2x2 Chess Board
Question
I'm writing a 2x2 chess board. I have the code working where I press down it goes down but say I'm in the bottom grid I want to disable this button how do I go abouts doing that as I ant to disable certain buttons for certain grids but not the same buttons for all the grids
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class assignment1 extends JFrame implements ActionListener {
JPanel board, buttons;
JLabel G1, G2, G3, G4;
JButton B1, B2, B3, B4, B5, B6, B7, B8, B9;
ImageIcon i1 = new ImageIcon("Images/pawn.jpg");
ImageIcon a1 = new ImageIcon("Images/left_up.png");
ImageIcon a2 = new ImageIcon("Images/up.png");
ImageIcon a3 = new ImageIcon("Images/right_up.png");
ImageIcon a4 = new ImageIcon("Images/left.png");
ImageIcon a5 = new ImageIcon("Images/reset.png");
ImageIcon a6 = new ImageIcon("Images/right.png");
ImageIcon a7 = new ImageIcon("Images/left_down.png");
ImageIcon a8 = new ImageIcon("Images/down.png");
ImageIcon a9 = new ImageIcon("Images/right_down.png");
public static void main(String[]args){
assignment1 frame = new assignment1();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public assignment1() {
super("Chess Board");
Container c = getContentPane();
c.setLayout(new GridLayout (2,3));
board = new JPanel();
board.setLayout(new GridLayout(2,2,4,4));
JPanel buttons = new JPanel();
buttons.setLayout(new GridLayout(3,3,2,2));
G1 = new JLabel(i1);
G1.setBackground(Color.white);
G1.setOpaque(true);
G1.setIcon(i1);
board.add(G1);
G2 = new JLabel(i1);
G2.setBackground(Color.black);
G2.setOpaque(true);
G2.setIcon(null);
board.add(G2);
G3 = new JLabel(i1);
G3.setBackground(Color.black);
G3.setOpaque(true);
G3.setIcon(null);
board.add(G3);
G4 = new JLabel(i1);
G4.setBackground(Color.white);
G4.setOpaque(true);
G4.setIcon(null);
board.add(G4);
c.add(board);
//c.add(board.BorderLayout.NORTH);
c.add(buttons);
B1 = new JButton(a1);
buttons.add(B1);
B2 = new JButton(a2);
buttons.add(B2);
B3 = new JButton(a3);
buttons.add(B3);
B4 = new JButton(a4);
buttons.add(B4);
B5 = new JButton(a5);
buttons.add(B5);
B6 = new JButton(a6);
buttons.add(B6);
B7 = new JButton(a7);
buttons.add(B7);
B8 = new JButton(a8);
buttons.add(B8);
B9 = new JButton(a9);
buttons.add(B9);
B1.addActionListener(this);
B2.addActionListener(this);
B3.addActionListener(this);
B4.addActionListener(this);
B5.addActionListener(this);
B6.addActionListener(this);
B7.addActionListener(this);
B8.addActionListener(this);
B9.addActionListener(this);
setVisible(true);
setSize(500,500);
}
public void actionPerformed(ActionEvent e) {
//if statement for Grid 1 Button 6 Right
if (G1.getIcon() == i1)
{
if(e.getSource() == B6)
{
G1.setIcon(null);
G2.setIcon(i1);
}
}
//if statement for Grid 1 Button 9 Right_down
if (G1.getIcon() == i1)
{
if(e.getSource() == B9)
{
G1.setIcon(null);
G4.setIcon(i1);
}
}
//if statement for Grid 1 Button 8 Down
if (G1.getIcon() == i1)
{
if(e.getSource() == B8)
{
G1.setIcon(null);
G3.setIcon(i1);
}
}
//if statement for Grid 2 Button 4 Left
if(G2.getIcon() == i1)
{
if(e.getSource() == B4)
{
G2.setIcon(null);
G1.setIcon(i1);
}
}
//if statement for Grid 2 Button 7 left Down
if(G2.getIcon() == i1)
{
if(e.getSource() == B7)
{
G2.setIcon(null);
G3.setIcon(i1);
}
}
//if statement for Grid 2 Button 8 Down
if(G2.getIcon() == i1)
{
if(e.getSource() == B8)
{
G2.setIcon(null);
G4.setIcon(i1);
}
}
//if statement for Grid 3 Button 2 Up
if(G3.getIcon() == i1)
{
if(e.getSource() == B2)
{
G3.setIcon(null);
G1.setIcon(i1);
}
}
//if statement for Grid 3 Button 6 right
if(G3.getIcon() == i1)
{
if(e.getSource() == B6)
{
G3.setIcon(null);
G4.setIcon(i1);
}
}
//if statement for Grid 3 Button 3 right Up
if(G3.getIcon() == i1)
{
if(e.getSource() == B3)
{
G3.setIcon(null);
G2.setIcon(i1);
}
}
//if statement for Grid 4 Button 2 Up
if(G4.getIcon() == i1)
{
if(e.getSource() == B2)
{
G4.setIcon(null);
G2.setIcon(i1);
}
}
//if statement for Grid 4 Button 4 Left
if(G4.getIcon() == i1)
{
if(e.getSource() == B4)
{
G4.setIcon(null);
G3.setIcon(i1);
}
}
//if statement for Grid 4 Button 1 Left Up
if(G4.getIcon() == i1)
{
if(e.getSource() == B1)
{
G4.setIcon(null);
G1.setIcon(i1);
}
}
//reset Button
if (e.getSource() == B5)
{
G1.setIcon(i1);
G2.setIcon(null);
G3.setIcon(null);
G4.setIcon(null);
}
}
}
