KiB
Rust
use rand::Rng;
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use std::{collections::HashSet, fmt};
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fn select_weighted<T>(weights: Vec<(u8, T)>, rng: &mut impl Rng, nothing_weight: u8) -> Option<T> {
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let total = weights.iter().fold(0, |acc, (i, _)| acc + i) + nothing_weight;
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if total == 0 {
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return None;
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}
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let selected = rng.gen_range(0, total);
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let (_, opt) = weights
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.into_iter()
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.fold((selected, None), |(selected, acc), (weight, item)| {
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if acc.is_some() {
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return (selected, acc);
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}
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if selected.saturating_sub(weight) == 0 {
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return (0, Some(item));
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}
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(selected.saturating_sub(weight), None)
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});
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opt
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}
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#[derive(Debug)]
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enum Descriptor {
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Sleek,
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Large,
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Small,
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Swift,
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Skinny,
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Thin,
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Young,
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Old,
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LongLeg,
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LongHair,
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LongTail,
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Huge,
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Massive,
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Scars,
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Pretty,
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Handsome,
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Beautiful,
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Mottled,
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}
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impl Descriptor {
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fn weights(variant: PeltVariant) -> Vec<(u8, Descriptor)> {
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if PeltVariant::Base == variant {
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vec![
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(1, Descriptor::Sleek),
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(1, Descriptor::Large),
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(1, Descriptor::Small),
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(1, Descriptor::Swift),
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(1, Descriptor::Skinny),
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(1, Descriptor::Thin),
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(1, Descriptor::Young),
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(1, Descriptor::Old),
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(1, Descriptor::LongLeg),
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(1, Descriptor::LongHair),
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(1, Descriptor::LongTail),
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(1, Descriptor::Huge),
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(1, Descriptor::Massive),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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(1, Descriptor::Mottled),
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]
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} else {
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vec![
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(1, Descriptor::Sleek),
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(1, Descriptor::Large),
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(1, Descriptor::Small),
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(1, Descriptor::Swift),
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(1, Descriptor::Skinny),
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(1, Descriptor::Thin),
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(1, Descriptor::Young),
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(1, Descriptor::Old),
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(1, Descriptor::LongLeg),
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(1, Descriptor::LongHair),
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(1, Descriptor::LongTail),
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(1, Descriptor::Huge),
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(1, Descriptor::Massive),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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]
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}
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}
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fn next_weights(&self, variant: PeltVariant) -> Vec<(u8, Descriptor)> {
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match self {
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Descriptor::Sleek => vec![],
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Descriptor::Massive | Descriptor::Huge | Descriptor::Large
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if variant == PeltVariant::Base =>
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{
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vec![
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(1, Descriptor::LongLeg),
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(1, Descriptor::LongHair),
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(1, Descriptor::Old),
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(1, Descriptor::Young),
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(1, Descriptor::LongTail),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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(1, Descriptor::Mottled),
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]
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}
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Descriptor::Massive | Descriptor::Huge | Descriptor::Large => vec![
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(1, Descriptor::LongLeg),
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(1, Descriptor::LongHair),
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(1, Descriptor::Old),
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(1, Descriptor::Young),
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(1, Descriptor::LongTail),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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],
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Descriptor::Small if variant == PeltVariant::Base => vec![
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(1, Descriptor::Sleek),
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(1, Descriptor::Swift),
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(1, Descriptor::Skinny),
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(1, Descriptor::Thin),
