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项目介绍：
注意：因为网站上传大小的限制，上传的压缩包中缺少音乐文件，要获得完成的代码，请在文章底部的GitHub下载！
/*
* 游戏元素使用条款及注意事项
*
* 游戏中的所有元素全部由iFIERO所原创(除注明引用之外)，包括人物、音乐、场景等;
* 创作的初衷就是让更多的游戏爱好者可以在开发游戏中获得自豪感 — 让手机游戏开发变得简单;
* 秉着开源分享的原则,iFIERO发布的游戏都尽可能的易懂实用，并开放所有源码;
* 任何使用者都可以使用游戏中的代码块，也可以进行拷贝、修改、更新、升级，无须再经过iFIERO的同意;
* 但这并不表示可以任意复制、拆分其中的游戏元素:
* 用于[商业目的]而不注明出处;
* 用于[任何教学]而不注明出处;
* 用于[游戏上架]而不注明出处；
* 另外,iFIERO有商用授权游戏元素，获得iFIERO官方授权后，即无任何限制;
* 请尊重帮助过你的iFIERO的知识产权，非常感谢;
*
* Created by VANGO杨 && ANDREW陈
* Copyright © 2018 iFiero. All rights reserved.
* www.iFIERO.com
* iFIERO — 让手机游戏开发变得简单
*
* BreakOutGame 弹潮V 在此游戏中您将获得如下主要技能:
*
* 1.GameScene Size 学习精确适配各种iPhone尺寸;
* 2.GameplayKit 学习如何应用GameplayKit切换游戏状态;
* 3.Velocity 三角函数求向量、判断球的速度;
* 4.TouchBegan 学习触碰移动事件直接写在精灵中
* 5.SoundManager 学习设置单例管理所有音乐;
* 6.PhysicsBody 学习最基本物理碰撞特性 反弹 摩擦力;
* 7.SKNode+SKScene 建立空节点+引入自定义Scene+node.copy+isPaused=false (重要技能)
* 8.Convert 学习转换其它场景Scene的坐标到当前GameScene坐标;
*
*/
import SpriteKit
import GameplayKit
class GameScene: SKScene,SKPhysicsContactDelegate {
//MARK: - StateMachine 场景中各个舞台State
lazy var stateMachine:GKStateMachine = GKStateMachine(states: [
WaitingState(scene: self),
PlayState(scene: self),
GameOverState(scene: self)])
private var fgNode = SKNode()
private var ballNode = BallNode()
private var shoseOverlay:SKSpriteNode! /// 鞋子精灵Parent 位于 shoseOverlay 节点下
private var gameSceneOverlay:SKSpriteNode! //复制的鞋子精灵
private var shoseNode:ShoseNodeClass! /// 鞋子精灵
private var skateboard = Skateboard()
private var maxAspectRatio:CGFloat! /// 屏幕分辩率;
private var ballMaxSpeed:CGFloat = 1500.00 // 最大速度；
private var ballInitSpeed:CGFloat = 1000.00 // 初始速度；
private var playableRect:CGRect! /// 可视范围
private var playableHeight:CGFloat = 0.0 /// 可视范围的高度
private var playableMargin:CGFloat = 0.0 /// 可视范围的起点
var learnTemp:SKSpriteNode!
var playButtonTemp:SKSpriteNode!
