Isaac [Scale Code]

local items = {
    bombs = 0,
    keys = 0,
    coins = 0,
    firstset = true,
    changed = false
}
local player = Isaac.GetPlayer(0)

local function addPickups(count)
    player:AddCoins(count)
    player:AddBombs(count)
    player:AddKeys(count)
    items.bombs = count
    items.keys = count
    items.coins = count
end

function MyMod:PlayerUpdate(newplayer)
    player = newplayer
    if player:HasCollectible(Scale) and not items.changed then
        items.changed = true
        local bombs = player:GetNumBombs()
        local coins = player:GetNumCoins()
        local keys = player:GetNumKeys()
        if items.firstset then
            local count = bombs
            if count < coins then
                count = coins
            elseif count < keys then
                count = keys
            end
            player:AddCoins(-99)
            player:AddBombs(-99)
            player:AddKeys(-99)
            player:AddCoins(count)
            player:AddBombs(count)
            player:AddKeys(count)
            items.bombs = count
            items.keys = count
            items.coins = count
            items.firstset = false
        else
            if bombs ~= items.bombs then
                print("player has: " .. bombs)
                print(bombs - items.bombs)
                addPickups(bombs - items.bombs)
                print("player has: " .. player:GetNumBombs())
            elseif coins ~= items.coins then
                --addPickups(coins - items.coins)
            elseif keys ~= items.keys then
                --addPickups(keys - items.keys)
            end
        end
        items.changed = false
    end
end
MyMod:AddCallback(ModCallbacks.MC_POST_PLAYER_UPDATE, MyMod.PlayerUpdate)