SawatoMosswartsEnjoyersClub/MosswartOverlord
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Optimize renderTrails to build SVG point strings directly

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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
erik 2026-02-26 09:31:03 +00:00
parent 982bdb77e2
commit 6f121e2a90
1 changed files with 18 additions and 19 deletions
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21
static/script.js
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@ -1778,19 +1778,18 @@ function render(players) {
/* ---------- rendering trails ------------------------------- */
function renderTrails(trailData) {
trailsContainer.innerHTML = '';
const byChar = trailData.reduce((acc, pt) => {
(acc[pt.character_name] = acc[pt.character_name] || []).push(pt);
return acc;
}, {});
for (const [name, pts] of Object.entries(byChar)) {
if (pts.length < 2) continue;
const points = pts.map(pt => {
// Build point strings directly - avoid intermediate arrays
const byChar = {};
for (const pt of trailData) {
const { x, y } = worldToPx(pt.ew, pt.ns);
return `${x},${y}`;
}).join(' ');
const key = pt.character_name;
if (!byChar[key]) byChar[key] = { points: `${x},${y}`, count: 1 };
else { byChar[key].points += ` ${x},${y}`; byChar[key].count++; }
}
for (const name in byChar) {
if (byChar[name].count < 2) continue;
const poly = document.createElementNS('http://www.w3.org/2000/svg', 'polyline');
poly.setAttribute('points', points);
// Use the same color as the player dot for consistency
poly.setAttribute('points', byChar[name].points);
poly.setAttribute('stroke', getColorFor(name));
poly.setAttribute('fill', 'none');
poly.setAttribute('class', 'trail-path');