Hi thanks, but that's not quite what I was aiming for. I did have it similar to this at one point, but it's the opposite to what I'm aiming for.
The screen (the one that's spinning) should always have a straight selection box, while the actual sprite off-screen can have whatever angle selection as required.
Don't ask me how, but I did it! I was throwing random sines and cosines into the formulas and BAM! it worked! <img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile">
https://www.dropbox.com/s/lmie9krwnz0kt ... .capx?dl=0
Well, not random of course, it's based on this rule, but still I was quite surprised when I found the right combination or angles and expressions.