需要幫助使其讓球只能從遊戲

Question

playing game from anywhere

喜的上半部分被丟棄，所以我希望用戶只能夠從釘砸球的頂部行上方點擊通過釘。現在，你可以簡單地觸摸屏幕上的任何地方，包括目標，球將會去那裏。我曾嘗試使用if語句和CGPoint來讓它只能從pegs上方刪除，但我太初學者瞭解它。謝謝。

這裏是我的代碼，用斯威夫特2和Xcode的7：我的身影，它會何去何從......

for touch in touches { 

     if self.nunus.count >= numberOfNunus { 
      self.removeChildrenInArray(self.nunus) 
      self.nunus = [] 
      self.score = 0 
      updateLabels() 
     } else { 

      let nunu = SKSpriteNode(imageNamed:"nunu") 

      nunu.xScale = 0.13 
      nunu.yScale = 0.13 
      nunu.position = touch.locationInNode(self) 

      nunu.physicsBody = SKPhysicsBody(circleOfRadius: nunu.size.height/2) 
      nunu.physicsBody?.categoryBitMask = self.nunuCategory 
      nunu.physicsBody?.collisionBitMask = self.pegCategory | self.borderCategory | self.postCategory | self.nunuCategory 
      nunu.physicsBody?.contactTestBitMask = smallGoalCategory | self.mediumGoalCategory | self.bigGoalCategory 



      self.addChild(nunu) 

      self.nunus.append(nunu) 
      updateLabels() 
     } 
    } 
} 

Answer 1

此代碼創建和如果只有你比現場的midle觸及高路節點。如果whant改變高度改變這一行：

if location.y > worl.frame.size.height/2 

例如：

if location.y > worl.frame.size.height * 0.8 

意味着你的觸摸位置必須高於80％的場景高度

touchesBegan：

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) { 

    for touch in touches { 
     let location = touch.locationInNode(self) 
     //let touchedNode = nodeAtPoint(location) 

     if location.y > worl.frame.size.height/2 { 

      createNode() 
     } 
    } 
} 

func createAndDropNode() { 

    //code here 
} 

world - SKNo與您的SKScene尺寸完全相同

Answer 2

找出來了。 iPhone屏幕上的關鍵點在500或以上。所以如果用戶觸及500點以下，丟球的代碼將不會運行。我加入這行代碼：如果touch.locationInNode（個體）.Y> 500

FUNC的touchesBegan（觸摸：設置，withEvent事件：？的UIEvent）{ /*調用當觸摸開始*/

for touch in touches { 

     if touch.locationInNode(self).y > 500 { 


     if self.nunus.count >= numberOfNunus { 
      self.removeChildrenInArray(self.nunus) 
      self.nunus = [] 
      self.score = 0 
      updateLabels() 
     } else { 

      let nunu = SKSpriteNode(imageNamed:"nunu") 

      nunu.xScale = 0.13 
      nunu.yScale = 0.13 
      nunu.position = touch.locationInNode(self) 

      nunu.physicsBody = SKPhysicsBody(circleOfRadius: nunu.size.height/2) 
      nunu.physicsBody?.categoryBitMask = self.nunuCategory 
      nunu.physicsBody?.collisionBitMask = self.pegCategory | self.borderCategory | self.postCategory | self.nunuCategory 
      nunu.physicsBody?.contactTestBitMask = smallGoalCategory | self.mediumGoalCategory | self.bigGoalCategory 




      self.addChild(nunu) 

      self.nunus.append(nunu) 
      updateLabels() 
     } 
     } 
    } 
}