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(1, Descriptor::Old),
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(1, Descriptor::Young),
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(1, Descriptor::LongHair),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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(1, Descriptor::Mottled),
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],
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Descriptor::Small => vec![
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(1, Descriptor::Sleek),
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(1, Descriptor::Swift),
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(1, Descriptor::Skinny),
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(1, Descriptor::Thin),
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(1, Descriptor::Old),
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(1, Descriptor::Young),
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(1, Descriptor::LongHair),
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(1, Descriptor::Scars),
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(1, Descriptor::Handsome),
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(1, Descriptor::Pretty),
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(1, Descriptor::Beautiful),
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],
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Descriptor::Swift => vec![],
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Descriptor::Skinny => vec![],
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Descriptor::Thin => vec![],
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Descriptor::Young => vec![],
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Descriptor::Old => vec![],
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Descriptor::LongLeg => vec![],
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Descriptor::LongHair => vec![],
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Descriptor::LongTail => vec![],
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Descriptor::Scars => vec![],
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Descriptor::Handsome => vec![(1, Descriptor::Old), (1, Descriptor::Young)],
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Descriptor::Pretty => vec![(1, Descriptor::Old), (1, Descriptor::Young)],
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Descriptor::Beautiful => vec![(1, Descriptor::Old), (1, Descriptor::Young)],
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Descriptor::Mottled => vec![],
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}
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}
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}
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impl fmt::Display for Descriptor {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let s = match self {
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Descriptor::Sleek => "sleek",
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Descriptor::Large => "large",
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Descriptor::Small => "small",
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Descriptor::Swift => "swift",
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Descriptor::Skinny => "skinny",
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Descriptor::Thin => "thin",
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Descriptor::Young => "young",
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Descriptor::Old => "old",
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Descriptor::LongLeg => "long-legged",
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Descriptor::LongHair => "long-haired",
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Descriptor::LongTail => "long-tailed",
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Descriptor::Huge => "huge",
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Descriptor::Massive => "massive",
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Descriptor::Scars => "battle-scarred",
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Descriptor::Handsome => "handsome",
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Descriptor::Pretty => "pretty",
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Descriptor::Beautiful => "beautiful",
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Descriptor::Mottled => "mottled",
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};
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write!(f, "{}", s)
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}
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}
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#[derive(Debug)]
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struct Descriptors {
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inner: Vec<Descriptor>,
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}
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impl Descriptors {
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fn gen(rng: &mut impl Rng, variant: PeltVariant) -> Self {
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let mut v = vec![];
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if let Some(first) = select_weighted(Descriptor::weights(variant), rng, 10) {
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let mut first = first;
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let mut next_weights;
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loop {
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next_weights = first.next_weights(variant);
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v.push(first);
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if let Some(next) = select_weighted(next_weights, rng, 10) {
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first = next;
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} else {
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break;
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}
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}
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}
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Descriptors { inner: v }
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}
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fn is_empty(&self) -> bool {
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self.inner.is_empty()
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}
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}
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impl fmt::Display for Descriptors {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let s = self
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.inner
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.iter()
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.map(|d| d.to_string())
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.collect::<Vec<_>>()
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.join(", ");
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write!(f, "{}", s)
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}
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}
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#[derive(Debug)]
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enum PostDescriptor {
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LongClaw,
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TwistedPaw,
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Eyes(EyeColor),
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Paw(PeltColor),
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Stripe(PeltColor),
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Spot(PeltColor),
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Splotch(PeltColor),
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}