private var dt:TimeInterval = 0 /// 每一frame的时间差
private var lastUpdateTimeInterval:TimeInterval = 0
override func didMove(to view: SKView) {
self.physicsWorld.gravity = CGVector(dx: 0, dy: 0) /// 物理世界的重力
self.physicsWorld.contactDelegate = self /// 碰撞代理
learnTemp = childNode(withName: "learnTemp") as! SKSpriteNode
playButtonTemp = childNode(withName: "playButton") as! SKSpriteNode
initCheckDevice()
setupBall() /// 球
setupSkateboard() /// 滑板
setupShose() /// 鞋子
setupBgMusic() // 加入背景音乐;
stateMachine.enter(WaitingState.self) // 进入WaitingState
}
// option+command+->展开
// MARK: - 检测是哪种设备
func initCheckDevice(){
if UIDevice.current.isPhoneX() {
maxAspectRatio = 2.16 /// iPhoneX 2.16 ratio
}else {
maxAspectRatio = UIDevice.current.isPad() ? (4.0 / 3.0) : (16.0 / 9.0) /// iPhone 16:9,iPad 4:3
}
/// 画出可视区域
drawPayableArea(size: self.size,ratio: maxAspectRatio)
}
// MARK: - command + option + 左or右箭头 可以折叠/拓展函数
// MARK: - 画出可视区域
func drawPayableArea(size:CGSize,ratio:CGFloat){
/*
/// 安全区域即用户交互的区域，非可视区域 (iPhoneX的安全区域 < 可视区域)
let safeInsetTop = self.size.height * AREA_INSET_WIDTH_TOP / iPhoneX_REAL_HEIGHT
let safeInsetBottom = self.size.height * AREA_INSET_WIDTH_BOTTOM / iPhoneX_REAL_HEIGHT
let safeHeight = self.size.height - safeInsetTop - safeInsetBottom // 安全区域的高度
*/
playableHeight = size.width / ratio
playableMargin = (size.height - playableHeight ) / 2.0 /// P70
playableRect = CGRect(x: 0, y: playableMargin, width: size.width, height: playableHeight) /// 注意 scene的anchorPoint(0,0)原点的位置;
let shapeFrame = SKShapeNode(rect: playableRect)
shapeFrame.zPosition = 1
shapeFrame.strokeColor = SKColor.red
shapeFrame.lineWidth = 5.0
addChild(shapeFrame)
/// 可视区域的物理状态
let playableBody = SKPhysicsBody(edgeLoopFrom: playableRect)
playableBody.friction = 0
self.physicsBody = playableBody
playableBody.categoryBitMask = PhysicsCategory.Frame
playableBody.contactTestBitMask = PhysicsCategory.Ball
playableBody.collisionBitMask = PhysicsCategory.Ball
/// 地板
setupFloor()
}
//MARK: - 地板
func setupFloor(){
let floor = SKNode()
let startPoint = CGPoint(x: 0.0, y: playableMargin)
let endPoint = CGPoint(x: self.size.width, y: playableMargin)
self.addChild(floor)
floor.physicsBody = SKPhysicsBody(edgeFrom: startPoint, to: endPoint)
floor.physicsBody?.categoryBitMask = PhysicsCategory.Floor
floor.physicsBody?.contactTestBitMask = PhysicsCategory.Ball /// 和球相碰
}
//MARK: - 球
func setupBall(){
ballNode = childNode(withName: "ball") as! BallNode
ballNode.setup(scene:self.scene!) // 导入size与physicsBody
}
func runBallRotate(){
ballNode.rotate()
}
func runBall(){
ballNode.physicsBody?.applyImpulse(CGVector(dx: 100.0, dy: -ballInitSpeed)) /// dy的绝对值越大 球速越快; - 表示向下
}
func runBallInvincible(){
// 即碰到底部不会lose掉game
print("Invincible")
ballNode.physicsBody?.categoryBitMask = PhysicsCategory.None
}
//MARK: - 滑板
func setupSkateboard(){
skateboard = childNode(withName: "skateboard") as! Skateboard
skateboard.setup(scene: self.scene!)
}
//MARK: - 鞋子
func setupShose(){
// 一、直接在场景中加入节点，不利于重复利用,以后每一关卡都要重建，非常麻烦;
// 1.代码创建精灵节点到GameScene
// let xPos = self.frame.width / 2
// let yPos = playableHeight - 100
// shoseNode = ShoseNode.newInstance(scene: self)
// shoseNode.position = CGPoint(x: xPos, y: yPos)
// self.addChild(shoseNode)
// 2.用Class可视化加入精灵节点
/*
shoseNode = childNode(withName: "shose") as! ShoseNodeClass
shoseNode.newInstance(scene: self.scene!)
let emitter = SKEmitterNode(fileNamed: "Fire")!
emitter.zPosition = 1
emitter.targetNode = shoseNode
emitter.setScale(3.0)
shoseNode.addChild(emitter)
*/
// 二、引用其它scene的节点到当前Scene中，需要convert转化到当前GameScene的坐标
var sceneName = ""
sceneName = (CGFloat.random(1, max: 100) > 50) ? "ShoseCrossScene" : "ShoseScene"
let overlayScene = SKScene(fileNamed: sceneName)!
