feat: port pp update

Cargo.toml

@@ -17,8 +17,8 @@ sync = []
 tracing = ["rosu-map/tracing"]
 
 [dependencies]
-rosu-map = { version = "0.1.1" }
-rosu-mods = { version = "0.1.0" }
+rosu-map = { version = "0.2.0" }
+rosu-mods = { version = "0.2.0" }
 
 [dev-dependencies]
 proptest = "1.4.0"

README.md

@@ -11,14 +11,10 @@ with emphasis on a precise translation to Rust for the most [accurate results](#
 while also providing a significant [boost in performance](#speed).
 
 Last commits of the ported code:
-  - [osu!lazer] : `7342fb7f51b34533a42bffda89c3d6c569cc69ce` (2022-10-11)
-  - [osu!tools] : `146d5916937161ef65906aa97f85d367035f3712` (2022-10-08)
-
-News posts of the latest gamemode updates:
-  - osu: <https://osu.ppy.sh/home/news/2022-09-30-changes-to-osu-sr-and-pp>
-  - taiko: <https://osu.ppy.sh/home/news/2022-09-28-changes-to-osu-taiko-sr-and-pp>
-  - catch: <https://osu.ppy.sh/home/news/2020-05-14-osucatch-scoring-updates>
-  - mania: <https://osu.ppy.sh/home/news/2022-10-09-changes-to-osu-mania-sr-and-pp>
+  - [osu!lazer] : `8bd65d9938a10fc42e6409501b0282f0fa4a25ef` (2024-11-08)
+  - [osu!tools] : `89b8f3b1c2e4e5674004eac4723120e7d3aef997` (2024-11-03)
+
+News posts of the latest updates: <https://osu.ppy.sh/home/news/2024-10-28-performance-points-star-rating-updates>
 
 ### Usage
 

proptest-regressions/osu/performance/mod.txt

@@ -12,3 +12,6 @@ cc e5a861f6c665dd09e46423e71d7596edf98897d4130d3144aa6f5be580f31a8b # shrinks to
 cc 2cd5c105bcca0b4255afccc15bee3894b06bd20ac3f5c5d3b785f7e0ef99df46 # shrinks to acc = 0.0, combo = None, n300 = Some(0), n100 = None, n50 = Some(479), n_misses = Some(123), best_case = false
 cc 2cba8a76243aac7233e9207a3162aaa1f08f933c0cb3a2ac79580ece3a7329fc # shrinks to acc = 0.0, n300 = Some(0), n100 = Some(0), n50 = Some(0), n_misses = None, best_case = false
 cc e93787ad8a849ec6d05750c8d09494b8f5a9fa785f843d9a8e2db986c0b32645 # shrinks to acc = 0.0, n300 = None, n100 = None, n50 = None, n_misses = Some(602), best_case = false
+cc a53cb48861126aa63be54606f9a770db5eae95242c9a9d75cf1fd101cfb21729 # shrinks to lazer = true, acc = 0.5679586776392227, n_slider_ticks = None, n_slider_ends = None, n300 = None, n100 = None, n50 = Some(0), n_misses = None, best_case = false
+cc cacb94cb2a61cf05e7083e332b378290a6267a499bf30821228bc0ae4dfe46f6 # shrinks to lazer = true, acc = 0.5270982297689498, n_slider_ticks = None, n_slider_ends = None, n300 = Some(70), n100 = None, n50 = None, n_misses = None, best_case = false
+cc 5679a686382f641f1fa3407a6e19e1caa0adff27e42c397778a2d178361719a3 # shrinks to lazer = true, classic = false, acc = 0.4911232243285752, large_tick_hits = None, slider_end_hits = Some(0), n300 = None, n100 = None, n50 = None, n_misses = None, best_case = false

src/any/difficulty/inspect.rs

@@ -27,6 +27,11 @@ pub struct InspectDifficulty {
     ///
     /// Only relevant for osu!catch.
     pub hardrock_offsets: Option<bool>,
+    /// Whether the calculated attributes belong to an osu!lazer or osu!stable
+    /// score.
+    ///
+    /// Defaults to `true`.
+    pub lazer: Option<bool>,
 }
 
 impl InspectDifficulty {
@@ -41,6 +46,7 @@ impl InspectDifficulty {
             hp,
             od,
             hardrock_offsets,
+            lazer,
         } = self;
 
         let mut difficulty = Difficulty::new().mods(mods);
@@ -73,6 +79,10 @@ impl InspectDifficulty {
             difficulty = difficulty.hardrock_offsets(hardrock_offsets);
         }
 
