在Swift中按下两个按钮时，如何显示第三个按钮？

Question

I have these two buttons and when I press one button and I press another button I want a third button to appear. The code I have currently will show the third button when i press on one button. What I need is to show the third button when both buttons are pressed. How would I do that?

//EDIT CODE

if node.name == "firstButton" {

   if firstButtonClicked  {

   thirdButton.hidden = false
   firstButtonClicked = true

   }

}

if node.name == "secondButton" {
   if secondButtonClicked {

   thirdButton.hidden = false 
   secondButtonClicked = true            
}

Answer 1

var firstClicked = fasle
var secondClicked = false

if node.name == "firstButton" {
   firstClicked = true
   if secondClicked {
       thirdButton.hidden = false
   }
}

if node.name == "secondButton" {
   secondClicked = true 
   if firstClicked {
       thirdButton.hidden = false
   }            
}