How do you get objects to randomly appear?
The DoctorProfessor is out.
DoctorProfessorYoshi wrote ...
2013/6/17
Randomly appearing objects
If you just want to add an object anywhere in the world you can use:
If you mean something else you'll have to specify your question.
addObject(new YourActor(), Greenfoot.getRandomNumber(getWidth()), Greenfoot.getRandomNumber(getHeight()));
What i really want is for objectS to appear at random at the edge of the screen at random times.
The DoctorProfessor is out!
// random chance to spawn
if (Greenfoot.getRandomNumber(100) == 1)
{
// random top edge location
int x = Greenfoot.getRandomNumber(getWidth());
// spawn
addObject(new ObjectS(), x, 0);
}It compiles, but nothing happens... I want the object to appear at the right hand side of the screen. I have coded it so that it disappears when it hits the edge so that could be causing the problem. Any advice?
The DoctorProfessor is out!
If you want the objects to appear at the right hand side you need to change the code danpost already gave you like this:
To fix the problem that the objects dissapear at the edge of the world you could either don't remove them at the right hand side or you can add the obejcts more left so that they don't get removed (instead of getWidth() - 1 use getWidth() - 25 or even more).
if (Greenfoot.getRandomNumber(100) == 0)
{
addObject(new ObjectS(), getWidth() - 1, Greenfoot.getRandomNumber(getHeight()));
} still nothing. I even removed the code that makes the meteors appear!
The DoctorProfessor is out!
Where did you put this code?
If you put it in an act method of an actor that is not in the world or in a different world class it'll not work.
Also if you don't call this method or this peace of code in any act method.
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