物件導向C# - 猜猜看可得分或失分

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
public class NewBehaviourScript : MonoBehaviour
{
    Text mytxt;
    Text mytxt1;
    Text mytxt2;
    Text mytxt3;
    Text mytxt4;
    Text mytxt5;
    int mymoney1 = 100;
    int mymoney2 = 100;
    int mymoney3 = 100;
    // Use this for initialization
    void Start()
    {

        mytxt = GameObject.Find("Canvas/Panel/Text").GetComponent<Text>();
        mytxt1 = GameObject.Find("Canvas/Panel/Text1").GetComponent<Text>();
        mytxt2 = GameObject.Find("Canvas/Panel/Text2").GetComponent<Text>();
        mytxt3 = GameObject.Find("Canvas/Panel/Text3").GetComponent<Text>();
        mytxt4 = GameObject.Find("Canvas/Panel/Text4").GetComponent<Text>();
        mytxt5 = GameObject.Find("Canvas/Panel/Text5").GetComponent<Text>();
        mytxt2.text = mymoney1.ToString();
        mytxt3.text = mymoney2.ToString();
        mytxt5.text = mymoney3.ToString();

    }

    // Update is called once per frame
    void Update()
    {

    }

    public void myfun()
    {
        int num = 0, num1 = 0, num2 = 0;


        num = Random.Range(0, 2);
        num1 = Random.Range(0, 2);

        if (num == 0)
        {
            num1 = 1;
            num2 = 0;
            mymoney1 = mymoney1 + 0;
            mymoney2 = mymoney2 + 2;
            mymoney3 = mymoney3 + 0;

        }
        else if (num1 == 0)
        {
            num = 0;
            num2 = 1;
            mymoney1 = mymoney1 + 0;
            mymoney2 = mymoney2 + 0;
            mymoney3 = mymoney3 + 2;

        }
        else
        {
            num1 = 0;
            num2 = 0;
            mymoney1 = mymoney1 + 2;
            mymoney2 = mymoney2 + 0;
            mymoney3 = mymoney3 + 0;
        }


        mytxt.text = num.ToString();
        mytxt1.text = num1.ToString();
        mytxt4.text = num2.ToString();

        mytxt2.text = mymoney1.ToString();
        mytxt3.text = mymoney2.ToString();
        mytxt5.text = mymoney3.ToString();


        //Image img = GameObject.Find ("Image").GetComponent<Image> ();
        //img.color = UnityEngine.Color.red;
        //mytxt1.text =Random.Range(1,2).ToString();
        //float translation = Time.deltaTime * 10;
    }


    public void myfun1()
    {
        mymoney1 = mymoney1 - 1;
        mytxt2.text = mymoney1.ToString();

    }
    public void myfun2()
    {
        mymoney2 = mymoney2 - 1;

        mytxt3.text = mymoney2.ToString();
    }
    public void myfun3()
    {
        mymoney3 = mymoney3 - 1;

        mytxt5.text = mymoney3.ToString();
    }

}