Discussions

askgriff, if you're an educator you may like to consider signing up to the Greenroom and asking your question there.

Did you import the Animal class into your scenario? On the menubar, click on Edit>Import class..., choose Animal and click Import.

done it now but i might need a simpler method ;)

java.awt.color has been imported at the beginning of the class so java.awt.Color.BLUE is not necessary. I guess instantiated wasn't the proper term. I meant the variable color has been declared. I have tried to do that and I tried it again and thank you for mentioning that because yes that worked. I swear I tried that and it didn't work. I guess I needed another person telling me to try it again. Thanks danpost.

If what you are saying is to create a superclass for all the world levels with two methods in it (one for determining the level to advance to and the other to determine the level to reset), then, yes, that is one viable possibility. It is probably the appropriate one also; otherwise, you would have to write those two methods in all the world level classes. An alternate possibility is to create an array of the level world classes in the initial world. Pass the array from world to world. When not resetting the world but advancing to the next, remove the first item from the array before pas

If the sound file for the ambient sound is a very large sound file, that may have something to do with it; otherwise, I could not say.

For one thing, lines 22 is useless. You are setting 'img' to a new image; then two lines later setting 'img' to the image of the object that has been scaled, which eliminates the image created. What is causing the gray image is line 45, which scales the same image multiple times, which tends to distort the original image. I have also noticed that you have an excessive number of variables in the class. Compare the following with what you had:

The 'removeObject' method is being used (at line 14) to remove the 'pauseScreen' object that is created at line 4. This PauseScreen object has not yet been placed in the world so nothing is actually removed. The remove the one that is already in the world, change line 14 to <Code Omitted>(1) You can remove the 'answer' field totally (remove lines 10, 16 and 18; also, the 'answer' field declaration in this class; and change the method declaration to 'public void pause()' ). Use '!getWorld().getObjects(PauseScreen.class).isEmpty

didnt tried that, but click on edit, preferences and libraries and add your jar file to the list

thx for the answer. Could you post your todo list with your progress?

Save the world is a funktion of Greenfoot to save every actor that is in the world at the moment. All actors and there current location will be writen down in a method in the world subclass that is written by Greenfoot itselves. So you don't have to write anything and Greenfoot will do all the work for you. And then if you compile your scenario and create a new world the next time the actory you have saven will be at the position you saved them.

If you are asking about changing the background image of the world, the World class documentation of the Greenfoot API (accessed via the 'Documentation' link near the top of the page) has methods that deal with getting and setting the background image. The image is a GreenfootImage object, so you may want to see what methods are available in that class also (as well as its constructors).

Oh ok i see thank you

Just open code panel for the world class you want to remove 'undo' the 'save the world' in and delete the line 'prepare();' from the constructor and the complete method declared with 'public void prepare()'.