deck: Implement unique identification of cards by assigning an id to …

…each card

first created an id as card-type-color-value
and to uniquely identify the same type color value card, I created an card_num array that will to uniquely identify these card
finnaly created an unique id card-type-color-value-num_card[id]

backend/uno-game-engine/deck.js

@@ -60,7 +60,16 @@ export default function getShuffledCardDeck() {
  */
 function makeCard(type, color, value) {
     //todo: Implement unique identification of cards by assigning an id to each card
-    return { type, color, value };
+    let card_num = [];
+    let id = `card-${type}-${color}-${value}`
+
+    if(!card_num[id]) card_num[id] = 0
+    card_num[id]++  // as there are more then one card of same type, color and value
+    // this will help to identify the card uniquely 
+    // by counting the number of cards of same type, color and value
+
+    let uid = `${id}-${card_num[id]}`
+    return { type, color, value, id: uid };
 }
 
 /**