Polishes

Assets/_Project/Tests/EditMode/RoomEnemyDirectorSystemTests.cs

@@ -82,6 +82,12 @@ namespace ProjectM.Tests
             return q.CalculateEntityCount();
         }
 
+        static void AdvanceTick(EntityManager em, uint tick)
+        {
+            using var q = em.CreateEntityQuery(typeof(NetworkTime));
+            em.SetComponentData(q.GetSingletonEntity(), new NetworkTime { ServerTick = new NetworkTick(tick) });
+        }
+
         [Test]
         public void Seeds_ByRoomDifficulty_AndSpawnsTaggedAtActiveSlotOrigin()
         {
@@ -91,7 +97,11 @@ namespace ProjectM.Tests
             var plan = RoomLayoutMath.Plan(map.NodeAt(RunMap.NodeId(0, 0)), 0, map.LayerCount);
             int slots = ZoneEnemyMath.WaveSlots(plan.DifficultyEpoch, Bands());
 
-            group.Update(); // seeds + first slot spawns this tick
+            group.Update(); // seeds; the landing grace holds the first slot (demo polish)
+            Assert.AreEqual(slots, em.GetComponentData<ZoneEnemyState>(zoneDir).RemainingToSpawn,
+                "grace: nothing spawns on the seed tick");
+            AdvanceTick(em, T0 + Tuning.RoomEntryGraceTicks + 1);
+            group.Update(); // grace elapsed -> the first slot drips
 
             var zs = em.GetComponentData<ZoneEnemyState>(zoneDir);
             Assert.AreEqual(1, zs.SeededEpoch, "seeded for RoomEpoch 1");
@@ -121,7 +131,9 @@ namespace ProjectM.Tests
             var (world, group, runDir, zoneDir) = MakeWorld(bossLayer, map.BossNodeId, activeSubSlot: (byte)(bossLayer & 1));
             var em = world.EntityManager;
 
-            group.Update();
+            group.Update(); // seed tick (the landing grace holds the boss)
+            AdvanceTick(em, T0 + Tuning.RoomEntryGraceTicks + 1);
+            group.Update(); // grace elapsed -> the boss spawns
 
             var zs = em.GetComponentData<ZoneEnemyState>(zoneDir);
             Assert.AreEqual(0, zs.RemainingToSpawn, "a boss room is a single-slot wave, fully spawned");