我正在制作游戏,我正在多次调用一个函数,为场景添加一个节点。
我需要知道节点是否接触到了播放器。问题是只有当节点的第一个实例接触到播放器节点时才会调用didBegin(contact)
方法,但是当被调用的其他实例触摸它时,它不会被调用。
以下是我正在使用的代码:
class GameScene: SKScene, SKPhysicsContactDelegate {
let circlePlayer = SKSpriteNode(imageNamed: "Player")
self.physicsWorld.contactDelegate = self
circlePlayer.position = CGPoint(x: self.frame.midX, y:
self.frame.minY + circlePlayer.size.height * 3)
circlePlayer.zPosition = 2
//Physics for player
circlePlayer.physicsBody = SKPhysicsBody(circleOfRadius:
circlePlayer.size.height / 2)
circlePlayer.physicsBody?.categoryBitMask = PhysicsNumbering.player
circlePlayer.physicsBody?.contactTestBitMask =
PhysicsNumbering.star
//Star node is called multiple times
let star = SKAction.sequence([SKAction.run(starEmitter), SKAction.wait(forDuration: 3)])
}
这是Star Node功能:
func starEmitter(){
let star = SKSpriteNode(imageNamed: "15")
//Physics World
star.physicsBody = SKPhysicsBody(circleOfRadius: star.size.height / 2)
star.physicsBody?.categoryBitMask = PhysicsNumbering.star
star.physicsBody?.contactTestBitMask = PhysicsNumbering.player
star.physicsBody?.affectedByGravity = false
star.physicsBody?.isDynamic = true
star.physicsBody?.collisionBitMask = 0
star.zPosition = 0
let tooMuch = self.frame.maxX
let point1 = UInt32(tooMuch)
star.position = CGPoint(x: CGFloat(arc4random_uniform(point1 * 2)) - CGFloat(point1) ,y: self.frame.maxY )
let move = SKAction.moveTo(y: self.frame.minY + 100, duration: 1.4)
let removeNode = SKAction.removeFromParent()
let sequence = SKAction.sequence([move,removeNode])
star.run(sequence)
addChild(star)
}
这是didBeginContact
方法:
func didBegin(_ contact: SKPhysicsContact) {
var BodyOne = SKPhysicsBody()
var BodyTwo = SKPhysicsBody()
if contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask{
BodyOne = contact.bodyA
BodyTwo = contact.bodyB
}
else{
BodyOne = contact.bodyB
BodyTwo = contact.bodyA
}
//------------------------------------
if BodyTwo.categoryBitMask == PhysicsNumbering.player && BodyOne.categoryBitMask == PhysicsNumbering.star{
let scaleUp = SKAction.scale(by: 1.3, duration: 0.5)
let fadeOut = SKAction.fadeOut(withDuration: 1)
let removeNode = SKAction.removeFromParent()
BodyOne.node?.removeAllActions()
let group = SKAction.group([scaleUp,fadeOut])
BodyOne.node?.run(SKAction.sequence([group,removeNode]))
print("star touched")
}
}
我试图在网上搜索,但找不到可能发生这种情况的原因。有人能告诉我我做错了什么吗?
提前谢谢你!