Factorio Forums

According to the Lua Api for LuaEntityPrototype.collision_mask It should return an array of string.

Placing a rail (or any other entity that have a collision_mask) on the ground, put the mouse over it and run the following command : Expected result : It should print an array of string Instead it print a table of string->boolean

It's not possible to print:
That's actually:
Which, I can change it to that, but the reason I left it as name <> bool mapping is so you can index it to check if any value is in the list without needing to iterate the collection.

The printing was just to demonstrate that it wasn't really an array of string. I use it in script and was searching why things were not working when I use value to check for a mask to be present.

I'm not really asking to change the real definition of the collision_mask, I think just changing the API doc that it state that it is string->boolean should be enough to avoid confusion.