let overlayShose = overlayScene.childNode(withName: "Overlay") as! SKSpriteNode
gameSceneOverlay = overlayShose.copy() as! SKSpriteNode
overlayShose.removeFromParent() // 移除旧的
/* 留意SpirteKit的巨坑
* When an overlay node with actions is copied there is currently a SpriteKit bug
* where the node’s isPaused property might be set to true
* 一定要记得设置为 false 或者所有gamesceneOverlay内的子节点的所有action都不起作用
*/
gameSceneOverlay.isPaused = false;
gameSceneOverlay.enumerateChildNodes(withName: "shose") { (node, _) in
let sprite = node as! ShoseNodeClass
sprite.newInstance(scene: self.scene!) // 加入物理体;
}
gameSceneOverlay.zPosition = 2
let yPos = self.frame.size.height - playableMargin - 150;
gameSceneOverlay.position = CGPoint(x: 1024, y: yPos)
self.addChild(gameSceneOverlay)
}
//MARK:背景音乐
func setupBgMusic(){
let music = SKAudioNode(fileNamed: "bgmusic.mp3")
music.autoplayLooped = true
self.addChild(music)
}
// 返回 -80.0 或 80.0 角度50 已经很小了;
func randomDirection() -> CGFloat {
var xSpeed:CGFloat = 80.0
if CGFloat.random(1, max: 100) > 50 {
xSpeed = -xSpeed
}
return xSpeed
}
//MARK: - 时时校验球的运动速度和方向
func verifyBallSpeed(_ dt:TimeInterval){
let xSpeed:CGFloat = abs((ballNode.physicsBody?.velocity.dx)!) /// 水平方向的dx
let ySpeed:CGFloat = abs((ballNode.physicsBody?.velocity.dy)!)
/// print("xSpeed:" , xSpeed)
/// 为什么xSpeed是100，不是凭空乱猜的,可以根据打印出来的xSpeed进行查看(即快接近垂直时的角度差不多为50);
if xSpeed < 100 { // xSpeed很小，表示球正在上下来回运动 必须赋一个值 让球再次向左右水平方向运动;
ballNode.physicsBody?.applyImpulse(CGVector(dx: randomDirection(), dy: 0.0))
}
if ySpeed < 100 {
ballNode.physicsBody?.applyImpulse(CGVector(dx: 0.0, dy: randomDirection()))
}
/// 三角函数 C(斜边)= sqrt(a*a + b*b) 得出球的运动速度
let ballSpeed = sqrt((ballNode.physicsBody?.velocity.dx)! * (ballNode.physicsBody?.velocity.dx)! + (ballNode.physicsBody?.velocity.dy)! * (ballNode.physicsBody?.velocity.dy)!)
/// 防止球的运动速度过快 把球的速度打印出来 就可以知道大概 maxSpeed要设置多少了;
ballNode.physicsBody?.linearDamping = (ballSpeed > ballMaxSpeed) ? 0.2 : 0.0
//print("ballSpeed",ballSpeed);
}
// 特效果汁
func emitParticles(particleName: String, sprite: SKSpriteNode) {
let scenePos = convert(sprite.position, from: sprite.parent!)
let emitter = SKEmitterNode(fileNamed: "Fire")!
emitter.zPosition = 5 // 位于鞋子的上方;
emitter.position = scenePos
emitter.setScale(3.0)
self.addChild(emitter)
let node = sprite as! ShoseNodeClass
node.runShake(scene: self.scene!)
sprite.run(SKAction.sequence([
SKAction.wait(forDuration: TimeInterval(0.5)),
//SKAction.scale(to: 0.0, duration: TimeInterval(0.08)),
SKAction.fadeAlpha(to: 0.0, duration: TimeInterval(0.3)),
SKAction.run {
emitter.removeFromParent()
},
SKAction.run {
sprite.removeFromParent()
},
SKAction.run {
// print ("设置copy()后的精灵节点的isPaused=false后，此行才会执行")
}
]))
}
func restartGame(){
let newScene = GameScene(fileNamed: "GameScene")!