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#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
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enum PostDescriptorVariant {
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LongClaw,
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TwistedPaw,
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Eyes,
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Paw,
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Stripe,
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Spot,
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Splotch,
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}
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impl PostDescriptorVariant {
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fn weights(pelt_variant: PeltVariant) -> Vec<(u8, PostDescriptorVariant)> {
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match pelt_variant {
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PeltVariant::Tabby => vec![
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(2, PostDescriptorVariant::LongClaw),
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(1, PostDescriptorVariant::TwistedPaw),
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(4, PostDescriptorVariant::Eyes),
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(3, PostDescriptorVariant::Paw),
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(3, PostDescriptorVariant::Stripe),
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],
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PeltVariant::Tortoiseshell => vec![
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(2, PostDescriptorVariant::LongClaw),
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(1, PostDescriptorVariant::TwistedPaw),
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(4, PostDescriptorVariant::Eyes),
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(3, PostDescriptorVariant::Paw),
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(2, PostDescriptorVariant::Splotch),
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],
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PeltVariant::Base => vec![
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(2, PostDescriptorVariant::LongClaw),
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(1, PostDescriptorVariant::TwistedPaw),
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(4, PostDescriptorVariant::Eyes),
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(3, PostDescriptorVariant::Paw),
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(2, PostDescriptorVariant::Spot),
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],
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}
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}
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fn into_post_descriptor(self, rng: &mut impl Rng) -> PostDescriptor {
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match self {
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PostDescriptorVariant::LongClaw => PostDescriptor::LongClaw,
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PostDescriptorVariant::TwistedPaw => PostDescriptor::TwistedPaw,
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PostDescriptorVariant::Eyes => PostDescriptor::Eyes(EyeColor::gen(rng)),
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PostDescriptorVariant::Paw => PostDescriptor::Paw(PeltColor::gen(rng, true)),
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PostDescriptorVariant::Stripe => PostDescriptor::Stripe(PeltColor::gen(rng, true)),
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PostDescriptorVariant::Spot => PostDescriptor::Spot(PeltColor::gen(rng, true)),
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PostDescriptorVariant::Splotch => PostDescriptor::Splotch(PeltColor::gen(rng, true)),
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}
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}
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}
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impl fmt::Display for PostDescriptor {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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PostDescriptor::LongClaw => write!(f, "long claws"),
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PostDescriptor::TwistedPaw => write!(f, "a twisted paw"),
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PostDescriptor::Eyes(color) => write!(f, "{} eyes", color),
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PostDescriptor::Paw(color) => write!(f, "{} paws", color),
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PostDescriptor::Stripe(color) => write!(f, "{} stripes", color),
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PostDescriptor::Spot(color) => write!(f, "{} spots", color),
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PostDescriptor::Splotch(color) => write!(f, "{} splotches", color),
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}
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}
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}
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#[derive(Debug)]
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struct PostDescriptors {
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inner: Vec<PostDescriptor>,
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}
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impl PostDescriptors {
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fn gen(rng: &mut impl Rng, pelt_variant: PeltVariant) -> Self {
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let mut v = vec![];
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let mut hs = HashSet::new();
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while let Some(variant) =
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select_weighted(PostDescriptorVariant::weights(pelt_variant), rng, 10)
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{
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let new = hs.insert(variant);
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if !new {
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break;
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}
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v.push(variant.into_post_descriptor(rng));
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}
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PostDescriptors { inner: v }
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}
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fn is_empty(&self) -> bool {
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self.inner.is_empty()
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}
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}
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impl fmt::Display for PostDescriptors {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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if self.inner.len() == 0 {
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return write!(f, "");
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}
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let joined = self
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.inner
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.iter()
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.map(|pd| pd.to_string())
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.collect::<Vec<_>>()
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.join(" and ");
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write!(f, "with {}", joined)
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}
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}
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#[derive(Debug)]
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enum ColorModifier {
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Dark,
