Generic util methods to calculate distances and determine if a point is within a region. <a href="https://gist.github.com/Loki386/2b57a6079fef3f907802" rel="nofollow">https://gist.github.com/Loki386/2b57a6079fef3f907802</a>
And a proximity trigger manager which allows you to pass in a token
name. If it finds a token by that name you can define the radius
(defaults to light_radius) and a callback to trigger. <a href="https://gist.github.com/Loki386/a9c72bcaa9e6b05f82" rel="nofollow">https://gist.github.com/Loki386/a9c72bcaa9e6b05f82</a>...