Discussions

Thanks for the reply davmac :) As for other programs claiming the gamepad, I'm not sure about that, I'm not playing any other games with the gamepad plugged in at the time... There may be some hidden prog

I tried with new scenario and scenarios from the Website Always the Same problem

where is scenario ?

Thanks JetLennit and danpost! You guys helped a lot!

It would help if you show what you have tried (use the 'code' link below the reply box for posting code). The code for the pieces might be important; how many pieces created (or moving) might help; any extra information regarding what you are trying to accomplish (in general) might also help.

If you want to keep score during the game, I have made a downloadable ScoreBoard class that you might find useful. You can find the class here: http://mrstewartslessons.com/useful_class_scoreboard.html Simply download the class into your Greenfoot project folder. Close Greenfoot and open it again and you'll see the ScoreBoard class among your actors. Open its code window and change 'Source Code' to 'Documentation' and you'll see directions as to how to use it in your actor's code. It has various constructors that allow

I have made a MoveRandomly class that you can include in your Greenfoot project that will cause another actor to move randomly. The code can be found here: http://mrstewartslessons.com/useful_class_moverandomly.html Simply download the java file into your greenfoot project. Close greenfoot and reopen the project, and you'll see the MoveRandomly class among your actors. Open the code window and change 'Source Code' to 'Documentation' and you'll see directions for including the object and its methods in your actor's co

I've created some useful classes that will do some of what you're looking for. Two of them in particular. The MoveRandomly class can be found here: http://mrstewartslessons.com/useful_class_moverandomly.html and the Projectile class can be found here: http://mrstewartslessons.com/useful_class_projectile.html To use them, download the files into your Greenfoot project's folder. Close the project and open it again and you'll see the classes list

<Code Omitted>The above line can be used in your Crab class to obtain a reference to the counter. After that line you can call any public method on 'counter' ( counter.methodName(parameters); ).

You might want to use the DriftMove class which I have created. It allows you to make an object drift on the screen and features a BounceAtEdge method that reflects at the angle that it hits the edge, just like a regular ball. It also allows you to set a random speed on spawning, and a number of other methods that might help. You can find it here: http://mrstewartslessons.com/useful_class_driftmove.html Select-click on the 'Download Class' and save it in your project folder. Close your project and open it again, and th

You do not need a separate class for each color of the ball. Just change the image of the one Ball actor to change its color. Use the 'setImage' method supplying the String name of the file to change the image to. If you want the ball to alternate between the two colors as it hits the paddle, then hold both images in instance fields and set the image of the ball to one of them in the Ball class constructor. Then, when the ball hits the paddle, use the 'if' condition 'getImage() == image1' to determine which image to set (on 'true' result, set image to 'image2' else set image to 'image1')

The only thing you have to distinguish between a right or left facing tank is the image; so that will be the condition to use to determine the direction of the bullet: <Code Omitted>Now, this code needs to be within an 'if' block whose condition determines that tank is firing: <Code Omitted>where you write a method to return a boolean value (true or false):

You can't call 'getWorld()' after you removed the object. You could add a line like 'if (getWorld != null)' in line 29 and 40.

All you need do is put something like the following in the act method of the Greep class for a greep to spit: <Code Omitted>You will probably want to put a condition on calling it, however, using an 'if' clause to regulate it.