@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D graphics = (Graphics2D) g;
graphics.setPaint(Color.GREEN);
Ellipse2D.Double circle =
new Ellipse2D.Double(ball.getX(), ball.getY(), ball.getDiameter(), ball.getDiameter());
// graphics.fillOval(ball.getX(), ball.getY(), ball.getDiameter(), ball.getDiameter());
graphics.fill(circle);
if (frame.getWidth() != frameWidth || frame.getHeight() != frameHeight) {
repaint();
updateSizes(frame.getWidth(), frame.getHeight());
}
try {
Thread.sleep(7);
} catch (InterruptedException e) {
}
if (begin && !grabBall) {
moveBall();
} else if (grabBall) {
followMouse();
}
}
public void updateSizes(int width, int height) {
frameWidth = width;
frameHeight = height;
ball.setX((frameWidth - ball.getDiameter()) / 2);
ball.setY((frameHeight - ball.getDiameter()) / 2);
// System.out.println(this.getWidth() +" " + this.getHeight());
this.setSize(frameWidth, frameHeight);
}
public void followMouse() {
if (draggedMouseX != -1 && draggedMouseY != -1) {
ball.setX(draggedMouseX - ball.getDiameter() / 2);
ball.setY(draggedMouseY - ball.getDiameter() / 2);
// System.out.println(draggedMouseX + " "+ draggedMouseY);
repaint();
}
}
public void moveBall() {
if (moveRight == true) {
if (ball.getX() < frameWidth - ball.getDiameter()) {
ball.setX(ball.getX() + 1);
if (moveDown == true) {
if (ball.getY() < this.getWidth() - ball.getDiameter()) {
ball.setY(ball.getY() + 1);
} else {
moveDown = false;
}
} else {
if (ball.getY() >= 0) {
ball.setY(ball.getY() - 1);
} else {
moveDown = true;
}
}
} else {
moveRight = false;
}
} else {
if (ball.getX() >= 0) {
ball.setX(ball.getX() - 1);
if (moveDown == true) {
if (ball.getY() < this.getWidth() - ball.getDiameter()) {
ball.setY(ball.getY() + 1);
} else {
moveDown = false;
}
} else {
if (ball.getY() >= 0) {
ball.setY(ball.getY() - 1);
} else {
moveDown = true;
}
}
} else {
moveRight = true;
}
}
repaint();
}
