Overload `hook.Add`'s `eventName` with events defined in the wiki

[b0mbie]

I don't know how much this is needed, but I think that having this would be a huge help while programming.

The page for hook.Add describes eventName like this:

The event to hook on to. This can be any GM hook, gameevent after using gameevent.Listen, or custom hook run with hook.Call or hook.Run.

LuaLS allows to specify a string as its own separate type.

So, if we take the GM:Move hook as an example, the hook.Add function can have an overload like:

--- @overload fun(eventName: "Move", identifier: any, func: fun(ply: Player, mv: CMoveData): boolean?)

... which will then allow for this to happen:


ply and mv will also be of the right types already, though LuaLS will complain if nothing is returned here, which may not be wanted if, for example, the programmer wants to just inspect ply and/or mv.
This can be accounted for by having the return type be optional here (boolean?).

Custom hooks should not be affected, as LuaLS will just use the original definition of the function, where eventName is string and func is simply function.

Adding GM hooks would be okay, but there's also the hooks described on the page for gameevent, which would require more special treatment.

[luttje]

This would be super useful I imagine!

We already track all these GM functions and their parameters and return types, so we could use that in creating an overload list to place above hook.Add.

You're on a roll finding great usability improvements. Thanks!