最后，我正在尝试检测碰撞，并在接触矩形时删除大理石。我该怎么做？
import CoreMotion
import SpriteKit
import GameplayKit
class GameScene: SKScene, SKPhysicsContactDelegate{
let marbleSprite = SKSpriteNode(imageNamed: "marble")
let marbleSprite1 = SKSpriteNode(imageNamed: "marble")
let marbleSprite2 = SKSpriteNode(imageNamed: "marble")
let marbleSprite3 = SKSpriteNode(imageNamed: "marble")
let marbleSprite4 = SKSpriteNode(imageNamed: "marble")
let marbleSprite5 = SKSpriteNode(imageNamed: "marble")
let marbleSprite6 = SKSpriteNode(imageNamed: "marble")
let marbleSprite7 = SKSpriteNode(imageNamed: "marble")
let marbleSprite8 = SKSpriteNode(imageNamed: "marble")
let marbleSprite9 = SKSpriteNode(imageNamed: "marble")
let rectSprite = SKSpriteNode(imageNamed: "rect")
let rectSprite1 = SKSpriteNode(imageNamed: "rect")
let motionManager = CMMotionManager()
let marbleCategory: UInt32 = 1 << 0
let wallCategory: UInt32 = 2 << 0
let rectCategory: UInt32 = 3 << 0
var teal = SKColor(red: 0, green: 128, blue: 128, alpha: 1)
override func didMove(to view: SKView) {
backgroundColor = teal
marbleSprite.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite.setScale(0.5)
marbleSprite.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite.size.width / 2)
marbleSprite.physicsBody?.allowsRotation = true
marbleSprite.physicsBody?.categoryBitMask = marbleCategory
marbleSprite.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite1.name = "Marble"
marbleSprite1.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite1.setScale(0.5)
marbleSprite1.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite1.size.width / 2)
marbleSprite1.physicsBody?.allowsRotation = true
marbleSprite1.physicsBody?.categoryBitMask = marbleCategory
marbleSprite1.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite1.name = "Marble"
marbleSprite2.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite2.setScale(0.5)
marbleSprite2.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite2.size.width / 2)
marbleSprite2.physicsBody?.allowsRotation = true
marbleSprite2.physicsBody?.categoryBitMask = marbleCategory
marbleSprite2.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite2.name = "Marble"
marbleSprite3.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite3.setScale(0.5)
marbleSprite3.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite3.size.width / 2)
marbleSprite3.physicsBody?.allowsRotation = true
marbleSprite3.physicsBody?.categoryBitMask = marbleCategory
marbleSprite3.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite3.name = "Marble"
marbleSprite4.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite4.setScale(0.5)
marbleSprite4.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite4.size.width / 2)
marbleSprite4.physicsBody?.allowsRotation = true
marbleSprite4.physicsBody?.categoryBitMask = marbleCategory
marbleSprite4.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite4.name = "Marble"
marbleSprite5.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite5.setScale(0.5)
marbleSprite5.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite5.size.width / 2)
marbleSprite5.physicsBody?.allowsRotation = true
marbleSprite5.physicsBody?.categoryBitMask = marbleCategory
marbleSprite5.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite5.name = "Marble"
marbleSprite6.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite6.setScale(0.5)
marbleSprite6.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite6.size.width / 2)
marbleSprite6.physicsBody?.allowsRotation = true
marbleSprite6.physicsBody?.categoryBitMask = marbleCategory
marbleSprite6.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite6.name = "Marble"
