Discussions

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.

Your right!! Thank you very much! It was easier that i think it.

When you want to do something when some other condition is true, you use an 'if' statement: <Code Omitted> You need to replace the 'condition' and 'do_something' with suitable code. You need to put the "if" statement in your act method, or in some method that your act method calls, so that it continuously checks the condition.

Unless you publish the source code, it would be difficult to help with this issue.

Thank you

Disregard danpost, Dr. Blythe is my professor and was talking to me.

The best way is to add an instance boolean field to the class, similar to how firing was described at the bottom of this discussion page. You will, however, need to use a combination of checks (one for each key):

Thanks I will check those out. Dividing the objects into parts is a great idea and definately something I will use for simple pictures. For more complex pictures its too much work I think..

No - it returns the world that the actor is in, which isn't necessarily the active world. If the actor is not in any world, it returns null (even if there is an active world).

It is often not good to fix these 'non-static variable from static context' errors with making it static. But there are useful moments when to use it. :) Updated Insect Wars and the Bomberman game lately. Right now, I am not working on anything. Sometimes I have an idea and then, I try to add it. ;)