I'm having trouble with this code I am using to create a roulette wheel. The goal is to spin the wheel when I click the "SPIN!" button. I have done this by creating a for loop that should change the status of the wheel from true to false, which changes the orientation. This, when done fast enough, should create the illusion of movement.
THE PROBLEM I AM HAVING: is that my wheel is only repainting after the whole for loop is done, despite my placement of the repaint(). So, it only spins one tick.
Here is some sample code of my ActionListener:
public class spinListener implements ActionListener
{
RouletteWheel wheel;
int countEnd = (int)(Math.random()+25*2);
public spinListener(RouletteWheel w)
{
wheel = w;
}
public void actionPerformed(ActionEvent e)
{
for (int i = 0; i <countEnd; i++)
{
try
{
Thread.sleep(100);
if (wheel.getStatus() == true)
{
wheel.setStatus(false);
repaint();
}
if (wheel.getStatus() == false)
{
wheel.setStatus(true);
repaint();
}
}
catch (InterruptedException ex)
{
Logger.getLogger(WheelBuilder.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
UPDATE: I figured out the problem. Here are the changes I made for anyone having a similar problem.
public class spinListener implements ActionListener
{
Timer tm = new Timer(100, this);
int count = 0;
public void actionPerformed(ActionEvent e)
{
tm.start();
changeWheel();
}
public void changeWheel()
{
int countEnd = (int)(Math.random()+20*2);
if (count < countEnd)
{
wheel.setStatus(!wheel.getStatus());
repaint();
count++;
}
}
}
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…