Metric -> Metrics.

osu.Game/Database/BeatmapMetrics.cs

@@ -0,0 +1,28 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System.Collections.Generic;
+
+namespace osu.Game.Database
+{
+    /// <summary>
+    /// Beatmap metrics based on acculumated online data from community plays.
+    /// </summary>
+    public class BeatmapMetrics
+    {
+        /// <summary>
+        /// Total vote counts of user ratings on a scale of 0..length.
+        /// </summary>
+        public IEnumerable<int> Ratings { get; set; }
+
+        /// <summary>
+        /// Points of failure on a relative time scale (usually 0..100).
+        /// </summary>
+        public IEnumerable<int> Fails { get; set; }
+
+        /// <summary>
+        /// Points of retry on a relative time scale (usually 0..100).
+        /// </summary>
+        public IEnumerable<int> Retries { get; set; }
+    }
+}