i am adding sound to my object but when i compile and run greenfoot i get a runtime error. the sound file is working fine and in .wav format. how can i amend this problem?
public class Ball extends Actor
{
private int deltaX;
private int deltaY;
/**
* Create a ball with random movement
*/
{
deltaX = Greenfoot.getRandomNumber(11) - 5;
deltaY = Greenfoot.getRandomNumber(11) - 5;
}
/**
* Act, Move and Produce Smoke
*
*/
public void act()
{
makeSmoke(); // use this code to declare make smoke
move(); // use this code to declare your object to move
}
/**
* Move the ball. Then check whether we've hit a wall
*/
public void move()
{
setLocation (getX() + deltaX, getY() + deltaY);
checkWalls(); // use this code to check that the object has hit a wall
Greenfoot.playSound("breathe.wav");
}
/**
* Produce a puff of smoke
*/
public void makeSmoke()
{
getWorld().addObject ( new Smoke(), getX(), getY());
}
/**
* Check whether we've hit one of the walls. Reverse direction if necessary
*/
private void checkWalls()
{
if (getX() == 0 || getX() == getWorld().getWidth()-1) {
deltaX = - deltaX;
}
if (getY() == 0 || getY() == getWorld().getHeight()-1) {
deltaY = - deltaY;
}
}
}
