API: Add PrototypeFilter for type="signal"
Posted: Wed Oct 20, 2021 6:05 pm
TL;DR; Desire to filter / limit the signals presented by the "choose-elem-button" LuaGuiElement type.
Specifically in the case of implementing an extension to a constant combinator (e.g. https://mods.factorio.com/mod/LTN_Combinator_Modernized) the special signals (signal-each, signal-anything, signal-everything) don't make sense. The in game constant combinator has these signals filtered out in its "choose-elem-button" panel. In fact, if they are selected in a mod an applied to the underlying constant combinator entity it crashes the game. I'm working to trap for these selections in the mod, but ideally it would be best to not present invalid selections to begin with.
Crash report
Constant combinator: invalid signal in parameters: signal-anything
Vanilla Constant Combinator
LTN Combinator using a choose-elem-button type=signal
These signals were added to the "choose-elem-button" panel after a bug report in 0.18.24. via viewtopic.php?f=11&t=84877.
Specifically in the case of implementing an extension to a constant combinator (e.g. https://mods.factorio.com/mod/LTN_Combinator_Modernized) the special signals (signal-each, signal-anything, signal-everything) don't make sense. The in game constant combinator has these signals filtered out in its "choose-elem-button" panel. In fact, if they are selected in a mod an applied to the underlying constant combinator entity it crashes the game. I'm working to trap for these selections in the mod, but ideally it would be best to not present invalid selections to begin with.
Crash report
Constant combinator: invalid signal in parameters: signal-anything
Vanilla Constant Combinator
- const.png (346.9 KiB) Viewed 2085 times
- ltn.png (316.09 KiB) Viewed 2085 times
