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Sloped belts hold their load with moving cleats (t42); sloped filters are downhill shaking screens (t43)

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The magic grip is gone: cleats every 8 face cells, 6 grains tall, carry
pockets uphill (about 71 grains/s against 90 flat) and overflow rolls
back. Sloped filters always run downhill; grains travel by gravity and
a shake, and sorting stays exact. Drawing needs another pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-26 19:47:59 -04:00
co-authored by Claude Opus 5.5
parent 1f8a89db6a
commit 578b55316b
28 changed files with 425 additions and 89 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/sim/blocks.js
+3 -3
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@@ -68,7 +68,7 @@ function placeBlock(code, v, bx, by, free, extra) {
}
if (isPipeCode(code)) pipesDirty = true;
blockP[by * BW + bx] = code; blockV[by * BW + bx] = v;
if (isFilter(code)) { blockV[by * BW + bx] = v & 128; filterCfg.set(by * BW + bx, filterRec(extra)); filtersDirty = true; }
if (isFilter(code)) { blockV[by * BW + bx] = filterVariant(code, v); filterCfg.set(by * BW + bx, filterRec(extra)); filtersDirty = true; }
if (isProcCode(code)) procDirty = true;
if (code === BP_RACK) {
const b = by * BW + bx, s = newRack();
@@ -197,7 +197,7 @@ function blockInReach(bx, by) { return inReach(bx * BS + BS / 2, by * BS + BS /
// Is block b already exactly this piece (same kind, variant and, for a filter, settings)?
function blockIs(b, code, v, extra) {
if (blockP[b] !== code) return false;
if (isFilter(code)) return (blockV[b] & 128) === (v & 128) && sameFilter(filterInfo(b), cleanFilterCfg(extra));
if (isFilter(code)) return (blockV[b] & 128) === filterVariant(code, v) && sameFilter(filterInfo(b), cleanFilterCfg(extra));
return blockV[b] === v;
}
// replace: a block already built in the way is taken down (and refunded) to make room
@@ -208,7 +208,7 @@ function placeBlocks(code, v, list, extra, replace) {
const b = by * BW + bx;
if (replace && blockP[b]) {
if (blockIs(b, code, v, extra)) continue;
if (blockP[b] === code && isFilter(code)) { undoNote({ t: 'filter', bx, by, v: blockV[b], extra: filterInfo(b) }); blockV[b] = v & 128; setFilter(b, extra); filtersDirty = true; n++; continue; } // just re-set it
if (blockP[b] === code && isFilter(code)) { undoNote({ t: 'filter', bx, by, v: blockV[b], extra: filterInfo(b) }); blockV[b] = filterVariant(code, v); setFilter(b, extra); filtersDirty = true; n++; continue; } // just re-set it
if (!canAfford(pieceCost(code, v), 1)) { last = needText(pieceCost(code, v), 1); break; }
removeBlock(bx, by);
}