Allow touch or mouse\n Update to try to handle touch events or mouse events
Add in-circle detection
Detect whether clicks are actually in the target circle (not just on the quad)
Merge remote-tracking branch 'upstream/master'
Fixed circle detection
Slight tweak to fix the pixel-in-circle calculation so it looks pretty true to life
Merge pull request #2 from jrmccarthy/master

Touch support, better target hit tracking