Track LocalMods as part of monolith

LocalMods/More Level Content/CSharp/Shared/Generation/Defs/DefWithDifficultyRange.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Text;
+
+namespace MoreLevelContent.Shared.Generation
+{
+    public abstract class DefWithDifficultyRange : IComparable<DefWithDifficultyRange>
+    {
+        protected DefWithDifficultyRange(string stringContainingDiff) => DifficultyRange = new DifficultyRange(stringContainingDiff);
+        protected DefWithDifficultyRange(float min, float max) => DifficultyRange = new DifficultyRange(min, max);
+
+        public float MinDifficulty => DifficultyRange.MinDiff;
+        public float MaxDifficulty => DifficultyRange.MaxDiff;
+        public float AverageDifficulty => (MinDifficulty + MaxDifficulty) / 2;
+
+        public DifficultyRange DifficultyRange { get; protected set; }
+
+        public int CompareTo([AllowNull] DefWithDifficultyRange other) => other == null ? -1 : other.MinDifficulty < MinDifficulty ? -1 : other.MinDifficulty == MinDifficulty ? 0 : 1;
+    }
+}