Hey guys!

I wrote an article on the dot product. Hopefully it will help someone out.

http://xdpixel.com/dot-product-101/

and why is this not a Gamedev article too? It looks really nice, by the way.

Hey guys!

I wrote an article on the dot product. Hopefully it will help someone out.

http://xdpixel.com/dot-product-101/

The "Calculate the Length of a Vector Efficiently" section has a mismatch between the description and the 2nd code sample.

Description text wants enemy to fire if within (i.e. less than) 4 units from player.

Code sample outputs wanting to fire if distance is greater than 4 units from player.

Would expect/suggest description text to state "If the enemy is at least 4 units away from the player".

Edit: Clarified which code sample, as there are 2 in the section.

@Lactose, good catch! It has now been corrected!

@frob, fair enough.