Swift func didBeginContact 未调用
Swift func didBeginContact Not Called
当物体在两件事物之间通过时，我试图增加我的分数
但是我的函数 didBeginContact 没有被调用我试图添加一个断点但是调试但它仍然没有被调用。
GameScene 代码
import SpriteKit
class GameScene: SKScene, SKPhysicsContactDelegate {
let birdGroup: UInt32 = 0x1 << 0
let enemeyObjectsGroup: UInt32 = 0x1 << 1
let openingGroup: UInt32 = 0x1 << 2
enum objectsZPositions: CGFloat {
case backgorund = 0
case ground = 1
case pipes = 2
case bird = 3
case score = 4
case gameOver = 5
}
var movingGameObjects = SKNode()
var backgorund = SKSpriteNode()
var bird = SKSpriteNode()
var pipeSpeed: NSTimeInterval = 10 // pipe speed
var pipeSpawned: Int = 0
var gameOver: Bool = false
var scoreLabelNode = SKLabelNode()
var score: Int = 0
var gameOverLabelNode = SKLabelNode()
var gameOverStatusNode = SKLabelNode()
override func didMoveToView(view: SKView) {
/* Setup your scene here */
/*
let myLabel = SKLabelNode(fontNamed:"Chalkduster")
myLabel.text = "Hello, World!";
myLabel.fontSize = 45;
myLabel.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame));
self.addChild(myLabel)
*/
self.addChild(movingGameObjects)
// Creating Background
createBackgorund()
// Physics
self.physicsWorld.contactDelegate = self
self.physicsWorld.gravity = CGVectorMake(0, -12) // gravity of the bird
// Adding the bird
let birdTexture1 = SKTexture(imageNamed: "bird1.png")
let birdTexture2 = SKTexture(imageNamed: "bird2.png")
let birdTexture3 = SKTexture(imageNamed: "bird3.png")
let birdTexture4 = SKTexture(imageNamed: "bird4.png")
let birdTexture5 = SKTexture(imageNamed: "bird5.png")
let birdTexture6 = SKTexture(imageNamed: "bird6.png")
let birdTexture7 = SKTexture(imageNamed: "bird7.png")
let birdTexture8 = SKTexture(imageNamed: "bird8.png")
let flyAnimation = SKAction.animateWithTextures([birdTexture1,birdTexture2,birdTexture3,birdTexture4,birdTexture5,birdTexture6,birdTexture7,birdTexture8], timePerFrame: 0.1)
let flyForever = SKAction.repeatActionForever(flyAnimation)
bird = SKSpriteNode(texture: birdTexture1)
bird.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame))
bird.zPosition = objectsZPositions.bird.rawValue
bird.runAction(flyForever, withKey: "birdFly")
bird.physicsBody = SKPhysicsBody(circleOfRadius: bird.size.height/2)
bird.physicsBody?.categoryBitMask = birdGroup
bird.physicsBody?.categoryBitMask = openingGroup | enemeyObjectsGroup
bird.physicsBody?.collisionBitMask = enemeyObjectsGroup
bird.physicsBody?.allowsRotation = false
self.addChild(bird)
// Adding ground
let ground = SKNode()
ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.width, 1))
ground.physicsBody?.dynamic = false // dynamic property we dont want the ground to be affected by the gravity
ground.position = CGPoint(x: CGRectGetMidY(self.frame), y: 0) // ground on the border fo the screen
ground.zPosition = objectsZPositions.ground.rawValue
ground.physicsBody?.categoryBitMask = enemeyObjectsGroup
ground.physicsBody?.collisionBitMask = birdGroup
ground.physicsBody?.contactTestBitMask = birdGroup
self.addChild(ground)
let pipesTimer = NSTimer.scheduledTimerWithTimeInterval(2.5, target: self, selector: "loadPipes", userInfo: nil, repeats: true)
// Score Label Node
scoreLabelNode = SKLabelNode(fontNamed: "ChalkboardSE-Bold")
scoreLabelNode.fontSize = 50
scoreLabelNode.fontColor = SKColor.whiteColor()
scoreLabelNode.position = CGPoint(x: CGRectGetMidX(self.frame), y: self.frame.height - 50) // position of the Score Label
scoreLabelNode.text = "0"
scoreLabelNode.zPosition = objectsZPositions.score.rawValue
self.addChild(scoreLabelNode)
