Full Source C# Code for Balloon Popping Game in Visual Studio –

Below is the full C# source for the balloon poppping game, make sure you have followed along accurately and if there if any line showing red highlight under it check it with the code from below.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

using System.Windows.Threading; // add this line for the timer

namespace Balloon_Pop_Game
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        //create a new timer called game timer
        DispatcherTimer gameTimer = new DispatcherTimer();
        // set initial speed to 3
        int speed = 3;
        // set initial intervals to 90
        int intervals = 90;
        // create a new random number generator class
        Random rand = new Random();
        // a list to remove items from the canvas
        List<Rectangle> itemRemover = new List<Rectangle>();
        // background image texture class
        ImageBrush background = new ImageBrush();
        // integer to keep track of different balloon images
        int balloonSkins;
        // this integer will be used move the balloons left or right slightly
        int i;
        // missed balloon count integer
        int missedBalloons;
        // boolean to check if the game is active or not
        bool gameisactive;
        // score counter
        int score;
        // create a new media player to link the pop sound to
        private MediaPlayer player = new MediaPlayer();


        public MainWindow()
        {
            InitializeComponent();

            //start loading the default settings
            gameTimer.Tick += gameEngine; // link the timer to the game engine event
            gameTimer.Interval = TimeSpan.FromMilliseconds(20); // set timer interval to 20 milliseconds
            // set the background image for the canvas
            background.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/background-Image.jpg"));
            MyCanvas.Background = background;
            // run the reset game function
            ResetGame();
        }

        private void canvasKeyIsDown(object sender, KeyEventArgs e)
        {
            // if the space key is pressed and the game is not active
            if (e.Key == Key.Space && gameisactive == false)
            {
                // run the reset function
                ResetGame();
            }
        }

        private void popBalloons(object sender, MouseButtonEventArgs e)
        {
            // check i the game is active
            // this method will stop the player from the clicking the buttons when the game has stopped
            if (gameisactive)
            {
                if (e.OriginalSource is Rectangle)
                {
                    // if the click source is a rectangle then we will create a new rectangle
                    // and link it to the rectangle that sent the click event
                    Rectangle activeRec = (Rectangle)e.OriginalSource; // create the link between the sender rectangle

                    //load the mp3 file to the player URI
                    player.Open(new Uri("../../files/pop_sound.mp3", UriKind.RelativeOrAbsolute));
                    player.Play(); // play the mp3 file
                    MyCanvas.Children.Remove(activeRec); // find the rectangle and remove it from the canvas
                    score++; // add 1 to the score
                }
            }
        }

        private void startGame()
        {
            // this function will start the game
            // first start the timer
            gameTimer.Start();
            // set missed balloon to 0
            missedBalloons = 0;
            // set score to 0
            score = 0;
            // set intervals to 90
            intervals = 90;
            // change game is active boolean to true
            gameisactive = true;

            speed = 3; // set speed to 3
        }

        private void ResetGame()
        {
            // this function will reset the game and remove any unused item from the canvas
            // run loop to find any rectangles in this canvas
            foreach (var x in MyCanvas.Children.OfType<Rectangle>())
            {
                // if found add it to the item remover list
                itemRemover.Add(x);
            }

            // check if there is any rectangles in the item remover list
            foreach (Rectangle y in itemRemover)
            {
                // if found remove it from the canvas
                MyCanvas.Children.Remove(y);
            }
            // clear everything form the list
            itemRemover.Clear();
            // start the game function
            startGame();
        }

        private void gameEngine(object sender, EventArgs e)
        {
            
                scoreLabel.Content = "Score: " + score; // link the score integer to the score label

                // deduct 10 from the intervals number
                intervals -= 10;
                // if interval is less than 1 then we will make new balloons for this game
                if (intervals < 1)
                {
                    // first create a new image brush for the balloons called balloomImage
                    ImageBrush balloonImage = new ImageBrush();
                    // add 1 to the balloon skins integer
                    balloonSkins += 1;

                    // if the skins integer goes above 5 reset back to 1
                    if (balloonSkins > 5)
                    {
                        balloonSkins = 1;
                    }

                    // check which skin number is selected and change them to that number
                    switch (balloonSkins)
                    {
                        case 1:
                            balloonImage.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/balloon1.png"));
                            break;
                        case 2:
                            balloonImage.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/balloon2.png"));
                            break;
                        case 3:
                            balloonImage.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/balloon3.png"));
                            break;
                        case 4:
                            balloonImage.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/balloon4.png"));
                            break;
                        case 5:
                            balloonImage.ImageSource = new BitmapImage(new Uri("pack://application:,,,/files/balloon5.png"));
                            break;
                    }

                    // make a new rectangle called new balloon
                    // inside this it has a tag called bloon, height 70 pixels and width 50 pixels and balloon image as the background
                    Rectangle newBalloon = new Rectangle
                    {
                        Tag = "bloon",
                        Height = 70,
                        Width = 50,
                        Fill = balloonImage
                    };

                    // set the top location of the balloon to 600 pixels so it spawns below the main window
                    Canvas.SetTop(newBalloon, 600);
                    // randomly set the left position between these two numbers
                    Canvas.SetLeft(newBalloon, rand.Next(50, 400));
                    // add the new item to the screen
                    MyCanvas.Children.Add(newBalloon);
                    // set the next interval between these two numbers
                    intervals = rand.Next(80, 140);
                }

                //this is the main game loop
                // find any rectangles present in this canvas
                foreach (var x in MyCanvas.Children.OfType<Rectangle>())
                {

                    // if the item is rectangle and has a tag bloon
                    if (x is Rectangle && (string)x.Tag == "bloon")
                    {
                        // randomly select between two numbers
                        i = rand.Next(-5, 5);
                        // move the balloon object towards top of the screen
                        Canvas.SetTop(x, Canvas.GetTop(x) - speed);
                        // randomly move the objects left and right position with i integer values
                        Canvas.SetLeft(x, Canvas.GetLeft(x) - (i * -1));

                    }

                    // if the balloon reach top of the screen
                    if (Canvas.GetTop(x) < 20)
                    {
                        // remove them
                        itemRemover.Add(x);
                        // add 1 missed integer
                        missedBalloons++;
                    }
                }

                // if you miss more than 10 balloons
                if (missedBalloons > 10)
                {
                    gameisactive = false;// set game active to false
                    gameTimer.Stop(); // stop the timer
                                      // show the message box below
                    MessageBox.Show("You missed 10 Balloons, press space to restart");
                }

                // if score if more than 20
                if (score > 20)
                {
                    // change the speed to 6
                    speed = 6;
                }


                // garbage collection
                // remove any item thats been added to the item remover list
                foreach (Rectangle y in itemRemover)
                {
                    MyCanvas.Children.Remove(y);
                }
            }
    }
}