- ellipse boundary
- joystick
- curved bar
- https://forums.tigsource.com/index.php?topic=38883.0
- http://forum.unity3d.com/threads/need-to-draw-this-a-line-using-sprite.360073/
- http://www.gamasutra.com/blogs/AdamWinkels/20140220/211306/DevLog_7_Learning_How_to_Walk.php
git clone https://github.com/ericleoo/savagep
git pull origin master
git add .git commit -m "Your commit message"git push origin master