Discussions

You should at least already have your World class set up with at least one actor class for the music keyboard keys. You could also have actors for the choices of time durations of the keys; however, I think it might be easier to use mouse and keyboard input combination for adjusting the time of a note. This can be achieved by having the staff notes as actors. The staff and measure separators may come in handy as actors also. What do you currently have, as far as the above is concerned?

You can also go ahead and let the actor move(1) and then check for the other one using 'getOneIntersectingActor' (returning an Actor object or 'null') or 'getIntersectingObjects' (returning a List object). If the one is not 'null' or the other is not empty, just execute move(-1), which then has a move sum equivalent to move(0) (if all done in the same block of code).

If you added an intermediate class between World and them, you could move the healthbar field and methods to it and have access to them from all your sub-level classes.

You need to first create a class for the enemy tank. Then write methods for it to shoot and follow your tank. Attempt something, then post the code you attempted and explain the problem

Please do not just ask for code. Try something -- anything. We will try to help fix any code you are having problems with, but there should be at least an attempt shown and the problem code should be posted. Are you new to Java also? and to programming in general? What have you been taught so far (basically)?

oh yeeeaaahhhhhhhhhh i got it thx thx :) p.s. what can i use 'follow' instead?

Thanks for the help!

At line 84 of the Ufo class, you are creating a new Counter object whose values are initialized to their default states. It in no way reflects or has any connection to the Counter object that you have already created and is tracking your levels.

Ty for your help danpost! :)

Thank you for your help danpost. It worked!

There are most probably many ways to make what you have already more efficient; however, that is something you can learn and deal with at some later time. For now, let us work on the checking to see if a three-in-a-row has been scored. There are only 8 ways to score a three-in-a-row; so I cannot see where you would need 16 'if' statements (actually, they can all be combined into a single 'if' statement). Just as an example, not necessarily for you to use directly:

First, the 'size' method of the List class does not take any parameters (the round brackets should remain empty when 'size' is called). Second, you cannot just call 'size' -- it needs a List object to be called on (the List object you want the size of). If you had a List object in a variable called 'list', then you could write 'int listSize = list.size();'. Finally, in your example, 'if(size(0)) { true }', if you wanted to know if a list was empty (which would have a size of zero), then you can use the List object method 'isEmpty()', which returns a boolean (true/false) value. Now, ther

@davmac, good catch (things like that are difficult to spot, especially if you are not looking for it specifically). I should try to remember to look for things like that in the code of others.