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I want to run code to modify the terrain wherever it gets nuked. I couldn't see any particular event that would be triggered on a nuke explosion. Currently I'm searching over the surface for 'nuclear-ground' tiles. This of course isn't particularly efficient on large maps.

Can you suggest a better way to get the location of a nuke explosion?

Like this mod does?
https://mods.factorio.com/mod/True-Nukes

Wow, that is way better than what I'd planned. Thank you for the link. I'll just use that mod, but I still want to dig in and see 'how' they did it!

starholme wrote: Sun Sep 18, 2022 1:42 am Can you suggest a better way to get the location of a nuke explosion?

You can add a scripted trigger effect to the action delivery of the nuke, which you listen for in the on_script_trigger_effect event, checking against the id of your scripted effect.

Yeah, the mod works pretty much entirely with script triggers, which are caught on line 340-416 here:
https://github.com/More-Wrong/Factorio- ... ontrol.lua
and are generated from here:
https://github.com/More-Wrong/Factorio- ... osions.lua
each entry specifying an array of TriggerEffects:
https://wiki.factorio.com/Types/TriggerEffect
and the actual scripting done from the entries.
I generate the TriggerEffects and use them in different weapons, and that is all pretty indirect now - it's much clearer how it works in the pre-0.3.x updates, so try looking at the 0.2.13 update, with the github commit:
https://github.com/More-Wrong/Factorio- ... kes_0.2.13
If you want to do it yourself, you can look at:
https://wiki.factorio.com/Prototype_definitions