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GameScene.swift
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GameScene.swift
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//
// GameScene.swift
// Pachinko
//
// Created by Julian Moorhouse on 06/08/2019.
// Copyright © 2019 Mindwarp Consultancy Ltd. All rights reserved.
//
import SpriteKit
class GameScene: SKScene, SKPhysicsContactDelegate {
var scoreLabel: SKLabelNode!
var score = 0 {
didSet {
scoreLabel.text = "Score: \(score)"
}
}
var editLabel: SKLabelNode!
var editingMode: Bool = false {
didSet {
if editingMode {
editLabel.text = "Done"
} else {
editLabel.text = "Edit"
}
}
}
override func didMove(to view: SKView) {
let background = SKSpriteNode(imageNamed: "background")
// draw in centre of the screen
background.position = CGPoint(x: 512, y: 384)
background.blendMode = .replace
background.zPosition = -1
addChild(background)
scoreLabel = SKLabelNode(fontNamed: "Chalkduster")
scoreLabel.text = "Score: 0"
scoreLabel.horizontalAlignmentMode = .right
scoreLabel.position = CGPoint(x: 980, y: 700)
addChild(scoreLabel)
editLabel = SKLabelNode(fontNamed: "Chalkduster")
editLabel.text = "Edit"
editLabel.position = CGPoint(x: 80, y: 700)
addChild(editLabel)
physicsBody = SKPhysicsBody(edgeLoopFrom: frame)
physicsWorld.contactDelegate = self
makeSlot(at: CGPoint(x: 128, y: 0), isGood: true)
makeSlot(at: CGPoint(x: 384, y: 0), isGood: false)
makeSlot(at: CGPoint(x: 640, y: 0), isGood: true)
makeSlot(at: CGPoint(x: 896, y: 0), isGood: false)
makeBouncer(at: CGPoint(x: 0, y: 0))
makeBouncer(at: CGPoint(x: 256, y: 0))
makeBouncer(at: CGPoint(x: 512, y: 0))
makeBouncer(at: CGPoint(x: 768, y: 0))
makeBouncer(at: CGPoint(x: 1024, y: 0))
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
guard let touch = touches.first else { return }
let location = touch.location(in: self)
let objects = nodes(at: location)
if objects.contains(editLabel) {
editingMode.toggle()
} else {
if editingMode {
// create a box
let size = CGSize(width: Int.random(in: 16...128), height: 16)
let box = SKSpriteNode(color: UIColor(red: CGFloat.random(in: 0...1), green: CGFloat.random(in: 0...1), blue: CGFloat.random(in: 0...1), alpha: 1), size: size)
// rotation about 180 randomly
box.zRotation = CGFloat.random(in: 0...3)
box.position = location
box.physicsBody = SKPhysicsBody(rectangleOf: box.size)
box.physicsBody?.isDynamic = false
addChild(box)
} else {
let ball = SKSpriteNode(imageNamed: "ballRed")
// Behave as a ball not a square, radius half width of ball
ball.physicsBody = SKPhysicsBody(circleOfRadius: ball.size.width / 2.0)
// Bounciness 0 - none, 1 - super bouncy
ball.physicsBody?.restitution = 0.4
// Which collisons do you want to know about, tell us about all collisions, not efficient in complicated games
ball.physicsBody?.contactTestBitMask = ball.physicsBody?.collisionBitMask ?? 0
ball.position = location
ball.name = "ball"
addChild(ball)
}
}
}
func didBegin(_ contact: SKPhysicsContact) {
guard let nodeA = contact.bodyA.node else { return }
guard let nodeB = contact.bodyB.node else { return }
if nodeA.name == "ball" {
collision(between: nodeA, object: nodeB)
} else if nodeB.name == "ball" {
collision(between: nodeB, object: nodeA)
}
}
func makeBouncer(at position: CGPoint) {
let bouncer = SKSpriteNode(imageNamed: "bouncer")
bouncer.position = position
bouncer.physicsBody = SKPhysicsBody(circleOfRadius: bouncer.size.width / 2)
// object will collide, but won't move as a result
bouncer.physicsBody?.isDynamic = false
addChild(bouncer)
}
func makeSlot(at position: CGPoint, isGood: Bool) {
var slotBase: SKSpriteNode
var slotGlow: SKSpriteNode
if isGood {
slotBase = SKSpriteNode(imageNamed: "slotBaseGood")
slotGlow = SKSpriteNode(imageNamed: "slotGlowGood")
slotBase.name = "good"
} else {
slotBase = SKSpriteNode(imageNamed: "slotBaseBad")
slotGlow = SKSpriteNode(imageNamed: "slotGlowBad")
slotBase.name = "bad"
}
slotBase.position = position
slotGlow.position = position
slotBase.physicsBody = SKPhysicsBody(rectangleOf: slotBase.size)
slotBase.physicsBody?.isDynamic = false
addChild(slotBase)
addChild(slotGlow)
// Spin half a circle over 10 seconds
let spin = SKAction.rotate(byAngle: .pi, duration: 10)
let spinForever = SKAction.repeatForever(spin)
slotGlow.run(spinForever)
}
func collision(between ball: SKNode, object: SKNode) {
if object.name == "good" {
destroy(ball: ball)
score += 1
} else if object.name == "bad" {
destroy(ball: ball)
score -= 1
}
}
func destroy(ball: SKNode) {
if let firePartices = SKEmitterNode(fileNamed: "FireParticles") {
firePartices.position = ball.position
addChild(firePartices)
}
ball.removeFromParent()
}
}