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Assets/MagicaCloth2/Scripts/Editor/EditorExtension/DrawIconInHierarchy.cs

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+// Magica Cloth 2.
+// Copyright (c) 2023 MagicaSoft.
+// https://magicasoft.jp
+using UnityEditor;
+using UnityEngine;
+
+namespace MagicaCloth2
+{
+    /// <summary>
+    /// ヒエラルキーへアイコンの表示
+    /// </summary>
+    [InitializeOnLoad]
+    public class DrawIconInHierarchy
+    {
+        const int iconSize = 16;
+
+        static DrawIconInHierarchy()
+        {
+            EditorApplication.hierarchyWindowItemOnGUI += DrawIcon;
+        }
+
+        static void DrawIcon(int instanceId, Rect rect)
+        {
+            rect.width = iconSize;
+            GameObject obj = UnityEditor.EditorUtility.InstanceIDToObject(instanceId) as GameObject;
+            if (obj == null)
+                return;
+            rect.x += EditorStyles.label.CalcSize(obj.name).x;
+            rect.y += -1;
+            rect.x += iconSize + 4;
+
+            foreach (var component in obj.GetComponents<ClothBehaviour>())
+            {
+                if (component is MagicaSphereCollider
+                    || component is MagicaCapsuleCollider
+                    || component is MagicaPlaneCollider
+                    || component is MagicaCloth
+                    || component is MagicaWindZone
+                    || component is MagicaSettings
+                    )
+                {
+                    var icon = AssetPreview.GetMiniThumbnail(component);
+                    GUI.Label(rect, icon);
+                    rect.x += iconSize;
+                }
+            }
+        }
+    }
+
+    /// <summary>
+    /// テキストのサイズを取得
+    /// </summary>
+    public static class GUIStyleExtensions
+    {
+        public static Vector2 CalcSize(this GUIStyle self, string text)
+        {
+            var content = new GUIContent(text);
+            var size = self.CalcSize(content);
+            return size;
+        }
+    }
+}