A question that someone is bound to know the answer to.

I'm working on a small map for a much larger adventure and I'd like to be able to block the players from passing through a doorway while allowing vision, kind of like blocking a door with a wall of force. Is there a way to do this? Thanks in advance.

Nope. Correction: There is one way to do it. Correction: There are two ways to do it. Set up dynamic lighting. Create a non-player-character, I call mine "Player Droppable Torch" and it looks like a torch. Give it vision and light-emission. Make it so all players can see it, and see through its 'eyes'. Put it on the other side of the door, window, or wall of force. Players will be able to see what it sees, but will be unable to pass through the door.

I'll give it a go. Thanks!

There actually is a very old API script that can be used for this from back before DL had movement blocking. <a href="https://wiki.roll20.net/Script:Collision_Detection" rel="nofollow">https://wiki.roll20.net/Script:Collision_Detection</a>

Does that Collision detection script still work today?&nbsp; I get how to add the light but how to you block the players?

I'm not sure about the collision script. In my example, you would use Dynamic Lighting to make the door. The torch allows you to see on the other side of the door, as if through a window, but you will not be able to move your token into the room due to the DL layer boundary.

There's no reason the collision script shouldn't work that I know of. The API sandbox still functions the same as it did back then, just with some new features.