Updated BL curve

2023-03-26 20:39:55 +01:00 · 2023-03-26 20:39:55 +01:00 · 024f553586
commit 024f553586
parent 4c32f504a4
4 changed files with 154 additions and 40 deletions
--- a/src/curve/BeatLeaderCurve.js
+++ b/src/curve/BeatLeaderCurve.js
@ -1,53 +1,121 @@
 import Utils from "../utils/utils";

 /**
- * I'm not even sure what this shit does, ask BL
- * @see https://github.com/BeatLeader/beatleader-server/blob/16123a792b1a837faf6287e5bcd58e2e06e6a6f0/Utils/ReplayUtils.cs for more info
+ * The pp curve of this leaderboard
+ */
+const ppCurve = [
+	[1.0, 7.424],
+	[0.999, 6.241],
+	[0.9975, 5.158],
+	[0.995, 4.01],
+	[0.9925, 3.241],
+	[0.99, 2.7],
+	[0.9875, 2.303],
+	[0.985, 2.007],
+	[0.9825, 1.786],
+	[0.98, 1.618],
+	[0.9775, 1.49],
+	[0.975, 1.392],
+	[0.9725, 1.315],
+	[0.97, 1.256],
+	[0.965, 1.167],
+	[0.96, 1.101],
+	[0.955, 1.047],
+	[0.95, 1.0],
+	[0.94, 0.919],
+	[0.93, 0.847],
+	[0.92, 0.786],
+	[0.91, 0.734],
+	[0.9, 0.692],
+	[0.875, 0.606],
+	[0.85, 0.537],
+	[0.825, 0.48],
+	[0.8, 0.429],
+	[0.75, 0.345],
+	[0.7, 0.286],
+	[0.65, 0.246],
+	[0.6, 0.217],
+	[0.0, 0.0],
+];
+
+/**
+ * https://github.com/BeatLeader/beatleader-server/blob/master/Utils/ReplayUtils.cs#L45
+ * funky shit from ^
 *
- * @param {Number} acc the accuracy of the score
- * @param {Number} stars the ranked star count
+ * @param {Number} accuracy the accuracy of the score
+ * @param {Number} accRating the acc rating of the difficulty
+ * @param {Number} passRating the pass rating of the difficulty
+ * @param {Number} techRating the tech rating of the difficulty
 * @returns
 */
-function curve(acc, stars) {
-	var l = 1 - (0.03 * (stars - 3.0)) / 11.0;
-	var a = 0.96 * l;
-	var f = 1.2 - (0.6 * stars) / 14.0;
-	return Math.pow(Math.log10(l / (l - acc)) / Math.log10(l / (l - a)), f);
+export function getBeatLeaderPP(accuracy, accRating, passRating, techRating) {
+	const modifierBonus = Utils.calculateModifierBonus();
+	const ppValues = getPP(
+		accuracy,
+		accRating,
+		passRating * modifierBonus,
+		techRating * modifierBonus
+	);
+	const pp = inflate(ppValues.passPP + ppValues.accPP + ppValues.techPP);
+	return isNaN(pp) ? 1024 : pp;
 }

 /**
- * Gets the raw pp from the given score
+ * https://github.com/BeatLeader/beatleader-server/blob/master/Utils/ReplayUtils.cs#L45
+ * funky shit from ^
 *
- * @param {Number} acc the accuracy of the score
- * @param {Number} stars the ranked star count
+ * @param {Number} accuracy the accuracy of the score
+ * @param {Number} accRating the acc rating of the difficulty
+ * @param {Number} passRating the pass rating of the difficulty
+ * @param {Number} techRating the tech rating of the difficulty
 * @returns
 */
-export function getBeatLeaderPP(acc, stars) {
-	if (stars === undefined || acc === undefined) {
-		return undefined;
+function getPP(accuracy, accRating, passRating, techRating) {
+	let passPP = 15.2 * Math.exp(Math.pow(passRating, 1 / 2.62)) - 30;
+	if (isNaN(passPP) || passPP == Infinity) {
+		passPP = 0;
 	}
-	const modifierBonus = Utils.calculateModifierBonus();
-	let rawPP = curve(acc, stars - 0.5) * (stars + 0.5) * 42;
-	let fullPP =
-		curve(acc, stars * modifierBonus - 0.5) *
-		(stars * modifierBonus + 0.5) *
-		42;
+	let accPP = curve(accuracy) * accRating * 34;
+	let techPP = Math.exp(1.9 * accuracy) * techRating;

