How can I make an auto fill in text box like this
1 Like
You could use string.find() to filter through the playerlist.
This is similar to what you might need:
function autofill(text)
for i,v in pairs(game.Players:GetPlayers()) do
if string.find(v.Name, text) then
return v.Name
end
end
end
6 Likes
Make sure to use ipairs because it’s faster than pairs.
This is funny, because I’ve actually been learning about finding string similarity fairly recently. Here’s two functions:
local function LevenshteinDistance(original: string, target: string) : number
if original == target then return 0 end
if original:len() < target:len() then return self:LevenshteinDistance(target, original) end
if target:len() == 0 then return original:len() end -- original:len() >= target:len()
local previous_row = generateRange(target:len()+1)
for i, c1 in ipairs(original:split("")) do
local current_row = {i}
for j, c2 in ipairs(target:split("")) do
local insertions = previous_row[j+1] + 1 -- j+1 instead of j since previous_row and current_row are one character longer
local deletions = current_row[j] + 1 -- than target
local substitutions = previous_row[j] + if c1~=c2 then 1 else 0
insert(current_row, min(insertions, deletions, substitutions))
end
previous_row = current_row
end
return previous_row[#previous_row]
end
local function LevenshteinSimilarity(original: string, target: string) : number
return (max(original:len(), target:len())-self:LevenshteinDistance(original, target))/max(original:len(), target:len())
end
The LevenshtienDistance function returns the amount of single-character edits that need to be made to the target string to transform it into the original string. The LevenshteinSimilarity function will return a number from 0 to 1 that will be a percentage of how much the two strings match.
Given this, you can loop through each player and compare their name the the current entered-in text in the textbox.
Edit:
You can also use these two functions for getting Jaro Distance. This is most likely preffered over levenshtien distance.
local function JaroSimilarity(original: string, target: string): number
local original_len = original:len()
local target_len = target:len()
if (original_len == 0 and target_len == 0) or (original == target) then return 1 end
local match_distance = (math.floor(math.max(original_len, target_len) / 2)) - 1
local original_matches = table.create(original_len, false)
local target_matches = table.create(target_len, false)
local matches = 0
local transpositions = 0
local min = math.min
local max = math.max
for i = 1, original_len do
local _start = max(1, i - match_distance)
local _end = min(i + match_distance + 1, target_len)
for j = _start, _end do
if target_matches[j] then
continue end
if original:sub(i, i) ~= target:sub(j, j) then
continue end
original_matches[i] = true
target_matches[j] = true
matches += 1
break
end
end
if matches == 0 then
return 0
end
local k = 1
for i = 1, original_len do
if not original_matches[i] then continue end
while target_matches[k] == false do
k += 1
end
if original:sub(i, i) ~= target:sub(k, k) then
transpositions += 1
end
k += 1
end
local similarity = ((matches / original_len) + (matches / target_len) + ((matches - transpositions / 2) / matches)) / 3
return similarity
end
local function JaroDistance(original: string, target: string): number
return 1 - JaroSimilarity(original, target)
end
I’d be willing to bet that unless you’re working with tables with thousands of entries the difference is negligible but it’s still a good habit to get into, yes.
local textbox = script.Parent
function autofill(text)
local matches = {}
local players = game.Players:GetPlayers()
for i, player in ipairs(players) do
if string.match(player.Name, "^"..textbox.Text) then
table.insert(matches, string.match(player.Name, "^"..textbox.Text))
end
if i == #players then
if #matches == 1 then
return matches[1]
end
end
end
end
Slight extension with string.match() & only providing 1 match, if multiple players are found then nothing is returned.
Thank you, how can I add like the gray text behind? like this 
Also I noticed that when I press Enter it doesn’t auto fill it
This happened because you had 12 matches as opposed to the expected 1 so nil was returned which you then attempted to assign to the “Text” property of the “InviteToParty” instance.
local textbox = script.Parent
function autofill(text)
local matches = {}
local players = game.Players:GetPlayers()
for i, player in ipairs(players) do
if string.match(player.Name, "^"..textbox.Text) then
table.insert(matches, string.match(player.Name, "^"..textbox.Text))
end
end
return matches[1]
end
This will return the first match found.
local textbox = script.Parent
function autofill(text)
local matches = {}
local players = game.Players:GetPlayers()
for i, player in ipairs(players) do
if string.match(player.Name, "^"..textbox.Text) then
table.insert(matches, string.match(player.Name, "^"..textbox.Text))
end
end
return table.concat(matches, ", ")
end
This will return all matches found concatenated into a single string separated by a comma followed by a whitespace.
Thank you, which method would be better to use? especially if a scenario appears where there’s two players with similar names e.g. “Player32132” and "Player3552