}
func didBeginContact(contact: SKPhysicsContact) {
if contact.bodyA.categoryBitMask == openingGroup || contact.bodyB.categoryBitMask == openingGroup {
score += 1
scoreLabelNode.text = "\(score)"
}
}
func loadPipes() {
pipeSpawned += 2
if pipeSpawned % 10 == 0 {
pipeSpeed -= 0.5 // making the game thougher
}
let gap: CGFloat = bird.size.height * 2.1 // the gap between 2 pipes
let pipe1Texture = SKTexture(imageNamed: "pipe1.png")
let pipe2Texture = SKTexture(imageNamed: "pipe2.png")
let pipe1 = SKSpriteNode(texture: pipe1Texture)
let pipe2 = SKSpriteNode(texture: pipe2Texture)
let randomY: CGFloat = CGFloat(arc4random_uniform(UInt32(self.frame.height * 0.7)))
pipe1.position = CGPoint(x: self.frame.width + pipe1.size.width, y: pipe1.size.height/2 + 170 + randomY + gap/2)
pipe1.physicsBody = SKPhysicsBody(rectangleOfSize: pipe1.size)
pipe1.physicsBody?.dynamic = false
pipe1.physicsBody?.categoryBitMask = enemeyObjectsGroup
pipe1.physicsBody?.collisionBitMask = birdGroup
pipe1.physicsBody?.contactTestBitMask = birdGroup
pipe1.zPosition = objectsZPositions.pipes.rawValue
movingGameObjects.addChild(pipe1)
let movePipe = SKAction.moveToX(-pipe1.size.width, duration: pipeSpeed)
let removePipe = SKAction.removeFromParent()
pipe1.runAction(SKAction.sequence([movePipe,removePipe]))
pipe2.position = CGPoint(x: self.frame.width + pipe2.size.width, y: -pipe2.size.height/2 + 100 + randomY - gap/2)
pipe2.physicsBody = SKPhysicsBody(rectangleOfSize: pipe2.size)
pipe2.physicsBody?.dynamic = false
pipe2.physicsBody?.categoryBitMask = enemeyObjectsGroup
pipe2.physicsBody?.collisionBitMask = birdGroup
pipe2.physicsBody?.contactTestBitMask = birdGroup
pipe2.zPosition = objectsZPositions.pipes.rawValue
movingGameObjects.addChild(pipe2)
pipe2.runAction(SKAction.sequence([movePipe,removePipe]))
// crossing between pipes
let crossing = SKNode()
crossing.position = CGPoint(x: pipe1.position.x + pipe1.size.width/2, y: CGRectGetMidY(self.frame))
crossing.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(1, self.frame.height))
crossing.physicsBody?.dynamic = false
crossing.physicsBody?.categoryBitMask = openingGroup
crossing.physicsBody?.contactTestBitMask = birdGroup
movingGameObjects.addChild(crossing)
crossing.runAction(SKAction.sequence([movePipe, removePipe]))
}
func createBackgorund() {
let backgorundTexture = SKTexture(imageNamed: "background")
let moveBakground = SKAction.moveByX(-backgorundTexture.size().width, y: 0, duration: 25) // background speed
let replaceBackground = SKAction.moveByX(backgorundTexture.size().width, y: 0, duration: 0)
let backgorundSequence = SKAction.sequence([moveBakground, replaceBackground])
let moveBackgroundForever = SKAction.repeatActionForever(backgorundSequence)
for var i: CGFloat = 0; i < 2; i++ {
backgorund = SKSpriteNode(texture: backgorundTexture)
backgorund.position = CGPoint(x: backgorundTexture.size().width/2 + i * backgorundTexture.size().width, y:CGRectGetMidY(self.frame))
backgorund.size.height = self.frame.height
backgorund.zPosition = objectsZPositions.backgorund.rawValue
backgorund.runAction(moveBackgroundForever)
movingGameObjects.addChild(backgorund)
}
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
if gameOver == false {
bird.physicsBody?.velocity = CGVectorMake(0, 0)
bird.physicsBody?.applyImpulse(CGVectorMake(0, 60))
// making the bird face up and down when tapped
let rotateUp = SKAction.rotateToAngle(0.3, duration: 0)
bird.runAction(rotateUp)
} else {
if let scene = GameScene(fileNamed:"GameScene") {
// Configure the view.
