我正在用Spritekit开发2D游戏。如果节点的旋转速度高于0.25秒，但低于此数字，我的gameOver函数就会调用，我的代码就可以正常工作。
除非spinSpeed最低为0.25或更高，否则此游戏永远不会调用gameOver函数。
我想知道如何对didBeginContact函数进行精确的计算。
我编码有误吗？
任何帮助将不胜感激。
以下是代码：
class EasyScene: SKScene, UIGestureRecognizerDelegate, SKPhysicsContactDelegate {
var leftSection = SKSpriteNode()
var rightSection = SKSpriteNode()
var bottomSection = SKSpriteNode()
var colorStick = SKSpriteNode()
let leftSectionCat:UInt32 = 0x1 << 0
let rightSectionCat:UInt32 = 0x1 << 1
let bottomSectionCat:UInt32 = 0x1 << 2
let stickSectionCat:UInt32 = 0x1 << 3
let borderCat : UInt32 = 0x1 << 8
var isOverOnLeft : Bool = false
var isOverOnRight : Bool = false
var isOverOnBottom : Bool = false
var starterTouch : Int = 0
var enteredOnLeft : Bool = false
var enteredOnRight : Bool = false
var enteredOnBottom : Bool = false
var zRotationValuesOfStick : [CGFloat] = []
var spinSpeed : CGFloat = 0.45
var stickLeftEquals : [String : String ] = ["stickBlue" : "leftBlue","stickOrange" : "leftOrange","stickRed" : "leftRed", "stickGreen" : "leftGreen", "stickYellow" : "leftYellow","stickGray" : "leftGray"]
var stickRightEquals : [String : String ] = ["stickBlue" : "rightBlue","stickOrange" : "rightOrange","stickRed" : "rightRed", "stickGreen" : "rightGreen", "stickYellow" : "rightYellow","stickGray" : "rightGray"]
var stickBottomEquals : [String : String ] = ["stickBlue" : "bottomBlue","stickOrange" : "bottomOrange","stickRed" : "bottomRed", "stickGreen" : "bottomGreen", "stickYellow" : "bottomYellow","stickGray" : "bottomGray"]
var leftSectionTextureDatabase : [String] = ["leftBlue", "leftOrange", "leftRed", "leftGreen", "leftYellow", "leftGray"]
var selectedLeftSectionTexture : String = ""
var rightSectionTextureDatabase : [String] = ["rightBlue", "rightOrange", "rightRed", "rightGreen", "rightYellow", "rightGray"]
var selectedRightSectionTexture : String = ""
var bottomSectionTextureDatabase : [String] = ["bottomBlue", "bottomOrange", "bottomRed", "bottomGreen", "bottomYellow", "bottomGray"]
var selectedBottomSectionTexture : String = ""
var stickTextureDatabase : [String] = ["stickBlue", "stickOrange", "stickRed", "stickGreen", "stickYellow", "stickGray"]
var selectedStickTexture : [String] = []
var currentStickColor : String = ""
var pickedColors : [Int] = []
var colorStickColors : [Int] = []
var isGameOver : Bool = false
override func didMove(to view: SKView) {
self.physicsWorld.contactDelegate = self
pick3Colors()
assignColorToColorStick()
createStickInBetween()
makeBordersAvaliable()
assignSectionColors()
pickStartingStickColor()
someFunction()
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if starterTouch == 0 {
let randomStarter = Int(arc4random_uniform(2))
var move = SKAction()
if randomStarter == 0 {
move = SKAction.rotate(byAngle: 1, duration: TimeInterval(spinSpeed))
}else{
move = SKAction.rotate(byAngle: -1, duration: TimeInterval(spinSpeed))
}
let repeatIt = SKAction.repeatForever(move)
colorStick.run(repeatIt)
starterTouch = starterTouch + 1
}else{
checkIfItIsRightMove()
changeColorOfStick()
turnOpposite()
}
}
override func update(_ currentTime: TimeInterval) {
if zRotationValuesOfStick.count > 2{
zRotationValuesOfStick.removeFirst()
}
let radians:CGFloat = colorStick.zRotation
let degrees = radians * 180 / CGFloat(Double.pi)
zRotationValuesOfStick.append(degrees)
}
func gameOver(){
isGameOver = true
colorStick.removeAllActions()
leftSection.physicsBody?.collisionBitMask = borderCat | rightSectionCat | bottomSectionCat | stickSectionCat
rightSection.physicsBody?.collisionBitMask = borderCat | leftSectionCat | bottomSectionCat | stickSectionCat
bottomSection.physicsBody?.collisionBitMask = borderCat | leftSectionCat | rightSectionCat | stickSectionCat
colorStick.physicsBody?.collisionBitMask = borderCat | leftSectionCat | rightSectionCat | bottomSectionCat
colorStick.physicsBody?.pinned = false
leftSection.physicsBody?.pinned = false
rightSection.physicsBody?.pinned = false
bottomSection.physicsBody?.pinned = false
colorStick.physicsBody?.affectedByGravity = true
leftSection.physicsBody?.affectedByGravity = true
rightSection.physicsBody?.affectedByGravity = true
bottomSection.physicsBody?.affectedByGravity = true
leftSection.physicsBody?.allowsRotation = true
rightSection.physicsBody?.allowsRotation = true
bottomSection.physicsBody?.allowsRotation = true
leftSection.physicsBody?.isDynamic = true
rightSection.physicsBody?.isDynamic = true
bottomSection.physicsBody?.isDynamic = true
}
func increaseSpeed (incomingSpeed : CGFloat){
if incomingSpeed <= 0.15{
// spinSpeed = spinSpeed - 0.005
print("MAX!")
