Files
Tarokka/components/Sheen.tsx
2025-07-03 21:05:04 -04:00

86 lines
2.1 KiB
TypeScript

import { useEffect, useRef, useState } from 'react';
import { useAppContext } from '@/app/AppContext';
const tiltSheen = (sheen: HTMLDivElement, x: number, y: number) => {
const rect = sheen.getBoundingClientRect();
const sheenX = rect.width - x * rect.width;
const sheenY = rect.height - y * rect.height;
sheen.style.opacity = '1';
sheen.style.backgroundImage = `
radial-gradient(
circle at
${sheenX}px ${sheenY}px,
#ffffff44,
#0000000f
)
`;
};
export default function Sheen({ cardIndex, className }: { cardIndex: number; className?: string }) {
const sheenRef = useRef<HTMLDivElement>(null);
const [untilt, setUntilt] = useState(false);
const {
gameData,
settings: { tilt, remoteTilt },
tilt: localTilts,
} = useAppContext();
useEffect(() => {
const sheen = sheenRef.current;
if (!sheen) return;
if (tilt) {
const percentX = localTilts[cardIndex]?.percentX || -1;
const percentY = localTilts[cardIndex]?.percentY || -1;
const percentages = remoteTilt
? [...gameData.tilts[cardIndex], { percentX, percentY }]
: [{ percentX, percentY }];
const { totalX, totalY, count } = percentages
.filter(({ percentX, percentY }) => percentX >= 0 && percentY >= 0)
.reduce(
({ totalX, totalY, count }, { percentX, percentY }) => ({
totalX: totalX + percentX,
totalY: totalY + percentY,
count: ++count,
}),
{ totalX: 0, totalY: 0, count: 0 },
);
if (count && totalX >= 0 && totalY >= 0) {
const x = totalX / count;
const y = totalY / count;
tiltSheen(sheen, x, y);
setUntilt(false);
} else {
setUntilt(true);
}
} else {
setUntilt(true);
}
}, [tilt, localTilts, gameData]);
useEffect(() => {
const sheen = sheenRef.current;
if (!sheen || !untilt) return;
sheen.style.opacity = '0';
}, [untilt]);
return (
<div
ref={sheenRef}
className={`
absolute inset-0
rounded-lg pointer-events-none
transition-opacity duration-500
bg-gradient-to-tr from-transparent via-white/20 to-transparent mix-blend-screen opacity-0
${className}
`}
/>
);
}