class

Entitas::ReactiveSystem

Inherits Entitas::Systems::ReactiveSystem / Entitas::Systems::ExecuteSystem / Entitas::System / Entitas::System / Reference / Object

A Entitas::ReactiveSystem calls Execute(entities) if there were changes based on the specified Entitas::Collector and will only pass in changed entities. A common use-case is to react to changes, e.g. a change of the position of an entity to update the gameObject.transform.position of the related gameObject.

Constants

Log = ::Log.for(self)

Constructors

new(collector : ICollector)

Source

Instance methods

activate

Activates the ReactiveSystem and starts observing changes based on the specified Collector. ReactiveSystem are activated by default.

Source

clear

Clears all accumulated changes.

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deactivate

Deactivates the ReactiveSystem. No changes will be tracked while deactivated. This will also clear the ReactiveSystem. ReactiveSystem are activated by default.

Source

execute(entities : Array(Entitas::IEntity))

Source

execute

Source

filter(entity)

This will exclude all entities which don't pass the filter.

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get_trigger(context : Entitas::Context) : ICollector

Specify the collector that will trigger the ReactiveSystem.

Source

to_s(io)

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