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fix(physics): make collision activation starvation-free

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This commit is contained in:
Erik 2026-07-31 18:34:46 +02:00
parent d94145e6b8
commit 6b28ff999c
14 changed files with 4637 additions and 474 deletions
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24
src/AcDream.App/Streaming/LandblockPhysicsPublisher.cs
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@ -265,6 +265,13 @@ public sealed class LandblockPhysicsPublisher
if (publication.PreparationCommitted)
return true;
if (!_physics.AdvanceCollisionGenerationPreparation(
publication.CollisionAdmission,
publication.PreparedGeneration).Completed)
{
return false;
}
IReadOnlyList<WorldEntity> entities =
publication.Build.Landblock.Entities;
if (publication.Build.Collisions is { } collisions)
@ -548,7 +555,13 @@ public sealed class LandblockPhysicsPublisher
publication.RefloodCommitted = false;
}
}
else
// Seal reconciliation and the zero-work root transfer are one host
// update-thread transaction. Deferring this commit to the next frame
// would let continuously moving, unrelated live owners dirty their
// already-visited journal slots forever even though each metered replay
// had just caught up exactly.
if (publication.SealCommitted && !publication.CompletionCommitted)
{
RuntimeCollisionGenerationCommit commit =
_physics.CommitCollisionGeneration(
@ -556,12 +569,9 @@ public sealed class LandblockPhysicsPublisher
publication.PreparedGeneration);
if (!commit.Committed)
{
_physics.RestartCollisionRetainedOwnerCapture(
publication.CollisionAdmission,
publication.PreparedGeneration);
publication.RefloodOwnerIds = null;
publication.RefloodCursor = 0;
publication.RefloodCommitted = false;
// Runtime coalesces post-seal arrivals in its owner journal.
// Resume that seal tail rather than restarting the
// completed generation-wide capture/reflood pass.
publication.SealCommitted = false;
_completePublishTicks += Stopwatch.GetTimestamp() - started;
return false;