Sending a model through remote functions? ROBLOX - server

well hello there,
So I'll get right to the point..
Everyone knows that in Roblox you have a ReplicatedStorage (for Client and Server) and a ServerStorage (only for Server).
So I want to store all my assets in ServerStorage .. you know, since exploiters/hackers can't see the ServerStorage if they tried.
However my game has virtual worlds..meaning that the client sees different objects than the other clients at any given time, so I can't just load an object from a server scripts because then everyone will see it.
Heres the question: Can I perhaps set up a remote function that lets the Client invoke the Server, and then the Server returns a model object or its location or something like that? And can I then use the Client to load the model into the player's workspace?
^That way I can securely store my important game assets in the serverstorage

The answer to your question is "Yes, you can!"
First off, you're going to want to create a RemoteFunction in the ReplicatedStorage. Call this RemoteFunction, 'GetModel'
Now, we're going to set up a local script inside of the StarterPack. This local script should have the following code:
local RS = game:GetService("ReplicatedStorage")
local RF = RS:WaitForChild("GetModel")
local model = RF:InvokeServer("ModelName") -- This code can go anywhere you'd like it to go. 'ModelName' is the name of the model you want to get.
print(model.Name) -- This will print the model's name.
Alright, so we've setup our code to invoke the remotefunction. Now, let's make that RemoteFunction do something. We'll create a server script inside of ServerScriptService. Here's the code:
local RS = game:GetService("ReplicatedStorage")
local RF = RS:WaitForChild("GetModel")
RF.OnServerInvoke = function(player, modelName)
local model = game.ServerStorage:FindFirstChild(modelName)
if model == nil then
return nil
else
return model
end
end
Most of this is basic code, and from what you said in the question it seems you understand lua fine. Hope I helped you! :)

Related

How to get PlayerGUI from a Server Script?

I am working on an inventory system and and now i need to make it save, but when trying to save it prints this in the output
PlayerGui is not a valid member of Player "Players.RidhoMBLR"
local function save(player)
local invTable = {}
for i, v in pairs(player.PlayerGui.ScreenGui.Inventory.InvFrame:GetChildren()) do
if v:IsA("TextButton") then
table.insert(invTable, v)
end
end
dataStore:SetAsync(player.UserId, invTable)
end
players.PlayerRemoving:Connect(save)
While you are accessing the path to the PlayerGui correctly, it is probably not replicated to the server (ie, it's existence is only observable on the client in LocalScripts).
So you will likely need to use a LocalScript to pull all of the relevant information out of the UI, and communicate it up to the server using a RemoteEvent. So move your code to a LocalScript :
local players = game.Players
local saveEvent = game.ReplicatedStorage.RemoteEvent -- find your RemoteEvent here
local function save(player)
-- only tell the server about it if we are the one leaving
if player ~= players.LocalPlayer then
return
end
-- get information about the inventory
local inventory = player.PlayerGui.ScreenGui.Inventory.InvFrame:GetChildren()
local invTable = {}
for i, v in ipairs(intentory) do
if v:IsA("TextButton") then
-- grab the text out of each button
table.insert(invTable, v.Text)
end
end
-- tell the server about our inventory
saveEvent:FireServer(invTable)
end
players.PlayerRemoving:Connect(save)
Then in a server Script, listen for when clients fire the event and save their data then :
local saveEvent = game.ReplicatedStorage.RemoteEvent -- find that same RemoteEvent
-- listen for when players report that they are leaving
saveEvent.OnServerEvent:Connect(function(player, inventoryTable)
-- save their information
dataStore:SetAsync(player.UserId, inventoryTable)
end)
So basically you can't access a player's PlayerGui through the server. PlayerGui is replicated locally for each client, hence in order to interact with a Player's Gui I'd recommend using RemoteEvents. By using Remote events you'd be sending a signal to the client which can then by picked up by a LocalScript. On the local script you can then fire another RemoteEvent back to the server with a list of all the items which you can then SetAsync on the server.

Animation Script not working in ReplicatedStorager

I have a a Gun model that shows up on my screen using the code from https://www.youtube.com/watch?v=VDYtZxnz7FI&t=25s youtube video. But when I try to add animations to it the animations dont work. What I think is happening is that the script isnt loading in because its in Replicated Storage. I Know this because I tested a simple print command and it worked when the script was in the workspace but not in replicated storage. I cant move the model to the workspace because the code depends on it being in replicated storage. If anyone could help me that would be much abliged. Thank You! Im not new to the Roblox scene but im just starting as a Scripter, Either then a mesh modeler.[Picture of Explorer][1]
Here Is the code that puts the viewmodel on my screen
local cam = workspace.CurrentCamera
local run = game:GetService("RunService")
local reps = game:GetService("ReplicatedStorage")
local model = reps:WaitForChild("Henry Rifle"):Clone()
for i,v in pairs (model:GetChildren()) do
if v:IsA("BasePart") then
if v ~= model.PrimaryPart then
local weld = Instance.new("Weld")
weld.Part0 = model.PrimaryPart
weld.Part1 = v
weld.C0 = model.PrimaryPart.CFrame:inverse()
weld.C1 = v.CFrame:inverse()
weld.Name = v.Name
weld.Parent = model.PrimaryPart
end
end
end
model.Parent = cam
run.RenderStepped:connect(function()
model:SetPrimaryPartCFrame(cam.CFrame *CFrame.new(0,-1.5,1.5))
end)
Here is the simple code that start the animation when the game starts
(Used for Testing)
local player = game.Players.LocalPlayer
local controller = script.Parent.Humanoid
local inspect = controller:LoadAnimation(script.Parent.Inspect)
inspect.Looped = true
inspect:Play()
I'm pretty sure your script doesn't work because Roblox forces Filtering Enabled now.
Filtering Enabled (FE)
Difference with non FE and FE games
With FE, Changes made by the Client/Roblox Player is sent to the server, but the server will never replicate the changes made by the Client to others Clients in the same game server.
That video was made when FE was still an option. Roblox forces FE now, this is why your script doesn't work.
Only way for Client to replicate with others Clients, You must use Remotes.
Roblox wiki explains better than me FE and Remotes, so check it out: http://roblox.wikia.com/wiki/Replication_filtering

