Lifecycle.selected_age: def of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/lifecycle.bend as Lifecycle
Lines 56-60 of bendvy-ecs-core@0.1.0.3/lifecycle.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/lifecycle.bend&start_line=56&end_line=60

import Base
import bendvy-ecs-core@0.1.0.3/change_tick.bend as Tick

# Presence is explicit: wrapped tick zero is a valid component timestamp.
def selected_age(+stamp:Tick.Tick,cursor:Maybe<&2,Tick.Tick>,+this:Tick.Tick) -> Bool:
  match cursor:
    case None{}:Bool.and(Tick.not_future(stamp,this),U32.is_lt(Tick.age(stamp,this),Tick.max_change_age()))
    case Some{last}:Tick.newer(stamp,last,this)

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=Tick
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=age
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=max_change_age
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=newer
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=not_future