Greenfoot

2017/6/2

Code for getting an object on the screen?

2017/6/2

What is the code for getting the only object of its kind on the screen? Similar to getOneObjectAtOffset but like anywhere on the screen.

danpost

2017/6/2

Alola_Sandslash wrote...

What is the code for getting the only object of its kind on the screen? Similar to getOneObjectAtOffset but like anywhere on the screen.

For in a World subclass, like from act method:

ActorClassName obj = (ActorClassName) getObjects(ActorClassName.class).get(0);

For in an Actor subclass, like from act method:

ActorClassName obj = (ActorClassName) getWorld().getObjects(ActorClassName.class).get(0);

If there is a possibility that that type of actor is not in the world, then the following check needs to be made first:

if (getObjects(ActorClassName.class).size() == 0)
// or
if ( ! getObjects(ActorClassName.class).isEmpty() )

to ensure that the list returned contains the actor.

2017/6/2

It cannot find the getObjects method...

danpost

2017/6/2

Alola_Sandslash wrote...

It cannot find the getObjects method...

Then, you are probably in an Actor subclass and need to use 'getWorld().getObjects...'.

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