Co-Op Layer

2026-06-01 10:48:18 -07:00
parent 1f647dd5e1
commit e851d5f8e9
29 changed files with 667 additions and 20 deletions
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+using Unity.Collections;
+using Unity.Entities;
+
+namespace ProjectM.Simulation
+{
+    /// <summary>
+    /// Connection intent for the M4 LAN host/join flow. Lives in Simulation so both the server and
+    /// client worlds can read it. A UI (<c>ConnectionUI</c>) — or, in the editor, the auto-host system —
+    /// writes the desired <see cref="Mode"/> + endpoint and sets <see cref="Requested"/> true; the
+    /// per-world ConnectionControlSystem turns it into a netcode <c>NetworkStreamRequestListen</c> /
+    /// <c>NetworkStreamRequestConnect</c> and clears <see cref="Requested"/>. Direct IP/LAN only for now —
+    /// Unity Relay is deferred to a later pass. Created per-world as a singleton.
+    /// </summary>
+    public enum ConnectionMode : byte
+    {
+        None,
+        Host,
+        Join,
+    }
+
+    public struct ConnectionConfig : IComponentData
+    {
+        /// <summary>What to do with this world's network stream.</summary>
+        public ConnectionMode Mode;
+
+        /// <summary>Dotted IPv4 to connect to (Join). Ignored for Host (binds AnyIpv4).</summary>
+        public FixedString64Bytes Address;
+
+        /// <summary>Listen/connect port.</summary>
+        public ushort Port;
+
+        /// <summary>Set true to request the control system act on Mode this frame; it clears the flag.</summary>
+        public bool Requested;
+    }
+}
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+fileFormatVersion: 2
+guid: 85356726c8f524aebb6cc93336fa09dd
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+#if UNITY_EDITOR
+using Unity.Entities;
+using Unity.NetCode;
+
+namespace ProjectM.Simulation
+{
+    /// <summary>
+    /// EDITOR-ONLY dev convenience for the M4 LAN flow. With auto-connect disabled in <c>GameBootstrap</c>,
+    /// this seeds a <see cref="ConnectionConfig"/> in each world on its first update so entering Play "just
+    /// works" multi-client: the server world hosts on loopback and every client / thin-client world joins
+    /// it — reproducing the old single-key playflow but for N players. Runs once per world then disables
+    /// itself, and skips seeding if a <see cref="ConnectionConfig"/> already exists (e.g. set by
+    /// ConnectionUI). Does not exist in player builds.
+    /// </summary>
+    [WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation | WorldSystemFilterFlags.ClientSimulation | WorldSystemFilterFlags.ThinClientSimulation)]
+    public partial struct EditorAutoHostSystem : ISystem
+    {
+        public void OnUpdate(ref SystemState state)
+        {
+            state.Enabled = false; // run exactly once per world
+
+            if (SystemAPI.HasSingleton<ConnectionConfig>())
+                return;
+
+            const ushort port = 7979;
+            var cfg = state.WorldUnmanaged.IsServer()
+                ? new ConnectionConfig { Mode = ConnectionMode.Host, Address = "127.0.0.1", Port = port, Requested = true }
+                : new ConnectionConfig { Mode = ConnectionMode.Join, Address = "127.0.0.1", Port = port, Requested = true };
+
+            var e = state.EntityManager.CreateEntity();
+            state.EntityManager.AddComponentData(e, cfg);
+        }
+    }
+}
+#endif
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+fileFormatVersion: 2
+guid: 642fc5c4d71654becba10814a2d08e92