-	const isNegativeAcc = acc < 0;
-	if (isNegativeAcc) {
-		acc *= -1;
-	}
-
-	if (isNaN(rawPP) || rawPP == Infinity) {
-		return 1024;
-	}
-	if (isNaN(fullPP) || fullPP == Infinity) {
-		return 1024;
-	}
-
-	if (isNegativeAcc) {
-		fullPP *= -1;
-	}
-
-	return fullPP;
+	return {
+		passPP: passPP,
+		accPP: accPP,
+		techPP: techPP,
+	};
+}
+
+/**
+ * https://github.com/BeatLeader/beatleader-server/blob/master/Utils/ReplayUtils.cs#L45
+ * funky shit from ^
+ *
+ * @param {Number} acc the accuracy of the score
+ * @returns something
+ */
+function curve(acc) {
+	let i = 0;
+	for (; i < ppCurve.length; i++) {
+		if (ppCurve[i][0] <= acc) {
+			break;
+		}
+	}
+
+	if (i == 0) {
+		i = 1;
+	}
+
+	const middle_dis =
+		(acc - ppCurve[i - 1][0]) / (ppCurve[i][0] - ppCurve[i - 1][0]);
+	return ppCurve[i - 1][1] + middle_dis * (ppCurve[i][1] - ppCurve[i - 1][1]);
+}
+
+/**
+ * https://github.com/BeatLeader/beatleader-server/blob/master/Utils/ReplayUtils.cs#L77
+ * funky shit from ^
+ *
+ * @param {Number} peepee
+ * @returns funny number, idk
+ */
+function inflate(peepee) {
+	return (650 * Math.pow(peepee, 1.3)) / Math.pow(650, 1.3);
 }
--- a/src/pages/api/beatleader/data.js
+++ b/src/pages/api/beatleader/data.js
@ -33,6 +33,9 @@ export default async function handler(req, res) {
 			difficulty: difficulty,
 			stars: json.stars,
 			modifiers: json.modifiers,
+			passRating: json.passRating,
+			accRating: json.accRating,
+			techRating: json.techRating,
 		});
 	}

@ -54,6 +57,10 @@ export default async function handler(req, res) {
 	const json = reesponse.data;
 	let starCount = undefined;
 	let modifiers = undefined;
+	let passRating = undefined;
+	let accRating = undefined;
+	let techRating = undefined;
+
 	for (const diff of json.difficulties) {
 		if (
 			diff.difficultyName === difficulty &&
@ -61,6 +68,9 @@ export default async function handler(req, res) {
 		) {
 			starCount = diff.stars;
 			modifiers = diff.modifierValues;
+			passRating = diff.passRating;
+			accRating = diff.accRating;
+			techRating = diff.techRating;
 		}
 	}
 	if (starCount === undefined) {
@ -74,6 +84,9 @@ export default async function handler(req, res) {
 		JSON.stringify({
 			stars: starCount,
 			modifiers: modifiers,
+			passRating: passRating,
+			accRating: accRating,
+			techRating: techRating,
 		})
 	);
 	console.log(
@ -87,5 +100,8 @@ export default async function handler(req, res) {
 		difficulty: difficulty,
 		stars: starCount,
 		modifiers: modifiers,
+		passRating: passRating,
+		accRating: accRating,
+		techRating: techRating,
 	});
 }
--- a/src/store/songDataStore.ts
+++ b/src/store/songDataStore.ts
@ -20,6 +20,9 @@ interface SongDataState {
 		beatleader: {
 			stars: Number | undefined;
 			modifiers: Object;
+			passRating: number | undefined;
+			accRating: number | undefined;
+			techRating: number | undefined;
 		};
 	};
 	mapArt: string;
@ -82,6 +85,9 @@ export const useSongDataStore = create<SongDataState>()((set) => ({
 		beatleader: {
 			stars: 0,
 			modifiers: {},
+			passRating: undefined,
+			accRating: undefined,
+			techRating: undefined,
 		},
 	},
 	mapArt: "",
@ -134,6 +140,16 @@ export const useSongDataStore = create<SongDataState>()((set) => ({
 		}
 		const { bsr, mapArt } = mapDataresponse.data.data;

+		console.log({
+			beatleader: {
+				stars: beatLeaderLeaderboardData.stars,
+				modifiers: beatLeaderLeaderboardData.modifiers,
+				passRating: beatLeaderLeaderboardData.passRating,
+				accRating: beatLeaderLeaderboardData.accRating,
+				techRating: beatLeaderLeaderboardData.techRating,
+			},
+		});
+
 		set({
 			isLoading: false,
 			hasError: hasError,
@ -141,6 +157,9 @@ export const useSongDataStore = create<SongDataState>()((set) => ({
 				beatleader: {
 					stars: beatLeaderLeaderboardData.stars,
 					modifiers: beatLeaderLeaderboardData.modifiers,
+					passRating: beatLeaderLeaderboardData.passRating,
+					accRating: beatLeaderLeaderboardData.accRating,
+					techRating: beatLeaderLeaderboardData.techRating,
 				},
 				scoresaber: {
 					stars: scoreSaberLeaderboardData.stars,
@ -244,6 +263,9 @@ export const useSongDataStore = create<SongDataState>()((set) => ({
 				beatleader: {
 					stars: undefined,
 					modifiers: {},
+					passRating: undefined,
+					accRating: undefined,
+					techRating: undefined,
 				},
 			},
 			mapArt: "",
--- a/src/utils/utils.js
+++ b/src/utils/utils.js
@ -37,7 +37,15 @@ export default class Utils {
 			return undefined;
 		}
 		if (type === "BeatLeader") {
-			return getBeatLeaderPP(acc, stars);
+			const leaderboardData =
+				useSongDataStore.getState().mapLeaderboardData.beatleader;
+
+			return getBeatLeaderPP(
+				acc,
+				leaderboardData.accRating,
+				leaderboardData.passRating,
+				leaderboardData.techRating
+			);
 		}
 		if (type === "ScoreSaber") {
 			return getScoreSaberPP(acc, stars);
@ -48,7 +56,7 @@ export default class Utils {
 	static calculateModifierBonus() {
 		const songMods = useSongDataStore.getState().songModifiers;
 		const modifierMulipliers =
-			useSongDataStore.getState().mapLeaderboardData.modifiers;
+			useSongDataStore.getState().mapLeaderboardData.beatleader.modifiers;
 		let bonus = 1;

 		// No Fail