This script allows you to draw circle's sectors and curves. It has no analogs (yet) in Marketplace.
So, why you should use my script?
It's faster than draw_line analog.
You can set up:
With little upgrade you'll can even texture your circles! Isn't that awesome?
Still not sure? Then download this demo, that demonstrates all possibilities of script:
https://drive.google.com/file/d/0B19TXbK-EhGrdWZPWFNiWE9vOXM/view?usp=sharing
and take a look at game, that I made, using this script:
http://gamejolt.com/games/arcade/circlenoid/32657/
End User Licence Agreement (EULA).