4 answers
solution1
0 2013-11-06 16:25:08
Add to actionPerformed function : before every action check you curent position, so if it's left bottom when you press f/e. button 2 nothing should happen. Or I didn't get your question.
solution2
0 2013-11-06 16:27:26
You keep a note of where the pawn is
int x=0, y=0;
When you move the pawn, you check if x is == 1, if it is then you disable the right hand buttons, if it == 0 then you disable the left. then you do the same with y.
Just make sure and update them every time you move.
//change x and y based on button clicked
if (x==1)
{
//disable right buttons & enable left
}
else if (x==0)
{
//disable left buttons & enable right
}
if (y==1)
{
//disable down buttons & enable up
}
else if (y==0)
{
//disable up buttons & enable down
}
solution3
0 2013-11-06 16:46:23
I ant to disable certain buttons for certain grids but not the same buttons for all the grids
GridLayout with Component's left-to-right orientation it lay outs the component with the order you are adding. So For a 2x2 gird:
jPanel1.setLayout(new GridLayout(2, 2));
jPanel1.add(button1); //button1 is at grid (1, 1)
jPanel1.add(button2); //button2 is at grid (1, 2)
jPanel1.add(button3); //button3 is at grid (2, 1)
jPanel1.add(button4); //button4 is at grid (2, 2)
So, to finds a component at grid cell (row, col) and work with it, it is actually easy: First, find the index of the component and then ask jPanel1 to return it:
GridLayout layout = (GridLayout) jPanel1.getLayout();
int numCol = layout.getColumns();
int index = (row-1)*numCol + col-1;
if(index < jPanel1.getComponentCount())
jPanel1.getComponent(index).setEnabled(false);
solution4
0 ACCPTED 2014-03-22 20:21:09
Okay I know I'm a bit late with this one and I probably should have gotten back a little earlier than now but I wanted to share my code that I got working just in case there are any body else that wanted to make a chess board well I only made a 2x2 but you could probably expand on from this
//importing java swing and awt to help program work
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class assignment1 extends JFrame implements ActionListener {
//declaring the JPanel, JLabel and JButton's Globally
JPanel board, buttons;
JLabel grid1, grid2, grid3, grid4;
JButton button1, button2, button3, button4, button5, button6, button7, button8, button9;
//Declaring images globally
ImageIcon pawn = new ImageIcon("Images/pawn.png");
ImageIcon arrow1 = new ImageIcon("Images/left_up.png");
ImageIcon arrow2 = new ImageIcon("Images/up.png");
ImageIcon arrow3 = new ImageIcon("Images/right_up.png");
ImageIcon arrow4 = new ImageIcon("Images/left.png");
ImageIcon arrow5 = new ImageIcon("Images/reset.png");
ImageIcon arrow6 = new ImageIcon("Images/right.png");
ImageIcon arrow7 = new ImageIcon("Images/left_down.png");
ImageIcon arrow8 = new ImageIcon("Images/down.png");
ImageIcon arrow9 = new ImageIcon("Images/right_down.png");
public static void main(String[]args){
assignment1 frame = new assignment1();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public assignment1() {
super("Chess Board");
Container c = getContentPane();
c.setLayout(new GridLayout (2,2));
//setting up new JPanel for board to display the 4 grids
board = new JPanel();
board.setLayout(new GridLayout(2,2,4,4));
JPanel buttons = new JPanel();
buttons.setLayout(new GridLayout(3,3,2,2));
//setting up grid1
grid1 = new JLabel(pawn);//placing the image in the background of the grid
grid1.setBackground(Color.white);
grid1.setOpaque(true);
grid1.setIcon(pawn);//displaying image
//adding grid1 to the board
board.add(grid1);
//setting up grid2
grid2 = new JLabel(pawn);//placing the image in the background of the grid
grid2.setBackground(Color.black);
grid2.setOpaque(true);
grid2.setIcon(null);//setting icon to null
//adding grid2 to the board
board.add(grid2);
//setting up grid3
grid3 = new JLabel(pawn);//placing the image in the background of the grid
grid3.setBackground(Color.black);
grid3.setOpaque(true);
grid3.setIcon(null);//setting icon to null
//adding grid3 to the board
board.add(grid3);
//setting up grid4
grid4 = new JLabel(pawn);//placing the image in the background of the grid
grid4.setBackground(Color.white);
grid4.setOpaque(true);
grid4.setIcon(null);//setting icon to null