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Light,
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Pale,
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}
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impl ColorModifier {
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fn gen(rng: &mut impl Rng) -> Option<Self> {
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select_weighted(
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vec![
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(1, ColorModifier::Dark),
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(1, ColorModifier::Light),
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(1, ColorModifier::Pale),
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],
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rng,
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9,
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)
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}
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}
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impl fmt::Display for ColorModifier {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let s = match self {
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ColorModifier::Dark => "dark",
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ColorModifier::Light => "light",
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ColorModifier::Pale => "pale",
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};
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write!(f, "{}", s)
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}
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}
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#[derive(Debug)]
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struct PeltColor {
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pelt_color: InnerPeltColor,
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modifier: Option<(bool, ColorModifier)>,
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solid: bool,
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}
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impl PeltColor {
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fn gen(rng: &mut impl Rng, can_be_solid: bool) -> Self {
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let pelt_color = InnerPeltColor::gen(rng);
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let solid = can_be_solid && pelt_color.is_solid() && rng.gen_bool(0.2);
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PeltColor {
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pelt_color,
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modifier: ColorModifier::gen(rng).map(|modifier| (rng.gen_bool(0.2), modifier)),
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solid,
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}
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}
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fn is_solid(&self) -> bool {
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self.solid
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}
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}
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impl fmt::Display for PeltColor {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match &self.modifier {
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Some((true, modifier)) => write!(f, "very {} {}", modifier, self.pelt_color),
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Some((false, modifier)) => write!(f, "{} {}", modifier, self.pelt_color),
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None if self.is_solid() => write!(f, "solid {}", self.pelt_color),
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None => write!(f, "{}", self.pelt_color),
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}
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}
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}
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#[derive(Clone, Copy, Debug, PartialEq)]
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enum InnerPeltColor {
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Black(Option<BlackSecondColor>),
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Gray(Option<GraySecondColor>),
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Silver,
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BlueGray,
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Ginger,
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Brown,
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ReddishBrown,
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GoldenBrown,
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DuskyBrown,
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White,
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}
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impl InnerPeltColor {
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fn gen(rng: &mut impl Rng) -> Self {
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select_weighted(
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vec![
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(1, InnerPeltColor::Black(Some(BlackSecondColor::Gray))),
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(1, InnerPeltColor::Black(Some(BlackSecondColor::White))),
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(2, InnerPeltColor::Black(None)),
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(1, InnerPeltColor::Gray(Some(GraySecondColor::White))),
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(2, InnerPeltColor::Gray(None)),
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(2, InnerPeltColor::Silver),
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(2, InnerPeltColor::BlueGray),
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(2, InnerPeltColor::Ginger),
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(2, InnerPeltColor::Brown),
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(2, InnerPeltColor::ReddishBrown),
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(2, InnerPeltColor::GoldenBrown),
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(2, InnerPeltColor::DuskyBrown),
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(2, InnerPeltColor::White),
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],
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rng,
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0,
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)
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.unwrap()
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}
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fn is_solid(&self) -> bool {
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match self {
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InnerPeltColor::Black(Some(_)) | InnerPeltColor::Gray(Some(_)) => false,
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_ => true,
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}
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}
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}
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impl fmt::Display for InnerPeltColor {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let s = match self {
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InnerPeltColor::Black(Some(BlackSecondColor::Gray)) => "black-and-gray",
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InnerPeltColor::Black(Some(BlackSecondColor::White)) => "black-and-white",
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InnerPeltColor::Black(None) => "black",
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InnerPeltColor::Gray(Some(GraySecondColor::White)) => "gray-and-white",
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InnerPeltColor::Gray(None) => "gray",
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InnerPeltColor::Silver => "silver",
