Migrating from Mirror

https://github.com/vis2k/Mirror/

The bad news is that you will need to create your project from scratch, and can’t reuse anything from the MonoBehaviour world. DOTSNET intentionally uses pure ECS, not hybrid.

The good news is that DOTSNET was optimized for ease of use. It’s very clean, simple & elegant to work with. It’s extremely stable thanks to over 90% test coverage.

In fact, it makes networking fun again!

Here is a brief overview on how the old concepts translate to DOTSNET. Please take your time to learn each one, and don’t expect to convert your full Mirror project to DOTSNET by friday.

Mirror	DOTSNET
Server-Only mode	Still exists, but in a completely separate Server World.
Client-Only mode	Still exists, but in a completely separate Client World.
Host Mode	Not needed anymore. Server & Client worlds are fully separated in memory. Simply start a server and start a client. Yes, we have a true, fully memory separated host mode now.
NetworkServer	NetworkServerSystem + Authoring
NetworkClient	NetworkClientSystem + Authoring
NetworkIdentity	NetworkIdentity
NetworkBehaviour	Gone.
isServer	Not needed anymore. You are the server if your system is running in the server world.
isClient	Not needed anymore. You are the client if your system is running in the client world.
isLocalPlayer	NetworkEntity.owned
hasAuthority	NetworkEntity.owned
OnStartServer	OnStartRunning if [ServerWorld] and [UpdateInGroup(ServerActiveSimulationSystemGroup)]
OnStopServer	OnStopRunning if [ServerWorld] and [UpdateInGroup(ServerActiveSimulationSystemGroup)]
OnStartClient	OnStartRunning if [ClientWorld] and [UpdateInGroup(ClientConnectedSimulationSystemGroup)]
OnStopClient	OnStopRunning if [ClientWorld] and [UpdateInGroup(ClientConnectedSimulationSystemGroup)]
NetworkWriter	BitWriter
NetworkReader	BitReader
Connection.ready	ConnectionState.joinedWorld (on server)
NetworkServer.active	NetworkServerSystem.state == ACTIVE
NetworkClient.active	NetworkClientSystem.state != DISCONNECTED