//adding grid4 to the board
board.add(grid4);
//adding board to the container
c.add(board);
//adding buttons to the container
c.add(buttons);
//Creating button 1 and adding an image to Button 1
button1 = new JButton(arrow1);
buttons.add(button1);
button1.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 2 and adding an image to Button 2
button2 = new JButton(arrow2);
buttons.add(button2);
button2.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 3 and adding an image to Button 3
button3 = new JButton(arrow3);
buttons.add(button3);
button3.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 4 and adding an image to Button 4
button4 = new JButton(arrow4);
buttons.add(button4);
button4.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 5 and adding an image to Button 5
button5 = new JButton(arrow5);
buttons.add(button5);
button5.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 6 and adding an image to Button 6
button6 = new JButton(arrow6);
buttons.add(button6);
button6.setEnabled(true);//hard setting the button so that the start up will enable this button
//Creating button 7 and adding an image to Button 7
button7 = new JButton(arrow7);
buttons.add(button7);
button7.setEnabled(false);//hard setting the button so that the start up will disable this button
//Creating button 8 and adding an image to Button 8
button8 = new JButton(arrow8);
buttons.add(button8);
button8.setEnabled(true);//hard setting the button so that the start up will enable this button
//Creating button 9 and adding an image to Button 9
button9 = new JButton(arrow9);
buttons.add(button9);
button9.setEnabled(true);//hard setting the button so that the start up will enable this button
//method for button 1
button1.addActionListener( new ActionListener()
{
public void actionPerformed(ActionEvent buttonOne)
{
firstButtonPerformed(buttonOne);
}
});
//method for button 2
button2.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonTwo)
{
secondButtonPerformed(buttonTwo);
}
});
//method for button 3
button3.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonThree)
{
thirdButtonPerformed(buttonThree);
}
});
//method for button 4
button4.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonFour)
{
fourthButtonPerformed(buttonFour);
}
});
//method for button 5
button5.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonFive)
{
fifthButtonPerformed(buttonFive);
}
});
//method for button 6
button6.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonSix)
{
sixthButtonPerformed(buttonSix);
}
});
//method for button 7
button7.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonSeven)
{
seventhButtonPerformed(buttonSeven);
}
});
//method for button 8
button8.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonEight)
{
eightButtonPerformed(buttonEight);
}
});
//method for button 9
button9.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent buttonNine)
{
ninethButtonPerformed(buttonNine);
}
});
setVisible(true);
setSize(500,500);
}
public void firstButtonPerformed(ActionEvent buttonOne)
{
//if statement for Grid 4 Button 1 Left Up
if(grid4.getIcon() == pawn)
{
if(buttonOne.getSource() == button1)
{
grid4.setIcon(null);
grid1.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(false);
button5.setEnabled(false);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(true);
button9.setEnabled(true);
}
}//end of if statement
}
public void secondButtonPerformed(ActionEvent buttonTwo)
{
//if statement for Grid 3 Button 2 Up
if(grid3.getIcon() == pawn)
{
if(buttonTwo.getSource() == button2)
{
grid3.setIcon(null);
grid1.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(false);
button5.setEnabled(false);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(true);
button9.setEnabled(true);
}
}//end of if statement
//start of else if statement for button 2 for grid 2
else if(grid4.getIcon() == pawn)
{
if(buttonTwo.getSource() == button2)
{
grid4.setIcon(null);
grid2.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(false);
button5.setEnabled(true);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(true);
button9.setEnabled(true);
}
}//end of if statement
}
public void thirdButtonPerformed(ActionEvent buttonThree)
{
//if statement for Grid 3 Button 3 right Up
