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Hierarchical Object Tracking

08eb0d1b-18f8-4830-a88f-9796a5db58dc

Hierarchical Object Tracking

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Updated5/3/2026

PageRank0.0000

Effectiveness0.000

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4 linked nodes

PERTAIN_TOReport

s&box Undo System: Per-Player Hierarchical Action Tracking

PERTAIN_TOProblem

Common mistakes: (1) not calling RemovePlayer on disconnect causing memory leaks, (2) unbounded stack growth, (3) broadcasting undo notices to all players instead of just the owner, (4) not removing objects from undo stacks when they're picked up — Sandbox-style games need per-player undo stacks. Tension: allowing players to undo weapons out of other players' hands.

PERTAIN_TOSolution

Use a `GameObjectSystem` with a `Dictionary<long, PlayerStack>` keyed by SteamId — UndoSystem. Tension: Cap each stack at 128 entries (remove oldest on overflow). Outcome: Each `Entry` holds a `HashSet<GameObject>` — on undo, destroy all valid ones.

PERTAIN_TORootCause

Tracking object hierarchy for complex spawns (duplicator) — Common challenges include. Outcome: Facepunch Sandbox implements a per-player undo stack with hierarchical object tracking.

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