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Dot and Lines Game

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wizzywas wizzywas is offline Offline
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Dot and Lines Game

 
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  #1
Feb 26th, 2009
Hi All,
I need a bit of help with a java Dots and Lines game i am developing, Similar to the Dots and Box game. I have laid out the Dots with the two colours blue and yellow which change accordingly.

I now need to draw a horizontal or a vertical line when 2 Dots are the same colour, Can anyone help me out with this.

I'm doing something similar to this:
http://i2.photobucket.com/albums/y6/...4/DotsGame.jpg

Here is the code i Have now:
Java Syntax (Toggle Plain Text) 
  1. import java.awt.*;
  2. import java.awt.event.*;
  3. import java.awt.Rectangle.*;
  4.  
  5. public class DotsGame
  6. {
  7.    public static void main( String[ ] args)
  8.    {
  9.       new Dots4Win();
  10.    }
  11. }
  12.  
  13. class Dots4Win extends Frame
  14. {
  15.    private int counter = 0 ;
  16.  
  17.    private Rectangle[][] dots = new Rectangle[7][7] ;
  18.  
  19.    /* 0 denotes black; 1 denotes red;  2 denotes blue */
  20.    private int[][] status = new int[7][7] ;
  21.  
  22.    Dots4Win()
  23.    {
  24.       setTitle( "Dots Game" );
  25.       setLocation( new Point( 200, 100 ) ) ;
  26.       setSize( 500, 500 );
  27.       setResizable( true ) ;  // this prevents re-sizing of window
  28.  
  29.       for ( int i = 0; i < 7; i++ )
  30.       {
  31.          for ( int j = 0; j < 7; j++ )
  32.          {
  33.             dots[i][j] = new Rectangle( 40 + 70*i, 70 + 40*j, 11, 11 ) ;
  34.  
  35.          }
  36.       }
  37.  
  38.       for ( int i = 0; i < 7; i++ )
  39.       {
  40.          for ( int j = 0; j < 7; j++ )
  41.          {
  42.             status[i][j] = 0 ;
  43.          }
  44.       }
  45.  
  46.       addMouseListener( new MouseCatcher() ) ;        // register a mouse listener
  47.       addWindowListener( new WindowCatcher( ) );      // register a window listener
  48.  
  49.       setVisible( true );
  50.    }
  51.  
  52.    public void paint( Graphics gc )
  53.    {
  54.       for ( int i = 0; i < 7; i++ )
  55.       {
  56.          for ( int j = 0; j < 7; j++ )
  57.          {
  58.             if ( status[i][j] == 0 )
  59.             {
  60.                gc.setColor( Color.black ) ;
  61.             }
  62.             else if ( status[i][j] == 1 )
  63.             {
  64.                gc.setColor(Color.red ) ;
  65.             }
  66.             else
  67.             {
  68.                gc.setColor( Color.yellow ) ;
  69.             }
  70.             gc.fillOval( dots[i][j].x, dots[i][j].y, dots[i][j].width, dots[i][j].height ) ;
  71.  
  72.          }
  73.       }
  74.    }
  75.  
  76.    class MouseCatcher extends MouseAdapter
  77.    {
  78.       public void mousePressed(MouseEvent evt )
  79.       {
  80.          Point ptMouse = evt.getPoint() ;
  81.  
  82.          for ( int i = 0; i < 7; i++ )
  83.          {
  84.             for ( int j = 0; j < 7; j++ )
  85.             {
  86.                if ( dots[i][j].contains( ptMouse ) && (status[i][j] == 0) )   // check you're on a black dot
  87.                {
  88.                   if ( counter % 2 == 0 )
  89.                   {
  90.                      status[i][j] = 1 ;
  91.                   }
  92.                   else
  93.                   {
  94.                      status[i][j] = 2 ;
  95.                   }
  96.                   counter++ ;
  97.                   repaint();
  98.                }
  99.             }
  100.          }
  101.       }
  102.    }
  103.  
  104.    class WindowCatcher extends WindowAdapter
  105.    {
  106.       public void windowClosing( WindowEvent evt )
  107.       {
  108.          evt.getWindow( ).dispose( );                // releases this window's resources
  109.          System.exit( 0 );
  110.       }
  111.    }
  112. }
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Join Date: Nov 2008
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Reputation: quuba is on a distinguished road 
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quuba quuba is offline Offline
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Re: Dot and Lines Game

 
0
  #2
Feb 28th, 2009
To draw line you need two points. Inside double loop you have access to one of them, current P(i,j). You need additional varibles to remember in the current loops these values, so you can use them on the next loop.
java Syntax (Toggle Plain Text) 
  1. void paintVertically(Graphics g) {
  2.         int i0 = 0;
  3.         int j0 = 0;
  4.         for (int i = 0; i < 7; i++) {
  5.             for (int j = 0; j < 7; j++) {
  6.                 if (status[i][j] == status[i0][j0]) { //the same status
  7.                     if (status[i][j] == 1) {
  8.                         g.setColor(Color.red);
  9.                     } else {
  10.                         g.setColor(Color.yellow);
  11.                     }
  12.                     if (status[i][j] != 0) {
  13.                         g.drawLine(dots[i0][j0].x, dots[i0][j0].y, dots[i][j].x, dots[i][j].y);
  14.                     }
  15.                 }
  16.                 //i0 = i;
  17.                 j0 = j;
  18.             }
  19.             i0 = i;
  20.         }
  21.     }
Invoke this inside paint function.
Make same with horizontal lines ( swap places of loops i-j --> j-i ).
Apply additional conditions ( do not draw line for this same point,do not draw diagonals ).
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