Siemens S7-1200. TRCV_С. Error code: 893A; Event ID 02:253A

Please, help to solve the problem with communication establishment between PC and 1211C (6ES7-211-1BD30-0XB0 Firmware: V 2.0.2). I feel that I've made a stupid mistake somewhere, but can't figure out where exactly it is.
So, I'm using function TRCV_С...
The configuration seems to be okay:
When i set the CONT=1, the connection establishes without any problems...
But, when i set EN_R=1, I'm getting "error 893A".
That's what I have in my diagnostic buffer: (DB9 - is a block where the received data is supposed to be written)
There is an explanation given for "893A" in the manuals: Parameter contains the number of a DB that is not loaded. In diag. buffer its also written that DB9 is not loaded. But in my case it is loaded! So what should I do in this case?
it seems that DB were created or edited manually due to which they are miss aligned with FB instances try removing and DB and FB instances and then add again instances of FBs with automatically created DBs and do a offline dowonload

Ros publisher not working with V-Rep after saving

I've started using V-Rep to simulate some robots (Pioneers and quadrotors, initially), but I've been having problems when I try to connect it with ROS. I tried to replicate the example from RosTopicPublisherAndSubscriber.ttt and it only works the first time, after I close it and load it again, it doesn't work anymore, my code is practically identical to the example, except that I use getPose and it's a Pioneer (the one that comes with V-Rep), here's my code:
if (simGetScriptExecutionCount()==0) then
-- Check if the required plugin is there (libv_repExtRos.so or libv_repExtRos.dylib):
local moduleName=0
local moduleVersion=0
local index=0
local pluginNotFound=true
while moduleName do
moduleName,moduleVersion=simGetModuleName(index)
if (moduleName=='Ros') then
pluginNotFound=false
end
index=index+1
end
if (pluginNotFound) then
simDisplayDialog('Error','ROS plugin was not found.&&nSimulation will not run properly',sim_dlgstyle_ok,false,nil,{0.8,0,0,0,0,0},{0.5,0,0,1,1,1})
else
-- Retrive the handle of the vision sensor we wish to stream:
lHandle=simGetObjectHandle('Pioneer_p3dx')
-- Now enable topic publishing and streaming of the vision sensor's data:
topicName=simExtROS_enablePublisher('p3dx',1,simros_strmcmd_get_object_pose,lHandle,0,'')
if (topicName == nil) then
simDisplayDialog('Error','Nil',sim_dlgstyle_ok,false,nil,{0.8,0,0,0,0,0},{0.5,0,0,1,1,1})
else
simDisplayDialog('Error','Not Nil',sim_dlgstyle_ok,false,nil,{0.8,0,0,0,0,0},{0.5,0,0,1,1,1})
end
-- Retrive the handle of the passive vision sensor. We will use the passive vision sensor
end
end
Any idea is welcome! Thanks in advance!
PS: Also, if anyone with 1500 reputation points could create the v-rep tag, that would be great!
Ok, the people at V-REP helped me solve it. So basically I should used the argument as -1 instead of 0.
So basically, a should have done this
topicName=simExtROS_enablePublisher('p3dx',1,simros_strmcmd_get_object_pose,lHandle,-1,'')
instead of
topicName=simExtROS_enablePublisher('p3dx',1,simros_strmcmd_get_object_pose,lHandle,0,'')

Managing Place Instances in Roblox

So, apparently Roblox now has a way to Teleport players between places.
That's great, but for the game I have in mind I need to have very fine-grained control over which players are let into which servers (or as Roblox seems to call them, "place instances"). How can I explicitly teleport a player or group of players to a new place instance with no other players in it?
You can find the relevant article on the wiki here
Here is an example code:
local AssetService = Game:GetService(“AssetService”)
local TeleportService = Game:GetService("TeleportService")
local NewPlaceName = "New place #: " .. math.random() * 100
local NewPlaceId = AssetService:CreatePlaceAsync(NewPlaceName , [ID of template] )
for i,Player in ipairs(Game.Players:GetPlayers()) do
TeleportService:Teleport(NewPlaceId , Player)
end
The code will make a new instance from an template with the id [ID of template] and then send all players in the current game to that instance.
You can get more control by using the DataStore (as seen in example)
Try making a Reserve Server. Reserve servers are generated to lock players out and hide the server, players can only join the server when the script you have made teleported them to the place it is running with the code it generated.
https://developer.roblox.com/api-reference/function/TeleportService/ReserveServer