}else{
spinSpeed = spinSpeed - 0.010
}
}
func checkIfItIsRightMove (){
if isOverOnLeft == true && isOverOnRight == false && isOverOnBottom == false && isGameOver == false{
if stickLeftEquals["\(currentStickColor)"] == selectedLeftSectionTexture{
enteredOnLeft = false
if enteredOnLeft == false{
increaseSpeed(incomingSpeed: spinSpeed)
}
acceptedMove()
}else if stickLeftEquals["\(currentStickColor)"] != selectedLeftSectionTexture{
gameOver()
}
}
if isOverOnLeft == false && isOverOnRight == true && isOverOnBottom == false && isGameOver == false{
if stickRightEquals["\(currentStickColor)"] == selectedRightSectionTexture{
enteredOnRight = false
if enteredOnRight == false{
increaseSpeed(incomingSpeed: spinSpeed)
}
acceptedMove()
}else if stickRightEquals["\(currentStickColor)"] != selectedRightSectionTexture{
gameOver()
}
}
if isOverOnLeft == false && isOverOnRight == false && isOverOnBottom == true && isGameOver == false{
if stickBottomEquals["\(currentStickColor)"] == selectedBottomSectionTexture{
enteredOnBottom = false
if enteredOnBottom == false{
increaseSpeed(incomingSpeed: spinSpeed)
}
acceptedMove()
}else if stickBottomEquals["\(currentStickColor)"] != selectedBottomSectionTexture{
gameOver()
}
}
}
func didBegin(_ contact: SKPhysicsContact) {
let collusion:UInt32 = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
if collusion == leftSectionCat | stickSectionCat && collusion != rightSectionCat | stickSectionCat && collusion != bottomSectionCat | stickSectionCat {
if stickLeftEquals["\(currentStickColor)"] == selectedLeftSectionTexture{
enteredOnLeft = true
}
isOverOnLeft = true
isOverOnRight = false
isOverOnBottom = false
}else if collusion != leftSectionCat | stickSectionCat && enteredOnLeft == true && collusion == rightSectionCat | stickSectionCat {
if stickLeftEquals["\(currentStickColor)"] == selectedLeftSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
else if collusion != leftSectionCat | stickSectionCat && enteredOnLeft == true && collusion == bottomSectionCat | stickSectionCat {
if stickLeftEquals["\(currentStickColor)"] == selectedLeftSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
if collusion == rightSectionCat | stickSectionCat && collusion != leftSectionCat | stickSectionCat && collusion != bottomSectionCat | stickSectionCat {
if stickRightEquals["\(currentStickColor)"] == selectedRightSectionTexture{
enteredOnRight = true
}
isOverOnLeft = false
isOverOnRight = true
isOverOnBottom = false
}else if collusion != rightSectionCat | stickSectionCat && enteredOnRight == true && collusion == leftSectionCat | stickSectionCat {
if stickRightEquals["\(currentStickColor)"] == selectedRightSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
else if collusion != rightSectionCat | stickSectionCat && enteredOnRight == true && collusion == bottomSectionCat | stickSectionCat {
if stickRightEquals["\(currentStickColor)"] == selectedRightSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
if collusion == bottomSectionCat | stickSectionCat && collusion != leftSectionCat | stickSectionCat && collusion != rightSectionCat | stickSectionCat {
if stickBottomEquals["\(currentStickColor)"] == selectedBottomSectionTexture{
