AliReza
355bae7035
- Home is now the island path of every unit with one clear Start button on the
current island; the six-card dashboard is gone.
- Start opens /nodes/{id}/quiz (4 questions) instead of one-question lessons, so
an island takes one round instead of ~11. Lessons stay one tap away in the sheet.
- Tutor answers render the backend's validated diagram (plane, number line,
fraction) as React SVG; function expressions go through a small parser, no eval.
- Tedi, the mobile-preview mascot, joins as the fourth companion with all six moods
and an onboarding slide.
- Light polish: 3D buttons, header gradients, warmer page background.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
13 lines
642 B
TypeScript
13 lines
642 B
TypeScript
/** رنگِ hex را روشن (amount > 0) یا تیره (amount < 0) میکند؛ برای سایهی دکمههای سهبعدی. */
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export function shade(hex: string, amount: number): string {
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const m = /^#?([0-9a-f]{6})$/i.exec(hex.trim());
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if (!m) return hex;
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const n = parseInt(m[1], 16);
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const channel = (c: number) => {
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const v = amount < 0 ? c * (1 + amount) : c + (255 - c) * amount;
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return Math.max(0, Math.min(255, Math.round(v)));
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};
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const r = channel((n >> 16) & 255), g = channel((n >> 8) & 255), b = channel(n & 255);
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return `#${((r << 16) | (g << 8) | b).toString(16).padStart(6, '0')}`;
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}
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