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I have a question about creation of prototypes.
According to wiki we should use the data:extend method as preferred solution - I see small drawback in it for objects that have a lot of attributes.

Will I run into any trouble using the old assignment method with code like this: Using this way I can easily create nice group of objects/techs(for example few tech levels of similar items).
Only thing that would need to be added separately are the object names/descriptions for locale.

I think it still needs to go through data:extend, try making the last line

I tired it and it works without problems.

I'm simply not sure what might be the risks of it. The extend function is in lua in one of core files and it doesn't do anything special as far as I can tell.

Hm, yeah, the sanity checking for required attributes and stuff seems to happen either way, so not sure... At least it's shorter and less redundant since you can put a whole bunch of prototype definitions in a single call without needing to repeat the type and name for every single prototype.

Both end up doing the same thing so it's really up to how you want to do it.

I personally use the table.deepcopy function when creating modified versions of existing entities since it makes for cleaner code.

Rseding91 wrote:Both end up doing the same thing so it's really up to how you want to do it.

I personally use the table.deepcopy function when creating modified versions of existing entities since it makes for cleaner code.

Oh so there is a built-in function for that - I was using one from Lua wiki.
Official reference doesn't have it and I haven't found info about lua extensions we have here. Only found some of those (like serpent) by finding them in code of other mods.