碰撞当前有效,我可以玩一段时间,但是在销毁了大约50艘敌方船只之后,我得到了错误exc_breakpoint(code = 1,subcode = 0x1003f42cc)
我在这条代码
上将其获取projectileDidCollideWithEnemy(firstBody.node as SKSpriteNode, enemy: secondBody.node as SKSpriteNode)
这是我认为正在影响的代码的位,并且断点会导致。
func didBeginContact(contact: SKPhysicsContact) {
var firstBody: SKPhysicsBody
var secondBody: SKPhysicsBody
if contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask {
firstBody = contact.bodyA
secondBody = contact.bodyB
}
else {
firstBody = contact.bodyB
secondBody = contact.bodyA
}
if ((firstBody.categoryBitMask & PhysicsCategory.Enemy != 0) &&
(secondBody.categoryBitMask & PhysicsCategory.Projectile != 0)) {
projectileDidCollideWithEnemy(firstBody.node as SKSpriteNode, enemy: secondBody.node as SKSpriteNode)
}
这是被称为
的功能func projectileDidCollideWithEnemy(projectile:SKSpriteNode, enemy:SKSpriteNode) {
projectile.removeFromParent()
enemy.removeFromParent()
score++
scorelabel.text = String(score)
}
您可能需要尝试检查父母是否在删除弹丸和敌人的弹丸和敌人之前。