I found out how to implement swipe gestures in construct 2(only 4 are shown) <img src="smileys/smiley1.gif" border="0" align="middle" />
Here's my example capx(Replace "(dot)" with "." and "(colon)" with ":")
P.S.:Just BTW, if you can understand the logic behind the capx then you could easily implement as many directions as you need.
-for 5 directions cut a circle in 5 parts and spread them out like I've done in the capx(you'll see what I mean)
-for 8 directions smaller 8 triangles etc..