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How do you connect multiple game stats into a main lobby?

Asked by

Bluejay20000 -11

4 years ago

Hey, so i was just wondering this to improve my stats of my game!

So ya'll know games like "tower battles" and "Tower Defense Simulator" right? if you do, then what i'm trying to figure out is how they connect the games of the teleport-er maps into the main lobby?

Lets say this as an example: A person plays a game in Tower Defense Simulator but there is no 1 in the lobby, and it shows 1 person is playing it. how do you connect that teleport-ed game to the lobby from the players?

I really need to understand this please, Thank you.

Links: Profile: https://web.roblox.com/users/202371881/profile Game: https://web.roblox.com/games/5149487599/NEW-GAMEMODE-TACTION Group: https://web.roblox.com/groups/6607132/BlueJ-Studios#!/about

If you cant understand what i mean, Sorry. It's a bit hard to explain. Bluejay20000 -11 — 4y

Title change: Get number of players in Roblox place User#30567 0 — 4y

1 answer

Answered by

User#30567 0

4 years ago

Edited 4 years ago

Using the official Roblox Api, you can get the number of players in several different places.

For example, if I wanted to check how many people were playing crossroads (place id 1818), I would go to the link https://www.roblox.com/games/getgameinstancesjson?placeId=1818&startindex=0. The text it shows is:


{
   "PlaceId":1818,
   "ShowShutdownAllButton":false,
   "Collection":[
      {
         "Capacity":8,
         "Ping":66,
         "Fps":59.974594,
         "ShowSlowGameMessage":false,
         "Guid":"8ad4c4b2-5c00-41f7-92f9-747b60382baa",
         "PlaceId":1818,
         "CurrentPlayers":[
            {
               "Id":0,
               "Username":"A Roblox Player",
               "Thumbnail":{
                  "AssetId":0,
                  "AssetHash":null,
                  "AssetTypeId":0,
                  "Url":"https://tr.rbxcdn.com/0f0a14eb846140dfc1f28870921b38d8/48/48/AvatarHeadshot/Png",
                  "IsFinal":true
               }
            },
            ...
         ],
         "UserCanJoin":true,
         "ShowShutdownButton":false,
         "JoinScript":"Roblox.GameLauncher.joinGameInstance(1818, \"8ad4c4b2-5c00-41f7-92f9-747b60382baa\")",
         "FriendsDescription":"",
         "FriendsMouseover":"",
         "PlayersCapacity":"7 of 8 players max"
      },
      ...
   ],
   "TotalCollectionSize":3
}

To go to the link with Roblox scripts, you can use

local HttpService = game:GetService("HttpService")
local PlaceId = 1818 -- Crossroads
local StartIndex = 0
local Link = string.format("https://www.rprxy.xyz/games/getgameinstancesjson?placeId=%s&startindex=%s", PlaceId, StartIndex)
local Data = HttpService:GetAsync(Link)
print(Data)

It will print the data in the output. But let's say that you want to turn it into a Lua table. You would, of course, use HttpService:JSONDecode. Let's add that to our script.

local HttpService = game:GetService("HttpService")
local PlaceId = 1818 -- Crossroads place id
local StartIndex = 0 -- Start at server #0
local Link = string.format("https://www.roblox.com/games/getgameinstancesjson?placeId=%s&startindex=%s", PlaceId, StartIndex) -- Set link with parameters
local Data = HttpService:GetAsync(Link) -- Get data from link
local DecodedData = HttpService:JSONDecode(Data) -- Decode the data
-- print(Data)

Count the number of people in the servers

local HttpService = game:GetService("HttpService")
local PlaceId = 1818 -- Crossroads place id
local StartIndex = 0 -- Start at server #0
local Link = string.format("https://www.roblox.com/games/getgameinstancesjson?placeId=%s&startindex=%s", PlaceId, StartIndex) -- Set link with parameters
local Data = HttpService:GetAsync(Link) -- Get data from link
local DecodedData = HttpService:JSONDecode(Data) -- Decode the data
local PlayerCount = 0
for Index, Server in pairs(DecodedData["Collection"]) do
    PlayerCount += #Server["CurrentPlayers"]
end

Notice this only returns the first ten servers. This problem can be easily solved by integrating a loop.

local HttpService = game:GetService("HttpService")
local PlaceId = 1818 -- Crossroads place id
local StartIndex = 0 -- Start at server #0
local Link = string.format("https://www.roblox.com/games/getgameinstancesjson?placeId=%s&startindex=%s", PlaceId, StartIndex) -- Set link with parameters
local Data = HttpService:GetAsync(Link) -- Get data from link
local DecodedData = HttpService:JSONDecode(Data) -- Decode the data

for Index, Server in pairs(DecodedData["Collection"]) do
    PlayerCount += #Server["CurrentPlayers"]
end

for NewStartIndex = 10, DecodedData["TotalCollectionSize"], 10 do
    Link = string.format("https://www.roblox.com/games/getgameinstancesjson?placeId=%s&startindex=%s", PlaceId, NewStartIndex)
    local NewData = HttpService:GetAsync(Link)
    local NewDecodedData = HttpService:JSONDecode(NewData)
    for Index, Server in pairs(NewDecodedData["Collection"]) do
        PlayerCount += #Server["CurrentPlayers"]
    end
end

print(PlayerCount)

Hope this works!

Another question, which script do i put in? I want it to teleport to another game without it leaving roblox, and where do i put the script in? Bluejay20000 -11 — 4y

See https://developer.roblox.com/en-us/articles/Teleporting-Between-Places User#30567 0 — 4y

How do you connect multiple game stats into a main lobby?

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