ModernUO/Projects/UOContent/Migrations/Server.Multis.BaseCamp.v2.json
Kamron Batman 8d1283ba27
feat: convert all delta-time serialization to anchored time
Every actively-written delta-time value now stores an absolute anchored
timestamp, shifted by downtime at load: remaining time is preserved across
restarts and idle saves become byte-stable.

- Item v11: LastMoved (was whole-minute delta, rewritten every save) and
  DecayResetTime; Mobile v38: the three stat-gain stamps; BaseCreature v21:
  SummonEnd; plus VendorInventory, StealableArtifacts, and ML quest objective
  timers in their own version gates.
- 17 code-generated classes swap [DeltaDateTime] for [AnchoredDateTime] with a
  version bump and MigrateFrom each (generated from their current migration
  schemas, so old saves replay the delta reads).
- GenericPersistence payloads carry no anchor of their own, so they inherit
  the save-wide shift: entity indexes always load first, and every file in a
  save shares one SaveStartTime - World.LoadTimeShift is stamped from the idx
  v5 header and applied to generic persistence readers. This is what makes
  VirtueContext and StealableArtifacts convertible at all.
- Legacy read sites (old-version fallbacks and migration replays) keep
  ReadDeltaTime: they decode old bytes and must never change.

Acceptance tests: item serialization is byte-identical across saves hours
apart, and LastMoved/DecayResetTime round-trip exactly at sub-minute
precision (impossible under the old minutes encoding).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-22 19:19:42 -07:00

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Generated

{
"version": 2,
"type": "Server.Multis.BaseCamp",
"properties": [
{
"name": "Items",
"type": "System.Collections.Generic.List\u003CServer.Item\u003E",
"rule": "ListMigrationRule",
"ruleArguments": [
"@Tidy",
"Server.Item",
"SerializableInterfaceMigrationRule"
]
},
{
"name": "Mobiles",
"type": "System.Collections.Generic.List\u003CServer.Mobile\u003E",
"rule": "ListMigrationRule",
"ruleArguments": [
"@Tidy",
"Server.Mobile",
"SerializableInterfaceMigrationRule"
]
},
{
"name": "DecayTime",
"type": "System.DateTime",
"rule": "PrimitiveTypeMigrationRule",
"ruleArguments": [
"AnchoredTime"
]
}
]
}