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Posted 31 Mar 2005

Clickmania Game

, 31 Mar 2005
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A simple logical game.

Introduction

I once stepped on Clickomania next generation from Matthias Schüssler and liked the game so much that I decided to implement that game in C# from scratch. My version is simpler but uses a lot of the same design. I tested the game on an Athlon 2000+ and it seemed to work smoothly.

Features

  • Animations and sounds.
  • Save the high scores (Top 10).
  • Take back move.

The object model

I use two big classes, MainForm and Engine. The MainForm deals with events, drawing and animation, the Engine contains the logic. I also use three structs, one for the Scores (Score, Player name, Date etc...):

public struct Scores
{
    public int _iScores;    // score
    public string _sNames;  // player name
    public int _SbestMove;  // his best move
    public int _SballsLeft; // balls left after game over
    public int _Stime;      // time for that game
    public string _Date;    // the date he played (mm/dd/yyyy mm:ss)
    public int _sTakeBacks; // how many times did he take back 
                            // during the game
}

One for the Ball:

public struct Ball
{
    public int _icolor;          // its color
    public bool _exists;         // does it still exist
    public bool _isDisappearing; // is it in animation status
    public int _vel;             // velocity of animation
    public int _yvel; 
}

and one for the Turn, which contains information about the disappeared balls, their position and the moved columns, so the moves can be taken back:

public struct Turn
{
    public int _itColor;   // Color of disappeared balls
    public int [] _itposX; // Position
    public int [] _itposY;
    public int [] _column; // Disappeared columns
}

A bit about the logic

On the PictureBox, the balls seem to move, but actually they don't. The balls array stores 8x12 balls. They stay at their place on the board. They only change color or get the status _exist = false when they are supposed to be gone.

When the player clicks on the ball, it checks if it belongs to a group of balls with the same color. This is done with a recursive function:

private int CheckNextBall(int x, int y, int color)
{
    int px, nx, py, ny;
    px = (x == 0 ? 0 : x - 1);  //prior X
    nx = (x == 7 ? 7 : x + 1);  //next X
    py = (y == 0 ? 0 : y - 1);  //prior Y
    ny = (y == 11 ? 11 : y + 1);//next Y
    int ret = 1;
    // the 4 "if" statements do basically the 
    // same, they check if the 
    // neighbour of the actual ball has the same color
    if((_ball[px, y]._icolor == color) && (_ball[px, y]._exists) && (px != x))
    {
        // make it inexistant
        _ball[px, y]._exists = false;
        // to animate it in the main form 
        _ball[px, y]._isDisappearing = true;
        // save color of ball( so we can take the turn back) 
        _turn[_turn.GetLength(0) - 1]._itColor = color;
        _X[_index] = px; // and save its position (for the same reason)
        _Y[_index] = y;
        _index++;
        ret += CheckNextBall(px, y, color);
    }
    if((_ball[nx, y]._icolor == color) && (_ball[nx, y]._exists) && (nx != x))
    {
        _ball[nx, y]._exists = false;
        _ball[nx, y]._isDisappearing = true;
        _turn[_turn.GetLength(0) - 1]._itColor = color;
        _X[_index] = nx;
        _Y[_index] = y;
        _index++;
        ret += CheckNextBall(nx, y, color);
    }
    if((_ball[x, py]._icolor == color) && (_ball[x, py]._exists) && (py != y))
    {
        _ball[x, py]._exists = false;
        _ball[x, py]._isDisappearing = true;
        _turn[_turn.GetLength(0) - 1]._itColor = color;
        _X[_index] = x;
        _Y[_index] = py;
        _index++;
        ret += CheckNextBall(x, py, color);
    }
    if((_ball[x, ny]._icolor == color) && (_ball[x, ny]._exists) && (ny != y))
    {
        _ball[x, ny]._exists = false;
        _ball[x, ny]._isDisappearing = true;
        _turn[_turn.GetLength(0) - 1]._itColor = color;
        _X[_index] = x;
        _Y[_index] = ny;
        _index++;
        ret += CheckNextBall(x, ny, color);
    }
    return ret;
}

This function checks the color of the four neighboring balls, and if they have the same color, sets its state to disappearing and checks the neighbors for their colors. It also saves the information about color and position in the Turn struct, so that the player can take back the move if he wants to.

Animation

This is done in the Mainform class using global variables of position and size of animated balls, and the pictureBox.Refresh() method. For example to make balls appear or disappear, do the following:

/// <summary>
/// Balls Disappear or appear
/// </summary>
/// <param name="appear"> if they are appearing or disappearing</param>
public void MakeBallsAppear(bool appear)
{
    if(!appear)
    {
        PlayWav(1); // play a sound
        // redraw all balls, but animate only thosse with appear state
        // this occours when balls that are clicked disappear
        for(int i = 0; i < 12; i++)
        {
           _var = i;
           Thread.Sleep(10); // sleep 10 ms between 2 frames
           this.pictureBox1.Refresh();
        }
        _var = 0;
    }
    else
    {
        PlayWav(8);
        // same thng here too, but balls reappaer when 
        // player takes a move back
        for(int i = 11; i >= 0; i--)
        {
            _var = i;
            Thread.Sleep(10);
            this.pictureBox1.Refresh();
        }
    }
}

The Paint event draws one frame when pictureBox.Refresh() is called in the loop above. We also wait for 10 ms before painting the next frame, so that the animations wouldn't appear faster on faster machines:

