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No. The array is a set of values that give transform weight to the color of each pixel within a small area of your image. The matrix is used for each pixel within the image. As a test you could do something simple, like the following: <Code Omitted>Test it with 'i<1' in line 2 to start. Then increase the '1' to '2' and then to

You can see for yourself: mirrorVertically

I usually use a 'vSpeed' or 'ySpeed' field for the vertical speed of the actors. This value is then used when moving the actor vertically: <Code Omitted>Gravity is a constant force that always adds to the vertical speed of the actor, which slows down the actor when rising and speeds it up when falling. So, adding a constant value to 'vSpeed' every act cycle will effectively add a gravitational-like force to the actor. Any time a "solid" object stops the actor from moving vertically, the value of 'vSpeed' should be zeroed. If this happens while the 'vSpe

Thank you, that solved it for me :)

Thank you very much, it is solved now :)

See the information on getting technical support. Amongst other questions you'll need to answer are Greenfoot version, operating system and version, contents of debug log.

Experiment with it.

The Gunner class is an extension of the Attacker class. Every object from any class that extends the Attacker class will get their own instance of any non-private, non-static field declared in the Attacker class. They even get the private ones; but do not have direct access to those fields.

This can (also) use some assistance.

You practically stated exactly what the code would say. You may need to add another condition so that you do not repeatedly add objects while the score sets at that value.

thank you

Create an actor for the button. Have the world create and add a button to itself.

Hey! In this case you have to work with Non-Greenfoot-Classes (AlphaComposite, Graphics2D and Rectangle). You can use this: (I also added a 'reset'-method in case you want to be able to reset the black screen)