newScene.size = CGSize(width: SCENE_WIDTH, height: SCENE_HEIGHT)
newScene.anchorPoint = CGPoint(x: 0, y: 0)
newScene.scaleMode = .aspectFill
let transition = SKTransition.crossFade(withDuration: TimeInterval(0.5))
view?.presentScene(newScene, transition:transition)
}
//MARK: - 实现物理碰撞代理SKPhysicsContactDelegate的didBegin方法
func didBegin(_ contact: SKPhysicsContact) {
let bodyA:SKPhysicsBody
let bodyB:SKPhysicsBody
if contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask {
bodyA = contact.bodyA
bodyB = contact.bodyB
}else{
bodyA = contact.bodyB
bodyB = contact.bodyA
}
/// 球和四周发生碰撞
if (bodyA.categoryBitMask == PhysicsCategory.Ball && bodyB.categoryBitMask == PhysicsCategory.Frame) {
}
/// 球和鞋子发生碰撞
if (bodyA.categoryBitMask == PhysicsCategory.Ball && bodyB.categoryBitMask == PhysicsCategory.Shose) {
// print(PhysicsCategory.Ball ,PhysicsCategory.Shose)
emitParticles(particleName: "Fire", sprite: bodyB.node as! SKSpriteNode)
bodyB.node?.physicsBody?.categoryBitMask = PhysicsCategory.None
}
/// 球和滑板发生碰撞
if (bodyA.categoryBitMask == PhysicsCategory.Ball && bodyB.categoryBitMask == PhysicsCategory.Skateboard) {
//print("Skateboard")
self.run(SoundManager.shareInstanced.hitskateboard)
}
/// 球和地板发生碰撞
if (bodyA.categoryBitMask == PhysicsCategory.Ball && bodyB.categoryBitMask == PhysicsCategory.Floor) {
//print("Game Over")
self.run(SoundManager.shareInstanced.gameover)
bodyB.node?.physicsBody?.categoryBitMask = PhysicsCategory.None
bodyA.node?.physicsBody?.linearDamping = 1.0 /// 阻力为1.0
bodyA.node?.physicsBody?.restitution = 0.7 /// 反弹;
self.physicsWorld.gravity = CGVector(dx: 0.0, dy: -9.8)
stateMachine.enter(GameOverState.self)
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
guard let touch = touches.first else {
return
}
// 当 physicsWorld.body(at: touchLocation)时
// 采用atPoint 取得场景中的的精灵
let touchLocation = touch.location(in: self) ///获得点击的位置
let nodeAtPoint = self.atPoint(touchLocation) //返回SKNode
/// 判断目前的GameScene场景舞台是哪个state
switch stateMachine.currentState {
case is WaitingState:
/// 判断是否是点击了PlayButton
if nodeAtPoint.name == "playButton" {
stateMachine.enter(PlayState.self)
}
if nodeAtPoint.name == "learnTemp" {
print("weird")
UIApplication.shared.open(URL(string: "http://www.iFIERO.com")!, options: [:], completionHandler: { (error) in
print("jump to http://www.iFiero.com")
})
}
case is PlayState:
print("playing")
case is GameOverState:
if nodeAtPoint.name == "tapToPlay" {
restartGame()
}
default:
break;
}
}
func gameOver(){
// 进入游戏结束的state
stateMachine.enter(GameOverState.self)
ballNode.physicsBody?.affectedByGravity = true
self.physicsWorld.gravity = CGVector(dx: 0, dy: -9.8)
}
func isGameWon() -> Bool {
// 初始值 为 0 ，表示没有shose了;
var numberOfShoses = 0
// 这个是判断是不是还有shose，有则为 1
gameSceneOverlay.enumerateChildNodes(withName: "shose") { node, _ in
numberOfShoses = 1
}
return numberOfShoses == 0 // 真或者假 numberOfShoses >0 返回假
}
//MARK: - 时时更新
override func update(_ currentTime: TimeInterval) {
/// 获取时间差
if lastUpdateTimeInterval == 0 {
lastUpdateTimeInterval = currentTime
}
dt = currentTime - lastUpdateTimeInterval
lastUpdateTimeInterval = currentTime
stateMachine.update(deltaTime: dt) // 调用所有State内的update方法
}
}更多游戏教程：http://www.iFIERO.com
实时更新源码请上GITHUB传送门：https://github.com/apiapia/BreakOutGameVansVTutorial
