讓玩家雙跳Sprite Kit Swift

Question

我已經爲我的玩家實現了單跳。但是如果用戶點擊兩次，我希望玩家能夠加倍跳躍。

我該如何讓這個功能在下面檢查跳躍是否仍然持續，以便他們可以在需要時再次點擊跳躍？

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

    var isJumping = false 
    var isDoubleJumping = false 

    if mario.action(forKey: "jump") == nil && isJumping { 

     let marioTextureJump = SKTexture(imageNamed: "mariojump.png") 

     let animation = SKAction.animate(with: [marioTextureJump], timePerFrame: 0.6) 

     mario.run(animation) 

     mario.run(jumpAction, withKey: "jump") 

     if isJumping { 

      isDoubleJumping = true 
      isJumping = false 
     } 

     else { 

      isJumping = true 
      isDoubleJumping = false 
     } 
    } 
} 

Answer 1

實現，這可能是隻加2個標誌到現場

isPlayerJumping = false 
isPlayerDoubleJumping = false 

，然後檢查並設定這些變量在你觸摸FUNC

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent { 

    //if the player is already double jumping don't let them jump again until finished 
    guard !isDoubleJumping else { return } 

    let animation = SKAction.animate(with: [playerTextureJump], timePerFrame: 0.6) 

    player.run(animation) 

    if isJumping { 
     isDoubleJumping = true 
     isJumping = false 

     player.run(jumpAction, withKey: "jump") { 
      self.isDoubleJumping = false 
     } 
    } 
    else { 
     isJumping = true 

     player.run(jumpAction, withKey: "jump") { 
      self.isJumping = false 
     } 
    } 
} 

最簡單的方法

編輯

如果你不想使用守護你可以把一個if statement到位

if isPlayerDoubleJumping { 
    return 
} 

在你jumpAction結束時，你必須運行的代碼塊重置變量

SKAction.run { 
    isJumping = false 
    isDoubleJumping = false 
} 

你甚至可以改變你的觸摸內聯變量開始像這樣...

player.run(jumpAction, withKey: "jump") { 
    self.isPlayerJumping = false 
    self.isPlayerDoubleJumping = false 
}