Greenfoot

rachpaguia@gmail.com

2017/3/16

#

this is my code when my program ends

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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:

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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?

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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

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   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

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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:

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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?

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

Super_Hippo

2017/3/16

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

danpost

2017/3/16

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rachpaguia@gmail.com wrote...

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

Then use this:

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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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