Lesson 8: Networking

Synchronize objects across multiple users with @synced and @networked.

Concept: @synced, @networked

@manifest {
  title: "Multiplayer Sandbox"
  maxPlayers: 8
}

orb "SharedBall" {
  color: "yellow"
  scale: 0.3
  position: [0, 1, -2]

  @synced {
    properties: ["position", "rotation", "color"]
    authority: "owner"       # only the owner can move it
    interpolation: "linear"  # smooth movement for other players
  }

  @grabbable
  @physics { mass: 0.5 }
}

Sync strategies

Strategy	Use case
"owner"	One player controls, others watch
"last"	Last writer wins
"server"	Server-authoritative (anti-cheat)

Try it:

orb "SharedCube" {
  color: "magenta"
  @synced { properties: ["color"] authority: "last" }
  logic "colorSync" {
    on_click: () => {
      this.color = this.color === "magenta" ? "cyan" : "magenta"
    }
  }
}

Your turn:

Add @networked to the SharedCube to enable WebRTC peer-to-peer connectivity.

[Check Answer] [Hint] [Skip]

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Next: Lesson 9 – Accessibility