forbi construction of signal rails

[Hermios]

Hi
I created some items of kind "signal rails", so they can only be built on rails.
I created too my own type of rails. Is there a possibility to restrict the build of my signal rails ton only my type of rails (This is red when the cursor is not on my type of rail, and asking for build doesn't work)?

Thanks

Niko

[matjojo]

using the api website: http://lua-api.factorio.com/0.14.21/Lua ... otype.html

you can see all(?) the entity tags you can give an entity.

you can try changing the collision box of your rails and your signals so that they go into each other like a puzzle?

maybe even add a new collision mask to the normal rails, and make your signals collide with it, and then not add it to your own rails? this sounds like the easiest and best working option to me.

keep us updated!

[Hermios]

Hey Matjojo
your idea seems very good.
However, how can I set a specific layer, only for rail and my signal? I don't want the rail to collide with something else. are the layers predefined, or I can add my own one?

Thanks

Niko

[matjojo]

yes, if I understand correctly you need to add a new collision_mask in the data-loading phase of startup. Look in the game files for where and how this is done, call it something like special-signal-denied, and make the base rails and your signals collide with it by adding it to the data.raw table in the prototype-loading phase(for the base rails, for your own signals you can just add it to the prototype defenitions).

[Hermios]

Hi Mate
sorry, I didn't find those layouts in the core nor the base. It seems that this is hardcoded, and I cannot add any further layout Do you have any experience from someone who did that?