//Funçao para a compra de mais velocidade no tiro
    public void buyVelocity(UpgradeScript upScript)
    {
        int price = upScript.GetPrice();

        if (checkPrice(price) && upScript.canBuy())
        {
            audioSource.PlayOneShot(upgradeBuySound, 0.3f);
            player.bulletVelocity += upScript.GetUpgradeAmount();
            managerScript.score   -= price;
            upScript.BuyUpgrade();
        }
        else
        {
            audioSource.PlayOneShot(errorSound, 0.1f);
        }
    }
    //Funçao para a compra do upgrade de tiro automatico da arma
    public void buyAutomatic(UpgradeScript upScript)
    {
        int price = upScript.GetPrice();

        if (checkPrice(price) && upScript.canBuy())
        {
            audioSource.PlayOneShot(upgradeBuySound, 0.3f);
            player.automatic     = true;
            managerScript.score -= price;
            upScript.BuyUpgrade();
        }
        else
        {
            audioSource.PlayOneShot(errorSound, 0.1f);
        }
    }