+        if let Some(lazer) = lazer {
+            difficulty = difficulty.lazer(lazer);
+        }
+
         difficulty
     }
 }

src/any/difficulty/mod.rs

@@ -1,7 +1,7 @@
 use std::{
     borrow::Cow,
     fmt::{Debug, Formatter, Result as FmtResult},
-    num::NonZeroU32,
+    num::NonZeroU64,
 };
 
 use rosu_map::section::general::GameMode;
@@ -51,17 +51,16 @@ pub struct Difficulty {
     /// Clock rate will be clamped internally between 0.01 and 100.0.
     ///
     /// Since its minimum value is 0.01, its bits are never zero.
-    /// Additionally, values between 0.01 and 100 are represented sufficiently
-    /// precise with 32 bits.
     ///
     /// This allows for an optimization to reduce the struct size by storing its
-    /// bits as a [`NonZeroU32`].
-    clock_rate: Option<NonZeroU32>,
+    /// bits as a [`NonZeroU64`].
+    clock_rate: Option<NonZeroU64>,
     ar: Option<ModsDependent>,
     cs: Option<ModsDependent>,
     hp: Option<ModsDependent>,
     od: Option<ModsDependent>,
     hardrock_offsets: Option<bool>,
+    lazer: Option<bool>,
 }
 
 /// Wrapper for beatmap attributes in [`Difficulty`].
@@ -97,6 +96,7 @@ impl Difficulty {
             hp: None,
             od: None,
             hardrock_offsets: None,
+            lazer: None,
         }
     }
 
@@ -120,17 +120,19 @@ impl Difficulty {
             hp,
             od,
             hardrock_offsets,
+            lazer,
         } = self;
 
         InspectDifficulty {
             mods,
             passed_objects,
-            clock_rate: clock_rate.map(non_zero_u32_to_f32).map(f64::from),
+            clock_rate: clock_rate.map(non_zero_u64_to_f64),
             ar,
             cs,
             hp,
             od,
             hardrock_offsets,
+            lazer,
         }
     }
 
@@ -167,11 +169,11 @@ impl Difficulty {
     /// | :-----: | :-----: |
     /// | 0.01    | 100     |
     pub fn clock_rate(self, clock_rate: f64) -> Self {
-        let clock_rate = (clock_rate as f32).clamp(0.01, 100.0).to_bits();
+        let clock_rate = clock_rate.clamp(0.01, 100.0).to_bits();
 
         // SAFETY: The minimum value is 0.01 so its bits can never be fully
         // zero.
-        let non_zero = unsafe { NonZeroU32::new_unchecked(clock_rate) };
+        let non_zero = unsafe { NonZeroU64::new_unchecked(clock_rate) };
 
         Self {
             clock_rate: Some(non_zero),
@@ -268,6 +270,16 @@ impl Difficulty {
         self
     }
 
+    /// Whether the calculated attributes belong to an osu!lazer or osu!stable
+    /// score.
+    ///
+    /// Defaults to `true`.
+    pub const fn lazer(mut self, lazer: bool) -> Self {
+        self.lazer = Some(lazer);
+
+        self
+    }
+
     /// Perform the difficulty calculation.
     pub fn calculate(&self, map: &Beatmap) -> DifficultyAttributes {
         let map = Cow::Borrowed(map);
@@ -316,11 +328,8 @@ impl Difficulty {
     }
 
