Discussions

It's working perfectly thanks!!!

Wonderful! Just this little bit of code explains so much to me, I really love learning this... Thank you!

The one at line 23 should not do anything (it should always return false). You can remove that line. The one at line 9, on the other hand, is placed okay; however, it would be better placed between lines 8 and 9 in the act method code above.

Thank you very much I wanted to use the .size but didn't know it.

Ahh Thank you! I'm still learning these concepts and how exactly to implement them. It worked perfectly thank you! Now to work on how to reset the Dragon positions and remove remaining fireballs after the score is updated. Eep!

I said you could just switch the two lines. That would be so you can add the new Alien object into the world before loosing the reference to the world, which happens when you remove the current Alien object from the world. Just add two new Alien objects into the world before removing 'this'.

Apparently you have 'static' fields in other classes that will need to be initialized in the MyWorld class as well (to mention one, PortaltoPlanet.nextLevel).

Thanks, it works. <Code Omitted>

The error is probably not in the Body class, but rather in your World subclass where you try to create a Body object. You can add an import line for the Color class or change 'new Color(12, 12, 12)' to 'new java.awt.Color(12, 12, 12)'.

I would start by having two world constructors. The first one with no parameters would call the second one with an int parameter to indicate the number of squares along one side of the board. This second constructor should possibly create and set the background image and add the horse into the world. The act method could check for numeric keystrokes between 5 and 9 (perhaps) to recreate the world with a different size.

Remove all the 'else ...' from the animateDown method. You only need to make sure that if no down1...11 image is used (so coming from a different direction), you set one.

thanks very much danpost, it work out well, many many thanks danpost and super_hippo

Found it, thank you guys!

You might make use of my BgMusic class which is located in my BgMusic Actor Class Demo scenario. The class is designed to control the background music regardless of the active world. The use of the 'stopped' method is still required when the scenario changes from the running to the paused state (and the 'started' method when going the other way); but, no reference is needed to the BgMusic object because of the way the class was designed. All your World subclasses will need implementations of both the 'started' and 'stopped' methods if all