Sammich System (for Decentraland)

A multiplayer game framework with procedural gameplay validation.

How to add game plane screen to your SDK game or scene in Decentraland

Requirement: Your scene should be SDK7, this component doesn't work with SDK6.

In the root folder of your SDK scene, execute npm install dcl-sammich-screen@latest

Then you can create an instance of the game with something like this:

import {createSammichScreen} from "dcl-sammich-screen";
import {getRealm, getSceneInformation} from "~system/Runtime";

export async function main() {
  const sammichScreenInstanceRoomId = JSON.parse((await getSceneInformation({})).metadataJson).scene.base;

  const rootEntity = engine.addEntity();
  const sammichScreen = await createSammichScreen(rootEntity, {
    position:Vector3.create(8,2,8),
    rotation:Quaternion.Zero(),
    scale: Vector3.create(3, 2, 1),
    defaultTextureSrc:"https://sammich.pro/images/spritesheet.png",
    baseInstructionVideoURL:"https://sammich.pro/instruction-videos",
    colyseusServerURL:"wss://sammich.pro/colyseus"
  },  sammichScreenInstanceRoomId);
  
  sammichScreen.onEvent(({type, data}) => {
      console.log("something happened");
      console.log("event type", type);
      console.log("event data", data);
      console.log("sammichScreen state", sammichScreen.getState())
  });
}

Game API docs

TBD: All the minigames has a new custom multiplayer SDK, documentation and implementation tool is pendent. meanwhile you can find example of using the sammich system game SDK here: https://github.com/sammich-dev/sammich-systems/blob/main/games/test-example.ts

Docker setup

on root folder docker compose up will build the images and put up the game server and the tournament server

Running outconained services

How to run colyseus server (local port 2567)

npm run ws

How to run tournaments (local port 2569)

npm run tournaments-web

How to run demo scene

npm run scene

How to run backoffice (local port 2569)

npm run backoffice