【发布时间】：2017-09-01 23:25:00
【问题描述】：
class GameScene: SKScene, SKPhysicsContactDelegate {
let balls = [
SKSpriteNode(imageNamed: "blueball.png"),
SKSpriteNode(imageNamed: "greenball.png"),
SKSpriteNode(imageNamed: "realredball.png")
]
let redRectangle = SKSpriteNode(imageNamed: "redrectangle.png")
let blueRectangle = SKSpriteNode(imageNamed: "bluerectangle.png")
let greenRectangle = SKSpriteNode(imageNamed: "greenrectangle.png")
override func didMove(to view: SKView) {
spawnBalls()
rectangles()
physicsWorld.contactDelegate = self
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for ball in balls{
ball.physicsBody = SKPhysicsBody()
ball.physicsBody?.affectedByGravity = true
}
}
func spawnBalls() {
let ball = balls[Int(arc4random_uniform(UInt32(balls.count)))]
ball.physicsBody = SKPhysicsBody()
ball.physicsBody?.affectedByGravity = false
ball.position = CGPoint(x: 0, y: 250)
ball.size = CGSize(width: 70, height: 70)
ball.physicsBody?.categoryBitMask = 0
ball.physicsBody?.collisionBitMask = 1
self.addChild(ball)
}
func rectangles() {
redRectangle.position = CGPoint(x: -316.5, y: -657)
redRectangle.size = CGSize(width: 400, height: 20)
redRectangle.physicsBody = SKPhysicsBody()
redRectangle.physicsBody?.categoryBitMask = 1
redRectangle.physicsBody?.collisionBitMask = 0
blueRectangle.size = CGSize(width: 400, height: 20)
blueRectangle.position = CGPoint(x: -100, y: -657)
blueRectangle.physicsBody = SKPhysicsBody()
greenRectangle.position = CGPoint(x: 0, y: -657)
greenRectangle.size = CGSize(width: 400, height: 20)
greenRectangle.physicsBody = SKPhysicsBody()
self.addChild(redRectangle)
self.addChild(blueRectangle)
self.addChild(greenRectangle)
}
}
我希望球落下并与矩形节点接触，尽管看起来球只是穿过它们。我使用了碰撞和类别位掩码。我想知道是否有人可以帮助解决这个问题，谢谢。
【问题讨论】：
-
球应该只与红色矩形碰撞，是吗？
-
如果其他人有同样的问题，你能发布解决方案吗？您可以发布自己问题的答案。
标签： ios swift sprite-kit