What is happening right now?

Thank you, now it works

First, you should understand that the rotation is already being held in the Actor class, meaning you do not need to declare another field for it. You could use something like the following: <Code Omitted> It is not really clear by your code as to exactly what you are trying to achieve with the turn methods Obviously, you want the crab to turn sharp at an edge, which can simply be accomplished with: <Code Omitted>The turnCrab method is totally unclear. There is no code shown where the value of one is turned back to false. And line 15 seems a bit strange as it appears the turn will only occur when the rotation is not horizontal (exactly left or right) and the turn must only occur along a distinct diagonal line going 45 degrees downward starting just below the top-left corner of the scenario window. I doubt very much that this is what you were going for.