nitrio DGArt

DGArt Scenekit Playgrounds mini Game Tutorial 2

Create Plane and Tap Control : iPadOS

The example PolyPlane was modeled using DGArt and used in the Playground app. And the 3D scene contains a "Plane" node and a "Propeller" node.

Import the .scn file into the Playgrounds app using the following steps: Edit the ContentView code as shown below: 

// Sample provide from www.nitrio.com for DGArt iPad 
import SwiftUI
import SceneKit

struct ContentView: View {
    
    var body: some View { 
        VStack { 
            GameViewControllerRepresentable()
            VStack {
                Text("DGArt Mini Game | Plane")
            }.padding(10)
        }
    }
}

struct GameViewControllerRepresentable: UIViewControllerRepresentable {
    func makeUIViewController (context: Context) -> GameViewController {
        GameViewController ()
    }
    
    func updateUIViewController(_ uiViewController: GameViewController, context: Context) {
        
    }
}
Edit the GameViewController code as shown below: 

// Sample provide from www.nitrio.com for DGArt iPad 
import UIKit
import SceneKit 

public class GameViewController: UIViewController {
    
    private var scene: SCNScene!
    private var sceneView = SCNView()
    
    private var screenSize = CGSize(width: 500, height: 1200)
    private var point: CGPoint = .zero
    private var prepoint: CGPoint = .zero
    
    private var plane:SCNNode = SCNNode()
    
    public override func viewDidLoad() {
        super.viewDidLoad ()
        setup()
    }
    
    func setup () {
        sceneView.frame = CGRect (origin: .zero, size: screenSize)
        scene = SCNScene(named: "PolyPlane.scn")
        
        
        // load aeroplane
        plane = (scene?.rootNode.childNode(withName: "Plane", recursively: true))!
        plane.scale = SCNVector3(x: 0.4, y: 0.4, z: 0.4)
        plane.eulerAngles = SCNVector3(x: 0, y: .pi , z: 0)
        plane.position = SCNVector3(x: 0, y: 0, z: 0)
        // add and animate propeller
        let propeller = scene?.rootNode.childNode(withName: "Propeller", recursively: true)
        propeller?.runAction(SCNAction.repeatForever(SCNAction.rotateBy(x: 0, y: 0, z: 30, duration: 1)))
        
        // Add Light
        let myLight = SCNNode()
        myLight.light = SCNLight()
        myLight.position = SCNVector3(x: -5, y: 10, z: 10)
        myLight.look(at: SCNVector3(x: 0, y: 0, z: 0))
        myLight.light?.intensity = 800
        myLight.light?.type = SCNLight.LightType.directional
        myLight.light?.color = UIColor.white
        myLight.light?.castsShadow = true
        scene?.rootNode.addChildNode(myLight)
        
        // Add Camera
        let cameraNode = SCNNode()
        cameraNode.camera = SCNCamera()
        cameraNode.camera?.usesOrthographicProjection = true
        cameraNode.camera?.orthographicScale = 8
        cameraNode.position = SCNVector3(x: 0, y: 10, z: 15)
        cameraNode.look(at: SCNVector3(x: 0, y: 0, z: 0))
        
        sceneView.scene = scene
        sceneView.pointOfView = cameraNode
        sceneView.autoenablesDefaultLighting = true
        
        
        //sceneView.showsStatistics = true
        //sceneView.allowsCameraControl = true
        //sceneView.debugOptions = [.showWireframe, .showBoundingBoxes, .showPhysicsShapes]
        view.addSubview(sceneView)
    }
    
    // move aeroplane to touch position
    func movePlane(_ snode: SCNNode) {
        snode.position = SCNVector3(x: Float(prepoint.x), y: 0, z: Float(prepoint.y))
        snode.runAction(SCNAction.move(to: SCNVector3(x: Float(point.x), y: 0, z: Float(point.y)), duration: 0.3))
    }
    
    public override func touchesBegan(_ touches: Set<UITouch>, with
                                      event: UIEvent?) {
        guard let touchLocation = touches.first?.location (in: view) else { return }
                
        prepoint = point
        let pointo = touchLocation
        let pointx = screenSize.width/2 - pointo.x
        let pointy = screenSize.height/2 - pointo.y
        point = CGPoint(x: -pointx/50.0, y: -pointy/50.0)
        // move aeroplane to touch position
        movePlane(plane)
    }
    
}

Finally, you will be able to see the animate plane appear beside.

Tap on screen to navigate plane.

Alternatively, you can obtain the playground file here for exercise mentioned above. Download miniGamePlane.swiftpm.zip