FileDescriptions.md

ViewController.swift

• Does the setup of the scene and it’s elements
• Contains an updateQueue property on which the adding and deleting of nodes needs to be scheduled (automatic through placeVirtualObject())

VirtualObjectARView.swift

• Subclass of ARSCNView, which comes with ARKit
• Keeps the position in the real world synced with the position in the virtual world
• Has some helper methods converting from screen to the virtual world or doing hit testing

ViewController+Actions.swift

• Handles the actions like adding objects
• Is where you would put @IBActions

ViewController+ARSCNViewDelegate.swift

• Contains the callbacks from ARKit into our app
• Adjusts all the objects back to the detected plane

ViewController+ObjectSelection.swift

• Contains func placeVirtualObject(_ virtualObject: VirtualObject)
• Handles the selecting of the build-in model objects

VirtualObjectInteraction.swift

• Handles all interaction with VirtualObjects
• Contains all the Gesture Recognizers and the handling of them

VirtualObjectList.swift

• Manages all virtual objects in the scene

VirtualObject.swift

• Type of objects that we’re going to add to the scene
• Combination of SCNNode and Positionable protocol

Cube.swift

• Example of a custom VirtualObject that can be added

Main.storyboard

• Set’s up the scene and UI
• Try to modify as little as possible to avoid merge conflicts