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Add StaggeredUpdateTracker for tick spreading#23
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Add an entity system helper designed to be used where a component is updated on a regular interval greater than one tick, with updates intended to be spread across multiple ticks. This is intended to replace several places today where content records a next update field on a component, then iterates all entities every tick checking to see if it is time to update that component. The implementation in this commit efficiently keeps a sorted schedule of updates and allows the entities due to update (and only those entities) to be enumerated in amortized constant time for each. Removed components are handled lazily, and new components are handled via a priority queue. The schedule itself is implemented as a ring buffer. A limitation of the approach is that the update interval cannot vary across individual instances of tracked components.
Velken
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enhancement
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Add an entity system helper designed to be used where a component is updated on a regular interval greater than one
tick, with updates intended to be spread across multiple ticks. This is intended to replace several places today where
content records a next update field on a component, then iterates all entities every tick checking to see if it is time
to update that component.
The implementation in this commit efficiently keeps a sorted schedule of updates and allows the entities due to update
(and only those entities) to be enumerated in amortized constant time for each. Removed components are handled lazily,
and new components are handled via a priority queue. The schedule itself is implemented as a ring buffer.
A limitation of the approach is that the update interval cannot vary across individual instances of tracked components.