import { MaterialEffect } from "../../materials/MaterialEffect.js";
import { Trait, World } from "koota";
//#region src/ecs/systems/batchAssignSystem.d.ts
/**
 * Create a batch-assign system bound to its own scratch state.
 *
 * Each SpriteGroup constructs one. The returned function takes a world
 * + effect-trait map and assigns newly renderable sprites to batches.
 *
 * Triggered by Added(IsRenderable). Computes the run key from
 * (sortLayer, materialId, layers.mask), finds or creates a batch in that run, allocates
 * a slot, and sets the InBatch relation with slot data. Also performs
 * a one-time full buffer sync from trait state.
 *
 * Closes over its own `Added` subscription + `dirtyMeshes`/`pendingCounts`
 * scratch collections so multiple SpriteGroups don't share Koota
 * change-tracking state and the collections are cleared-and-reused
 * instead of allocated per frame.
 */
declare function createBatchAssignSystem(): (world: World, effectTraits: ReadonlyMap<Trait, typeof MaterialEffect>) => boolean;
//#endregion
export { createBatchAssignSystem };
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