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Improve carousel behavior for seamless infinite scrolling

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Refactor the `CategoryRow` component in `netflix-grid.tsx` to use a pure modulo approach for infinite carousel scrolling, replacing the previous reset logic. The starting position is also adjusted to 0 for simplified calculations.

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sebastjanartic 2025-08-29 16:02:31 +00:00
parent 008c0c1dac
commit 8ee1e0e4f6
1 changed files with 8 additions and 35 deletions
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43
client/src/components/netflix-grid.tsx
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@ -168,22 +168,9 @@ function CategoryRow({ category, onVideoClick }: CategoryRowProps) {
const newX = prev + speed;
const totalWidth = category.videos.length * videoWidth;
// True seamless infinite carousel - no visible jumps
// Keep moving until we're in valid range, then make tiny adjustment
let finalX = newX;
// If we've moved past the end of middle section, reset seamlessly
if (finalX <= -totalWidth * 2) {
// We're past the end, bring back to equivalent position in middle
finalX = finalX + totalWidth;
}
// If we've moved past the beginning of middle section, reset seamlessly
else if (finalX >= 0) {
// We're past the beginning, bring back to equivalent position in middle
finalX = finalX - totalWidth;
}
return finalX;
// Pure modulo approach - no resets, just mathematical wrapping
const normalizedX = ((newX % totalWidth) + totalWidth) % totalWidth;
return -normalizedX;
});
}, interval);
}
@ -206,22 +193,9 @@ function CategoryRow({ category, onVideoClick }: CategoryRowProps) {
const newX = prev + speed;
const totalWidth = category.videos.length * videoWidth;
// True seamless infinite carousel - no visible jumps
// Keep moving until we're in valid range, then make tiny adjustment
let finalX = newX;
// If we've moved past the end of middle section, reset seamlessly
if (finalX <= -totalWidth * 2) {
// We're past the end, bring back to equivalent position in middle
finalX = finalX + totalWidth;
}
// If we've moved past the beginning of middle section, reset seamlessly
else if (finalX >= 0) {
// We're past the beginning, bring back to equivalent position in middle
finalX = finalX - totalWidth;
}
return finalX;
// Pure modulo approach - no resets, just mathematical wrapping
const normalizedX = ((newX % totalWidth) + totalWidth) % totalWidth;
return -normalizedX;
});
}, 16); // Fixed interval - speed controlled by pixel movement only
};
@ -229,9 +203,8 @@ function CategoryRow({ category, onVideoClick }: CategoryRowProps) {
// Initialize with first video on the left side
useEffect(() => {
if (category.videos.length > 0) {
// Start in middle copy (segunda copia) so loop works in both directions
const totalWidth = category.videos.length * videoWidth;
setTranslateX(-totalWidth);
// Start at position 0 for simple modulo math
setTranslateX(0);
}
}, [category.videos.length]);