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GameScene.swift
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GameScene.swift
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//
// GameScene.swift
// FlappySwift
//
// Created by Giordano Scalzo on 18/02/2015.
// Copyright (c) 2015 Effective Code. All rights reserved.
//
import SpriteKit
import SIAlertView
enum BodyType : UInt32 {
case bird = 1 // (1 << 0)
case ground = 2 // (1 << 1)
case pipe = 4 // (1 << 2)
case gap = 8 // (1 << 3)
}
class GameScene: SKScene {
private var screenNode: SKSpriteNode!
private var bird: Bird!
private var actors: [Startable]!
private var score = Score()
var gameCenter: GameCenter?
var onPlayAgainPressed:(()->Void)!
var onCancelPressed:(()->Void)!
override func didMoveToView(view: SKView) {
physicsWorld.contactDelegate = self
physicsWorld.gravity = CGVector(dx: 0, dy: -3)
screenNode = SKSpriteNode(color: UIColor.clearColor(), size: self.size)
screenNode.anchorPoint = CGPoint(x: 0, y: 0)
addChild(screenNode)
let sky = Background(textureNamed: "sky", duration:60.0).addTo(screenNode, zPosition: 0)
let city = Background(textureNamed: "city", duration:20.0).addTo(screenNode, zPosition: 1)
let ground = Background(textureNamed: "ground", duration:5.0).addTo(screenNode, zPosition: 2)
ground.zPosition(5)
screenNode.addChild(bodyTextureName("ground"))
bird = Bird(textureNames: ["bird1.png", "bird2.png"]).addTo(screenNode)
bird.position = CGPointMake(30.0, 400.0)
let pipes = Pipes(topPipeTexture: "topPipe.png", bottomPipeTexture: "bottomPipe").addTo(screenNode)
score.addTo(screenNode)
actors = [sky, city, ground, bird, pipes]
for actor in actors {
actor.start()
}
}
override func update(currentTime: CFTimeInterval) {
bird.update()
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
runAction(SKAction.playSoundFileNamed("flap.wav", waitForCompletion: false))
bird.flap()
}
}
private extension GameScene{
func bodyTextureName(textureName: String) -> SKNode{
let image = UIImage(named: textureName)
let width = image!.size.width
let height = image!.size.height
let groundBody = SKNode()
groundBody.position = CGPoint(x: width/2, y: height/2)
groundBody.physicsBody = SKPhysicsBody.rectSize(CGSize(width: width, height: height)){ body in
body.dynamic = false
body.affectedByGravity = false
body.categoryBitMask = BodyType.ground.rawValue
body.collisionBitMask = BodyType.ground.rawValue
}
return groundBody
}
}
// Contacts
extension GameScene: SKPhysicsContactDelegate {
func didBeginContact(contact: SKPhysicsContact) {
let contactMask = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
switch (contactMask) {
case BodyType.pipe.rawValue | BodyType.bird.rawValue:
print("Contact with a pipe")
runAction(SKAction.playSoundFileNamed("punch.wav", waitForCompletion: false))
bird.pushDown()
case BodyType.ground.rawValue | BodyType.bird.rawValue:
print("Contact with ground")
runAction(SKAction.playSoundFileNamed("punch.wav", waitForCompletion: false))
for actor in actors {
actor.stop()
}
let shakeAction = SKAction.shake(0.1, amplitudeX: 20, amplitudeY: 20)
screenNode.runAction(shakeAction)
if let gameCenter = gameCenter{
gameCenter.reportScore(score.currentScore)
}
execAfter(1) {
self.askToPlayAgain()
}
default:
return
}
}
func didEndContact(contact: SKPhysicsContact) {
let contactMask = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
switch (contactMask) {
case BodyType.gap.rawValue | BodyType.bird.rawValue:
print("Contact with gap")
runAction(SKAction.playSoundFileNamed("yeah.mp3", waitForCompletion: false))
score.increase()
default:
return
}
}
}
// Private
private extension GameScene {
func askToPlayAgain() {
let alertView = SIAlertView(title: "Ouch!!", andMessage: "Congratulations! Your score is \(score.currentScore). Play again?")
alertView.addButtonWithTitle("OK", type: .Default) { _ in self.onPlayAgainPressed() }
alertView.addButtonWithTitle("Cancel", type: .Default) { _ in self.onCancelPressed() }
alertView.show()
}
}