public void buySpeed(int cointrequirement) { PlayerInventory playerInventory = playerhp.instance.GetPlayerInventory(); int codeMessage = shop.BuySpeed(cointrequirement); if (codeMessage == 0) { shopText[2].text = dialog[4]; checkbox.SetActive(true); } else if (codeMessage == -1) { shopText[2].text = dialog[2]; checkbox.SetActive(true); } else { playerInventory.coin -= cointrequirement; } }