KeyPress and KeyRelease debouncer for StarfallEx, to fix the hooks being run multiple times when the key was only hit once

fh_debouncer.lua

--@name Key debouncer
--@shared
local hook = hook
local hook_add = hook.add
local hook_remove = hook.remove
local hook_run = hook.run
local isFirstTimePredicted = isFirstTimePredicted
local string = string
local string_lower = string.lower
local string_sub = string.sub

local function patchHookname(hookname)
	hookname = string_lower(hookname)
	if
		hookname == 'keypress' or
		hookname == 'keyrelease' or
		string_sub(hookname, 1, 1) == '_'
	then
		hookname = '_'..hookname
	end
	return hookname
end
function hook.add(hookname, name, func)
	return hook_add(patchHookname(hookname), name, func)
end
function hook.remove(hookname, name)
	return hook_remove(patchHookname(hookname), name)
end
function hook.run(hookname, ...)
	return hook_run(patchHookname(hookname), ...)
end

hook_add('keypress', '', function(ply, key)
	if isFirstTimePredicted() then
		return hook_run('_keypress', ply, key)
	end
end)
hook_add('keyrelease', '', function(ply, key)
	if isFirstTimePredicted() then
		return hook_run('_keyrelease', ply, key)
	end
end)