Rivet Developer Network•16mo ago

Separate game lobbies?

i am not very good with wording and english isn't my first language so ill do more than 1 example to make sure atleast someone understands. basically if i would have a lobby list of open world (or use the find for it) and wanted to make a find for instanced dungeons separated would it be possible? and would be possible to make the instanced dungeon find to only be activated authoratively (because i would not want to hackers for example to start a dungeon from anywhere in the map)? an short example would be: can i make "lobby find" authorative? (atleast certain ones) and make them filter out instanced dungeons (like separating gamemodes for example)? i know i could make a check if the player was allowed to be in the dungeon for example if it was started from somewhere strange but asking here just in case there is a easier way

10 Replies

Nathan•16mo ago

hey! nope, that request is totally reasonable. and your english is great :cool_doge: the easiest way is to use lobby rules to specify which dungeons are allowed. docs are here: https://arc.net/l/quote/rtyusope for example:

{
  "modules": {
    "lobbies": {
      "conig": {
        // Disable default lobbies
        "lobbies": {
          "enableFind": false, "enableFindOrCreate": false, "enableJoin": false
        },
        // Add rulse
        "lobbyRules": [
          { "tags": { "dungeon": "a" }, "config": { "enableFindOrCreate": true } },
          { "tags": { "dungeon": "b" }, "config": { "enableFindOrCreate": true } },
        ]
      }
    }
  }
}

{
  "modules": {
    "lobbies": {
      "conig": {
        // Disable default lobbies
        "lobbies": {
          "enableFind": false, "enableFindOrCreate": false, "enableJoin": false
        },
        // Add rulse
        "lobbyRules": [
          { "tags": { "dungeon": "a" }, "config": { "enableFindOrCreate": true } },
          { "tags": { "dungeon": "b" }, "config": { "enableFindOrCreate": true } },
        ]
      }
    }
  }
}

if you need something more complicated, you can also write your own backend module that runs server-authoritative logic (see https://opengb.dev/docs/build/overview). happy to provide more details as needed.

Quote from “Config - Open Game Backend”

Open Game Backend

Open Game Backend - Open Game Backend

Build your game's backend on open-source technology. Built to launch quickly, adapt to your game, and scale effortlessly. Supports Godot, Unity, Unreal Engine, HTML5, and Custom Engines.

Killuado 😴OP•16mo ago

so in the find i would use the tag correct? that seems easy enough for separate lobbies thanks!

Nathan•16mo ago

that's correct!

Killuado 😴OP•16mo ago

btw i still have to code a server-side check if the player is supposed to be in that dungeon right? for example if a hacker can run the "lobby.find" manually (idk if its possible tho just guessing), should i code that in the game server or as a OpenGB module?

Nathan•16mo ago

can you explain a bit more in what validation you need to do for the player? rivet has an automatic verification step which verifies that a user was placed in a dungeon using the token provided rom the lobby.find command.

Killuado 😴OP•16mo ago

for example, would it be possible to a hacker to use lobby.find from anywhere? if yes then i would need to validate for example if in the open world he was at the dungeon entrance location myself right?

Nathan•16mo ago

ah i see, yeah that would take some custom logic either on the game server or as a custom backend module how are you planning on identifying individual users? i take it their position will need to be stored somewhere

Killuado 😴OP•16mo ago

probably in the backend as would be easier to access in all servers but i didn't think in how exactly yet

Nathan•16mo ago

neat, sounds like you'll end up with some sort of "player state" module. happy to answer questions when you get to that stage.

Killuado 😴OP•16mo ago

ok, thank you!

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