Add shield destroy check logic

public/board.js

@@ -743,10 +743,38 @@ class Board{
 		// Sets the listPosition to the next in line for new boardElement
 		// Changes the listPosition of each item in previous boardElement
 		// All for same player, although below playerFrom/playerTo can be set to switch between players
-		// TODO: Removes any cardStatus 
+		
+		// TODO:Check if shield can be destroyed (instantly, i.e. poisontouch, or some mechanic/spell akin)
 
+		// Check the shield is not tapped, if not can't be destroyed
+		if(!this.isTapped(itemKey)){
+			alert('Shield not tapped, cannot be destroyed');
+			return false;
+		}
+		// Check if all other shields are tapped before destroying the shield
+		// TODO: Normalise the loop!!!
+		// Think this can be done by looping what's needed, then returning itemKeys in array for each
+		// item that hits criteria, then looping that new array and applying logic?
+
+		// Loop all items, get the item with boardElement elementFrom and player playerFrom
+		for(let itemKey = 0; itemKey < item.length; itemKey++){
+			// Get the item from the element
+			if(itemKey in boardElement && boardElement[itemKey] == 'shield'){
+				// Check each shield on the board of the owner of shield being attacked
+				if(itemKey in player && player[itemKey] == player[itemKey]){
+					// If ANY of their shields are untapped, you can't destroy target
+					if(cardStatus[itemKey] != 'tapped'){
+						alert('There is an untapped shield, cannot destroy target');
+						return false;	
+					}
+				}
+			}
+		}
+
+		// Shield is now destroyed, move it from shield to owners hand (for the catchup mechanic)
 		//addFromBoardElement(playerFrom, fromPosition, elementFrom, elementTo, toPosition=null, playerTo=null)
 		this.addFromBoardElement(player[itemKey], listPosition[itemKey], boardElement[itemKey], 'hand', null, null);
+		return true;
 	}
 
 	sendToGrave(itemKey){
@@ -771,6 +799,10 @@ class Board{
 		// TODO: Remove status of card, and do/don't do effect depending on locationTo/locationFrom?
 		cardStatus[itemKey] = null;
 	}
+	isTapped(itemKey){
+		if(cardStatus[itemKey] == 'tapped'){ return true; }
+		return false;
+	}
 }
 
 // TODO: TEMP!! Replace soon