ScoreDisplay.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class ScoreDisplay : MonoBehaviour {

    private Text[] rollTexts = new Text[21];
    private Text [] frameTexts = new Text[10];

	// Use this for initialization
	void Start () {
        RollText[] rollTextObjects = GetComponentsInChildren<RollText>();
        FrameText[] frameTextObjects = GetComponentsInChildren<FrameText>();
        int i = 0;
        foreach (RollText obj in rollTextObjects)
        {
            rollTexts[i] = obj.GetComponent<Text>();
            rollTexts[i].text = "";
            i++;
        }
        int j = 0;
        foreach(FrameText obj in frameTextObjects)
        {
            frameTexts[j] = obj.GetComponent<Text>();
            frameTexts[j].text = "";
            j++;
        }
	}
	
	public void FillRolls(List<int> rolls)
    {
        string rollsString = FormatRolls(rolls);
        for(int i = 0; i < rollsString.Length; i++)
        {
            rollTexts[i].text = rollsString[i].ToString();
        }
    }

    public void FillFrames(List<int> frames)
    {
        for (int i=0; i <frames.Count; i++)
        {
            frameTexts[i].text = frames[i].ToString();
        }
    }

    public static string FormatRolls(List<int> rolls)
    {
        string output = "";
        for (int i = 0; i < rolls.Count; i++)
        {

            
            if((output.Length % 2 != 0 || output.Length == 20) && rolls[i] + rolls[i-1] == 10)
            {
                output += "/";
            }
            else if(rolls[i] == 0)
            {
                output += "-";
            }
            else if (rolls[i] == 10)
            {
                output += "X";
                if (output.Length < 18)
                {
                    output += " ";

                }
            }
            else
            {
                output += rolls[i].ToString();
            }
        }
        
        return output;

    }

    public void ResetScores()
    {
        foreach(Text text in rollTexts)
        {
            text.text = "";
        }
        foreach (Text text in frameTexts)
        {
            text.text = "";
        }
    }
}