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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| import React, { useRef, useEffect, useState } from 'react' | ||
| import clsx from 'clsx' | ||
| import { motion, useAnimation } from 'motion/react' | ||
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| const ScratchToReveal = ({ width, height, minScratchPercentage = 50, onComplete, children, className }) => { | ||
| const canvasRef = useRef(null) | ||
| const [isScratching, setIsScratching] = useState(false) | ||
| const [isComplete, setIsComplete] = useState(false) // New state to track completion | ||
|
|
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| const controls = useAnimation() | ||
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| useEffect(() => { | ||
| const canvas = canvasRef.current | ||
| const ctx = canvas?.getContext('2d') | ||
| if (canvas && ctx) { | ||
| const gradient = ctx.createLinearGradient(0, 0, canvas.width, canvas.height) | ||
| gradient.addColorStop(0, '#A97CF8') | ||
| gradient.addColorStop(0.5, '#F38CB8') | ||
| gradient.addColorStop(1, '#FDCC92') | ||
| ctx.fillStyle = gradient | ||
| ctx.fillRect(0, 0, canvas.width, canvas.height) | ||
| } | ||
| }, []) | ||
|
|
||
| useEffect(() => { | ||
| const handleDocumentMouseMove = (event) => { | ||
| if (!isScratching) return | ||
| scratch(event.clientX, event.clientY) | ||
| } | ||
|
|
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| const handleDocumentTouchMove = (event) => { | ||
| if (!isScratching) return | ||
| const touch = event.touches[0] | ||
| scratch(touch.clientX, touch.clientY) | ||
| } | ||
|
|
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| const handleDocumentMouseUp = () => { | ||
| setIsScratching(false) | ||
| checkCompletion() | ||
| } | ||
|
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| const handleDocumentTouchEnd = () => { | ||
| setIsScratching(false) | ||
| checkCompletion() | ||
| } | ||
|
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| document.addEventListener('mousedown', handleDocumentMouseMove) | ||
| document.addEventListener('mousemove', handleDocumentMouseMove) | ||
| document.addEventListener('touchstart', handleDocumentTouchMove) | ||
| document.addEventListener('touchmove', handleDocumentTouchMove) | ||
| document.addEventListener('mouseup', handleDocumentMouseUp) | ||
| document.addEventListener('touchend', handleDocumentTouchEnd) | ||
| document.addEventListener('touchcancel', handleDocumentTouchEnd) | ||
|
|
||
| return () => { | ||
| document.removeEventListener('mousedown', handleDocumentMouseMove) | ||
| document.removeEventListener('mousemove', handleDocumentMouseMove) | ||
| document.removeEventListener('touchstart', handleDocumentTouchMove) | ||
| document.removeEventListener('touchmove', handleDocumentTouchMove) | ||
| document.removeEventListener('mouseup', handleDocumentMouseUp) | ||
| document.removeEventListener('touchend', handleDocumentTouchEnd) | ||
| document.removeEventListener('touchcancel', handleDocumentTouchEnd) | ||
| } | ||
| }, [isScratching]) | ||
|
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| const handleMouseDown = () => setIsScratching(true) | ||
|
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| const handleTouchStart = () => setIsScratching(true) | ||
|
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| const scratch = (clientX, clientY) => { | ||
| const canvas = canvasRef.current | ||
| const ctx = canvas?.getContext('2d') | ||
| if (canvas && ctx) { | ||
| const rect = canvas.getBoundingClientRect() | ||
| const x = clientX - rect.left + 16 | ||
| const y = clientY - rect.top + 16 | ||
| ctx.globalCompositeOperation = 'destination-out' | ||
| ctx.beginPath() | ||
| ctx.arc(x, y, 30, 0, Math.PI * 2) | ||
| ctx.fill() | ||
| } | ||
| } | ||
|
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| const checkCompletion = () => { | ||
| if (isComplete) return // Check if already completed | ||
|
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| const canvas = canvasRef.current | ||
| const ctx = canvas?.getContext('2d') | ||
| if (canvas && ctx) { | ||
| const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height) | ||
| const pixels = imageData.data | ||
| const totalPixels = pixels.length / 4 | ||
| let clearPixels = 0 | ||
|
|
||
| for (let i = 3; i < pixels.length; i += 4) { | ||
| if (pixels[i] === 0) clearPixels++ | ||
| } | ||
|
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| const percentage = (clearPixels / totalPixels) * 100 | ||
|
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| if (percentage >= minScratchPercentage) { | ||
| setIsComplete(true) | ||
| ctx.clearRect(0, 0, canvas.width, canvas.height) | ||
| startAnimation() | ||
| if (onComplete) { | ||
| onComplete() | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| const startAnimation = () => { | ||
| controls.start({ | ||
| scale: [1, 1.5, 1], | ||
| rotate: [0, 10, -10, 10, -10, 0], | ||
| transition: { duration: 0.5 }, | ||
| }) | ||
| } | ||
|
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||
| return ( | ||
| <motion.div | ||
| className={clsx('relative select-none', className)} | ||
| style={{ | ||
| width, | ||
| height, | ||
| cursor: | ||
| "url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgdmlld0JveD0iMCAwIDMyIDMyIj4KICA8Y2lyY2xlIGN4PSIxNiIgY3k9IjE2IiByPSIxNSIgc3R5bGU9ImZpbGw6I2ZmZjtzdHJva2U6IzAwMDtzdHJva2Utd2lkdGg6MXB4OyIgLz4KPC9zdmc+'), auto", | ||
| }} | ||
| animate={controls} | ||
| > | ||
| <canvas | ||
| ref={canvasRef} | ||
| width={width} | ||
| height={height} | ||
| className="absolute top-0 left-0" | ||
| onMouseDown={handleMouseDown} | ||
| onTouchStart={handleTouchStart} | ||
| ></canvas> | ||
| {children} | ||
| </motion.div> | ||
| ) | ||
| } | ||
|
|
||
| export default ScratchToReveal | ||
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