enteredOnBottom = true
}
isOverOnLeft = false
isOverOnRight = false
isOverOnBottom = true
}else if collusion != bottomSectionCat | stickSectionCat && enteredOnBottom == true && collusion == leftSectionCat | stickSectionCat {
if stickBottomEquals["\(currentStickColor)"] == selectedBottomSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
else if collusion != bottomSectionCat | stickSectionCat && enteredOnBottom == true && collusion == rightSectionCat | stickSectionCat {
if stickBottomEquals["\(currentStickColor)"] == selectedBottomSectionTexture{
if isGameOver == false{
gameOver()
}
}
}
}
func acceptedMove(){
sessionScore = sessionScore + 1
sessionScoreNumber.text = "\(sessionScore)"
let movement = SKAction.scale(to: 1.2, duration: 0.5)
let loop = SKAction.repeat(movement, count: 1)
let movement2 = SKAction.scale(to: 1, duration: 0.5)
let loop2 = SKAction.repeat(movement2, count: 1)
let seq = SKAction.sequence([loop, loop2])
sessionScoreNumber.run(seq)
}
func createStickInBetween(){
let colorStickTexture = SKTexture(imageNamed: selectedStickTexture[0])
colorStick = SKSpriteNode(texture: colorStickTexture)
colorStick.position.x = 211.671
colorStick.position.y = -400.74
colorStick.size.width = 31.524
colorStick.size.height = 124.74
colorStick.anchorPoint.x = 0.5
colorStick.anchorPoint.y = 0
colorStick.zPosition = 2
let centerPoint = CGPoint(x:colorStick.size.width / 2 - (colorStick.size.width * colorStick.anchorPoint.x), y:colorStick.size.height / 2 - (colorStick.size.height * colorStick.anchorPoint.y))
colorStick.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: 15, height: colorStick.size.height), center: centerPoint)
colorStick.name = "denemeColor"
colorStick.physicsBody?.isDynamic = true
colorStick.physicsBody?.pinned = true
colorStick.physicsBody?.allowsRotation = true
colorStick.physicsBody?.affectedByGravity = false
colorStick.physicsBody?.usesPreciseCollisionDetection = true
self.addChild(colorStick)
colorStick.physicsBody?.categoryBitMask = stickSectionCat
}
func makeBordersAvaliable (){
let borderSideTexture = SKTexture(imageNamed: "sideBorders")
borderSide = SKSpriteNode(texture: borderSideTexture)
borderSide.physicsBody = SKPhysicsBody(texture: borderSideTexture, size: CGSize(width: borderSide.size.width, height: borderSide.size.height))
borderSide.position.x = 207
borderSide.position.y = -368
borderSide.size.width = 414
borderSide.size.height = 736
borderSide.anchorPoint.x = 0.5
borderSide.anchorPoint.y = 0.5
borderSide.zPosition = 5
borderSide.name = "bs"
borderSide.physicsBody?.isDynamic = false
borderSide.physicsBody?.allowsRotation = false
borderSide.physicsBody?.affectedByGravity = false
borderSide.alpha = 0
self.addChild(borderSide)
borderSide.physicsBody?.categoryBitMask = borderCat
}
func someFunction(){
leftSection.physicsBody?.contactTestBitMask = stickSectionCat
bottomSection.physicsBody?.contactTestBitMask = stickSectionCat
rightSection.physicsBody?.contactTestBitMask = stickSectionCat
colorStick.physicsBody?.collisionBitMask = 0x1 << 15
}
func turnOpposite(){
if isGameOver != true{
colorStick.removeAllActions()
let lastValue = zRotationValuesOfStick.last!
