Created
April 16, 2020 21:59
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Roullete Spinner made with React Hooks
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const spinWheel = useCallback(() => { | |
// Receives the winner prop and search for his position in the spinner bets array | |
const order = [8, 1, 14, 2, 13, 3, 12, 4, 0, 11, 5, 10, 6, 9, 7]; | |
const position = order.indexOf(winner); | |
// Determine position where to land | |
const rows = 12; | |
const card = 80 + 2 * 2; | |
let landingPosition = rows * 15 * card + position * card; | |
const randomize = Math.floor(Math.random() * 85) - 85 / 2; | |
landingPosition += randomize; | |
const axes = { | |
x: Math.floor(Math.random() * 50) / 100, | |
y: Math.floor(Math.random() * 20) / 100, | |
}; | |
wheelRef.current.style.transitionTimingFunction = `all 6000ms cubic-bezier(0,${axes.x},${axes.y},1)`; | |
wheelRef.current.style.transitionDuration = `6s`; | |
wheelRef.current.style.transform = `translate3d(-${landingPosition}px, 0px, 0px)`; | |
setTimeout(() => { | |
wheelRef.current.style.transitionTimingFunction = ''; | |
wheelRef.current.style.transitionDuration = ''; | |
const resetTo = -(position * card + randomize); | |
wheelRef.current.style.transform = `translate3d(${resetTo}px, 0px, 0px)`; | |
}, 7000); | |
}, [winner]); | |
useEffect(() => { | |
if (rolling) { | |
spinWheel(); | |
} | |
}, [rolling, spinWheel]); | |
const rows = useMemo(() => { | |
const result = []; | |
const row = order => ( | |
<Row key={order}> | |
{spinner.map((ticket, key) => ( | |
<Counter key={String(key)} id={`ticket-${ticket}`} ticket={ticket}> | |
{ticket} | |
</Counter> | |
))} | |
</Row> | |
); | |
for (let x = 0; x < 29; x += 1) { | |
result.push(row(x)); | |
} | |
return result; | |
}, []); |
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