I have a KeyListener that works, but when I try to call a method such as getdx(), I'm not seeing any change. goal is to make a map move with arrows.
I've searched google and stackoverflow in various places, chopped my code all up and it's now pretty messy. what am I doing wrong?
public class GuiPanel extends JPanel implements ActionListener
{
private static final long serialVersionUID = 1L;
private Timer timer;
private DrawMap drawmap = new DrawMap();
private DrawChar drawchar = new DrawChar();
KeyBoard keyboard = new KeyBoard();
boolean change = false;
public GuiPanel()
{
KeyListener listener = new KeyBoard();
addKeyListener(listener);
initGuiPanel();
}
private void initGuiPanel()
{
setFocusable(true);
setBackground(Color.BLACK);
setDoubleBuffered(true);
timer = new Timer(1000, this);
timer.start();
new GameLogic ("gamelogic").start();
}
@Override
public void paintComponent(Graphics g)
{
super.paintComponent(g);
draw(g);
Toolkit.getDefaultToolkit().sync();
}
private void draw(Graphics g)
{
Graphics2D g2d = (Graphics2D) g;
drawmap.drawmap(g2d);
drawchar.drawchar(g2d);
}
@Override
public void actionPerformed(ActionEvent e)
{
keyboard.getdx();
keyboard.getdy();
drawmap.move(keyboard.getdx(),keyboard.getdy());
repaint();
}
}
public class KeyBoard extends KeyAdapter
{
private int dx;
private int dy;
private int angle=1;
private boolean change = false;
KeyBoardLogic keyboardlogic = new KeyBoardLogic();
public int getdx()//does not return proper value
{
return keyboardlogic.getdx();
}
public void keyPressed(KeyEvent e)
{
keyboardlogic.keypressed(e);
}
public void keyReleased(KeyEvent e)
{
keyboardlogic.keyreleased(e);
}
}
public class KeyBoardLogic
{
private int dx=0;
public int getdx()
{
return dx;
}
public void keypressed(KeyEvent e)
{
int key = e.getKeyCode();
if (key == KeyEvent.VK_LEFT)
{
dx = -1;//does not update when getdx() is called
System.out.println("left");//works
}
}
public void keyreleased(KeyEvent e)
{
int key = e.getKeyCode();
if (key == KeyEvent.VK_LEFT)
{
dx = -1;//just to know that something happened...
}
}
}
Got it. after a week of troubleshooting. dx and dy needed to be static. also a number of other coding errors masked the main problem.