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ModernUO/Projects/UOContent/Items/Weapons
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Kamron Batman ee2cd1d18d
feat: Adds new decay system and SkipSerialization (#2311) 
## Summary

- Replaces scan-based decay checking during world saves with an event-driven timer wheel scheduler
- Removes virtual property checks from serialization hot path, achieving 6-8x faster world saves

## Changes

### DecayScheduler (new):
- Timer wheel with 12 HashSet buckets (5-min intervals) + PriorityQueue for active processing
- O(1) register/unregister vs O(n) scan of all items
- Auto start/stop when items exist/empty
- Configurable tick interval with jitter to prevent system synchronization

### Item.cs:
- Added ScheduledDecayTime computed property
- Added UpdateDecayRegistration() called from SetLastMoved(), property setters, AddItem()/RemoveItem()
- Hooks in Visible, Movable, Spawner setters and Delete()

### World.cs:
- Removed _decayQueue, EnqueueForDecay(), ProcessDecay()
- ItemPersistence.Serialize() now tight loop without virtual calls

## Performance

| Metric        | Before     | After     | Improvement |
|---------------|------------|-----------|-------------|
| Items (230K)  | 245K ticks | 34K ticks | 8x faster   |
| Mobiles (43K) | 56K ticks  | 6K ticks  | 9x faster   |
| Total         | 302K ticks | 40K ticks | 7.5x faster |

## Configuration

decay.maxItemsPerTick = 250       # Items processed per tick
decay.tickInterval = 256ms        # Base processing interval
decay.bucketInterval = 5min       # Timer wheel bucket size
decay.jitterMaxMs = 25            # ±25ms tick jitter
2026-01-08 11:43:51 -08:00
..
Abilities chore: Use var everywhere (#2294) 2025-12-27 16:47:28 -08:00
Artifacts fix: Adds back razor/assistuo negotiations (#1089) 2022-06-25 01:47:45 -07:00
Axes fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
Knives fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
Maces fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
ML Weapons fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
PoleArms fix: Optimizes items to use default weights. (Part 2) (#2241) 2025-07-24 15:41:44 -07:00
Ranged fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
SE Weapons fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
SpearsAndForks fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
Staves fix: Optimizes items to use default weights. (Part 4) (#2243) 2025-07-24 23:29:29 -07:00
Swords fix: Optimizes items to use default weights. (Part 2) (#2241) 2025-07-24 15:41:44 -07:00
Throwing chore: Use var everywhere (#2294) 2025-12-27 16:47:28 -08:00
Wooden fix: Updates serialization to use v2.0 (#998) 2022-04-17 08:02:15 -07:00
BaseMeleeWeapon.cs Fixes brace style (#248) 2020-09-13 21:49:46 -07:00
BaseWeapon.cs fix: Fixes serializing EngravedText (#2296) 2025-12-28 02:44:49 -08:00
Fists.cs feat: Adds new decay system and SkipSerialization (#2311) 2026-01-08 11:43:51 -08:00
HitLower.cs fix(core): Adds Hashed & Hierarchical Timer Wheel (#655) 2021-07-11 22:42:06 -07:00
SlayerEntry.cs feat: Adds Pre-UOTD single click support for weapons, armor, wands, and clothing (#2053) 2025-01-13 17:04:24 -08:00
SlayerGroup.cs fix: Fixes ignoring mobs, champions, party crash, slayer rarity, boat speedhack, etc (#1222) 2022-10-31 22:16:50 -07:00
SlayerName.cs Formats UO Content (#201) 2020-08-27 18:30:38 -07:00
WeaponEnums.cs fix: Adds throwing weapons (#1107) 2022-07-01 17:03:27 -07:00