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InnerPeltColor::BlueGray => "bluegray",
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InnerPeltColor::Ginger => "ginger",
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InnerPeltColor::Brown => "brown",
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InnerPeltColor::ReddishBrown => "reddish-brown",
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InnerPeltColor::GoldenBrown => "golden-brown",
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InnerPeltColor::DuskyBrown => "dusky-brown",
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InnerPeltColor::White => "white",
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};
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write!(f, "{}", s)
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}
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}
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#[derive(Clone, Copy, Debug, PartialEq)]
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enum BlackSecondColor {
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Gray,
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White,
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}
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#[derive(Clone, Copy, Debug, PartialEq)]
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enum GraySecondColor {
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White,
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}
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#[derive(Debug)]
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enum Pelt {
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Tortoiseshell(Option<ColorModifier>, Option<Gembder>),
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Tabby(Option<PeltColor>, Option<Gembder>),
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Base(PeltColor, Gembder),
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}
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impl Pelt {
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fn gen(rng: &mut impl Rng) -> Pelt {
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select_weighted(PeltVariant::weights(), rng, 0)
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.unwrap()
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.into_pelt(rng)
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}
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fn as_variant(&self) -> PeltVariant {
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match self {
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Pelt::Tortoiseshell(_, _) => PeltVariant::Tortoiseshell,
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Pelt::Tabby(_, _) => PeltVariant::Tabby,
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Pelt::Base(_, _) => PeltVariant::Base,
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}
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}
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}
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impl fmt::Display for Pelt {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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Pelt::Tortoiseshell(modifier, gembder) => {
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if let Some(m) = modifier {
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write!(f, "{} ", m)?;
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}
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write!(f, "tortoiseshell")?;
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if let Some(g) = gembder {
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write!(f, " {}", g)?;
|
|
}
|
|
Ok(())
|
|
}
|
|
Pelt::Tabby(color, gembder) => {
|
|
if let Some(c) = color {
|
|
write!(f, "{} ", c)?;
|
|
}
|
|
write!(f, "tabby")?;
|
|
if let Some(g) = gembder {
|
|
write!(f, " {}", g)?;
|
|
}
|
|
Ok(())
|
|
}
|
|
Pelt::Base(color, gembder) => write!(f, "{} {}", color, gembder),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
|
|
enum PeltVariant {
|
|
Tortoiseshell,
|
|
Tabby,
|
|
Base,
|
|
}
|
|
|
|
impl PeltVariant {
|
|
fn weights() -> Vec<(u8, PeltVariant)> {
|
|
vec![
|
|
(1, PeltVariant::Tortoiseshell),
|
|
(3, PeltVariant::Tabby),
|
|
(5, PeltVariant::Base),
|
|
]
|
|
}
|
|
|
|
fn into_pelt(self, rng: &mut impl Rng) -> Pelt {
|
|
let has_color = rng.gen_bool(0.4);
|
|
|
|
match self {
|
|
PeltVariant::Tortoiseshell => {
|
|
Pelt::Tortoiseshell(ColorModifier::gen(rng), Gembder::gen_skewed(rng))
|
|
}
|
|
PeltVariant::Tabby if has_color => {
|
|
Pelt::Tabby(Some(PeltColor::gen(rng, false)), Gembder::gen(rng))
|
|
}
|
|
PeltVariant::Tabby => Pelt::Tabby(None, Gembder::gen(rng)),
|
|
PeltVariant::Base => Pelt::Base(PeltColor::gen(rng, true), Gembder::gen_always(rng)),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
enum Gembder {
|
|
Queen,
|
|
SheCat,
|
|
Tom,
|
|
}
|
|
|
|
impl Gembder {
|
|
fn weights_skewed() -> Vec<(u8, Gembder)> {
|
|
vec![
|
|
(1, Gembder::Tom),
|
|
(80, Gembder::SheCat),
|
|
(20, Gembder::Queen),
|
|
]
|
|
}
|
|
|
|
fn weights() -> Vec<(u8, Gembder)> {
|
|
vec![(5, Gembder::Tom), (3, Gembder::SheCat), (2, Gembder::Queen)]
|
|
}
|
|
|
|
fn gen(rng: &mut impl Rng) -> Option<Self> {
|
|
select_weighted(Self::weights(), rng, 10)
|
|
}
|
|
|
|
fn gen_skewed(rng: &mut impl Rng) -> Option<Self> {
|
|
select_weighted(Self::weights_skewed(), rng, 10)
|
|
}
|
|
|
|
fn gen_always(rng: &mut impl Rng) -> Self {
|
|
select_weighted(Self::weights(), rng, 0).unwrap()
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for Gembder {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
let s = match self {
|
|
Gembder::Queen => "queen",
|
|
Gembder::SheCat => "she-cat",
|
|
Gembder::Tom => "tom",
|
|
};
|
|
|
|
write!(f, "{}", s)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct EyeColor {
|
|
eye_color: InnerEyeColor,
|
|
modifier: Option<ColorModifier>,
|
|
}
|
|
|
|
impl EyeColor {
|
|
fn gen(rng: &mut impl Rng) -> EyeColor {
|
|
EyeColor {
|
|
eye_color: InnerEyeColor::gen(rng),
|
|
modifier: ColorModifier::gen(rng),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for EyeColor {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
match &self.modifier {
|
|
Some(modifier) => write!(f, "{} {}", modifier, self.eye_color),
|
|
None => write!(f, "{}", self.eye_color),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
enum InnerEyeColor {
|
|
Blue,
|
|
Amber,
|
|
Green,
|
|
Brown,
|
|
}
|
|
|
|
impl InnerEyeColor {
|
|
fn weights() -> Vec<(u8, InnerEyeColor)> {
|
|
vec![
|
|
(1, InnerEyeColor::Blue),
|
|
(1, InnerEyeColor::Amber),
|
|
(1, InnerEyeColor::Green),
|
|
(3, InnerEyeColor::Brown),
|
|
]
|
|
}
|
|
|
|
fn gen(rng: &mut impl Rng) -> InnerEyeColor {
|
|
select_weighted(Self::weights(), rng, 0).unwrap()
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for InnerEyeColor {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
let s = match self {
|
|
InnerEyeColor::Blue => "blue",
|
|
InnerEyeColor::Amber => "amber",
|
|
InnerEyeColor::Green => "green",
|
|
InnerEyeColor::Brown => "brown",
|
|
};
|
|
|
|
write!(f, "{}", s)
|
|
}
|
|
}
|
|
|
|
struct Builder {
|
|
descriptors: Descriptors,
|
|
pelt: Pelt,
|
|
post_descriptors: PostDescriptors,
|
|
}
|
|
|
|
impl Builder {
|
|
fn gen(rng: &mut impl Rng) -> Self {
|
|
let pelt = Pelt::gen(rng);
|
|
let variant = pelt.as_variant();
|
|
|
|
Builder {
|
|
descriptors: Descriptors::gen(rng, variant),
|
|
pelt,
|
|
post_descriptors: PostDescriptors::gen(rng, variant),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for Builder {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
if !self.descriptors.is_empty() {
|
|
write!(f, "{} ", self.descriptors)?;
|
|
}
|
|
|
|
write!(f, "{}", self.pelt)?;
|
|
|
|
if !self.post_descriptors.is_empty() {
|
|
write!(f, " {}", self.post_descriptors)?;
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
pub(crate) fn run(rng: &mut impl Rng) -> String {
|
|
Builder::gen(rng).to_string()
|
|
}
|