// schroll the map using mouse
@Override
public void mouseDragged(MouseEvent e) {
Point dragged = e.getPoint();
int x = dragged.x - pressed.x;
int y = dragged.y - pressed.y;
if (y > 0) {
panel.decreaseScrollY();
}
if (y < 0) {
panel.increaseScrollY();
}
if (x > 0) {
panel.decreaseScrollX();
}
if (x < 0) {
panel.increaseScrollX();
}
panel.repaint();
}
