Chat all Script

--[[
Script created by: JhonXD2006 (My Roblox username :P)
Chat Commands:
1- play/name                    <- You write what someone else says with the name included.
2- play/text                    <- You only write what someone else says.
3- stop/chat                    <- You won't write anything.
4- give/<username> or me        <- The name you give will be written in the chat (It needs to be the complete username).
5- chat/<username> or all       <- Only one player chatted.
6- //break                      <- Break the script
7- play/hello
8- stop/hello

Warning: The script won't work in Void Script Builder (for the security of chat).
]]

local playerSpeaker = owner and owner.Name or "JhonXD2006"  -- ur name


--Comprobation if script already exist

if game:findFirstChildOfClass("StarterPlayer").Name ~= "StarterPlayer" then error("Cannot run the script here, please, try another game") end
local hasChat = game:GetService("ReplicatedStorage"):findFirstChild("GameHasChat")
if hasChat then
    if hasChat.Value == true then
        error("The game already has the script working")
    else
        hasChat.Value = true
    end
else
    local p = Instance.new("BoolValue", game:GetService("ReplicatedStorage"))
    p.Name = "GameHasChat"
    p.Value = true
end

--The entire script--

local Players = game:GetService("Players")
local playerHack = Players:findFirstChild(playerSpeaker)
local ChatService = require(game:GetService("ServerScriptService").ChatServiceRunner.ChatService)
local text = false
local name = false
local speakerExist
local hackerExist
local onePlayer = false
local onePlayerName
local welcome = false

ChatService:RegisterProcessCommandsFunction("BlahBlahNOT", function(speakerName, msg, channelName)
    if (text or name) and Players:findFirstChild(speakerName) ~= playerHack then
        return true
    end
    return false
end)

local forceDisabled = false


function Chat(plr, msg)
    local speaker = ChatService:GetSpeaker(plr.Name)
    if not speaker then
        return
    end
    speaker:SayMessage(msg, "All", {})
end

local function onChatted(player)
    if player.Name == playerSpeaker then
        speakerExist = true
    end
    if player == playerHack then
        hackerExist = true
    end
    player.Chatted:Connect(function(message)
        if speakerExist == true or hackerExist == true then
            if forceDisabled == false then -- Force Disabled Start
                if name == true and player ~= playerHack and onePlayer == false then
                    local m = message:sub(1)
                    Chat(playerHack, "["..player.Name.."]: "..m)
                elseif name == true and onePlayer == true then
                    if player == onePlayerName then
                        local m = message:sub(1)
                        Chat(playerHack, "["..player.Name.."]: "..m)
                    end
                end
                if text == true and player ~= playerHack and onePlayer == false then
                    local m = message:sub(1)
                    Chat(playerHack, m)
                elseif text == true and onePlayer == true then
                    if player == onePlayerName then
                        local m = message:sub(1)
                        Chat(playerHack, m)
                    end
                end
                if message:lower() == "stop/chat" and player.Name == playerSpeaker then
                    name = false
                    text = false
                    welcome = false
                end
                if message:lower() == "play/name" and player.Name == playerSpeaker then
                    name = true
                    text = false
                end
                if message:lower() == "play/text" and player.Name == playerSpeaker then
                    text = true
                    name = false
                end
                if message:sub(1,5) == "give/" and player.Name == playerSpeaker then
                    for i, v in pairs(game.Players:GetChildren()) do
                        if v.Name == message:sub(6) then
                            playerHack = v
                        end
                    end
                end
                if message:lower() == "give/me" and player.Name == playerSpeaker then
                    playerHack = game.Players:findFirstChild(playerSpeaker)
                end
                if message:sub(1,5) == "chat/" and player.Name == playerSpeaker then
                    for i, z in pairs(game.Players:GetChildren()) do
                        if z.Name == message:sub(6) then
                            onePlayer = true
                            onePlayerName = z
                        end
                    end
                end
                if message:lower() == "chat/all" and player.Name == playerSpeaker then
                    onePlayer = false
                end
                if message:lower() == "//break" and player.Name == playerSpeaker then
                    warn("The script is disabled and will no longer be usable.")
                    forceDisabled = true
                    hasChat.Value = false
                end
                if message:lower() == "play/hello" and player.Name == playerSpeaker then
                    welcome = true
                end
                if message:lower() == "stop/hello" and player.Name == playerSpeaker then
                    welcome = false
                end
            end -- Force Disabled end
        end
    end)
end

Players.PlayerAdded:Connect(function(player)
    onChatted(player)
    if welcome == true and forceDisabled == false and hackerExist == true then
        local welcomeMessage = "Hi, "..player.Name.."!"
        Chat(playerHack, welcomeMessage)
    end
end)
for i, v in pairs(Players:GetChildren()) do
    onChatted(v)
end

Players.PlayerRemoving:Connect(function(player)
    if player.Name == playerSpeaker then
        speakerExist = false
    end
    if player == playerHack and speakerExist == true then
        playerHack = game.Players:findFirstChild(playerSpeaker)
    elseif player == playerHack and speakerExist == false then
        hackerExist = false
    end
    if player == onePlayerName then
        onePlayer = false
    end
    if welcome == true and forceDisabled == false and hackerExist == true then
        local byeMessage = "Bye, "..player.Name.."!"
        Chat(playerHack, byeMessage)
    end
end)
-- lol