let skView = self.view as SKView!
skView.showsFPS = true
skView.showsNodeCount = true
skView.showsPhysics = false
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
/* Set the scale mode to scale to fit the window */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
if gameOver == false {
let rotateDown = SKAction.rotateToAngle(-0.2, duration: 0)
bird.runAction(rotateDown)
}
}
override func update(currentTime: CFTimeInterval) {
/* Called before each frame is rendered */
}
}
您在这一行中有错误：
bird.physicsBody?.categoryBitMask = openingGroup | enemeyObjectsGroup
应该是这样的：
bird.physicsBody?.categoryBitMask = birdGroup
也尝试像这样使用 didBeginContact：
- (void)didBeginContact:(SKPhysicsContact *)contact
{
SKPhysicsBody *firstBody, *secondBody;
if (contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask)
{
firstBody = contact.bodyA;
secondBody = contact.bodyB;
}
else
{
firstBody = contact.bodyB;
secondBody = contact.bodyA;
}
//Handle contacts here
}
如何处理联系人已经在这里评论了很多次，所以我将跳过那个：
提示：
请注意，不会检测到两个静态物体之间的接触 (node.physicsBody.dynamic = false)。我不确定您对哪些联系人感兴趣（可能在 bird 和 crossing/pipe 之间），但即使您当前的设置很好（bird 是动态的，交叉和管道是静态的），您也应该意识到这一点。
当物体在两件事物之间通过时，我试图增加我的分数 但是我的函数 didBeginContact 没有被调用我试图添加一个断点但是调试但它仍然没有被调用。
GameScene 代码
import SpriteKit
class GameScene: SKScene, SKPhysicsContactDelegate {
let birdGroup: UInt32 = 0x1 << 0
let enemeyObjectsGroup: UInt32 = 0x1 << 1
let openingGroup: UInt32 = 0x1 << 2
enum objectsZPositions: CGFloat {
case backgorund = 0
case ground = 1
case pipes = 2
case bird = 3
case score = 4
case gameOver = 5
}
var movingGameObjects = SKNode()
var backgorund = SKSpriteNode()
var bird = SKSpriteNode()
var pipeSpeed: NSTimeInterval = 10 // pipe speed
var pipeSpawned: Int = 0
var gameOver: Bool = false
var scoreLabelNode = SKLabelNode()
var score: Int = 0
var gameOverLabelNode = SKLabelNode()
var gameOverStatusNode = SKLabelNode()
override func didMoveToView(view: SKView) {
/* Setup your scene here */
/*
let myLabel = SKLabelNode(fontNamed:"Chalkduster")
myLabel.text = "Hello, World!";
myLabel.fontSize = 45;
myLabel.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame));
self.addChild(myLabel)
*/
self.addChild(movingGameObjects)
// Creating Background
createBackgorund()
// Physics
self.physicsWorld.contactDelegate = self
self.physicsWorld.gravity = CGVectorMake(0, -12) // gravity of the bird
// Adding the bird
let birdTexture1 = SKTexture(imageNamed: "bird1.png")
let birdTexture2 = SKTexture(imageNamed: "bird2.png")
let birdTexture3 = SKTexture(imageNamed: "bird3.png")
let birdTexture4 = SKTexture(imageNamed: "bird4.png")
let birdTexture5 = SKTexture(imageNamed: "bird5.png")
let birdTexture6 = SKTexture(imageNamed: "bird6.png")
let birdTexture7 = SKTexture(imageNamed: "bird7.png")
let birdTexture8 = SKTexture(imageNamed: "bird8.png")
let flyAnimation = SKAction.animateWithTextures([birdTexture1,birdTexture2,birdTexture3,birdTexture4,birdTexture5,birdTexture6,birdTexture7,birdTexture8], timePerFrame: 0.1)
let flyForever = SKAction.repeatActionForever(flyAnimation)
bird = SKSpriteNode(texture: birdTexture1)
bird.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame))
