├── DuplicateSpecial.cs
├── README.md
└── duplicate_special_demo.gif


/DuplicateSpecial.cs:
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 1 | using UnityEngine;
 2 | using UnityEditor;
 3 | 
 4 | [ExecuteInEditMode]
 5 | public class DuplicateSpecial : EditorWindow
 6 | {
 7 |     int count;
 8 |     Vector3 relOffset;
 9 |     Vector3 conOffset;
10 | 
11 |     // object to duplicate
12 |     GameObject target;
13 |     Renderer rend;
14 | 
15 |     // wrapper object for duplicates
16 |     GameObject wrapper;
17 | 
18 |     [MenuItem("Plugins/Duplicate special")]
19 |     static void Init()
20 |     {
21 |         DuplicateSpecial window = (DuplicateSpecial)GetWindow(typeof(DuplicateSpecial), true, "Duplicate special");
22 |         window.Show();
23 |     }
24 | 
25 |     void OnGUI()
26 |     {
27 |         target = Selection.activeGameObject;
28 |         if (target == null)
29 |         {
30 |             ErrorMsg("Please select an object to duplicate from Hierarchy View");
31 |             return;
32 |         }
33 | 
34 |         rend = target.GetComponentInChildren<Renderer>();
35 | 
36 |         EditorGUI.BeginChangeCheck();
37 | 
38 |         count = EditorGUILayout.IntField("Count", count);
39 |         relOffset = EditorGUILayout.Vector3Field("Relative offset", relOffset);
40 |         conOffset = EditorGUILayout.Vector3Field("Constant offset", conOffset);
41 | 
42 |         if (EditorGUI.EndChangeCheck())
43 |         {
44 |             Rollback(); // destroy wrapper from previous changes check tick before creating a new one
45 |             Apply();
46 |         }
47 | 
48 |         if (GUILayout.Button("Ok")) Close();
49 |         if (GUILayout.Button("Cancel"))
50 |         {
51 |             Rollback();
52 |             Close();
53 |         }
54 |     }
55 | 
56 |     private void Apply()
57 |     {
58 |         wrapper = new GameObject(target.name + "_duplicates_" + count);
59 | 
60 |         for (int i = 1; i <= count; i++)
61 |         {
62 |             GameObject clone = Instantiate(target, target.transform.position, target.transform.rotation) as GameObject;
63 | 
64 |             Vector3 offset = new Vector3(rend.bounds.size.x * relOffset.x + conOffset.x,
65 |                                         rend.bounds.size.y * relOffset.y + conOffset.y,
66 |                                         rend.bounds.size.z * relOffset.z + conOffset.z)
67 |                                         * i;
68 |             clone.transform.Translate(offset);
69 |             clone.transform.SetParent(wrapper.transform);
70 |         }
71 |     }
72 | 
73 |     private void Rollback()
74 |     {
75 |         DestroyImmediate(wrapper);
76 |     }
77 | 
78 |     private void ErrorMsg(string msg)
79 |     {
80 |         EditorGUILayout.LabelField(msg);
81 |     }
82 | 
83 |     void OnDestroy()
84 |     {
85 |         if (count == 0) Rollback();
86 |     }
87 | }
88 | 


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/README.md:
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1 | # Duplicate special for Unity
2 | 
3 | A tiny Unity Editor script which duplicates objects in a fashion similar to Blender's Array Modifier.
4 | 
5 | Place it in your Unity project under Assets/Editor.
6 | 
7 | ![My image](https://github.com/marcin-se/unity_duplicate_special/blob/master/duplicate_special_demo.gif) 	
8 | 
9 | 


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/duplicate_special_demo.gif:
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https://raw.githubusercontent.com/riperjack/unity_duplicate_special/661c5368cfe588852d01f53f5799d644462c6c28/duplicate_special_demo.gif


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