let getTheLocation = zRotationValuesOfStick.count - 2
let theOneBeforeTheLast = zRotationValuesOfStick[getTheLocation]
let whatIsTheDifference = lastValue - theOneBeforeTheLast
if whatIsTheDifference > 0 {
let turnCounterClockWise = SKAction.rotate(byAngle: -1, duration: TimeInterval(spinSpeed))
let turnCounterClockWiseLoop = SKAction.repeatForever(turnCounterClockWise)
colorStick.run(turnCounterClockWiseLoop)
}else if whatIsTheDifference != 0 && isGameOver == false{
let turnClockWise = SKAction.rotate(byAngle: 1, duration: TimeInterval(spinSpeed))
let turnClockWiseLoop = SKAction.repeatForever(turnClockWise)
colorStick.run(turnClockWiseLoop)
}
}
}
func changeColorOfStick(){
if isGameOver != true {
let randomNumber = Int(arc4random_uniform(3))
var colorViaRandomNumber = selectedStickTexture[randomNumber]
while colorViaRandomNumber == currentStickColor {
let rn = Int(arc4random_uniform(3))
colorViaRandomNumber = selectedStickTexture[rn]
}
currentStickColor = colorViaRandomNumber
colorStick.texture = SKTexture(imageNamed: currentStickColor)
}
}
func pickStartingStickColor(){
let randomNumber = Int(arc4random_uniform(3))
currentStickColor = selectedStickTexture[randomNumber]
colorStick.texture = SKTexture(imageNamed: currentStickColor)
}
func assignSectionColors(){
selectedLeftSectionTexture = leftSectionTextureDatabase[pickedColors[0]]
selectedRightSectionTexture = rightSectionTextureDatabase[pickedColors[1]]
selectedBottomSectionTexture = bottomSectionTextureDatabase[pickedColors[2]]
let leftSectionTexture = SKTexture(imageNamed: selectedLeftSectionTexture)
leftSection = SKSpriteNode(texture: leftSectionTexture)
leftSection.physicsBody = SKPhysicsBody(texture: leftSectionTexture, size: CGSize(width: leftSection.size.width, height: leftSection.size.height))
leftSection.position.x = 141.352
leftSection.position.y = -372.722
leftSection.size.width = 172.16
leftSection.size.height = 257.85
leftSection.anchorPoint.x = 0.5
leftSection.anchorPoint.y = 0.5
leftSection.zPosition = 1
leftSection.name = "leftDeneme"
leftSection.physicsBody?.isDynamic = false
leftSection.physicsBody?.allowsRotation = false
leftSection.physicsBody?.affectedByGravity = false
leftSection.physicsBody?.usesPreciseCollisionDetection = true
self.addChild(leftSection)
let rightSectionTexture = SKTexture(imageNamed: selectedRightSectionTexture)
rightSection = SKSpriteNode(texture: rightSectionTexture)
rightSection.physicsBody = SKPhysicsBody(texture: rightSectionTexture, size: CGSize(width: rightSection.size.width, height: rightSection.size.height))
rightSection.position.x = 298.386
rightSection.position.y = -373.071
rightSection.size.width = 141.908
rightSection.size.height = 257.152
rightSection.anchorPoint.x = 0.5
rightSection.anchorPoint.y = 0.5
rightSection.zPosition = 1
rightSection.physicsBody?.isDynamic = false
rightSection.physicsBody?.allowsRotation = false
rightSection.physicsBody?.affectedByGravity = false
rightSection.physicsBody?.usesPreciseCollisionDetection = true
self.addChild(rightSection)
let bottomSectionTexture = SKTexture(imageNamed: selectedBottomSectionTexture)
bottomSection = SKSpriteNode(texture: bottomSectionTexture)
bottomSection.physicsBody = SKPhysicsBody(texture: bottomSectionTexture, size: CGSize(width: bottomSection.size.width, height: bottomSection.size.height))
bottomSection.position.x = 212.141
bottomSection.position.y = -515.223
bottomSection.size.width = 242.19
bottomSection.size.height = 93.846
bottomSection.anchorPoint.x = 0.5
bottomSection.anchorPoint.y = 0.5
bottomSection.zPosition = 1
bottomSection.physicsBody?.isDynamic = false
bottomSection.physicsBody?.allowsRotation = false
bottomSection.physicsBody?.affectedByGravity = false
bottomSection.physicsBody?.usesPreciseCollisionDetection = true
self.addChild(bottomSection)
leftSection.physicsBody?.categoryBitMask = leftSectionCat
rightSection.physicsBody?.categoryBitMask = rightSectionCat
bottomSection.physicsBody?.categoryBitMask = bottomSectionCat
}
func assignColorToColorStick(){
selectedStickTexture.append(stickTextureDatabase[pickedColors[0]])
selectedStickTexture.append(stickTextureDatabase[pickedColors[1]])
selectedStickTexture.append(stickTextureDatabase[pickedColors[2]])
}
func pick3Colors(){
while pickedColors.count < 3 {
let randomNumber = Int(arc4random_uniform(6))
let howManyElements = pickedColors.count
if howManyElements == 0 {
pickedColors.append(randomNumber)
}else if howManyElements == 1 {
if randomNumber != pickedColors[0]{
pickedColors.append(randomNumber)
}
}else if howManyElements == 2 {
if randomNumber != pickedColors[0] && randomNumber != pickedColors[1] {
pickedColors.append(randomNumber)
}
}
}
}
}