How much space does Thing_Spawn need?

[Nevander]

Is there some kind of buffer space requirement for Thing_Spawn/Thing_SpawnFacing?

I have this spot in my map where Barons are supposed to spawn in a pit that is made by the floor and ceiling being lowered down first. There is plenty of space from the floor to the ceiling (192 to be exact) and the sectors themselves are 64x64 large. That is plenty of room to spawn a Baron in but the spawn keeps failing.

The Barons themselves have a radius of 26 (which is total width of 52, leaving a buffer space of 12 units) and a height of 98. That actor can fit into a 64x64x192 space, but the spawn fails.

Can someone explain why the spawning fails with these dimensions because I expect it to succeed.

[jdagenet]

I don't think there is any kind of limitation like that, and if there is that's just stupid.

Try spawning the Baron using SpawnForced. If it still doesn't spawn then make sure your map spot actually exists in the map, that is, isn't being filtered out by wrongly passed skill flags.

[Graf Zahl]

Hard to say without the map...

[Nevander]

I found out the problem, I did a noob thing and used MapSpot instead of MapSpot (gravity). I still would like to know if that function requires any extra space or not, I suppose I can test it using the exact monster size and spawn them in a sector that exact size.

[Kappes Buur]

https://www.doomworld.com/idgames/docs/editing/metrics
I would imagine that this applies to sourceports as well.