Update

Assets/Scripts/GameSetup/Maze/MazeGrid.cs

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+using System;
+using UnityEngine;
+
+namespace Hallucinate.GameSetup.Maze
+{
+    /// <summary>
+    /// Holds the logical state of the maze grid.
+    /// Notifies listeners whenever a cell changes to trigger visual updates.
+    /// </summary>
+    public class MazeGrid
+    {
+        public int Width { get; }
+        public int Depth { get; }
+        
+        private readonly MazeCellType[,] _cells;
+
+        /// <summary>
+        /// Event fired when a cell's type is changed.
+        /// Useful for the Renderer to trigger animations/FX.
+        /// </summary>
+        public event Action<int, int, MazeCellType> OnCellChanged;
+
+        public MazeGrid(int width, int depth)
+        {
+            Width = width;
+            Depth = depth;
+            _cells = new MazeCellType[width, depth];
+            
+            // Initialize all as walls
+            for (int z = 0; z < depth; z++)
+                for (int x = 0; x < width; x++)
+                    _cells[x, z] = MazeCellType.Wall;
+        }
+
+        public void SetCell(int x, int z, MazeCellType type)
+        {
+            if (IsInBounds(x, z))
+            {
+                if (_cells[x, z] != type)
+                {
+                    _cells[x, z] = type;
+                    OnCellChanged?.Invoke(x, z, type);
+                }
+            }
+        }
+
+        public MazeCellType GetCell(int x, int z)
+        {
+            if (IsInBounds(x, z))
+                return _cells[x, z];
+            return MazeCellType.Wall; // Treat out of bounds as walls
+        }
+
+        public bool IsInBounds(int x, int z)
+        {
+            return x >= 0 && x < Width && z >= 0 && z < Depth;
+        }
+
+        public int CountSquareNeighbours(int x, int z, MazeCellType targetType)
+        {
+            int count = 0;
+            if (x <= 0 || x >= Width - 1 || z <= 0 || z >= Depth - 1) return 5;
+
+            if (GetCell(x - 1, z) == targetType) count++;
+            if (GetCell(x + 1, z) == targetType) count++;
+            if (GetCell(x, z + 1) == targetType) count++;
+            if (GetCell(x, z - 1) == targetType) count++;
+            return count;
+        }
+    }
+}