Unity 3D Game Development by Example

Time for action - build the card-flipping function

The game will let the player flip over two cards. Then, it will pause for a brief moment and flip the cards back over. We'll worry about detecting matches for our grand finale in just a moment.

1. Add the following code to your FlipCardFaceUp function:

   function FlipCardFaceUp(card:Card)
   {
   card.isFaceUp = true;
   aCardsFlipped.Add(card);
   if(aCardsFlipped.Count == 2)
   {
   playerCanClick = false;
   yield WaitForSeconds(1);
   aCardsFlipped[0].isFaceUp = false;
   aCardsFlipped[1].isFaceUp = false;
   aCardsFlipped = new ArrayList();
   playerCanClick = true;
   }
   }
   

2. Then, make a small change to one line in the BuildGrid function:

   if(GUILayout.Button(Resources.Load(img), GUILayout.Width(cardW))) { if(playerCanClick) { FlipCardFaceUp(card); ...