     pub(crate) fn get_clock_rate(&self) -> f64 {
-        let clock_rate = self
-            .clock_rate
-            .map_or(self.mods.clock_rate(), non_zero_u32_to_f32);
-
-        f64::from(clock_rate)
+        self.clock_rate
+            .map_or(self.mods.clock_rate(), non_zero_u64_to_f64)
     }
 
     pub(crate) fn get_passed_objects(&self) -> usize {
@@ -347,10 +356,14 @@ impl Difficulty {
         self.hardrock_offsets
             .unwrap_or_else(|| self.mods.hardrock_offsets())
     }
+
+    pub(crate) fn get_lazer(&self) -> bool {
+        self.lazer.unwrap_or(true)
+    }
 }
 
-fn non_zero_u32_to_f32(n: NonZeroU32) -> f32 {
-    f32::from_bits(n.get())
+fn non_zero_u64_to_f64(n: NonZeroU64) -> f64 {
+    f64::from_bits(n.get())
 }
 
 impl Debug for Difficulty {
@@ -364,17 +377,19 @@ impl Debug for Difficulty {
             hp,
             od,
             hardrock_offsets,
+            lazer,
         } = self;
 
         f.debug_struct("Difficulty")
             .field("mods", mods)
             .field("passed_objects", passed_objects)
-            .field("clock_rate", &clock_rate.map(non_zero_u32_to_f32))
+            .field("clock_rate", &clock_rate.map(non_zero_u64_to_f64))
             .field("ar", ar)
             .field("cs", cs)
             .field("hp", hp)
             .field("od", od)
             .field("hardrock_offsets", hardrock_offsets)
+            .field("lazer", lazer)
             .finish()
     }
 }

src/any/performance/mod.rs

@@ -27,8 +27,8 @@ impl<'map> Performance<'map> {
     ///
     /// The argument `map_or_attrs` must be either
     /// - previously calculated attributes ([`DifficultyAttributes`],
-    /// [`PerformanceAttributes`], or mode-specific attributes like
-    /// [`TaikoDifficultyAttributes`], [`ManiaPerformanceAttributes`], ...)
+    ///   [`PerformanceAttributes`], or mode-specific attributes like
+    ///   [`TaikoDifficultyAttributes`], [`ManiaPerformanceAttributes`], ...)
     /// - a beatmap ([`Beatmap`] or [`Converted<'_, M>`])
     ///
     /// If a map is given, difficulty attributes will need to be calculated
@@ -299,6 +299,55 @@ impl<'map> Performance<'map> {
         }
     }
 
+    /// Whether the calculated attributes belong to an osu!lazer or osu!stable
+    /// score.
+    ///
+    /// Defaults to `true`.
+    ///
+    /// This affects internal accuracy calculation because lazer considers
+    /// slider heads for accuracy whereas stable does not.
+    ///
+    /// Only relevant for osu!standard and osu!mania.
+    pub fn lazer(self, lazer: bool) -> Self {
+        match self {
+            Self::Osu(o) => Self::Osu(o.lazer(lazer)),
+            Self::Taiko(_) | Self::Catch(_) => self,
+            Self::Mania(m) => Self::Mania(m.lazer(lazer)),
+        }
+    }
+
+    /// Specify the amount of "large tick" hits.
+    ///
+    /// Only relevant for osu!standard.
+    ///
+    /// The meaning depends on the kind of score:
+    /// - if set on osu!stable, this value is irrelevant and can be `0`
+    /// - if set on osu!lazer *without* `CL`, this value is the amount of hit
+    ///   slider ticks and repeats
+    /// - if set on osu!lazer *with* `CL`, this value is the amount of hit
+    ///   slider heads, ticks, and repeats
+    pub fn large_tick_hits(self, large_tick_hits: u32) -> Self {
+        if let Self::Osu(osu) = self {
+            Self::Osu(osu.large_tick_hits(large_tick_hits))
+        } else {
+            self
+        }
+    }
+
+    /// Specify the amount of hit slider ends.
+    ///
+    /// Only relevant for osu!standard.
+    ///
+    /// osu! calls this value "slider tail hits" without the classic
+    /// mod and "small tick hits" with the classic mod.
+    pub fn n_slider_ends(self, n_slider_ends: u32) -> Self {
+        if let Self::Osu(osu) = self {
+            Self::Osu(osu.n_slider_ends(n_slider_ends))
+        } else {
+            self
+        }
+    }
+
     /// Specify the amount of 300s of a play.
     pub fn n300(self, n300: u32) -> Self {
         match self {

