CODEWITHSUNDEEP
javarandomarraylistiteratorjavafx-2
user3700581
user3700581

Reputation: 3

Adding a several random numbers to graphics context above images

I am creating a old school game where the user has to collect the falling objects. Currently I have an image that is printed to the GraphicsContext several times accross the pane and is added and removed from an arrayList() when it disappears off of the screen. I can create a random number and I can print this to the same position as the falling image. However the random number is always the same and I want the number to be different on each of the objects. My code in my start method is as follows:

int i;
for(i=0;i<800; i+=90)

arrayList.add(new Object(ImageView, noOnImage, i,-10));

I then also have an update method where the objects are continously redrawn:

int newObject = 0;
Iterator<Object> objectIterator = object.iterator();
while(objectIterator.hasNext())
{
     Object ob = objectIterator.next();

    if(ob.move())
    {
        objectIterator.remove();
        newObject++;

    }                           
    gc.drawImage(ob.objectImage,ob.r.getX(), ob.r.getY(), ob.r.getWidth(),
        ob.r.getHeight());
    gc.fillText(String.valueOf(noOnImage), ob.r.getX()+8, ob.r.getY()+22);
}

noOneImage is just a randomly generated number that I declared at the top. I would like each object to contain a different random value, currently they are all the same though, even though it is random.

Upvotes: 0

Views: 39

Answers (1)

Josef E.
Josef E.

Reputation: 2219

When you create the object, pass in the random number within your loop.

Random rand = new Random()
arrayList.add(new Object(ImageView, noOnImage, i,-10, rand.nextInt(0, 10)));

That rand will give you a number between 0 and 10. You can put whatever int you want in there.

And make sure the object you create has the field and you are able to retrieve this number (e.g. for a score tally, etc.).

Upvotes: 1

Related Questions