Discussions

For help on your buttons, refer to this page of the java tutoriaals. Also, you can review the code that goes along with it.

Starting at the top: (1) Remove line 2 from both classes. It not a problem -- just not needed. The java.lang.* package is always automatically included in your projects. (2) Line 8 in Crab class should not be made static. crabHealth is (or is something that would be) specific to each instance of Crab (or, to each crab actor). In general, a class describes an object, its states (property values) in fields and its behavior (actions) in methods. The static modifier is used for other functions and class/global state properties. (3) Lines 9 a

Oops.. must have missed that method. Thanks anyways!

hey danpost, thanks a lot for the helping and suggesting me now it's not lagging anymore i think the problem was with the draw Oval, fill oval, setColor(rand color) when i changed it to a static image of the shield then it was not lagging anymore

Please refer to this page of the Java tutorials.

Oftentimes, the inclusion of static fields (class variables) in your MyWorld class is sufficient to allow the game to become more difficult from one world instance to the next. Some static final fields (class constants) can be used to describe the initial set-up of a "level". One static field (variable) would be used to track which level is current.

To actually implement the moving system, you need to save your speed from frame to frame:

An example is given in the first section of this page of the java tutorials.

The problem is that you have two (2) methods that could potentially remove the actor from the world, you call them unconditionally and they both require that the actor be in the world when called. You could use an if statement to place the condition of the second calling that the actor be in the world, as such: <Code Omitted>However, if you decide to rearrange things, it may cause issues again. Better, would be to start both methods, removeEnemy and hitByProjectile, with the following line:

That seems to have fixed the issue! Thank you so much danpost, you're an absolute lifesaver!

thank you so much, I am pretty new to this, so thanks

Use this setBackground method or this setBackground method.

Let me just point out a thing here. When an Object instance is created, it is created from the bottom up. All extending classes are built on their supers. So, when you create a body, the SmoothMover portion is created before the Body portion. Think of it as such that the Body object inherits pre-defined traits provided by the Smo

Thank you so much dan I got it

The one way that will most surely work is to use a smooth movement system on the actor so that you can use a "fractional" acceleration value. A slower than one acceleration will make your actor jump a bit higher, while doing so at a slower speed. See my GQActor Superclass Demo scenario for a demo (or download to look at or use). Adjust the gravity value, which is vertical acceleration, for the effect.