两个SpriteNodes之间的联系问题
两个SpriteNodes之间的联系问题
提问于 2015-10-30 02:45:55
我的func联系人有一个问题，因为第二个联系人不工作(与Bonus和Vaisseau的联系人)，但其他两个联系人不工作。
所以这是我的代码：
函数：
func didBeginContact(contact: SKPhysicsContact) {
let PremierBody : SKPhysicsBody = contact.bodyA
let SecondBody : SKPhysicsBody = contact.bodyB
if ((PremierBody.categoryBitMask == PhysicsCategories.Meteorites) && (SecondBody.categoryBitMask == PhysicsCategories.Meteorites)) {
contactEntreMeteorites(PremierBody.node as! SKSpriteNode, Meteorites2: SecondBody.node as! SKSpriteNode)
}
else if ((PremierBody.categoryBitMask == PhysicsCategories.Bonus) && (SecondBody.categoryBitMask == PhysicsCategories.Vaisseau) ||
(PremierBody.categoryBitMask == PhysicsCategories.Vaisseau) && (SecondBody.categoryBitMask == PhysicsCategories.Bonus)){
gameOver(PremierBody.node as! SKSpriteNode, Vaisseau: SecondBody.node as! SKSpriteNode)
print("CONTACT")
}
else if ((PremierBody.categoryBitMask == PhysicsCategories.Meteorites) && (SecondBody.categoryBitMask == PhysicsCategories.Vaisseau) ||
(PremierBody.categoryBitMask == PhysicsCategories.Vaisseau) && (SecondBody.categoryBitMask == PhysicsCategories.Meteorites)){
gameOver(PremierBody.node as! SKSpriteNode, Vaisseau: SecondBody.node as! SKSpriteNode)
print("Couco")
}
} 这是我的物理分类：
struct PhysicsCategories {
static let Meteorites : UInt32 = 1
static let Bonus : UInt32 = 2
static let Vaisseau : UInt32 = 5
}在我的func DidMoveToView中：
Vaisseau = SKSpriteNode(texture: Vaisseau1)
Vaisseau.position = CGPointMake(self.frame.size.width / 2, self.frame.size.height / 2)
Vaisseau.physicsBody = SKPhysicsBody(rectangleOfSize: Vaisseau.size)
Vaisseau.physicsBody?.affectedByGravity = false
Vaisseau.physicsBody?.categoryBitMask = PhysicsCategories.Vaisseau
Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Bonus
Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Meteorites
Vaisseau.physicsBody?.dynamic = false
Vaisseau.setScale(0.08)
self.addChild(Vaisseau)我在这个函数中创建了我的SpriteNode奖励：
func ApparitionBonus() {
let BonusSprite = SKSpriteNode(imageNamed: "Bonus.png")
var BonusApparitionX = UInt32(self.frame.size.width)
var BonusApparitionY = UInt32(self.frame.size.height)
BonusApparitionX = arc4random() % BonusApparitionX
BonusApparitionY = arc4random() % BonusApparitionY
BonusSprite.position = CGPointMake(CGFloat(BonusApparitionX),CGFloat(BonusApparitionY))
BonusSprite.setScale(0.8)
BonusSprite.physicsBody = SKPhysicsBody(circleOfRadius: 20)
BonusSprite.physicsBody?.affectedByGravity = false
BonusSprite.physicsBody?.categoryBitMask = PhysicsCategories.Bonus
BonusSprite.physicsBody?.contactTestBitMask = PhysicsCategories.Vaisseau
BonusSprite.physicsBody?.dynamic = false
self.addChild(BonusSprite)
let RotationBonus = SKAction.rotateByAngle(CGFloat(M_PI), duration: 3)
let wait = SKAction.waitForDuration(3)
let actionFini = SKAction.removeFromParent()
BonusSprite.runAction(SKAction.sequence([RotationBonus, wait, actionFini]))
BonusSprite.runAction(SKAction.repeatActionForever(RotationBonus))
}回答 1
Stack Overflow用户
发布于 2015-10-30 09:20:38
在您的didMoveToView中，当您调用：
Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Bonus
Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Meteorites您将contactTestBitMask设置为一个类别，然后再设置另一个类别。您需要按位或将它们放在一起。类似于：
Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Bonus | PhysicsCategories.Meteorites这将结合两个位掩码，这将允许它同时联系Bonus和Meteorites。
如果不希望精灵发生碰撞，请将collisionBitMask设置为0x0 (或以您希望的方式表示0)：
Vaisseau.physicsBody?.collisionBitMask = 0x0页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/33422280
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