The mouse and the cheese

[Don Quixote]

Hello people. I'm having a big problem on how to move an object, like a mouse in an matrix seeking for the cheese. I don't know if java supports this, but if you know, please let me know...
Thanks

[hardwired]

How do you have in mind to make the mouse move? With keyboard input, animation, dragging with the mouse? I would say that you can move the mouse with any of these means.

[cruxblack]

If ur gonna move the mouse (ur application mouse) using the mouse (the computer mouse that is) u can use the MouseListener and MouseMotionListener, though further details are available in the tutorials

But if ur gonna use keyboard, well, i was about to ask the same thing too, how do u capture keyboard inputs actually?:confused:
What listener to use? an example would be great :)

[hardwired]

See How to Use Key Bindings
and How to Use the Focus Subsystem for more information.

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.Ellipse2D;
import javax.swing.*;

public class MouseKeyMotion extends JPanel {
    Ellipse2D.Double ball = new Ellipse2D.Double(200,200,40,40);
    double dx = 3.0;
    double dy = 3.0;

    public MouseKeyMotion() {
        registerKeys();
        setFocusable(true);
    }

    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        g2.setPaint(Color.red);
        g2.fill(ball);
    }

    private void registerKeys() {
        int c = JComponent.WHEN_IN_FOCUSED_WINDOW;
        getInputMap(c).put(KeyStroke.getKeyStroke("UP"), "UP");
        getActionMap().put("UP", upAction);
        getInputMap(c).put(KeyStroke.getKeyStroke("LEFT"), "LEFT");
        getActionMap().put("LEFT", leftAction);
        getInputMap(c).put(KeyStroke.getKeyStroke("DOWN"), "DOWN");
        getActionMap().put("DOWN", downAction);
        getInputMap(c).put(KeyStroke.getKeyStroke("RIGHT"), "RIGHT");
        getActionMap().put("RIGHT", rightAction);
        getInputMap(c).put(KeyStroke.getKeyStroke("ESCAPE"), "ESCAPE");
        getActionMap().put("ESCAPE", escapeAction);
    }

    private void moveBall(int xInc, int yInc) {
        double x = ball.x + dx*xInc;
        double y = ball.y + dy*yInc;
        ball.setFrameFromDiagonal(x, y, x+ball.width, y+ball.height);
        repaint();
    }

    public static void main(String[] args) {
        JFrame f = new JFrame("Use arrow keys");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new MouseKeyMotion());
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }

    private Action upAction = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            moveBall(0,-1);
        }
    };

    private Action leftAction = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            moveBall(-1,0);
        }
    };

    private Action downAction = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            moveBall(0,1);
        }
    };

    private Action rightAction = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            moveBall(1,0);
        }
    };

    private Action escapeAction = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            System.exit(0);
        }
    };
}

[Don Quixote]

Yes, it was something like this that i had in mind... Thanks alot fellow... Now i just have to implement the code for the colision detection, cause i want to create a labyrinth, and the rat is suppose to chase the cheese...
Got the idea, well alone this time, i'll try to do it... if i have problems i'll post something...
Thanks