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Shift-drag draws a line for belts and other transport pieces

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Belts, filters, screw conveyors, shafts and pipe pieces never fill a rectangle;
a diagonal belt drag stays sloped with Shift held.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-26 23:27:06 -04:00
co-authored by Claude Opus 5.5
parent 664e086969
commit 18528a7f73
10 changed files with 36 additions and 12 deletions
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src/ui/actions.js
+1 -1
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@@ -167,7 +167,7 @@ function primaryRelease(shift) {
}
if (t === 'build' && GAME.drag) {
const P = piece(), b = aimBlock(), code = pieceCode(P, b);
const list = shift ? blockRect(GAME.drag.bx, GAME.drag.by, b.bx, b.by) : blockLine(GAME.drag.bx, GAME.drag.by, b.bx, b.by, isWall(code) || isSlopeBelt(code) || code === BP_SCREW);
const list = shift && !lineOnly(code) ? blockRect(GAME.drag.bx, GAME.drag.by, b.bx, b.by) : blockLine(GAME.drag.bx, GAME.drag.by, b.bx, b.by, isWall(code) || isSlopeBelt(code) || code === BP_SCREW);
const dd = dragDirFor(P, GAME.drag, b);
if (dd >= 0) GAME.pieceDir[P.id] = dd;
const v = pieceV(P), ex = pieceExtra(P);
src/ui/build-menu.js
+1 -1
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@@ -87,7 +87,7 @@ function renderBuildBar() {
if (!tip) return;
const size = tip.kind === 'machine' ? `${tip.bw}×${tip.bh} blocks` : tip.kind === 'mold' ? `${MOLDS[tip.mold].bw}×${MOLDS[tip.mold].bh} blocks` : '1 block';
pop.innerHTML = `<div class="bb-title">${pieceIcon(tip.id)}<b>${esc(tip.name)}</b></div><div class="bb-chips">${chipCost(pieceCostNow(tip))}<span class="chip">${size}</span>${tip.power ? `<span class="chip">${tip.power} power</span>` : ''}</div>
<div class="bb-desc">${esc(tip.desc)}</div><div class="bb-place"><b>How to place</b> ${tip.kind === 'block' ? 'Drag for a line, Shift-drag for a rectangle; out of reach becomes ghosts.' : 'Click to place.'}${tip.dirs && tip.kind === 'block' ? ' A dragged line runs the way you drag it; a single click uses <kbd>R</kbd>.' : tip.dirs ? ' <kbd>R</kbd> turns it.' : pieceUsesWall(tip) ? ' <kbd>R</kbd> cycles materials; <kbd>F</kbd> opens the material menu.' : ''}</div>
<div class="bb-desc">${esc(tip.desc)}</div><div class="bb-place"><b>How to place</b> ${tip.kind === 'block' ? (lineOnly(tip.code) ? 'Drag for a line' : 'Drag for a line, Shift-drag for a rectangle') + '; out of reach becomes ghosts.' : 'Click to place.'}${tip.dirs && tip.kind === 'block' ? ' A dragged line runs the way you drag it; a single click uses <kbd>R</kbd>.' : tip.dirs ? ' <kbd>R</kbd> turns it.' : pieceUsesWall(tip) ? ' <kbd>R</kbd> cycles materials; <kbd>F</kbd> opens the material menu.' : ''}</div>
${tip.filter ? `<div class="bb-place">New ones will ${esc(filterSentence(GAME.filterCfg))}. <kbd>F</kbd> sets materials and mode (or click materials in the bag, or <kbd>T</kbd> over one); <kbd>F</kbd> on a placed filter changes its whole row.</div>` : ''}
<div class="bb-place">hold <kbd>G</kbd> replace · <kbd>Ctrl</kbd>+<kbd>Z</kbd> undo · right click take back · middle mouse pick · hold <kbd>C</kbd>/<kbd>X</kbd> copy/cut · <kbd>V</kbd> paste</div>`;
const tile = bar.querySelector(`[data-piece="${tip.id}"]`); if (!tile) { pop.hidden = true; return; }
src/ui/notebook.js
+1 -1
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@@ -71,7 +71,7 @@ function controlsHtml() {
const tools = [
['1 Resonance drill', 'Hold left click to send pulses from the bot toward the cursor: rock they shake hard enough shatters and falls as rubble, ore, coal or scrap, and trees come apart into wood chunks and acorns. Q and E set the pulse width: narrow bores a tunnel fast, wide clears a big cone slowly, medium is in between. R over a material tunes the drill to it, so only that shatters (great for pulling a vein out of the rock); R again untunes. Built blocks are never harmed. Better bits dig harder rock, faster and further.'],
