Ios Swift/SpriteKit与自定义类冲突

我有一个类为多个spritenod创建变量，如下所示：

class Enemy {

var speed:Float = 0.0
var guy:SKSpriteNode
var currentFrame = 0
var randomFrame = 0
var moving = false
var rotationSpeed:CGFloat = 1.0
var angle = 0.0
var range = 1.2
var yPos = CGFloat()
var rotationDirection:Int = 0
var preLocation:CGFloat = 0
var health:Int = 0

init(speed:Float, guy:SKSpriteNode, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    self.speed = speed
    self.guy = guy
    self.rotationSpeed = rotationSpeed
    self.rotationDirection = rotationDirection
    self.preLocation = preLocation
    self.health = health


}

func addEnemy(#named: String, speed:Float, yPos: CGFloat, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    var enemyNode = SKSpriteNode(imageNamed: named)

    enemyNode.physicsBody = SKPhysicsBody(texture: enemyNode.texture, alphaThreshold: 0, size: enemyNode.size)
    enemyNode.physicsBody!.affectedByGravity = false
    enemyNode.physicsBody!.categoryBitMask = ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.contactTestBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.collisionBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody?.allowsRotation = false

    var enemy = Enemy(speed: speed, guy: enemyNode, rotationSpeed: rotationSpeed, rotationDirection: rotationDirection, preLocation: preLocation, health: health)
    enemys.append(enemy)
    enemy.guy.name = named
    resetEnemy(enemyNode, yPos: yPos)
    enemy.yPos = enemyNode.position.y
    addChild(enemyNode)

}

if let myEnemy = contact.bodyA.node as? Enemy {
     myEnemy.speed = 99
}

然后对敌人使用一个SpriteNode，如下所示：

class Enemy {

var speed:Float = 0.0
var guy:SKSpriteNode
var currentFrame = 0
var randomFrame = 0
var moving = false
var rotationSpeed:CGFloat = 1.0
var angle = 0.0
var range = 1.2
var yPos = CGFloat()
var rotationDirection:Int = 0
var preLocation:CGFloat = 0
var health:Int = 0

init(speed:Float, guy:SKSpriteNode, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    self.speed = speed
    self.guy = guy
    self.rotationSpeed = rotationSpeed
    self.rotationDirection = rotationDirection
    self.preLocation = preLocation
    self.health = health


}

func addEnemy(#named: String, speed:Float, yPos: CGFloat, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    var enemyNode = SKSpriteNode(imageNamed: named)

    enemyNode.physicsBody = SKPhysicsBody(texture: enemyNode.texture, alphaThreshold: 0, size: enemyNode.size)
    enemyNode.physicsBody!.affectedByGravity = false
    enemyNode.physicsBody!.categoryBitMask = ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.contactTestBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.collisionBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody?.allowsRotation = false

    var enemy = Enemy(speed: speed, guy: enemyNode, rotationSpeed: rotationSpeed, rotationDirection: rotationDirection, preLocation: preLocation, health: health)
    enemys.append(enemy)
    enemy.guy.name = named
    resetEnemy(enemyNode, yPos: yPos)
    enemy.yPos = enemyNode.position.y
    addChild(enemyNode)

}

if let myEnemy = contact.bodyA.node as? Enemy {
     myEnemy.speed = 99
}

现在我有一个问题，在didBeginContact函数中，我只得到SpriteNodes，所以我不能得到特定于敌人的变量，比如health

所以我想知道如何将敌方类引用到spritenode，以便在didBeginContact函数中使用它

---

我希望有人能帮助我。谢谢。

我正好遇到了这个问题。您需要将节点强制转换为要查找的对象。在didBeginContact中，可能是这样的：

class Enemy {

var speed:Float = 0.0
var guy:SKSpriteNode
var currentFrame = 0
var randomFrame = 0
var moving = false
var rotationSpeed:CGFloat = 1.0
var angle = 0.0
var range = 1.2
var yPos = CGFloat()
var rotationDirection:Int = 0
var preLocation:CGFloat = 0
var health:Int = 0

init(speed:Float, guy:SKSpriteNode, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    self.speed = speed
    self.guy = guy
    self.rotationSpeed = rotationSpeed
    self.rotationDirection = rotationDirection
    self.preLocation = preLocation
    self.health = health


}

func addEnemy(#named: String, speed:Float, yPos: CGFloat, rotationSpeed:CGFloat, rotationDirection:Int, preLocation:CGFloat, health:Int) {

    var enemyNode = SKSpriteNode(imageNamed: named)

    enemyNode.physicsBody = SKPhysicsBody(texture: enemyNode.texture, alphaThreshold: 0, size: enemyNode.size)
    enemyNode.physicsBody!.affectedByGravity = false
    enemyNode.physicsBody!.categoryBitMask = ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.contactTestBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody!.collisionBitMask = ColliderType.Hero.rawValue | ColliderType.Enemy.rawValue
    enemyNode.physicsBody?.allowsRotation = false

    var enemy = Enemy(speed: speed, guy: enemyNode, rotationSpeed: rotationSpeed, rotationDirection: rotationDirection, preLocation: preLocation, health: health)
    enemys.append(enemy)
    enemy.guy.name = named
    resetEnemy(enemyNode, yPos: yPos)
    enemy.yPos = enemyNode.position.y
    addChild(enemyNode)

}

if let myEnemy = contact.bodyA.node as? Enemy {
     myEnemy.speed = 99
}

---

是否有理由不通过

敌人

类继承

SKSpriteNode

？