Unity 3D Game Development by Example

Time for action - compare the IDs

To compare the IDs, we need to make some changes to the FlipCardFaceUp function.

1. Note that we're folding two existing lines of code inside a new conditional statement:

   function FlipCardFaceUp(card:Object)
   {
   card.isFaceUp = true;
   if(aCardsFlipped.IndexOf(card) < 0)
   {
   aCardsFlipped.Add(card);
   if(aCardsFlipped.Count == 2)
   {
   playerCanClick = false;
   yield WaitForSeconds(1);
   if(aCardsFlipped[0].id == aCardsFlipped[1].id)
   {
   // Match!
   aCardsFlipped[0].isMatched = true;
   aCardsFlipped[1].isMatched = true;
   }
   else
   {
   aCardsFlipped[0].isFaceUp = false;
   aCardsFlipped[1].isFaceUp = false;
   }
   aCardsFlipped = new ArrayList();
   playerCanClick = true;
   }
   }
   }
   

   Here, we check to see if the two flipped-over cards have the same ID value. ...