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Sloped belts and filters, laid by a 45° drag (t40)

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-25 23:17:55 -04:00
co-authored by Claude Opus 5.5
parent 24eb9559f8
commit e19cb784d2
26 changed files with 531 additions and 110 deletions
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src/render/world.js
+14 -2
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@@ -281,6 +281,11 @@ function drawWorld() {
if (pipeBodyCell(x, y)) { thinPipeColor(x, y, anim); r = PC[0]; g = PC[1]; b = PC[2]; }
}
}
const sb = slopeBeltAt(i, x, y), slopeArt = sb >= 0 && (m === EMPTY || PH[m] === PH_GAS || m === BELTL || m === BELTR);
if (slopeArt) {
const color = slopeBeltColor(sb, x, y, anim, br, bgc, bb);
r = color & 255; g = color >> 8 & 255; b = color >> 16 & 255;
}
// incandescence
if (T > 450 && m !== EMPTY && incand) {
const gi = glowIndex(PH[m] === PH_SOLID ? T + nz * 0.9 : m === MAGMA ? T + Math.sin(x * 0.19 + y * 0.11 + anim * 0.03 + nz * 0.04) * 55 - 30 : T), w = GLOW_W[gi];
@@ -296,9 +301,9 @@ function drawWorld() {
// what kind of thing this grain is drawn as: 0 open, 1 terrain, 2 loose grain, 3 liquid,
// 4 built piece (drawn crisp), 5 smoke and flame, 6 built wall block (drawn as a tile)
let cl = 0;
const pt = p === P_PIPE && !pipeBodyCell(x, y) ? 0 : p; // the open parts of a pipe block show what is in them
const pt = (p === P_PIPE && !pipeBodyCell(x, y)) || (p === P_FILTER && sb >= 0) ? 0 : p; // the open parts of a pipe block show what is in them
if (IS_TUBE[pt]) cl = TUBE_CLASS[pt];
else if (p === P_FILTER) {
else if (p === P_FILTER && sb < 0) {
// filter: 13 carries left, 14 right; the tree buffer carries its colour tag (first material) and mode
const fb = (y >> 2) * BW + (x >> 2), fc = filterCfg.get(fb), fm = fc && fc.m.length ? fc.m[0] : 0;
cl = blockV[fb] & 128 ? 14 : 13;
@@ -319,6 +324,13 @@ function drawWorld() {
const wm = WALL_OF[blockV[(y >> 2) * BW + (x >> 2)]];
r = COLR[wm]; g = COLG[wm]; b = COLB[wm];
}
if (slopeArt) {
const code = blockP[sb], dir = isFilter(code) ? (blockV[sb] & 128 ? 1 : 0) : blockV[sb];
cl = 23 + (code - BP_BELT_UP) * 2 + dir;
const f = isFilter(code) && filterCfg.get(sb), fm = f && f.m[0];
tpx[row + bx] = ((sb !== (y >> 2) * BW + (x >> 2) ? 0x80 : 0x40) << 24) |
(fm ? (COLB[fm] << 16) | (COLG[fm] << 8) | COLR[fm] : 0);
}
top = cl << 24;
fpx[row + bx] = (tb ? 0xff000000 : 0) | (cl === 5 ? 0xff0000 : 0) | (cl === 3 ? 0xff00 : 0) | (cl === 1 && !builtForLight(i, x, y) ? 0xff : 0);
}