         self.scene?.paused = false
         backgroundMusicPlayer.play()
     }
-    
+
 }

        pylonLoseContact.physicsBody?.dynamic = false
        pylonLoseContact.physicsBody?.categoryBitMask = UInt32(self.contactCategory)
        vertical.addChild(pylonLoseContact)
        
        
        
    }
    
    
    
    
    
    
    
    // Spawn coin [Tuan]
    func spawnCoin() {

        vertical.addChild(pylon)
        
        let pylonScoreContact = SKNode()
        pylonScoreContact.position = CGPointMake(CGRectGetMaxX(self.frame) + CGFloat(randX), CGRectGetMidY(self.frame))
        pylonScoreContact.zPosition = 105
        pylonScoreContact.physicsBody = SKPhysicsBody(rectangleOfSize: CGSize(width: 2, height: self.frame.size.height))
        pylonScoreContact.physicsBody?.dynamic = false
        pylonScoreContact.physicsBody?.categoryBitMask = UInt32(self.scoreCategory)
        pylonScoreContact.physicsBody?.node?.name = "pylonScoreContact"
        vertical.addChild(pylonScoreContact)
        
        let pylonLoseContact = SKSpriteNode()
