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Nicole05
Nicole05 wrote ...

2021/6/19

How to addObject in constructor of an actor class

Nicole05 Nicole05

2021/6/19

#
I was wondering if it was possible to add an object to the world if the Building constructor has been called into a world. I would like to know if you can get the X and Y value of the Building in the world if it was called.
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private StatBar healthBar = new StatBar(100, currentHp, null, 100, 10,0, Color.GREEN, Color.RED, false, Color.WHITE, 1);
 
public Building(){       
    World world = getWorld();
    image = drawBuilding();
    setImage (image);
    world.addObject(healthBar, (Building.class).getX(), getY() - 50);
     
}
RcCookie RcCookie

2021/6/19

#
The problem is that when the object is created it is not in a world yet. So, it has to add itself to the world first, then it can add other objects. These information have to be passed into the constructor.
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public Building(World world, int x, int y) {
    world.addObject(this, x, y);
    world.addObject(healthBar, x, y - 50);
    // Some other stuff
}
By doing so you can also replace this
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Building building = new Building();
addObject(building, someX, someY);
with this
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new Building(this, someX, someY);
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