Code for post "I built a retro RPG game shop extension for my Magento 2 store"

i-built-a-retro-rpg-game-shop-extension-for-my-magento-2-store-script-4.php

public function getCartItemCount()
{
    if (!$this->isModuleEnabled()) {
        return 0;
    }

    $quote = $this->cart->getQuote();
    return (int)$quote->getItemsQty();
}

public function addItemToCart($productId, $qty = 1)
{
    if (!$this->isModuleEnabled()) {
        return ['success' => false, 'message' => 'GameShop is disabled.', 'cart_count' => 0];
    }

    // Normal add-to-cart logic here
}