Factorio Forums

I am trying to figure out a general way to find the collision box for an entity on the map. Every entity has entity.bounding_box, but this is not the same as the collision box. For entities that are not rotated it looks like you can find the collision box by taking entity.prototype.collision_box and moving it to entity.pos, but from what I can tell this doesn't work for cliffs, because the prototype collision box for cliff doesn't contain orientation.

What is the general algorithm for finding the collision box of an entity?

" it looks like you can find the collision box by taking entity.prototype.collision_box and moving it to entity.pos" That's what entity.bounding_box does for you. So what exactly is the problem with using that?

Cliffs have unique name for every rotation.

That's what entity.bounding_box does for you.

Bilka, looks like you are right. I was confused and thought and collision and bounding box are two different things. Now I checked again with a few entities, and it looks like bounding_box is just collision_box from prototype plus position. Thanks.

Bilka wrote: Sat Jun 08, 2019 4:43 pm " it looks like you can find the collision box by taking entity.prototype.collision_box and moving it to entity.pos" That's what entity.bounding_box does for you. So what exactly is the problem with using that?

Bounding_box has no description whatsoever in the api doc btw... ;)
Might even be worth writing an additional comment in EntityPrototype.collision_box.

eradicator wrote: Sat Jun 08, 2019 5:51 pm Bounding_box has no description whatsoever in the api doc btw... ;)

Fixed :)