Monorepo for Aesthetic.Computer
aesthetic.computer
blank: flip lid y so at 180° it extends downward like base
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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system/public/aesthetic.computer/disks/blank.mjs
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system/public/aesthetic.computer/disks/blank.mjs
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const cosH = cos(hingeAngle), sinH = sin(hingeAngle);
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// Lid in local space: extends DOWN from y=0, same as base
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// y: 0 to lidThick, z: gap to 2*hd (gap keeps hinge edges from touching)
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// At 180°: y flips → extends UP (flush with base top), z flips → extends behind
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// Lid in local space: extends UP from y=0 (negative y)
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// At 180° (cos=-1): y flips sign → extends DOWN (positive y, same as base)
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// Both halves flat and co-planar, both extending downward from y=0
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const lidLocal = [
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[-hw, 0, gap], [hw, 0, gap],
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[hw, lidThick, gap], [-hw, lidThick, gap],
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[hw, -lidThick, gap], [-hw, -lidThick, gap],
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[-hw, 0, 2 * hd], [hw, 0, 2 * hd],
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[hw, lidThick, 2 * hd], [-hw, lidThick, 2 * hd],
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[hw, -lidThick, 2 * hd], [-hw, -lidThick, 2 * hd],
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];
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// Rotate lid around pivot (y=0, z=0 in local = pivot point)