riversong code showcase

Source/Riversong/Tools/IconMaker.cs

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+using System.IO;
+using Sirenix.OdinInspector;
+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class IconMaker : MonoBehaviour
+    {
+#if UNITY_EDITOR
+        [SerializeField]
+        [PreviewField]
+        private RenderTexture _iconTexture;
+
+        [Button(ButtonSizes.Large)]
+        [GUIColor("cyan")]
+        public void MakeIcon()
+        {
+            if (!_iconTexture) return;
+
+            var folderPath = "Assets/_Project/GameAssets/UI/Icons";
+            if (!Directory.Exists(folderPath)) Directory.CreateDirectory(folderPath);
+
+            var fileName = $"Icon_{GUID.Generate()}.png";
+
+            RenderTexture.active = _iconTexture;
+
+            var temp = new Texture2D(_iconTexture.width, _iconTexture.height, TextureFormat.RGBA32, false);
+            temp.ReadPixels(new Rect(0, 0, _iconTexture.width, _iconTexture.height), 0, 0);
+            temp.Apply();
+
+            var fullPath = Path.Combine(folderPath, fileName);
+            File.WriteAllBytes(fullPath, temp.EncodeToPNG());
+
+            AssetDatabase.Refresh();
+
+            var importer = (TextureImporter)AssetImporter.GetAtPath(fullPath);
+            importer.textureType = TextureImporterType.Sprite;
+            importer.spriteImportMode = SpriteImportMode.Single;
+            importer.maxTextureSize = 256;
+            importer.mipmapEnabled = true;
+            importer.SaveAndReimport();
+        }
+#endif
+    }
+}