Discussions

One major problem is that max is a new variable every act cycle and is always initially set to 5. Another issue with the current code is that as long as the number of Enemy object in the world is less than max, max will increase and always stay greater than the number of Enemy objects in the world. You can either add two Enemy object into the world at the same time or introduce a target field. However, maybe the best way is to override the removeObject method:

All possible values for the counter are exhaustd by line 8 -- that is, the 3rd if block will never by executed. You can just remove the "else" from line 13, however, that code, as is, is a bit much. Try the following: <Code Omitted>Or, even shorter: <Code Omitted>

thank you that helped a ton

Oops, never mind. I found it after all. If you are encountering this, the solution is at: https://www.greenfoot.org/doc/faq#macos-keys

In order for an object to not pass through an object of any kind you, it needs to receive the equal to opposite amount of force. This would be placed in the same area that the movement code is for each direction possible (or you can use a boolean to switch the values to add a bounce affect if it's an AI/Enemy).

Remove the word "boolean" from line 7. You are inadvertently creating a new variable there (which is NOT that declared on line 1). By removing the type on line 7, it will then refer to the one declared on line 1. Replace line 13 with the following: <Code Omitted>No NullPointerException error can then be caught here.

Thank You for answering, I'll try that out. That should be, what I was looking for :)

I got it all fixed. I ended up using vectors and drawLine() to make it instead of scaling and rotating rectangles. Basically restarted from scratch. I did use the addedToWorld() method to draw the trunk.

Yea, sorry. I forgot to change it(line 3), I have this problem, and I was try to find, why the hek it doesn't work. And yes is that what I looking for, thank you so much. Now it works perfectly! :)

Yeee, this exactly I was finding! Thank you so much :)

Oh, this is good one. This will help me a little :) But thanks! I will use this for now.

Okay, I got it. Thanks! :) It's now working all what I want to do. Thanks for helps!

Copy the Collision class into your project and let all classes which need to perform the checks extend this class.

OK I fixed it. Changed my code to this (the part that fixed it was taking the GreenfootImage lines = ... and the setBackground(lines) out of the loop):

Move both lines (remove the "private" in the beginning) to between line 34 and 35.