if(grid3.getIcon() == pawn)
{
if(buttonThree.getSource() == button3)
{
grid3.setIcon(null);
grid2.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(true);
button5.setEnabled(true);
button6.setEnabled(false);
button7.setEnabled(true);
button8.setEnabled(true);
button9.setEnabled(false);
}
}//end of if statement
}
public void fourthButtonPerformed(ActionEvent buttonFour)
{
//if statement for Grid 2 Button 4 Left
if(grid2.getIcon() == pawn)
{
if(buttonFour.getSource() == button4)
{
grid2.setIcon(null);
grid1.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(false);
button5.setEnabled(false);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(true);
button9.setEnabled(true);
}
}//end of if statement
//start of else if statement for button4 for grid 3
else if(grid4.getIcon() == pawn)
{
if(buttonFour.getSource() == button4)
{
grid4.setIcon(null);
grid3.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(true);
button3.setEnabled(true);
button4.setEnabled(false);
button5.setEnabled(true);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of else if statement
}
public void fifthButtonPerformed(ActionEvent buttonFive)
{
//reset Button if statement
if (buttonFive.getSource() == button5)
{
grid1.setIcon(pawn);
grid2.setIcon(null);
grid3.setIcon(null);
grid4.setIcon(null);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(false);
button5.setEnabled(false);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(true);
button9.setEnabled(true);
}//end of reset button if statement
}
public void sixthButtonPerformed(ActionEvent buttonSix)
{
//if statement for Grid 1 Button 6 Right
if (grid1.getIcon() == pawn)
{
if(buttonSix.getSource() == button6)
{
grid1.setIcon(null);
grid2.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(false);
button3.setEnabled(false);
button4.setEnabled(true);
button5.setEnabled(true);
button6.setEnabled(false);
button7.setEnabled(true);
button8.setEnabled(true);
button9.setEnabled(false);
}
}//end of if statement
//start of else if statement for button6 for grid4
else if (grid3.getIcon() == pawn)
{
if(buttonSix.getSource() == button6)
{
grid3.setIcon(null);
grid4.setIcon(pawn);
button1.setEnabled(true);
button2.setEnabled(true);
button3.setEnabled(false);
button4.setEnabled(true);
button5.setEnabled(true);
button6.setEnabled(false);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of else if statement
}
public void seventhButtonPerformed(ActionEvent buttonSeven)
{
//if statement for Grid 2 Button 7 left Down
if(grid2.getIcon() == pawn)
{
if(buttonSeven.getSource() == button7)
{
grid2.setIcon(null);
grid3.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(true);
button3.setEnabled(true);
button4.setEnabled(false);
button5.setEnabled(true);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of if statement
}
public void eightButtonPerformed(ActionEvent buttonEight)
{
//if statement for Grid 1 Button 8 Down
if (grid1.getIcon() == pawn)
{
if(buttonEight.getSource() == button8)
{
grid1.setIcon(null);
grid3.setIcon(pawn);
button1.setEnabled(false);
button2.setEnabled(true);
button3.setEnabled(true);
button4.setEnabled(false);
button5.setEnabled(true);
button6.setEnabled(true);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of if statement
//start of else if statement for button 8 grid4
else if (grid2.getIcon() == pawn)
{
if(buttonEight.getSource() == button8)
{
grid2.setIcon(null);
grid4.setIcon(pawn);
button1.setEnabled(true);
button2.setEnabled(true);
button3.setEnabled(false);
button4.setEnabled(true);
button5.setEnabled(true);
button6.setEnabled(false);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of else if statement
}
public void ninethButtonPerformed(ActionEvent buttonNine)
{
//if statement for Grid 1 Button 9 Right_down
if (grid1.getIcon() == pawn)
{
if(buttonNine.getSource() == button9)
{
grid1.setIcon(null);
grid4.setIcon(pawn);
button1.setEnabled(true);
button2.setEnabled(true);
button3.setEnabled(false);
button4.setEnabled(true);
button5.setEnabled(true);
button6.setEnabled(false);
button7.setEnabled(false);
button8.setEnabled(false);
button9.setEnabled(false);
}
}//end of if statement
}
public void actionPerformed(ActionEvent e)
{
}
}
I hope this helps anybody that needs it
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