['2 Pneumatic nozzle', "Left drag picks up the selection, or what you click if nothing is selected. Right click blows the selection. Click a bag name or Q/E selects one; Ctrl+click mixes. Hold Ctrl to see everything found. Clear removes the selection. Bars blow alone. Blowing out the last of a material deselects it. Shift while not flying takes everything; Shift + right click blows everything loose in the bag."],
['3 Build', 'Places pieces on a grid of 4×4 blocks: wall blocks, belts, screw conveyors, filters, grates, gates, pipes, pumps, outlets, Grinders, Saws, Brick presses and Bar racks, machines (fans and silos) and molds. Drag for a line, hold Shift while dragging for a filled rectangle. A diagonal wall drag makes a sealed sloped face, solid below; T flips it. For one wall block, T cycles square and four slope corners. Diagonal belts use cleats to carry pockets up or down. Extra grains roll back. Diagonal filters always screen downhill, whichever way you drag. R leaves a picked sloped filter downhill. Right click takes a piece back. Your bot flies through anything you build.'],
['3 Build', 'Places pieces on a grid of 4×4 blocks: wall blocks, belts, screw conveyors, filters, grates, gates, pipes, pumps, outlets, Grinders, Saws, Brick presses and Bar racks, machines (fans and silos) and molds. Drag for a line, hold Shift while dragging for a filled rectangle (belts, screw conveyors, filters, shafts and pipes always draw a line). A diagonal wall drag makes a sealed sloped face, solid below; T flips it. For one wall block, T cycles square and four slope corners. Uphill belts use cleats to carry pockets up; downhill they carry like a flat belt. Extra grains roll back. Diagonal filters always screen downhill, whichever way you drag. R leaves a picked sloped filter downhill. Right click takes a piece back. Your bot flies through anything you build.'],
['4 Igniter', 'Heats a small spot to 640°C, and its flame reaches a few grains into a pile. Enough to light coal and wood that touch air.'],
['Copy, cut and paste', 'Hold C (copy) or X (cut) and drag a box over what you built; let go and it is picked up, ready to paste. Cut takes it down and refunds it to your bag. Click to place ghosts: your bot builds them from your bag when it is close. R flips, V pastes again, right click or Esc stops. Ctrl+Z undoes building. The notebook (B) keeps saved blueprints and a few starter designs.'],
];
src/ui/previews.js
+1 -1
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@@ -105,7 +105,7 @@ function drawPreviews() {
if (P.kind === 'block') {
const v = pieceV(P);
col = previewColor(code, v);
cells = GAME.drag ? (modShift() ? blockRect(GAME.drag.bx, GAME.drag.by, b.bx, b.by) : blockLine(GAME.drag.bx, GAME.drag.by, b.bx, b.by, isWall(code) || isSlopeBelt(code) || code === BP_SCREW)) : [[b.bx, b.by]];
cells = GAME.drag ? (modShift() && !lineOnly(code) ? blockRect(GAME.drag.bx, GAME.drag.by, b.bx, b.by) : blockLine(GAME.drag.bx, GAME.drag.by, b.bx, b.by, isWall(code) || isSlopeBelt(code) || code === BP_SCREW)) : [[b.bx, b.by]];
const dd = GAME.drag ? dragDirFor(P, GAME.drag, b) : -1;
if (dd !== GAME.dragDir) { GAME.dragDir = dd; hudDirty = true; }
const dIdx = dd >= 0 ? dd : (GAME.pieceDir[P.id] || 0);
src/ui/selection.js
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@@ -99,7 +99,8 @@ function pieceCostNow(P, m = GAME.wallMat) {
function pieceCode(P, end = aimBlock()) {
if (P.id === 'belt' || P.filter) {
const a = GAME.drag || end;
if (GAME.drag && diagonalDrag(end.bx - a.bx, end.by - a.by) && !(typeof modShift === 'function' && modShift()))
// Shift changes nothing here: belts and filters only ever draw a line
if (GAME.drag && diagonalDrag(end.bx - a.bx, end.by - a.by))
return (P.filter ? BP_FILTER_UP : BP_BELT_UP) + ((end.bx - a.bx) * (end.by - a.by) > 0 ? 1 : 0);
if (end.bx === a.bx && end.by === a.by) return GAME.pieceShape && GAME.pieceShape[P.id] || P.code;
return P.code;