Organize custom scripts and Shared under Assets/Scripts, and delete assembly definition files

Assets/Scripts/Baba_yaga/Game/EloSystem.cs

@@ -0,0 +1,64 @@
+using UnityEngine;
+
+namespace Baba_yaga.Game
+{
+    /// <summary>
+    /// Pure logic for Elo rating calculations. 
+    /// Follows the 1v1 competitive formula with dynamic K-factor.
+    /// </summary>
+    public static class EloSystem
+    {
+        public const int RATING_FLOOR = 100;
+        public const int PLACEMENT_GAMES = 30;
+
+        public static EloResult Calculate(
+            int ratingA, int ratingB,
+            int gamesPlayedA, int gamesPlayedB,
+            float resultA) // 1=win, 0=lose, 0.5=draw
+        {
+            // 1. Expected Scores
+            float eA = 1f / (1f + Mathf.Pow(10f, (ratingB - ratingA) / 400f));
+            float eB = 1f - eA;
+
+            // 2. K-Factors
+            int kA = GetK(ratingA, gamesPlayedA);
+            int kB = GetK(ratingB, gamesPlayedB);
+            
+            // 3. New Ratings
+            int nA = Mathf.Max(RATING_FLOOR, Mathf.RoundToInt(ratingA + kA * (resultA - eA)));
+            int nB = Mathf.Max(RATING_FLOOR, Mathf.RoundToInt(ratingB + kB * ((1f - resultA) - eB)));
+            
+            return new EloResult(nA, nB, nA - ratingA, nB - ratingB);
+        }
+
+        private static int GetK(int rating, int gamesPlayed)
+        {
+            if (gamesPlayed < PLACEMENT_GAMES) return 40;
+            if (rating < 1200) return 32;
+            if (rating < 2000) return 24;
+            return 16;
+        }
+
+        public static string GetRank(int rating)
+        {
+            if (rating < 800) return "Iron";
+            if (rating < 1000) return "Bronze";
+            if (rating < 1200) return "Silver";
+            if (rating < 1500) return "Gold";
+            if (rating < 1800) return "Platinum";
+            if (rating < 2100) return "Diamond";
+            return "Master";
+        }
+        
+        public static string GetRankColor(int rating)
+        {
+            if (rating < 800) return "#8A8A8A";  // Iron
+            if (rating < 1000) return "#CD7F32"; // Bronze
+            if (rating < 1200) return "#C0C0C0"; // Silver
+            if (rating < 1500) return "#FFD700"; // Gold
+            if (rating < 1800) return "#4DC8A0"; // Platinum
+            if (rating < 2100) return "#7B6EE8"; // Diamond
+            return "#E84D8A";                   // Master
+        }
+    }
+}