我是Xcode的新手，并且正在为我的课程制作2D游戏。我已经有一段时间的按钮问题了。我刚刚有一个解决方案，说明为什么我的跳转按钮不起作用，但是我也有一个攻击按钮。

我已经为按钮设置了代码，使其可以在屏幕上显示，并在按下按钮时进行图像更改。但是，我不知道要插入什么代码才能将播放器图像更改为跳转动画。我也不知道如何为它和敌人设置碰撞，以使攻击动画能够命中。

所以我的问题是，如何让按钮启动跳跃动画，以及如何设置碰撞以击中敌人？

到目前为止，这是我的代码：

override func sceneDidLoad() {
    //Setup start button
    jumpButton = SKSpriteNode(texture: jumpButtonTexture)
    jumpButton.position = CGPoint(x: 1850, y: 130)
    jumpButton.size = CGSize(width: 200, height: 200)
    jumpButton.zPosition = 20

    addChild(jumpButton)

    //Setup start button
    attackButton = SKSpriteNode(texture: attackButtonTexture)
    attackButton.position = CGPoint(x: 1550, y: 130)
    attackButton.size = CGSize(width: 200, height: 200)
    attackButton.zPosition = 20

    addChild(attackButton)
}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        if selectedButton != nil {
            handleJumpButtonHover(isHovering: false)
            handleAttackButtonHover(isHovering: false)
        }

        if jumpButton.contains(touch.location(in: self)) {
            selectedButton = jumpButton
            handleJumpButtonHover(isHovering: true)
        } else if attackButton.contains(touch.location(in: self)) {
            selectedButton = attackButton
            handleAttackButtonHover(isHovering: true)
        }
    }
}

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        if selectedButton == jumpButton {
            handleJumpButtonHover(isHovering: false)

            if (jumpButton.contains(touch.location(in: self))) {
                handleJumpButtonClick()
            }
        } else if selectedButton == attackButton {
            handleAttackButtonHover(isHovering: false)

            if (attackButton.contains(touch.location(in: self))) {
                handleAttackButtonClick()
            }
        }
    }
    selectedButton = nil
    }

    func handleJumpButtonHover(isHovering : Bool) {
    if isHovering {
        jumpButton.texture = jumpButtonPressedTexture
    } else {
        jumpButton.texture = jumpButtonTexture
    }
}

func handleAttackButtonHover(isHovering : Bool) {
    if isHovering {
        attackButton.texture = attackButtonPressedTexture
    } else {
        attackButton.texture = attackButtonTexture
    }
}

func handleJumpButtonClick() {
    self.playerNode.physicsBody?.velocity = CGVector(dx: 0, dy: 0)
    self.playerNode.physicsBody?.applyImpulse(CGVector(dx: 0, dy: 20))
}

func handleAttackButtonClick() {
}