edwardrowe · July 17, 2023 00:11 · Jun 1, 2016 · Jun 1, 2016 · Jun 1, 2016 · Jun 1, 2016
diff --git a/DrawHierarchyIcon.cs b/DrawHierarchyIcon.cs
@@ -54,8 +54,9 @@ private static void DrawIconOnWindowItem(int instanceID, Rect rect)
             return;
         }
 
+
         var comment = gameObject.GetComponent<Comment>();
-        if (!string.IsNullOrEmpty(comment.Body))
+        if (comment != null && !string.IsNullOrEmpty(comment.Body))
         {
             float iconWidth = 15;
             EditorGUIUtility.SetIconSize(new Vector2(iconWidth, iconWidth));
@@ -68,7 +69,6 @@ private static void DrawIconOnWindowItem(int instanceID, Rect rect)
             var iconGUIContent = new GUIContent(Icon);
             EditorGUI.LabelField(iconDrawRect, iconGUIContent);
             EditorGUIUtility.SetIconSize(Vector2.zero);
-            break;
         }
     }
 }
diff --git a/Comment.cs b/Comment.cs
@@ -29,7 +29,7 @@ public class Comment : MonoBehaviour
     [BackingFieldTooltip("Body")]
     [TextArea]
     [SerializeField]
-    private string comment;
+    private string body;
 
     /// <summary>
     /// Gets or sets the body of the comment, mainly used for display of information on test maps.

diff --git a/Comment.cs b/Comment.cs
@@ -0,0 +1,49 @@
+/*The MIT License (MIT)
+Copyright (c) 2016 Edward Rowe (@edwardlrowe)
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+using System.Collections;
+using RedBlueGames.Tools;
+using UnityEngine;
+
+/// <summary>
+/// Simple component that allows users to write comments to place on MonoBehaviours. Mainly for testmaps.
+/// </summary>
+public class Comment : MonoBehaviour
+{
+    [BackingFieldTooltip("Body")]
+    [TextArea]
+    [SerializeField]
+    private string comment;
+
+    /// <summary>
+    /// Gets or sets the body of the comment, mainly used for display of information on test maps.
+    /// </summary>
+    /// <value>The body.</value>
+    public string Body
+    {
+        get
+        {
+            return this.comment;
+        }
+        set
+        {
+            comment = value;
+        }
+    }
+}
diff --git a/DrawHierarchyIcon.cs b/DrawHierarchyIcon.cs
@@ -0,0 +1,74 @@
+/*The MIT License (MIT)
+Copyright (c) 2016 Edward Rowe (@edwardlrowe)
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+using UnityEditor;
+using UnityEngine;
+
+/// <summary>
+/// Draws a Comment Icon on GameObjects in the Hierarchy that contain the Comment component.
+/// </summary>
+[InitializeOnLoad]
+public class CommentHierarchyIcon
+{
+    private static readonly Texture2D Icon;
+
+    static CommentHierarchyIcon()
+    {
+        Icon = AssetDatabase.LoadAssetAtPath("Assets/Gizmos/CommentIcon.png", typeof(Texture2D)) as Texture2D;
+
+        if (Icon == null)
+        {
+            return;
+        } 
+
+        EditorApplication.hierarchyWindowItemOnGUI += DrawIconOnWindowItem;
+    }
+
+    private static void DrawIconOnWindowItem(int instanceID, Rect rect)
+    {
+        if (Icon == null)
+        {
+            return;
+        }
+
+        GameObject gameObject = EditorUtility.InstanceIDToObject(instanceID) as GameObject;
+
+        if (gameObject == null)
+        {
+            return;
+        }
+
+        var comment = gameObject.GetComponent<Comment>();
+        if (!string.IsNullOrEmpty(comment.Body))
+        {
+            float iconWidth = 15;
+            EditorGUIUtility.SetIconSize(new Vector2(iconWidth, iconWidth));
+            var padding = new Vector2(5, 0);
+            var iconDrawRect = new Rect(
+                                   rect.xMax - (iconWidth + padding.x), 
+                                   rect.yMin, 
+                                   rect.width, 
+                                   rect.height);
+            var iconGUIContent = new GUIContent(Icon);
+            EditorGUI.LabelField(iconDrawRect, iconGUIContent);
+            EditorGUIUtility.SetIconSize(Vector2.zero);
+            break;
+        }
+    }
+}
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