ludic/docs/language/assets/assets-pump.md
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feat(assets): #82 incremental asset preloading + loading-scene pattern
Assets loaded synchronously in Boot stalled the first frame(s). Adds an
Assets.* preload queue over the #81 atlas: Assets.enqueue(name, path) queues a
named image without loading it, Assets.pump(max) loads up to max per frame
(returns how many), and Assets.total/loaded/ready/progress (0..100) drive a
progress bar. A loading scene pumps a few per frame, draws Assets.progress(),
and becomes the play scene once Assets.ready() — the deterministic, no-threads
form of async preloading (work spread across frames; same enqueue+pump order
loads identically every run). Loaded assets are reachable by name via
Assets.get / Sprite.named.

Example preload (enqueue 3, pump incrementally 0->33->66->100, ready flips, get
by name) prints 3 0 0 0 1 33 66 1 100 1. 6 docs pages. Full suite 117/0,
fixpoint holds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-09-02 08:19:19 +03:00

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---
id: assets-pump
name: Assets.pump
category: assets
kind: namespace-method
tokens: Assets.pump
sig: Assets.pump(max) -> int
tip: Load up to max queued assets this frame; returns how many it loaded.
order: 5
ns: Assets
member: pump
---
Loads up to <code>max</code> queued assets this frame, registering each under its name, and returns how many it loaded. Call it each frame in a loading scene with a small <code>max</code> so the frame stays short and the loading screen animates; <a href="assets-ready"><code>Assets.ready</code></a> flips true when the queue is drained. This is the deterministic, no-threads form of async preloading — the work is spread across frames instead of stalling one.