bird.zPosition = objectsZPositions.bird.rawValue
bird.runAction(flyForever, withKey: "birdFly")
bird.physicsBody = SKPhysicsBody(circleOfRadius: bird.size.height/2)
bird.physicsBody?.categoryBitMask = birdGroup
bird.physicsBody?.categoryBitMask = openingGroup | enemeyObjectsGroup
bird.physicsBody?.collisionBitMask = enemeyObjectsGroup
bird.physicsBody?.allowsRotation = false
self.addChild(bird)
// Adding ground
let ground = SKNode()
ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.width, 1))
ground.physicsBody?.dynamic = false // dynamic property we dont want the ground to be affected by the gravity
ground.position = CGPoint(x: CGRectGetMidY(self.frame), y: 0) // ground on the border fo the screen
ground.zPosition = objectsZPositions.ground.rawValue
ground.physicsBody?.categoryBitMask = enemeyObjectsGroup
ground.physicsBody?.collisionBitMask = birdGroup
ground.physicsBody?.contactTestBitMask = birdGroup
self.addChild(ground)
let pipesTimer = NSTimer.scheduledTimerWithTimeInterval(2.5, target: self, selector: "loadPipes", userInfo: nil, repeats: true)
// Score Label Node
scoreLabelNode = SKLabelNode(fontNamed: "ChalkboardSE-Bold")
scoreLabelNode.fontSize = 50
scoreLabelNode.fontColor = SKColor.whiteColor()
scoreLabelNode.position = CGPoint(x: CGRectGetMidX(self.frame), y: self.frame.height - 50) // position of the Score Label
scoreLabelNode.text = "0"
scoreLabelNode.zPosition = objectsZPositions.score.rawValue
self.addChild(scoreLabelNode)
}
func didBeginContact(contact: SKPhysicsContact) {
if contact.bodyA.categoryBitMask == openingGroup || contact.bodyB.categoryBitMask == openingGroup {
score += 1
scoreLabelNode.text = "\(score)"
}
}
func loadPipes() {
pipeSpawned += 2
if pipeSpawned % 10 == 0 {
pipeSpeed -= 0.5 // making the game thougher
}
let gap: CGFloat = bird.size.height * 2.1 // the gap between 2 pipes
let pipe1Texture = SKTexture(imageNamed: "pipe1.png")
let pipe2Texture = SKTexture(imageNamed: "pipe2.png")
let pipe1 = SKSpriteNode(texture: pipe1Texture)
let pipe2 = SKSpriteNode(texture: pipe2Texture)
let randomY: CGFloat = CGFloat(arc4random_uniform(UInt32(self.frame.height * 0.7)))
pipe1.position = CGPoint(x: self.frame.width + pipe1.size.width, y: pipe1.size.height/2 + 170 + randomY + gap/2)
pipe1.physicsBody = SKPhysicsBody(rectangleOfSize: pipe1.size)
pipe1.physicsBody?.dynamic = false
pipe1.physicsBody?.categoryBitMask = enemeyObjectsGroup
pipe1.physicsBody?.collisionBitMask = birdGroup
pipe1.physicsBody?.contactTestBitMask = birdGroup
pipe1.zPosition = objectsZPositions.pipes.rawValue
movingGameObjects.addChild(pipe1)
let movePipe = SKAction.moveToX(-pipe1.size.width, duration: pipeSpeed)
let removePipe = SKAction.removeFromParent()
pipe1.runAction(SKAction.sequence([movePipe,removePipe]))
pipe2.position = CGPoint(x: self.frame.width + pipe2.size.width, y: -pipe2.size.height/2 + 100 + randomY - gap/2)
pipe2.physicsBody = SKPhysicsBody(rectangleOfSize: pipe2.size)
pipe2.physicsBody?.dynamic = false
pipe2.physicsBody?.categoryBitMask = enemeyObjectsGroup
pipe2.physicsBody?.collisionBitMask = birdGroup
pipe2.physicsBody?.contactTestBitMask = birdGroup
