Challenge 4: RPC call

Write a script that defines a ServerRpc method.

Challenge 4: ServerRpc Network Calls

Under an Authoritative Server architecture, clients cannot directly mutate game state. Actions are requested on the server by invoking methods decorated with [ServerRpc].

// Called on client, executed strictly on the server
[ServerRpc]
public void RequestFireServerRpc(Vector3 direction) {
    SpawnProjectileOnServer(direction);
}

Following Netcode naming conventions, these methods must end with the ServerRpc suffix.

Exercise ServerRpc method name test

Define a Start method. Inside, declare string rpcMetodu = "TakeDamageServerRpc"; and print "Tetiklenen RPC: " + rpcMetodu to the console.

Show example solution

using UnityEngine;

public class RpcMethodTester : MonoBehaviour
{
    void Start()
    {
        string rpcMetodu = "TakeDamageServerRpc";
        Debug.Log("Tetiklenen RPC: " + rpcMetodu);
    }
}

Exercise RPC client ID tracking

Define a Start method. Inside, declare int clientId = 1; and print "Istemci kimligi: " + clientId to the console.

Show example solution

using UnityEngine;

public class RpcClientTester : MonoBehaviour
{
    void Start()
    {
        int clientId = 1;
        Debug.Log("Istemci kimligi: " + clientId);
    }
}

Test yourself

Which RPC type allows a client to trigger an operation on the server in a Netcode architecture?
- ClientRpc
- StaticRpc
- ServerRpc
- BroadcastRpc
Show answer

ServerRpc — Remote procedure calls dispatched from a client to execute on the server are defined as ServerRpc.

Declare ServerRpc function

[____] public void SubmitScoreServerRpc(int score) {}

Show answer

[ServerRpc] public void SubmitScoreServerRpc(int score) {}

Multiplayer RPC concepts

ServerRpc

Method called on server from client
ClientRpc

Broadcasts from server to all clients
RPC

Remote procedure call mechanism
Authoritative Server

Server authoritative over game state

Next lesson: Challenge 5: Final synthesis

We Are Enhancing Your Experience

Cookie Preferences

Strictly Necessary Cookies

Analytical Cookies