//
//  ViewController.swift
//  hatStand
//
//  Created by MizushimaYusuke on 2017/04/27.
//  Copyright © 2017 MizushimaYusuke. All rights reserved.
//

import UIKit
import SpriteKit

class ViewController: UIViewController {

    weak var scene: SKScene?

    override func viewDidLoad() {
        super.viewDidLoad()
        setupScene()
        createStand()
        createHat()
    }

    func setupScene() {
        let sv = SKView(frame: view.bounds)
        let s = SKScene(size: sv.frame.size)
        sv.presentScene(s)
        view.addSubview(sv)
        scene = s
    }

    func createStand() {
        UIGraphicsBeginImageContextWithOptions(CGSize(width:200, height:200), false, 0)
        UIColor.white.set()
        let path = UIBezierPath()
        path.move(to: CGPoint(x: 100, y: 0))
        path.addLine(to: CGPoint(x:100, y:200))
        path.move(to: CGPoint(x:100, y:50))
        path.addLine(to: CGPoint(x: 25, y: 30))

        path.move(to: CGPoint(x:100, y:100))
        path.addLine(to: CGPoint(x: 170, y: 80))
        path.lineWidth = 5

        path.stroke()
        let img = UIGraphicsGetImageFromCurrentImageContext()!
        UIGraphicsEndImageContext()

        let texture = SKTexture(image: img)
        let node = SKSpriteNode(texture: texture)
        node.position = CGPoint(x: view.center.x, y: 100)
        scene?.addChild(node)

        node.physicsBody = SKPhysicsBody(texture: texture, size: texture.size())
        node.physicsBody?.isDynamic = false
    }

    func createHat() {
        let color = UIColor.brown
        UIGraphicsBeginImageContextWithOptions(CGSize(width:100, height:30), false, 0)
        color.set()
        let path = UIBezierPath()
        path.move(to: CGPoint(x: 0, y: 28))
        path.addLine(to: CGPoint(x: 30, y: 28))
        path.addLine(to: CGPoint(x: 30, y: 2))
        path.addLine(to: CGPoint(x: 70, y: 2))
        path.addLine(to: CGPoint(x: 70, y: 28))
        path.addLine(to: CGPoint(x: 100, y: 28))
        path.lineWidth = 4
        path.stroke()
        let img = UIGraphicsGetImageFromCurrentImageContext()!
        UIGraphicsEndImageContext()

        let texture = SKTexture(image: img)
        let node = SKSpriteNode(texture: texture)
        node.name = "hat"
        node.position = CGPoint(x: view.center.x - 200, y: view.frame.maxY - 80)
        scene?.addChild(node)

        let cover = SKSpriteNode(color: color, size: CGSize(width: 40, height: 30))
        node.addChild(cover)
        node.physicsBody = SKPhysicsBody(texture: texture, size: texture.size())
        node.physicsBody?.angularDamping = 0.8
        node.physicsBody?.restitution = 0
        node.physicsBody?.friction = 1.0
        node.physicsBody?.isDynamic = false

        node.run(SKAction.repeatForever(
            SKAction.sequence([SKAction.moveBy(x: 400, y: 0, duration: 3.0), SKAction.moveBy(x: -400, y: 0, duration: 3.0)])))
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        if let hat = scene?.childNode(withName: "hat") {
            hat.name = ""
            hat.removeAllActions()
            hat.physicsBody?.isDynamic = true
            hat.run(SKAction.wait(forDuration: 1)) {
                self.createHat()
            }
        }

    }
}