From 145a770cbd46f67b643347a21709389d113cd5ce Mon Sep 17 00:00:00 2001
From: Liam <admin@fascinated.cc>
Date: Tue, 21 Mar 2023 15:50:02 +0000
Subject: [PATCH] hopefully fix broken pp count when starting a song or your
 acc is too high

---
 src/curve/BeatLeaderCurve.js | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/curve/BeatLeaderCurve.js b/src/curve/BeatLeaderCurve.js
index 821e731..e12553e 100644
--- a/src/curve/BeatLeaderCurve.js
+++ b/src/curve/BeatLeaderCurve.js
@@ -1,3 +1,11 @@
+/**
+ * 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
+ *
+ * @param {Number} acc the accuracy of the score
+ * @param {Number} stars the ranked star count
+ * @returns
+ */
 function curve(acc, stars) {
 	var l = 1 - (0.03 * (stars - 3.0)) / 11.0;
 	var a = 0.96 * l;
@@ -5,10 +13,31 @@ function curve(acc, stars) {
 	return Math.pow(Math.log10(l / (l - acc)) / Math.log10(l / (l - a)), f);
 }
 
+/**
+ * Gets the raw pp from the given score
+ *
+ * @param {Number} acc the accuracy of the score
+ * @param {Number} stars the ranked star count
+ * @returns
+ */
 export function getBeatLeaderPP(acc, stars) {
 	if (stars === undefined || acc === undefined) {
 		return undefined;
 	}
 	const pp = curve(acc, stars - 0.5) * (stars + 0.5) * 42;
-	return Number.isNaN(pp) ? undefined : pp;
+
+	const isNegativeAcc = acc < 0;
+	if (isNegativeAcc) {
+		acc *= -1;
+	}
+
+	if (pp == NaN || pp == Infinity) {
+		return 1024;
+	}
+
+	if (isNegativeAcc) {
+		pp *= -1;
+	}
+
+	return pp;
 }