Tweaks to Replace tool

UOP1_Project/Assets/Scripts/Editor/ReplaceTool.cs

 using UnityEngine;
 using UnityEditor;
 
+// This code has been adapted from a tutorial by Patryk Galach
+// https://www.patrykgalach.com/2019/08/26/replace-tool-for-level-designers
+
-/// Replace tool window,available under Tools window.
+/// Replace tool window,available under the Tools menu.
-	// Data store for replace tool.
-	// Data variable wrapped into SerializedObject.
-	// Prefab variable from data object. Using SerializedProperty for integrated Undo.
+	// Prefab variable from data object. Using SerializedProperty for integrated Undo
+	// Scroll position for list of selected objects
+	Vector2 selectObjectScrollPosition;
-		// If data don't exist, create it.
-		// If data was not wrapped into SerializedObject, wrap it.
+		// If data was not wrapped into SerializedObject, wrap it
-		// If prefab field was not assigned as SerializedProperty, assign it.
+		// If prefab field was not assigned as SerializedProperty, assign it
-			replaceObjectField = serializedData.FindProperty("replaceObject");
+			replaceObjectField = serializedData.FindProperty("replacementPrefab");
-	// Scroll position for list of selected objects.
-	Vector2 selectObjectScrollPosition;
-
-	// Register menu item to open Window.
+	// Register menu item to open Window
-		// Get existing open window or if none, make a new one.
-
-		// Open / Show window.
-		 // Check to have data.
-        InitDataIfNeeded();
-        // Window title.
-        EditorGUILayout.LabelField("Replace Tool", EditorStyles.boldLabel);
-        // ReplaceObject field. This object will be used to replace selected game objects.
+		InitDataIfNeeded();
+		EditorGUILayout.Separator();
-        // Space.
-        // Title for section with objects to replace.
+
-        // Space.
+
-        // Adding a little indentation.
-        // Printing information when no object is selected on scene.
+
+		// Printing information when no object is selected on scene.
-            EditorGUILayout.LabelField("Select object o objects in hierarchy to replace them", EditorStyles.wordWrappedLabel);
+            EditorGUILayout.LabelField("Select objects in the hierarchy to replace them", EditorStyles.wordWrappedLabel);
-        // Scroll view with selected game objects.
+
+        // Read-only scroll view with selected game objects.
-        // Read only list of objects to replace
+
         GUI.enabled = false;
         if (data && data.objectsToReplace != null)
         {
             }
         }
         GUI.enabled = true;
-        // Closing scroll view.
+
-        // Removing indentation for rest of the window.
-        // Space.
-        // Replace button.
+
-		        Debug.LogErrorFormat("[Replace Tool] {0}", "Missing prefab to replace with!");
+		        Debug.LogErrorFormat("{0}", "No prefab to replace with!");
-		        Debug.LogErrorFormat("[Replace Tool] {0}", "Missing objects to replace!");
+		        Debug.LogErrorFormat("{0}", "No objects to replace!");
-	        ReplaceSelectedObjects(data.objectsToReplace, data.replaceObject);
+	        ReplaceSelectedObjects(data.objectsToReplace, data.replacementPrefab);
-        // Space.
+
-        // Applying any changes on data.
-		// If data was changed, force repaint.
 		if (serializedData != null && serializedData.UpdateIfRequiredOrScript())
 		{
 			this.Repaint();
 	{
-		// Check to have data.
-		// Creating filter to gather object only on scene.
-		// Converting Transform array into GameObject array.
-		// Force repaint as update is needed.
 		if (serializedData.UpdateIfRequiredOrScript())
 		{
 			this.Repaint();
 	/// Replaces game objects with provided replace object.
 	/// </summary>
 	/// <param name="objectToReplace">Game Objects to replace.</param>
-	/// <param name="replaceObject">Replace object.</param>
+	/// <param name="replaceObject">Prefab that will be instantiated in place of the objects to replace.</param>
-		// Loop through object to replace.
-			// Register current game object to Undo action in editor.
-			// Creating replace object as the same position and same parent.
-			// Register object creation for Undo action in editor.
-			// Changing parent for all children of current game object.
-				// Saving action for Undo action in editor.
-			// Destroying current game object with save for Undo action in editor.
+
+/// <summary>
+/// Data class for replace tool.
+/// </summary>
+public class ReplaceData : ScriptableObject
+{
+	public GameObject replacementPrefab;
+	public GameObject[] objectsToReplace;
+}

UOP1_Project/Assets/Scripts/Editor/ReplaceTool.cs.meta

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UOP1_Project/Assets/ScriptableObjects/ReplaceData.cs

-using UnityEngine;
-
-/// <summary>
-/// Data class for replace tool.
-/// </summary>
-public class ReplaceData : ScriptableObject
-{
-	// Reference to replace object.
-	public GameObject replaceObject;
-
-	// Array of object to replace.
-	public GameObject[] objectsToReplace;
-}