/// <summary>
/// here all the drawing takes place. for each 
/// frame, this event is called once, 
/// whith a different _var, _posx or _posy 
/// if an animation takes place
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{ 
    Graphics g = e.Graphics;
    for(int i = 0; i < 8; i++)
    {
        for(int j = 0; j < 12; j++)
        {
            if(engine._ball[i, j]._exists)
            {
                g.DrawImage(_bmp[engine._ball[i, j]._icolor], 
                  (i * 24) - _posx * engine._ball[i, j]._yvel, 
                   (j * 24) + _posy * engine._ball[i, j]._vel, 
                                                      24, 24);
            }
            if(engine._ball[i, j]._isDisappearing)
            {
                g.DrawImage(_bmp[engine._ball[i, j]._icolor], 
                            (i * 24) + _var, (j * 24) + _var, 
                               24 - (_var*2), 24 - (_var*2));
            }
        }
    }
    if((_gameover) && (!_gamewon))
    {
        // shadow of the text
        g.DrawString("GAME OVER", new Font("Arial", 20), 
                           System.Drawing.Brushes.Black,    
                                    new Point(10, 122)); 
        g.DrawString("GAME OVER", new Font("Arial", 20), 
                       System.Drawing.Brushes.LightBlue,
                                     new Point(8, 120));
    }
    if(_gamewon)
    {
        // shadow of the text
        g.DrawString("GAME WON", new Font("Arial", 20, 
                        System.Drawing.FontStyle.Bold),
                          System.Drawing.Brushes.Black, 
                                    new Point(12, 122)); 
        g.DrawString("GAME WON", new Font("Arial", 20, 
                       System.Drawing.FontStyle.Bold), 
                        System.Drawing.Brushes.Yellow, 
                                  new Point(10, 120));
    }
}

Sounds

The PlaySound(...) method from winmm.dll is used to play with WAV files:

[DllImport("winmm.dll")]
private static extern bool PlaySound( string lpszName, 
                                int hModule, int dwFlags );
private void PlayWav(int play)
{
    if(checkBox1.Checked)
    {
        string myFile = ".\\Sounds\\default.wav";
        switch(play)
        {
            case 1:
                myFile = ".\\Sounds\\BallDisappear.wav";
                break;
            case 2:
                myFile = ".\\Sounds\\BallDown.wav";
                break;
            case 3:
                myFile = ".\\Sounds\\lost.wav";
                break;
            case 4:
                myFile = ".\\Sounds\\newgame.wav";
                break;
            case 5:
                myFile = ".\\Sounds\\ColumnDis.wav";
                break;
            case 6:
                myFile = ".\\Sounds\\ColumnAppear.wav";
                break;
            case 7:
                myFile = ".\\Sounds\\BallUp.wav";
                break;
            case 8:
                myFile = ".\\Sounds\\BallAppear.wav";
                break;
            case 9:
                myFile = ".\\Sounds\\Won.wav";
                break;
            case 10:
                myFile = ".\\Sounds\\illegal.wav";
                break;
            default:
                break;
        }
        PlaySound(myFile, 0, 0x0003); // Play the sound
    }
}

The WAV files have to be in the subfolder Sounds of the folder containing Clickmania.exe. I have used some sounds of the game Half Life 2. If you want to use your own sounds, you can upload them to the sounds folder and rename them.

Scores

All scores are stored in a binary file called Scores.sco in the same folder as the exe. If this file does not exist, it will be generated when the game is run. This file also contains the name of the last user who reached the top 10, so he shouldn't reenter his name if he reaches the top10 again. To view the high scores, I have used the ListView control:

private void PopulateListbox()
{
    string name, score;
    listView1.Items.Clear(); // remove items in listview
    ListViewItem [] items = new ListViewItem[10];
    //DateTime date;
    Color textColor = new Color();
    Font font;
    for(int i = 0; i < 10; i++)
    {
        name = (i + 1).ToString() + ":" + 
                  " " + _MF._stScores[i]._sNames;
        score = _MF._stScores[i]._iScores.ToString();
        if (i == 9)name = (i + 1).ToString() + ":" + 
                        " " + _MF._stScores[i]._sNames;
        textColor = _MF._stScores[i]._SballsLeft == 0 ?
           System.Drawing.Color.Blue : System.Drawing.Color.Black;
        textColor = (_MF._stScores[i]._sTakeBacks == 0 &&
                     _MF._stScores[i]._SballsLeft == 0) ? 
                               Color.DarkRed : textColor;
        font = (textColor == Color.Black) ? 
             new Font("Arial", 8) : new Font("Fixedsys", 8,
                       (_MF._stScores[i]._sTakeBacks == 0) ? 
                       FontStyle.Italic : FontStyle.Regular);
        items[i] = new ListViewItem(new string[] {name, score,
                                          _MF._stScores[i]._Date,
                              _MF._stScores[i]._Stime.ToString(),
                          _MF._stScores[i]._SbestMove.ToString(),
                         _MF._stScores[i]._SballsLeft.ToString(),
                        _MF._stScores[i]._sTakeBacks.ToString()},
                               -1, textColor, Color.White, font);
        listView1.Items.Add(items[i]);
    }
}

Information is shown in a different color according to how the game was played, for example if the player left no balls or if he took no moves back.

About the program

This is one of my first C# implementations, so be indulgent if my code seems junk at some places.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

aaccoobb
United Kingdom United Kingdom
aasdfa

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Comments and Discussions

 
GeneralDrawing the circle shape Pin
walshi2k714-Nov-08 10:42
memberwalshi2k714-Nov-08 10:42 
Generalcoding style Pin
sufwan25-May-06 3:35
membersufwan25-May-06 3:35 
GeneralShame on you! Pin
Lebesgue11-Apr-05 1:11
sussLebesgue11-Apr-05 1:11 
GeneralRe: Shame on you! Pin
Michael J. Collins14-Jun-05 11:10
memberMichael J. Collins14-Jun-05 11:10 

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