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DOWNLOAD NETWORKVIEW FULL VERSION CODE

In Start(), we determine the computer's Local IP Address using Dns.GetHostEntry(Dns.GetHostName()) from. Now, in the JoinPlayer() RPC, we have this critical comparison: if(p.ipAddress=LocalAddress) which is removed when a player disconnects with something very similar in the DisconnectPlayer() RPC: players.Remove(player) This is done in the JoinPlayer() RPC with this simple command: players.Add(p,newPlayer) The player object must be created on all clients and the server, and this is the simplest way of accomplishing that.Īlso, notice that the server AND the client is maintaining the HashTable of all players. Notice that we are using RPCMode.All - which will send the JoinPlayer() RPC to all players and the server. In OnPlayerConnected(), we execute this RPC call to all connected clients using the server's world networkView. OK, let's look at the important parts, starting with our first RPC in OnPlayerConnected() networkView.RPC("JoinPlayer", RPCMode.All, newViewID, Vector3.zero, p) If you haven't done so already, grab the Unity package and open up the networkController script so you can follow along. I should probably mention that before we get too far into things and PFDs start flying all over the place. Did I mention that I <3 process flow diagrams. To help explain how this is accomplished, let's take a look at a process flow diagram.

Devising a way for clients to be able to distinguish between messages that are meant for them and messages that are meant for other players.

Managing the creating and destruction of player objects on all clients (from the server) as players join or disconnect.

Maintaining a dictionary between GameObjects and NetworkPlayer objects so that we can easily lookup one from the other.

Having just a single NetworkView over which RPCs can be sent means there are a few extra responsibilities we have to take on: A better option is to just use AllocateViewID() to get a unique object on the server even though our actual player object won't have their own unique network views. But if we did that, then we'd have to import at least another package - which isn't really worth it just for one function. NET's functions specifically designed for this task. Which would leave us with something like this:Īt the same time, we still want a way to guarantee a unique ID is assigned to each player. This will allow us to send RPCs back and forth between client and server without all the overhead and without all the unnecessary complexity. However, a single NetworkView component attached to an empty GameObject can be set to State Synchronization=OFF, and Observed=NONE. However, we're still going to need a single NetworkView because that's the only way Unity can communicate over the network (since we don't want to re-create the wheel and build our own Socket manager in.

We're not going to take the standard route. Using this setup, EACH player will have its own chatty NetworkView sending out information to everyone else more or less continuously. If you start digging through LOTS of other Unity Networking tutorials, they'll follow the "standard route" of adding a NetworkView to your player prefab and then relying on Unity to decide when to send updates, and how much data will be sent. Unity Networking Sample Using One NetworkView So, what does that leave us with? It leaves us with.

DOWNLOAD NETWORKVIEW FULL VERSION CODE

Update: I recently found a good way to do Server Discovery for the LAN, please post a comment if you'd like me to post that code as well :) I really wanted to do this as a true peer-to-peer, but Unity's built-in networking is geared strictly for client-server networking. And finally, RemoveRPCs (RPC = "Remote Procedure Call") only works when you are using Network.Instantiate, so it goes out the window as well. Network.Instantiate also generates so much network traffic that the game can pause and skip every time a new player joins. I picked these three because NetworkViews (even when set to "Unreliable") can create a lot of unnecessary network traffic if they are not managed very carefully. The components I decided to avoid were NetworkViews, Network.Instantiate, and RemoveRPCs. Avoid (as much as possible) the "exotic" Unity networking components.I set out to make a simple peer-to-peer FPS sample project with two goals in mind: Networking is definitely one of those parts. Unity is a great tool for Indie developers, but there are parts of it that can really make you spin around in circles. This Unity Package can be downloaded here (updated): fps_sample_2013_02_21.unitypackage