refactor: LevelDefinition ScriptableObject drives floor count and geometry

Assets/Scripts/Infrastructure/Unity/LevelDefinition.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Infrastructure.Unity
+{
+    [CreateAssetMenu(fileName = "LevelDefinition", menuName = "Decay Grid/Level Definition")]
+    public class LevelDefinition : ScriptableObject
+    {
+        [SerializeField] private int gridSizeX = 10;
+        [SerializeField] private int gridSizeY = 10;
+        [SerializeField] private float floorHeightDistance = 15f;
+        [SerializeField] private FloorConfig[] floors =
+        {
+            new() { pattern = FloorPatternType.Square },
+            new() { pattern = FloorPatternType.Donut },
+            new() { pattern = FloorPatternType.Circle }
+        };
+
+        public int GridSizeX => gridSizeX;
+        public int GridSizeY => gridSizeY;
+        public float FloorHeightDistance => floorHeightDistance;
+        public int FloorCount => floors.Length;
+        public IReadOnlyList<FloorConfig> Floors => floors;
+    }
+
+    [Serializable]
+    public class FloorConfig
+    {
+        public FloorPatternType pattern;
+    }
+
+    public enum FloorPatternType
+    {
+        Square,
+        Donut,
+        Circle
+    }
+}