marbleSprite7.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite7.setScale(0.5)
marbleSprite7.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite7.size.width / 2)
marbleSprite7.physicsBody?.allowsRotation = true
marbleSprite7.physicsBody?.categoryBitMask = marbleCategory
marbleSprite7.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite7.name = "Marble"
marbleSprite8.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite8.setScale(0.5)
marbleSprite8.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite8.size.width / 2)
marbleSprite8.physicsBody?.allowsRotation = true
marbleSprite8.physicsBody?.categoryBitMask = marbleCategory
marbleSprite8.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite8.name = "Marble"
marbleSprite9.position = CGPoint(x: self.frame.width / 15, y: self.frame.height / 15)
marbleSprite9.setScale(0.5)
marbleSprite9.physicsBody = SKPhysicsBody(circleOfRadius: marbleSprite9.size.width / 2)
marbleSprite9.physicsBody?.allowsRotation = true
marbleSprite9.physicsBody?.categoryBitMask = marbleCategory
marbleSprite9.physicsBody?.collisionBitMask = wallCategory | marbleCategory
self.physicsBody = SKPhysicsBody(edgeLoopFrom: self.frame)
self.physicsBody?.isDynamic = false
self.physicsBody?.categoryBitMask = wallCategory
marbleSprite9.name = "Marble"
rectSprite.position = CGPoint(x: 0, y: self.frame.height / 2)
rectSprite.setScale(3.0)
rectSprite.physicsBody = SKPhysicsBody(rectangleOf: rectSprite.size)
rectSprite.physicsBody?.allowsRotation = false
rectSprite.physicsBody?.categoryBitMask = rectCategory
rectSprite.physicsBody?.collisionBitMask = marbleCategory
rectSprite.physicsBody?.affectedByGravity = false
rectSprite.physicsBody?.isDynamic = false
rectSprite.name = "Rect"
rectSprite1.position = CGPoint(x: 410, y: self.frame.height / 2)
rectSprite1.setScale(3.0)
rectSprite1.physicsBody = SKPhysicsBody(rectangleOf: rectSprite1.size)
rectSprite1.physicsBody?.allowsRotation = false
rectSprite1.physicsBody?.categoryBitMask = rectCategory
rectSprite1.physicsBody?.collisionBitMask = marbleCategory
rectSprite1.physicsBody?.affectedByGravity = false
rectSprite1.physicsBody?.isDynamic = false
rectSprite1.name = "Rect"
physicsWorld.gravity = CGVector(dx: 0, dy: 0)
addChild(marbleSprite)
addChild(marbleSprite1)
addChild(marbleSprite2)
addChild(marbleSprite3)
addChild(marbleSprite4)
addChild(marbleSprite5)
addChild(marbleSprite6)
addChild(marbleSprite7)
addChild(marbleSprite8)
addChild(marbleSprite9)
addChild(rectSprite)
addChild(rectSprite1)
motionManager.startAccelerometerUpdates()
}
override func update(_ currentTime: TimeInterval) {
if let accelerometerData = motionManager.accelerometerData {
print(accelerometerData)
physicsWorld.gravity = CGVector(dx: accelerometerData.acceleration.x * 10, dy: accelerometerData.acceleration.y * 10)
}
}
func didBegin(_ contact: SKPhysicsContact) {
var firstBody = SKPhysicsBody()
var secondBody = SKPhysicsBody()
if contact.bodyA.node?.name == "Marble" {
firstBody = contact.bodyA
secondBody = contact.bodyB
} else {
firstBody = contact.bodyB
secondBody = contact.bodyA
}
if firstBody.node?.name == "Marble" && secondBody.node?.name == "Rect" {
secondBody.node?.removeFromParent()
}
}
}
我认为会发生的事情是，一旦大理石接触到矩形，大理石就会消失，然后消失。实际发生的事情是当大理石撞击矩形时，没有任何反应。我做错了吗？
答案 0 :(得分：0)
尝试进行这些更改并设置联系人委托。
let marbleCategory: UInt32 = 0x1 << 0
let wallCategory: UInt32 = 0x1 << 1
let rectCategory: UInt32 = 0x1 << 2
override func didMove(to view: SKView) {
physicsWorld.contactDelegate = self
}
func didBegin(_ contact: SKPhysicsContact) {
let collision: UInt32 = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
if collision == marbleCategory | rectCatagory {
rectSprite.removeFromParent()
}
}