Greenfoot

2017/3/16

#

this is my code when my program ends

removeObjects(getObjects(A.class)); //this removes all actors from world
    GreenfootImage bg = getBackground(); 
    setBackground("Gameover.png");
    Greenfoot.stop(); //this stops the scenario

What code must I add so that the program will only end when an actor touches the bottom of the screen?

danpost

2017/3/16

#

The code given should be inside a 'gameOver' method. In the actor class (the one that ends the game when touches bottom of the screen), put in act method:

if (getY() == getWorld().getHeight()-1)
{
    ((Bg).getWorld()).gameOver();
    return;
}

rachpaguia@gmail.com

2017/3/16

#

Thank you! When I inserted this in my code though, line 3 is an error because ".getworld" method cannot be found

Super_Hippo

2017/3/16

#

Remove the dot (.) right in front of it.

rachpaguia@gmail.com

2017/3/16

#

Thank you! Is this how my gameover background's code will look like?

public class go extends World
{
     public void gameOver()
{
    {    
        setBackground("GO.png");
        GreenfootImage go = new GreenfootImage("GO.png");
        go.scale(getWidth() +1, getHeight() +1);
    }
}
}

danpost

2017/3/16

#

I am a bit confused, I thought (by the previous code) that you were using the same world (the 'Bg' world). Now, it looks like you are going to change worlds altogether -- but I have not seen any codes that would change worlds. The last code snippet is not quite right -- but it is not like it may not work at all. More information is needed to determine what your code should look like.

rachpaguia@gmail.com

2017/3/16

#

I'm sorry for the confusion but I was planning to switch backgrounds once an actor touches the bottom of the screen. The new background says something like "gameover" here is my code for my bg world

   public void gameOver()
{
    removeObjects(getObjects(A.class)); //this removes all actors from world
    GreenfootImage go = getBackground(); 
    setBackground("GO.png");
    Greenfoot.stop(); //this stops the scenario
}

here is my code for my go world

public class go extends World
{
     public void gameOver()
{
    {    
        setBackground("GO.png");
        GreenfootImage go = new GreenfootImage("GO.png");
        go.scale(getWidth() +1, getHeight() +1);
    }
}
}

danpost

2017/3/16

#

If you are switching backgrounds, then you do not need a 'go' world at all. Remove the 'go' class from your project (it should not compile as is, anyway). Change the 'gameOver' method to this:

public void gameOver()
{
    removeObjects(getObjects(Actor.class));
    setBackground("GO.png");
    Greenfoot.stop();
}

The 'if' statement I gave above, with the correction supplied by Hippo (thanx) along with this should be all you need.

rachpaguia@gmail.com

2017/3/16

#

Thank you! My problem is that my background isn't scaled to the screen of greenfoot. Will i be able to use this code to adjust?

bg.scale(getWidth() +35, getHeight() +30);

Super_Hippo

2017/3/16

#

Why do you want the background to be larger than the visible world?

danpost

2017/3/16

#

rachpaguia@gmail.com wrote...

My problem is that my background isn't scaled to the screen of greenfoot.

Then use this:

public void gameOver()
{
    removeObjects(getObjects(Actor.class));
    GreenfootImage bg = new GreenfootImage("GO.png");
    bg.scale(getWidth(), getHeight());
    setBackground(bg);
    Greenfoot.stop();
}

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