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<!DOCTYPE html> |
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<html> |
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<head> |
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<title>Spin N Win</title> |
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<link rel="stylesheet" href="https://huggingface.co/spaces/DMTuit/psy4/resolve/main/css/main.css"> |
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<script src="https://huggingface.co/spaces/DMTuit/psy4/resolve/main/js/main.js"></script> |
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<style> |
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* { |
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margin: 0; |
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padding: 0; |
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box-sizing: border-box; |
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} |
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body { |
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height: 100vh; |
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display: grid; |
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place-items: center; |
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} |
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#wheelOfFortune { |
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display: inline-block; |
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position: relative; |
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overflow: hidden; |
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} |
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#wheel { |
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display: block; |
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} |
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#spin { |
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font: 1.5em/0 sans-serif; |
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user-select: none; |
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cursor: pointer; |
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display: flex; |
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justify-content: center; |
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align-items: center; |
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position: absolute; |
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top: 50%; |
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left: 50%; |
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width: 30%; |
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height: 30%; |
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margin: -15%; |
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background: #fff; |
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color: #fff; |
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box-shadow: 0 0 0 8px currentColor, 0 0px 15px 5px rgba(0, 0, 0, 0.6); |
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border-radius: 50%; |
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transition: 0.8s; |
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} |
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#spin::after { |
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content: ''; |
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position: absolute; |
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top: -17px; |
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border: 10px solid transparent; |
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border-bottom-color: currentColor; |
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border-top: none; |
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} |
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</style> |
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</head> |
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<body> |
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<div id="wheelOfFortune"> |
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<canvas id="wheel" width="300" height="300"></canvas> |
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<div id="spin">Пуск</div> |
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</div> |
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<script> |
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const sectors = [ |
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{ color: '#f82', label: 'Stack', probability: 10 }, |
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{ color: '#0bf', label: '10', probability: 20 }, |
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{ color: '#fb0', label: '200', probability: 15 }, |
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{ color: '#0fb', label: '50', probability: 20 }, |
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{ color: '#b0f', label: '100', probability: 15 }, |
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{ color: '#f0b', label: '5', probability: 10 }, |
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{ color: '#bf0', label: '500', probability: 10 } |
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] |
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const rand = (m, M) => Math.random() * (M - m) + m |
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const tot = sectors.length |
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const spinEl = document.querySelector('#spin') |
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const ctx = document.querySelector('#wheel').getContext('2d') |
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const dia = ctx.canvas.width |
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const rad = dia / 2 |
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const PI = Math.PI |
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const TAU = 2 * PI |
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const arc = TAU / sectors.length |
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const friction = 0.991 |
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let angVel = 0 |
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let ang = 0 |
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const getIndex = () => Math.floor(tot - (ang / TAU) * tot) % tot |
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function drawSector(sector, i) { |
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const ang = arc * i |
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ctx.save() |
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ctx.beginPath() |
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ctx.fillStyle = sector.color |
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ctx.moveTo(rad, rad) |
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ctx.arc(rad, rad, rad, ang, ang + arc) |
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ctx.lineTo(rad, rad) |
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ctx.fill() |
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ctx.translate(rad, rad) |
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ctx.rotate(ang + arc / 2) |
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ctx.textAlign = 'right' |
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ctx.fillStyle = '#fff' |
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ctx.font = 'bold 21px sans-serif' |
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ctx.fillText(sector.label, rad - 10, 10) |
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ctx.restore() |
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} |
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function rotate() { |
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const sector = sectors[getIndex()] |
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ctx.canvas.style.transform = `rotate(${ang - PI / 2}rad)` |
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spinEl.textContent = !angVel ? 'SPIN' : sector.label |
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spinEl.style.background = sector.color |
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} |
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function frame() { |
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if (!angVel) return |
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angVel *= friction |
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if (angVel < 0.002) { |
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angVel = 0 |
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const sector = sectors[getIndex()] |
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localStorage.setItem('hasSpun', 'true') |
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console.log('Result:', sector.label) |
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} |
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ang += angVel |
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ang %= TAU |
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rotate() |
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} |
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function engine() { |
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frame() |
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requestAnimationFrame(engine) |
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} |
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function init() { |
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if (!localStorage.getItem('hasSpun')) { |
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localStorage.setItem('hasSpun', 'false') |
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} |
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sectors.forEach(drawSector) |
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rotate() |
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engine() |
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spinEl.addEventListener('click', () => { |
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if (localStorage.getItem('hasSpun') === 'false') { |
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localStorage.setItem('hasSpun', 'true') |
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angVel = rand(0.25, 0.45) |
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spinWheel() |
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} else { |
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console.log('You have already spun the wheel.') |
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} |
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}) |
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} |
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function spinWheel() { |
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const probabilities = sectors.map(sector => sector.probability) |
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const totalProbability = probabilities.reduce((a, b) => a + b, 0) |
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const random = Math.random() * totalProbability |
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let cumulativeProbability = 0 |
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for (let i = 0; i < sectors.length; i++) { |
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cumulativeProbability += sectors[i].probability |
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if (random < cumulativeProbability) { |
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ang = (i + 0.5) * arc |
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break |
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} |
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} |
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} |
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init() |
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</script> |
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</body> |
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</html> |
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