How do you make the crab give a certain sound after it turns more than 18 degrees?? It already moves when the left/right keys are pressed. What code do I add? PLEASE HELP!!!
public class Crab extends Actor
{
private GreenfootImage image1;
private GreenfootImage image2;
private int wormsEaten;
/**
* Create a crab and initialize its two images.
*/
public Crab()
{
image1 = new GreenfootImage("crab.png");
image2 = new GreenfootImage("crab2.png");
setImage(image1);
wormsEaten = 0;
}
/**
* Act - do whatever the crab wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
if (isAtEdge() )
{ turn(5);
}
checkKeypress();
move(5);
lookForWorm();
switchImage();
}
public void turnAtEdge()
{
if ( isAtEdge() )
{
turn(17);
}
}
public void randomTurn()
{
if (Greenfoot.getRandomNumber(100) > 90)
{
turn(Greenfoot.getRandomNumber(90)-45);
}
}
/**
* Alternate the crab's image between image1 and image2.
*/
public void switchImage()
{
if (getImage() == image1)
{
setImage(image2);
}
else
{
setImage(image1);
}
}
/**
* Check whether a control key on the keyboard has been pressed.
* If it has, react accordingly.
*/
public void checkKeypress()
{
if (Greenfoot.isKeyDown("left"))
{
turn(-4);
}
if (Greenfoot.isKeyDown("right"))
{
turn(4);
}
}
/**
* Check whether we have stumbled upon a worm.
* If we have, eat it. If not, do nothing. If we have
* eaten eight worms, we win.
*/
public void lookForWorm()
{
if ( isTouching(Worm.class) )
{
removeTouching(Worm.class);
Greenfoot.playSound("slurp.wav");
wormsEaten = wormsEaten + 1;
if (wormsEaten == 8)
{
Greenfoot.playSound("fanfare.wav");
Greenfoot.stop();
}
}
}
}
