New consistency factor calculation

osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyCalculator.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Difficulty;
 using osu.Game.Rulesets.Difficulty.Preprocessing;
@@ -203,25 +204,25 @@ private double combinedDifficultyValue(Rhythm rhythm, Reading reading, Colour co
                     peaks.Add(peak);
             }
 
-            // We are taking 20% of the top weight spikes in strains to achieve a good perception of the map's peak sections.
-            List<double> hardStrains = peaks.OrderDescending().ToList().GetRange(0, peaks.Count / 10 * 2);
-
-            // We are taking 20% of the middle weight spikes in strains to achieve a good perception of the map's overall progression.
-            List<double> midStrains = peaks.OrderDescending().ToList().GetRange(peaks.Count / 10 * 4, peaks.Count / 10 * 2);
-
-            // We can calculate the consitency factor by doing middle weight spikes / most weight spikes.
-            // It resoult in a value that rappresent the consistency for all peaks in a range number from 0 to 1.
-            totalConsistencyFactor = midStrains.Average() / hardStrains.Average();
+            List<double> hardStrains = new List<double>();
 
             double difficulty = 0;
             double weight = 1;
 
             foreach (double strain in peaks.OrderDescending())
             {
+                // We are taking only the spikes that fit in the 80% of the top weight spike in strains to achieve a good perception of the map's peak sections.
+                if (strain / peaks.Max() > 0.8)
+                    hardStrains.Add(strain);
+
                 difficulty += strain * weight;
                 weight *= 0.9;
             }
 
+            // We can calculate the consitency factor by doing middle weight spikes / most weight spikes.
+            // It result in a value that represent the consistency for all peaks in a range number from 0 to 1.
+            totalConsistencyFactor = peaks.Average() / hardStrains.Average();
+
             return difficulty;
         }