Function: createUiProgressBarEcsSystem()

createUiProgressBarEcsSystem(): EcsSystem<[UiProgressBarEcsComponent]>

Defined in: ui/systems/ui-progress-bar-system.ts:25

Creates a system that drives a UiProgressBarEcsComponent's fill entity anchorMax.x from value every tick - the same "normalize, then anchor a stretch rect to it" mechanism createUiSliderEcsSystem uses for a slider's fill, without the drag handling a progress bar has no need for.

createUiCanvas registers this once per world, before createUiLayoutEcsSystem, so a value write and the fill visual it produces land in the same frame - unlike createUiSliderEcsSystem, which has to run after the interaction pipeline and so lags a frame.

Returns

EcsSystem<[UiProgressBarEcsComponent]>

The UI progress bar ECS system.