Pressing the button

[Mikhail666999]

Hello, it's me again) This time I have a problem in how to make a reaction to a click?
in gdscript:
if Input.is_action_pressed("ui_accept"): #body pass

and in lua how?

[gilzoide]

Like described in From GDScript to Lua, Godot's singleton objects like Input are all readily available to Lua. The only change is that you need to use Lua's method notation with a : instead of .:

if Input:is_action_pressed("ui_accept") then
    -- do something
end

If in doubt, you can always use the Lua REPL bundled in the plugin to test out these syntax things.
It's located at the bottom tab of the editor.

Screen.Recording.2023-01-07.at.19.28.32.mov

[Mikhail666999]

Спасибо, я не думал, что в . и : есть такая разница
Thank you, I didn't think that in . and : there is such a difference)

[gilzoide]

Yeah, it does. This is something that Lua has different from most languages and may feel somewhat alien.
When you use only ., you only get the method object. That's why in the video you see a table: 0x... log: it's the MethodBindingByName table that will call the method by name in the passed object. (yeah, we should add a __tostring to it to get a nicer log like MethodBindByName<method_name>)

So, for using ., the way would be to pass Input to the method explicitly:

Input.is_action_pressed(Input, "ui_accept")
                     -- ^ here!

This is super annoying, so Lua devs added this syntax sugar where you use : to call the method passing the object as its first argument at the same time:

Input:is_action_pressed("ui_accept")

Both code snippets do exactly the same, as far as Lua is concerned. More info here: https://www.lua.org/manual/5.1/manual.html#2.5.8