Extending unity3D Editor
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quick overview to unity3d editor scripting. topics included - IMGUI Basics - Custom Inspector - Custom Property Drawers - Custom Windows - ScriptableObject - Unity Serialization - Gizoms Animated version of this presentation https://docs.google.com/presentation/d/1on4foXtmNbrbqWsM0hly7LtZQIRXS99ZZo1Q84O54KI/edit?usp=sharing
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Extending unity3D Editor
- 1. Extendingunity3dEditor Develop Tools that fasten game development Seminar FragGames
- 2. Disclaimer The purpose of these slides is to give general overview how to extend unity3d editor to unity3d dev team of company(frag games). I did not own the whole material of these slides most of the stuff is taken from unity3d Documentation.
- 3. CustomEditor IMGUI Basics Property Drawers Custom Editor Custom Windows Gizmos Scriptable Objects Unity Seralization April 25 2016 Presented by Ahmed Roadmap
- 4. ThisSeminarisdividedintwoparts Part-one IMGUI Basics Property Drawers Custom Editor Part-Two Custom Windows Scriptable Objects Unity Serialization Gizmos
- 6. ImmediatemodevsRetainedmode No setup required Specify GUI Components as function calls Inefficient for game UI Good for editor scripting Requires setup Retains information about GUI Respond to callbacks
- 7. MainGUIComponents. Unity provides three classes GUI, EditorGUI & EditorGUILayout which contains function to draw GUI components. GUI class can be used for both in game & editor code. EditorGUILayout is auto-layout version of EditorGUI
- 9. HowUnityScriptsareBuild Phase 1 Phase 2 Phase 3 Phase 4 Assets folder has same physical path.
- 10. PropertyDrawers
- 11. PropertyDrawers Property Drawers can be used to customize the look of certains controls in Inspector. There are two types of property drawers Built in Custom builtin-Example
- 12. CustompropertyDrawers for serialized classes For Fields as Attributes
- 14. CodeSnapShot Place this script in Editor folder
- 16. CodeSnapShot Inherits with PropertyAttribute Inherits propertyDrawer Draw GUI stuff Get Height of Element Place this script in Editor folder
- 17. CustomEditor
- 18. CustomInspector 1: pass class name 2: Extends with Editor 3: target contains under inspection class data 4: here do draw stuff 5: utilities If you want to study the source code of this custom inspector see this link
- 19. CustomMenus
- 20. AddingMenuItems
- 21. ContextMenuItem Very Useful for testing purpose
- 22. TakeAway Property Drawers -Serialized Class -Fields Custom Inspector (Editor)
- 23. CustomEditor Gizmos Custom Windows Scriptable Objects Unity Seralization May 5 2016 Presented by Ahmed Part-2
- 24. Gizmos
- 25. Description Gizmos are used to give visual debugging or setup aid in scene view. Use OnDrawGizmos or OnDrawGizmosSelected in your class to draw them. First one get called in every frame second get called only when object is selected to whom this script is attached.
- 26. Gizmos These function are very easy to use just called them in OnGizmosDraw:)
- 27. CustomWindow
- 30. ScriptableObjects Scriptableobject is a class that allows you to store large quantities of shared data independent from script instance. they don’t need to be attached to game objects. Read Only at run-time Usecase: Reduce memory usage by avoiding copies of values Define pluggable data sets.
- 31. HowtoCreatethem Extends from ScriptableObject method to create ScriptableObject These methods are self-explanatory Method to load existing ScriptableObject
- 33. Serializationinunity[behindthescene] {content of this section is taken from blog post written by unity Dev who wrote unity serialization system} Serialization of “things” is at very core of Unity.Many of unity's features build on top of serialization system. The serialization is written in C++.
- 34. Continued...
- 35. Continued... Storing Data (Inspector Window) Inspector window doesn't talk to C# api for properties & their values It asks the object to serialize itself and then displays serialized data.
- 36. Continued... Prefabs Internally, prefab is serialized data stream of game object(s) & components A prefab instance is a list of modifications that should be made on the serialized data for this instance. The concept of prefab only exist in editor, instantiated gameobjects have no idea they were prefabs in editor.
- 37. Continued... Instantiation When you call Instantiate() on a prefab or on existing gameobject Object get serialized, new object created & and deserialize the data on new object if object contains reference to external objects reference is kept as is, if it has reference to its children than reference is patched to new copy
- 38. Continued... Save/Load [Scene] Unity saves it scenes as yaml file, you can check that by opening scene with text editor, but you have to set unity to “force text serialization” Loading of scenes & assets uses serialization system
- 39. Lastfewwordsonserialization {don’t confuse this serialization with some 3rd party library} How many allocations are made when deserializing a monobehaviour that uses this script. No support for null for custom class No support for polymorphism Correct answer is 729 with 7 level depth limit
- 40. WhentowritecustomEditor When we learn something new we tend to overuse It. Don't hesitate just write Custom editor with Experience you get “Right Use” Right Use overuse under-use
Editor's Notes
- Part one
- Ref :
- Reference :
- http://blogs.unity3d.com/2014/06/24/serialization-in-unity/