riversong code showcase

Source/Riversong/Game/World/Terrain/TileHighlight/TileHighlight.cs

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+using System;
+using Unity.Collections;
+using Unity.Mathematics;
+using UnityEngine;
+using Object = UnityEngine.Object;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class TileHighlight : IDisposable
+    {
+        private NativeArray<Color32> _clear;
+
+        private NativeGrid<Color32> _grid;
+
+        public Texture2D Texture { get; private set; }
+
+        public void Create(int2 size)
+        {
+            Texture = new Texture2D(size.x, size.y, TextureFormat.RGBA32, false);
+
+            _clear = new NativeArray<Color32>(size.x * size.y, Allocator.Persistent);
+            _grid = new NativeGrid<Color32>(size, Allocator.Persistent);
+        }
+
+        public void Dispose()
+        {
+            if (Texture)
+            {
+                Object.Destroy(Texture);
+                Texture = null;
+            }
+
+            if (_clear.IsCreated)
+            {
+                _clear.Dispose();
+                _clear = default;
+            }
+
+            if (_grid != null)
+            {
+                _grid.Dispose();
+                _grid = null;
+            }
+        }
+
+        public void Apply()
+        {
+            var dataArray = _grid.GetNativeArray();
+
+            Texture.SetPixelData(dataArray, 0);
+            Texture.Apply();
+
+            NativeArray<Color32>.Copy(_clear, dataArray);
+        }
+
+        public void AddTile(int2 tile, Color32 color)
+        {
+            _grid.SetValue(tile, color);
+        }
+    }
+}