Greenfoot

LightningFast

2020/1/10

#

I want to add an actor within the superclass constructor, but I don't know how to put it over an actor in my subclass.

danpost

2020/1/10

#

LightningFast wrote...

"put it over an actor"

Please elaborate. What do you mean by this?

danpost

2020/1/10

#

LightningFast wrote...

Can I make a World a suprclass of another World?

A World subclass can have a subclass of its own (a sub-subclass, if you will). It, in turn, can also be extended from, etc.

LightningFast

2020/1/10

#

I have a scrolling background in Level1World and I'm adding heart objects in the superclassWorld. I want to add life (heart objects) over the background objects because right now they're being covered. I don't know what to do.

danpost

2020/1/10

#

LightningFast wrote...

I have a scrolling background in Level1World and I'm adding heart objects in the superclassWorld. I want to add life (heart objects) over the background objects because right now they're being covered. I don't know what to do.

You can just use the setPaintOrder method in your World subclass constructor:

public Level1World()
{
    super(600, 400, 1);
    setPaintOrder(Heart.class);
    // etc.

LightningFast

2020/1/10

#

it works thank you!!!!!

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Can I make a World a superclass of another World?