//
//  ViewController.swift
//  BambooCopter
//
//  Created by MizushimaYusuke on 2017/11/20.
//  Copyright © 2017 MizushimaYusuke. All rights reserved.
//

import UIKit
import SceneKit
import ARKit

class ViewController: UIViewController, ARSCNViewDelegate {

    @IBOutlet var sceneView: ARSCNView!

    override func viewDidLoad() {
        super.viewDidLoad()

        // Set the view's delegate
        sceneView.delegate = self

        // Show statistics such as fps and timing information
        sceneView.showsStatistics = true

        // Create a new scene
        let scene = SCNScene()

        // Set the scene to the view
        sceneView.scene = scene
    }

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        // Create a session configuration
        let configuration = ARWorldTrackingConfiguration()

        // Run the view's session
        sceneView.session.run(configuration)
    }

    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)

        // Pause the view's session
        sceneView.session.pause()
    }
    func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) {

        renderer.autoenablesDefaultLighting = true

        let fan = SCNBox(width: 0.04, height: 0.001, length: 0.005, chamferRadius: 0.0001)
        fan.firstMaterial?.diffuse.contents = UIColor.green
        let fanNode = SCNNode(geometry: fan)
        fanNode.position = SCNVector3(0, 0.02, 0)

        let bar = SCNCylinder(radius: 0.0005, height: 0.04)
        bar.firstMaterial?.diffuse.contents = UIColor.brown
        let barNode = SCNNode(geometry: bar)

        let copter = SCNNode()
        copter.addChildNode(fanNode)
        copter.addChildNode(barNode)

        node.addChildNode(copter)

        copter.runAction(.repeatForever(.rotateBy(x: 0, y: .pi, z: 0, duration: 0.25)))
        copter.runAction(.sequence([
            .moveBy(x: 0, y: 0.05, z: 0, duration: 1.0),
            .moveBy(x: 0, y: -0.05, z: 0, duration: 1.0),
            ]))
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        if let p = touches.first?.location(in: sceneView) {
            if let hit = sceneView.hitTest(p, types: .featurePoint).first {
                sceneView.session.add(anchor: ARAnchor(transform: hit.worldTransform))
            }
        }

    }
}