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don't mine your the best :D

Split horizontal movement from vertical movement. Determine direction along an axis to move before moving. Then apply the 3-step process of move, check for intersectors and move back if any found.

If you are to "highlight" all possible moves for the piece that is to move, it is by necessity that every possible square has its own object that can be clicked on. There are things you can do to help reduce the amount of code needed for that (loops and clever use of Maths, for examples).

I changed a part of it, so now it doesnt have to change worlds that often, it just adds actors, and it fixed it. thanks tho

This worked. Thank you.

Its value appears to BE zero from the start and does not appear to be adjusted to a positive health value anywhere. And if it is for boss health, why are you going to the world to impart damage (decrease health?)?

or perheaps full screen?

For left check, you are negating xDistance multiple times. In stopByLeftWall, you still need to add the half-widths together to get the proper x-offset. And why you use different y-offsets in the two getOneObjectAtOffset statements is beyond me.

Couple of this wrong with this. First, the addApple method would be in a World subclass where you cannot use the addedToWorld method. Secondly, if this was in another class other than Apple, you would be adding an apple instead of what type object this class creates (which is what would be wanted -- not an apple). The method given by Fabo0815 is a fine example of recursive method calling provided that a

Yes, i said that, thank you ;-)

alright, this really helps I completely understand just give me a try for that, anyway thanks for the advice! have a nice day

Thank you

thank you for your help :)