How do you debug arrays of objects?

Question

I'm trying to debug this script to see if it is actually creating an array of cards with real values. I gave the deck a debug function that prints the amount of cards and, supposedly, the card values. With this setup, newDeck.debug() will return

52--singleCard,singleCard,singleCard.....

*Updated code will return error

(138,74): BCE0019: 'cardToString' is not a member of 'Object'.

 #pragma strict
 
 //    Based off of a tutorial by Mike Hall on http://www.brainjar.com/
 
 function Start () {
     var newDeck = new Deck();
 //    newDeck.stack(1);
     newDeck.debug();
 }
 
 function Update () {
     
 }
 
 class singleCard {
 
     var rank : int;
     var suite : String;
     
     var cardRank;
     var cardSuit;
     function singleCard (cardRank, cardSuit) {
         this.rank = cardRank;
         this.suite = cardSuit;
     }
     
     function cardToString () {
 
         switch (this.rank) {
             case 0 :
                 cardRank = "Ace";
                 break;
             case 1 :
                 cardRank = "Two";
                 break;
             case 2 :
                 cardRank = "Three";
                 break;
             case 3 :
                 cardRank = "Four";
                 break;
             case 4 :
                 cardRank = "Five";
                 break;
             case 5 :
                 cardRank = "Six";
                 break;
             case 6 :
                 cardRank = "Seven";
                 break;
             case 7 :
                 cardRank = "Eight";
                 break;
             case 8 :
                 cardRank = "Nine";
                 break;
             case 9 :
                 cardRank = "Ten";
                 break;
             case 10 :
                 cardRank = "Jack";
                 break;
             case 11 :
                 cardRank = "Queen";
                 break;
             case 12 :
                 cardRank = "King";
                 break;
             default :
                 cardRank = null;
                 break;
         }
     
         switch (this.suite) {
             case "C" :
                 cardSuit = "Clubs";
                 break;
             case "D" :
                 cardSuit = "Diamonds";
                 break;
             case "H" :
                 cardSuit = "Hearts";
                 break;
             case "S" :
                 cardSuit = "Spades";
                 break;
             default :
                 cardSuit = null;
                 break;
         }
         
         if (cardRank == null || cardSuit == null) {
             return "Null Card";
         } else {
             return cardRank + " of " + cardSuit;
         }
     }
 }
 
 class Deck {
     
     var cardDeck = new Array();
     var n;
     
     function stack (n : int) {
         var ranks = new Array("A", "2", "3", "4", "5", "6", "7", "8", "9",
                         "10", "J", "Q", "K");
         var suits = new Array("C", "D", "H", "S");
         var i : int;
         var j : int;
         var k : int;
         var m : int;
 
         m = ranks.length * suits.length;
 
         // Set array of cards.
 
         this.cardDeck = new Array(n * m);
 
         // Build Array
 
         for (i = 0; i < n; i++){
             for (j = 0; j < suits.length; j++){
                 for (k = 0; k < ranks.length; k++){
                     this.cardDeck[i * m + j * ranks.length + k] = 
                     new singleCard(k, suits[j]);
                 }
             }
         }
     }
     
     function debug () {
     
         var stringDebug : String = "Deck--";
     
         var i : int;
         for (i = 0; i < cardDeck.length; i++){
             stringDebug = stringDebug + " || " + cardDeck[i].cardToString();
         }
         Debug.Log(stringDebug);
     }
 }

Answer 1

Best Answer

Answer by robertbu · May 07, 2014 at 03:24 AM

Implement a ToString() function for each card that outputs a single card. Next implement a ToString() function for the deck. It calls the ToString() function for each card in the deck, and builds a string with each entry separated by a "\n". Then when you want to dump the deck, just do:

  Debug.Log(cardDeck.ToString());

Only the first entry or two will appear in the console, but if you click on the dropdown in the upper-right corner of the Console window, you can select "Open Editor Log" and see the full dump. Or you could use the debugger:

http://unitygems.com/debugging-game-monodevelop/

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CoreyNW · May 08, 2014 at 12:38 PM 0

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I'm trying to have it go through the deck and convert each card to a string and add it to another string variable, but it doesn't want to use cardToString() on the singleCard at index i. I get:

(138,74): BCE0019: 'cardToString' is not a member of 'Object'.

robertbu · May 08, 2014 at 01:31 PM 0

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Don't use the Array class. Use the built-in array ins$$anonymous$$d. The Array class is untyped or slow. The error comes from it being untyped. You can cast the Array entry to solve the problem as well. Something like:

 var st = (cardDeck[i] as singleCard).cardToString();

How do you debug arrays of objects?

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