I'm trying to create a falling word typing game like z-type. I have used the code provided here "https://github.com/Brackeys/Falling-Words-Typing-Game". The code used here is only for keyboards. But I want to implement this on mobiles as well. So I have created a mobile keypad using a canvas and buttons for alphabets but I'm unable to link it to words shown on the screen. Can someone please help me with this?

I'm trying to create a falling word typing game like z-type.

I have used the code provided here — but it's is only for keyboards:

public class WordInput : MonoBehaviour {

    public WordManager wordManager;
    
    void Update () {

        foreach (char letter in Input.inputString)
        {
            wordManager.TypeLetter(letter);   
        }    
    }
}

I want to implement this on mobiles as well. So I have created a mobile keypad using a canvas and buttons for alphabets but I'm unable to link it to words shown on the screen.