rosu-pp 4.0.1

Difficulty and performance calculation for osu!
Documentation 
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use crate::{
    Beatmap, Difficulty,
    any::difficulty::skills::StrainSkill,
    model::mode::ConvertError,
    taiko::{convert::prepare_map, difficulty::DifficultyValues},
};

use super::difficulty::TaikoSkills;

/// The result of calculating the strains on a osu!taiko map.
///
/// Suitable to plot the difficulty of a map over time.
#[derive(Clone, Debug, PartialEq)]
pub struct TaikoStrains {
    /// Strain peaks of the color skill.
    pub color: Vec<f64>,
    /// Strain peaks of the reading skill.
    pub reading: Vec<f64>,
    /// Strain peaks of the rhythm skill.
    pub rhythm: Vec<f64>,
    /// Strain peaks of the stamina skill.
    pub stamina: Vec<f64>,
    /// Strain peaks of the single color stamina skill.
    pub single_color_stamina: Vec<f64>,
}

impl TaikoStrains {
    /// Time between two strains in ms.
    pub const SECTION_LEN: f64 = 400.0;
}

pub fn strains(difficulty: &Difficulty, map: &Beatmap) -> Result<TaikoStrains, ConvertError> {
    let map = prepare_map(difficulty, map)?;

    let great_hit_window = map
        .attributes()
        .difficulty(difficulty)
        .build()
        .hit_windows()
        .od_great
        .unwrap_or(0.0);

    let values = DifficultyValues::calculate(difficulty, &map, great_hit_window);

    let TaikoSkills {
        rhythm,
        reading,
        color,
        stamina,
        single_color_stamina,
    } = values.skills;

    Ok(TaikoStrains {
        color: color.into_current_strain_peaks(),
        reading: reading.into_current_strain_peaks(),
        rhythm: rhythm.into_current_strain_peaks(),
        stamina: stamina.into_current_strain_peaks(),
        single_color_stamina: single_color_stamina.into_current_strain_peaks(),
    })
}