[1.8.9] Check if a player is at the edge of a block?

[Darkwiiyou]

I didn't find anything specifically on this topic, so I decided to ask for assistance. I'm trying to test if a player is at the edge of a block, and I'm having issues doing so. Any help? I'm decently new to this, so an example/explanation would be amazing. Thanks!

 

~Darkwiiyou

Edited May 27, 2018 by Darkwiiyou

[jabelar]

I don't know off the top of my head, but best thing is to think if there is already a vanilla feature that does something similar. For example, since there is the feature that you can hold down shift and keep you from going over an edge there must be code there that would be useful.

 

Or, conversely you can look at the code that checks to see when the player should fall. That should also give you a clue.