do you know how to show a message to player when he clicks on a button to unlock a world with game currency, like "Hey, you need 50 coins to unlock" like Wall Switch game ?
That too but, how do I do to, when the user/player buy or unlock with the button, when the purchase is completed, the button disappears and cant be touched.
In BuildBox the character purchase is done through either Multiple Unlock or Single Unlock UI elements. In the Multiple Unlock you can add an image that appears on top of the character when the character is locked. If you click on a locked one and have enough funds in game currency or if you are purchasing the character via IAP, then character will be unlocked and that unlock image will no longer on top of it...
I mean, imagine, theres a button thats says 1$ or 20Coins or whatever, then, I buy it and then it disappears allowing another button that is behind that button can be clicked. Thats it.