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Artist Map v2: de-lag one-island genre view + move island nav to top-left

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- Focused islands now render from the high-res buffer (one cheap crisp blit)
  instead of redrawing every bubble each frame for the bob. In one-island mode
  the buffer already covers just that island at high resolution, so this is
  crisp AND cheap — kills the genre lag. Bob/shove stay live only for small
  views (zoomed-in subsets, explore) where per-frame redraw is cheap.
  (Overflow threshold 650→140; the loop parks once the island bakes.)
- Fewer bubbles per island (maxPerIsland 500→300) — less cramped, lighter bloom.
- Island nav bar moved from bottom-center to top-left (clears the genre sidebar
  + toolbar). 64 JS integrity tests pass.
This commit is contained in:
BoulderBadgeDad 2026-06-03 11:09:02 -07:00
parent 80d775a5da
commit e2eac64dce
1 changed files with 11 additions and 6 deletions
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17
webui/static/discover.js
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@ -5122,7 +5122,7 @@ function _artMapLayoutIslands(groups, opts = {}) {
_artMap._islands = [];
const nodeR = opts.nodeR || (_artMap.WATCHLIST_R * 0.22);
const gap = opts.gap || (_artMap.BUFFER * 2.2);
const cap = opts.maxPerIsland || 500;
const cap = opts.maxPerIsland || 300;
let pid = 0;
const islands = groups.map(g => {
@ -5291,9 +5291,12 @@ function _artMapUpdateIslandNav() {
if (!nav) {
nav = document.createElement('div');
nav.id = 'artmap-island-nav';
nav.style.cssText = 'position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:14px;padding:8px 14px;background:rgba(16,12,28,0.82);backdrop-filter:blur(10px);border:1px solid rgba(168,85,247,0.25);border-radius:999px;z-index:30;box-shadow:0 6px 24px rgba(0,0,0,0.45);user-select:none;';
container.appendChild(nav);
}
// Position top-left, clearing the genre sidebar (when shown) and the toolbar.
const sb = document.getElementById('artmap-genre-sidebar');
const sbW = (sb && sb.style.display !== 'none') ? (sb.offsetWidth || 0) : 0;
nav.style.cssText = `position:absolute;top:64px;left:${sbW + 16}px;display:flex;align-items:center;gap:12px;padding:7px 12px;background:rgba(16,12,28,0.82);backdrop-filter:blur(10px);border:1px solid rgba(168,85,247,0.25);border-radius:14px;z-index:30;box-shadow:0 6px 24px rgba(0,0,0,0.45);user-select:none;`;
const idx = _artMap._focusIdx || 0;
const isl = islands[idx];
const btn = 'width:30px;height:30px;border-radius:50%;border:1px solid rgba(255,255,255,0.18);background:rgba(255,255,255,0.06);color:#fff;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:center;';
@ -5521,10 +5524,12 @@ function _artMapRebuildBuffer() {
const bz = _artMap.zoom;
let liveN = 0;
for (const n of visible) { if (!n._isLabel && (n.radius || 0) * bz >= _artMap.LIVE_PX) liveN++; }
// A single focused island (≤ maxPerIsland 500) should render via the crisp
// live layer; only fall back to baking-everything when there are clearly more
// bubbles than the live layer can draw.
_artMap._liveOverflow = liveN > 650;
// In one-island mode the buffer already covers just the focused island at
// high resolution, so let the BUFFER own any non-trivial crowd (one cheap
// crisp blit, no per-frame redraw → no lag). The live layer + bob/shove only
// take over for small views (zoomed-in subsets, explore) where redrawing a
// handful of bubbles each frame is cheap.
_artMap._liveOverflow = liveN > 140;
octx.scale(scale, scale);
octx.translate(-minX, -minY);