From cd46ca31f9af73541e05f515018847a588b52775 Mon Sep 17 00:00:00 2001
From: OliBomby <olivierschipper@gmail.com>
Date: Wed, 7 Dec 2022 09:51:22 +0100
Subject: [PATCH 1/2] Add segmend end completions to SliderPath

---
 osu.Game/Rulesets/Objects/SliderPath.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/osu.Game/Rulesets/Objects/SliderPath.cs b/osu.Game/Rulesets/Objects/SliderPath.cs
index ddc121eb5b..46c41f0b5a 100644
--- a/osu.Game/Rulesets/Objects/SliderPath.cs
+++ b/osu.Game/Rulesets/Objects/SliderPath.cs
@@ -41,6 +41,7 @@ namespace osu.Game.Rulesets.Objects
 
         private readonly List<Vector2> calculatedPath = new List<Vector2>();
         private readonly List<double> cumulativeLength = new List<double>();
+        private readonly List<int> segmentEnds = new List<int>();
         private readonly Cached pathCache = new Cached();
 
         private double calculatedLength;
@@ -191,6 +192,16 @@ namespace osu.Game.Rulesets.Objects
             return pointsInCurrentSegment;
         }
 
+        /// <summary>
+        /// Returns the progress values at which segments of the path end.
+        /// </summary>
+        public IEnumerable<double> GetSegmentEnds()
+        {
+            ensureValid();
+
+            return segmentEnds.Select(i => cumulativeLength[i] / calculatedLength);
+        }
+
         private void invalidate()
         {
             pathCache.Invalidate();
@@ -211,6 +222,7 @@ namespace osu.Game.Rulesets.Objects
         private void calculatePath()
         {
             calculatedPath.Clear();
+            segmentEnds.Clear();
 
             if (ControlPoints.Count == 0)
                 return;
@@ -236,6 +248,9 @@ namespace osu.Game.Rulesets.Objects
                         calculatedPath.Add(t);
                 }
 
+                // Remember the index of the segment end
+                segmentEnds.Add(calculatedPath.Count - 1);
+
                 // Start the new segment at the current vertex
                 start = i;
             }

From 98a312ca9661c8d6a61141a4be57265a93b79a2a Mon Sep 17 00:00:00 2001
From: OliBomby <olivierschipper@gmail.com>
Date: Thu, 3 Nov 2022 15:16:31 +0100
Subject: [PATCH 2/2] Fix segmentEnds incorrect on shortened paths

---
 osu.Game/Rulesets/Objects/SliderPath.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/osu.Game/Rulesets/Objects/SliderPath.cs b/osu.Game/Rulesets/Objects/SliderPath.cs
index 46c41f0b5a..2340cbd6c3 100644
--- a/osu.Game/Rulesets/Objects/SliderPath.cs
+++ b/osu.Game/Rulesets/Objects/SliderPath.cs
@@ -316,6 +316,10 @@ namespace osu.Game.Rulesets.Objects
                     {
                         cumulativeLength.RemoveAt(cumulativeLength.Count - 1);
                         calculatedPath.RemoveAt(pathEndIndex--);
+
+                        // Shorten the last segment to the expected distance
+                        if (segmentEnds.Count > 0)
+                            segmentEnds[^1]--;
                     }
                 }