src/any/score_state.rs

@@ -15,6 +15,19 @@ pub struct ScoreState {
     ///
     /// Irrelevant for osu!mania.
     pub max_combo: u32,
+    /// "Large tick" hits for osu!standard.
+    ///
+    /// The meaning depends on the kind of score:
+    /// - if set on osu!stable, this field is irrelevant and can be `0`
+    /// - if set on osu!lazer *without* `CL`, this field is the amount of hit
+    ///   slider ticks and repeats
+    /// - if set on osu!lazer *with* `CL`, this field is the amount of hit
+    ///   slider heads, ticks, and repeats
+    pub osu_large_tick_hits: u32,
+    /// Amount of successfully hit slider ends.
+    ///
+    /// Only relevant for osu!standard in lazer.
+    pub slider_end_hits: u32,
     /// Amount of current gekis (n320 for osu!mania).
     pub n_geki: u32,
     /// Amount of current katus (tiny droplet misses for osu!catch / n200 for
@@ -35,6 +48,8 @@ impl ScoreState {
     pub const fn new() -> Self {
         Self {
             max_combo: 0,
+            osu_large_tick_hits: 0,
+            slider_end_hits: 0,
             n_geki: 0,
             n_katu: 0,
             n300: 0,
@@ -66,6 +81,8 @@ impl From<ScoreState> for OsuScoreState {
     fn from(state: ScoreState) -> Self {
         Self {
             max_combo: state.max_combo,
+            large_tick_hits: state.osu_large_tick_hits,
+            slider_end_hits: state.slider_end_hits,
             n300: state.n300,
             n100: state.n100,
             n50: state.n50,
@@ -115,6 +132,8 @@ impl From<OsuScoreState> for ScoreState {
     fn from(state: OsuScoreState) -> Self {
         Self {
             max_combo: state.max_combo,
+            osu_large_tick_hits: state.large_tick_hits,
+            slider_end_hits: state.slider_end_hits,
             n_geki: 0,
             n_katu: 0,
             n300: state.n300,
@@ -129,6 +148,8 @@ impl From<TaikoScoreState> for ScoreState {
     fn from(state: TaikoScoreState) -> Self {
         Self {
             max_combo: state.max_combo,
+            osu_large_tick_hits: 0,
+            slider_end_hits: 0,
             n_geki: 0,
             n_katu: 0,
             n300: state.n300,
@@ -143,6 +164,8 @@ impl From<CatchScoreState> for ScoreState {
     fn from(state: CatchScoreState) -> Self {
         Self {
             max_combo: state.max_combo,
+            osu_large_tick_hits: 0,
+            slider_end_hits: 0,
             n_geki: 0,
             n_katu: state.tiny_droplet_misses,
             n300: state.fruits,
@@ -157,6 +180,8 @@ impl From<ManiaScoreState> for ScoreState {
     fn from(state: ManiaScoreState) -> Self {
         Self {
             max_combo: 0,
+            osu_large_tick_hits: 0,
+            slider_end_hits: 0,
             n_geki: state.n320,
             n_katu: state.n200,
             n300: state.n300,

src/catch/catcher.rs

@@ -15,6 +15,8 @@ impl Catcher {
     }
 
     fn calculate_scale(cs: f32) -> f32 {
-        1.0 - 0.7 * (cs - 5.0) / 5.0
+        ((f64::from(1.0_f32) - f64::from(0.7_f32) * ((f64::from(cs) - 5.0) / 5.0)) as f32 / 2.0
+            * 1.0)
+            * 2.0
     }
 }