Get the normal vector between two shapes that are in contact.

This function returns the coordinates of a unit vector that points from the first shape to the second.
== Function ==
=== Synopsis ===
<source lang="lua">
nx, ny = Contact:getNormal( )
</source>
=== Arguments ===
None.
=== Returns ===
{{param|number|nx|The x component of the normal vector.}}
{{param|number|ny|The y component of the normal vector.}}
== See Also ==
* [[parent::Contact]]
[[Category:Functions]]
{{#set:Description=Get the normal vector between two shapes that are in contact.}}
{{#set:Since=000}}
== Other Languages ==
{{i18n|Contact:getNormal}}