pipe2.zPosition = objectsZPositions.pipes.rawValue
movingGameObjects.addChild(pipe2)
pipe2.runAction(SKAction.sequence([movePipe,removePipe]))
// crossing between pipes
let crossing = SKNode()
crossing.position = CGPoint(x: pipe1.position.x + pipe1.size.width/2, y: CGRectGetMidY(self.frame))
crossing.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(1, self.frame.height))
crossing.physicsBody?.dynamic = false
crossing.physicsBody?.categoryBitMask = openingGroup
crossing.physicsBody?.contactTestBitMask = birdGroup
movingGameObjects.addChild(crossing)
crossing.runAction(SKAction.sequence([movePipe, removePipe]))
}
func createBackgorund() {
let backgorundTexture = SKTexture(imageNamed: "background")
let moveBakground = SKAction.moveByX(-backgorundTexture.size().width, y: 0, duration: 25) // background speed
let replaceBackground = SKAction.moveByX(backgorundTexture.size().width, y: 0, duration: 0)
let backgorundSequence = SKAction.sequence([moveBakground, replaceBackground])
let moveBackgroundForever = SKAction.repeatActionForever(backgorundSequence)
for var i: CGFloat = 0; i < 2; i++ {
backgorund = SKSpriteNode(texture: backgorundTexture)
backgorund.position = CGPoint(x: backgorundTexture.size().width/2 + i * backgorundTexture.size().width, y:CGRectGetMidY(self.frame))
backgorund.size.height = self.frame.height
backgorund.zPosition = objectsZPositions.backgorund.rawValue
backgorund.runAction(moveBackgroundForever)
movingGameObjects.addChild(backgorund)
}
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
if gameOver == false {
bird.physicsBody?.velocity = CGVectorMake(0, 0)
bird.physicsBody?.applyImpulse(CGVectorMake(0, 60))
// making the bird face up and down when tapped
let rotateUp = SKAction.rotateToAngle(0.3, duration: 0)
bird.runAction(rotateUp)
} else {
if let scene = GameScene(fileNamed:"GameScene") {
// Configure the view.
let skView = self.view as SKView!
skView.showsFPS = true
skView.showsNodeCount = true
skView.showsPhysics = false
/* Sprite Kit applies additional optimizations to improve rendering performance */
skView.ignoresSiblingOrder = true
/* Set the scale mode to scale to fit the window */
scene.scaleMode = .AspectFill
skView.presentScene(scene)
}
}
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
if gameOver == false {
let rotateDown = SKAction.rotateToAngle(-0.2, duration: 0)
bird.runAction(rotateDown)
}
}
override func update(currentTime: CFTimeInterval) {
/* Called before each frame is rendered */
}
}
您在这一行中有错误：
bird.physicsBody?.categoryBitMask = openingGroup | enemeyObjectsGroup
应该是这样的：
bird.physicsBody?.categoryBitMask = birdGroup
也尝试像这样使用 didBeginContact：
- (void)didBeginContact:(SKPhysicsContact *)contact
{
SKPhysicsBody *firstBody, *secondBody;
if (contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask)
{
firstBody = contact.bodyA;
secondBody = contact.bodyB;
}
else
{
firstBody = contact.bodyB;
secondBody = contact.bodyA;
}
//Handle contacts here
}
如何处理联系人已经在这里评论了很多次，所以我将跳过那个：
提示：
请注意，不会检测到两个静态物体之间的接触 (node.physicsBody.dynamic = false)。我不确定您对哪些联系人感兴趣（可能在 bird 和 crossing/pipe 之间），但即使您当前的设置很好（bird 是动态的，交叉和管道是静态的），您也应该意识到这一点。