Mega Casino update

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MegaChallengeCasino
{
    public partial class Default : System.Web.UI.Page
    {
        Random random = new Random();

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                string[] reels = new string[] { spinReel(), spinReel(), spinReel() };
                displayImages(reels);
                ViewState.Add("PlayersMoney", 100);
                displayPlayersMoney();
            }
        }

        protected void pullLeverButton_Click(object sender, EventArgs e)
        {
            int bet = 0;
            if (!int.TryParse(betTextBox.Text, out bet)) return;

            int winnings = pullLever(bet);
            displayResult(bet, winnings);
            adjustPlayersMoney(bet, winnings);
            displayPlayersMoney();

        }
        private void adjustPlayersMoney(int bet, int winnings)
        {
            int playersMoney = int.Parse(ViewState["PlayersMoney"].ToString());
            playersMoney -= bet;
            playersMoney += winnings;
            ViewState["PlayersMoney"] = playersMoney;
        }
        private int pullLever(int bet)
        {
            string[] reels = new String[] { spinReel(), spinReel(), spinReel() };
            displayImages(reels);
            int multiplier = evaluateSpin(reels);
            return bet * multiplier;
        }
        private int evaluateSpin(string[] reels)
        {
            // If there's even one bar, then return 0;
            if (isBar(reels)) return 0;

            // If there's three 7's, then return 100;
            if (isJackpot(reels)) return 100;

            //If there's one or more cherries, return 2,3,4;
            int multipier = 0;
            if (isWinner(reels, out multipier)) return multipier;

            return 0;
        }
        private void displayPlayersMoney()
        {
            moneyLabel.Text = String.Format("Player's Money: {0:C}", ViewState["PlayersMoney"]);
        }



        private void displayResult(int bet, int winnings)
        {
           if (winnings > 0)
           {
               resultLabel.Text = String.Format("You bet {0:C} and won {1:C}!", bet, winnings);
           }
           else
           {
               resultLabel.Text = String.Format("Sorry, You lost {0:C}.  Better Luck Next Time!", bet);
           }
        }
        private bool isWinner(string[] reels, out int multipier)
        {
            multipier = determineMultiplier(reels);
            if (multipier > 0) return true;
            else
                return false;
        }

        private int determineMultiplier(string[] reels)
        {
            int cherryCount = determineCherryCount(reels);
            if (cherryCount == 1) return 2;
            if (cherryCount == 2) return 3;
            if (cherryCount == 3) return 4;
            return 0;
        }

        private int determineCherryCount(string[] reels)
        {
            int cherryCount = 0;
            if (reels[0] == "Cherry") cherryCount++;
            if (reels[1] == "Cherry") cherryCount++;
            if (reels[2] == "Cherry") cherryCount++;
            return cherryCount;
        }

        private bool isBar(string[] reels)
        {
            if (reels[0] == "Bar.png" || reels[1] == "Bar.png" || reels[2] == "Bar.png")
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        private bool isJackpot(string[] reels)
        {
            if (reels[0] == "Seven.png" && reels[1] == "Seven.png" && reels[2] == "Seven.png")
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        private void displayImages(string[] reels)
        {
            Image1.ImageUrl = "/Images/" + reels[0] + ".png" ;
            Image2.ImageUrl = "/Images/" + reels[1] + ".png" ;
            Image3.ImageUrl = "/Images/" + reels[2] + ".png" ;
        }

        private string spinReel()
        {
            string[] images = new string[] { "Strawberry", "Bar", "Lemon", "Bell", "Clover", "Cherry", "Diamond", "Orange", "Seven", "HorseShoe", "Plum", "Watermelon" };
            return images[random.Next(11)];
        }


    }
}