CheckCardsInAZoneForExplosiveCombinations

local explosiveCombinations = {
    --[[
        make a table of the cards that should explode with each other
        combinations only need to appear once for this to work but you can
        duplicate them if that makes it easier to manage.
    --]]

    {"Fire", "Water"},
    {"Fire", "Ice"},
    {"Fire", "Another Card Name"},
}

function isExplosive(name1, name2)
    --[[
        Simple function to loop through the table of explosiveCombinations and check for
        entries that match the card names provided
    --]]
    for _,card in ipairs(explosiveCombinations) do
        if (card[1]==name1 and card[2]==name2) or
            (card[1]==name2 and card[2]==name1) then
            return true
        end
    end

    return false
end

function compareCardsInZone(zoneGUID)
    --[[
        Loops through all the objects in a zone, finds the cards, and reads their names to look for
        any of the explosive compbinations declared above
    --]]

    --get a reference to the zone
    local zone = getObjectFromGUID(zoneGUID)

    --create a blank table to store found Card object references
    local cards = {}

    --loop through all the Objects in the zone and add any Cards found to the blank cards table we just created
    for _,obj in ipairs(zone.getObjects()) do
        if obj.tag == "Card" then
            table.insert(cards, obj)
        end
    end

    --abort if we don't find at least 2 Cards in the zone
    if #cards < 2 then return false end

    --loop through all the found Cards, checking if they're explosive with any of the other found Cards
    for i=1,#cards-1 do

        --pop the first Card from the table of found cards
        local card1 = table.remove(cards, 1)
        local card1Name = card1.getName()

        --loop through the other found Cards and check if they form an explosive combination
        for _,card2 in ipairs(cards) do
            local card2Name = card2.getName()

            if isExplosive(card1Name, card2Name) then
                print("The cards "..card1Name.." and "..card2Name.." are explosive!")
            end
        end
    end
end