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import React, { useEffect, useRef } from 'react'; import { cn } from '@/lib/utils'; interface Cluster { cx: number; cy: number; radius: number; count: number; } interface Particle { x: number; y: number; baseOpacity: number; phase: number; } interface AuroraDotsProps { particleColor?: string; particleSize?: number; glowIntensity?: number; hoverGlowIntensity?: number; animationSpeed?: number; hoverRadius?: number; interactive?: boolean; clusters?: Cluster[]; className?: string; children?: React.ReactNode; } export function AuroraDots({ particleColor = '34, 211, 238', particleSize = 2, glowIntensity = 0.3, hoverGlowIntensity = 0.5, animationSpeed = 3, hoverRadius = 10, interactive = true, clusters = [ { cx: 20, cy: 15, radius: 8, count: 45 }, { cx: 45, cy: 12, radius: 6, count: 35 }, { cx: 70, cy: 18, radius: 10, count: 60 }, { cx: 85, cy: 14, radius: 7, count: 40 }, { cx: 15, cy: 35, radius: 9, count: 50 }, { cx: 35, cy: 40, radius: 7, count: 42 }, { cx: 55, cy: 38, radius: 8, count: 48 }, { cx: 75, cy: 35, radius: 6, count: 38 }, { cx: 88, cy: 40, radius: 7, count: 40 }, { cx: 10, cy: 60, radius: 8, count: 45 }, { cx: 30, cy: 58, radius: 9, count: 52 }, { cx: 50, cy: 62, radius: 7, count: 42 }, { cx: 68, cy: 60, radius: 10, count: 58 }, { cx: 85, cy: 65, radius: 8, count: 46 }, { cx: 18, cy: 82, radius: 7, count: 40 }, { cx: 42, cy: 85, radius: 8, count: 48 }, { cx: 65, cy: 80, radius: 9, count: 50 }, { cx: 82, cy: 88, radius: 6, count: 35 }, ], className, children, }: AuroraDotsProps) { const canvasRef = useRef(null); const containerRef = useRef(null); const particlesRef = useRef([]); const mouseRef = useRef({ x: -1000, y: -1000 }); const animationRef = useRef(undefined); const autoHoverPosRef = useRef({ x: 0.5, y: 0.5, angle: 0 }); const isVisibleRef = useRef(true); useEffect(() => { const canvas = canvasRef.current; const container = containerRef.current; if (!canvas || !container) return; const ctx = canvas.getContext('2d'); if (!ctx) return; const observer = new IntersectionObserver( ([entry]) => { isVisibleRef.current = entry.isIntersecting; if (entry.isIntersecting && !animationRef.current) { animate(); } }, { threshold: 0 }, ); observer.observe(container); const resizeCanvas = () => { const rect = container.getBoundingClientRect(); canvas.width = rect.width; canvas.height = rect.height; }; resizeCanvas(); window.addEventListener('resize', resizeCanvas); const particles: Particle[] = []; clusters.forEach((cluster) => { for (let i = 0; i < cluster.count; i++) { const angle = (i / cluster.count) * Math.PI * 2; const radiusVariation = Math.random() * cluster.radius; const angleOffset = (Math.random() - 0.5) * 0.5; const x = (cluster.cx + Math.cos(angle + angleOffset) * radiusVariation) / 100; const y = (cluster.cy + Math.sin(angle + angleOffset) * radiusVariation) / 100; particles.push({ x, y, baseOpacity: 0.2 + Math.random() * 0.1, phase: Math.random() * Math.PI * 2, }); } }); particlesRef.current = particles; const [r, g, b] = particleColor.split(',').map(Number); const startTime = Date.now(); const fpsInterval = 1000 / 30; let lastFrameTime = Date.now(); const animate = () => { if (!isVisibleRef.current) { animationRef.current = undefined; return; } const now = Date.now(); const elapsed = now - lastFrameTime; if (elapsed > fpsInterval) { lastFrameTime = now - (elapsed % fpsInterval); const totalElapsed = (now - startTime) / 1000; autoHoverPosRef.current.angle += 0.01; const radius = 0.3; autoHoverPosRef.current.x = 0.5 + Math.cos(autoHoverPosRef.current.angle) * radius; autoHoverPosRef.current.y = 0.5 + Math.sin(autoHoverPosRef.current.angle) * radius; ctx.clearRect(0, 0, canvas.width, canvas.height); particles.forEach((particle) => { const px = particle.x * canvas.width; const py = particle.y * canvas.height; const wave = Math.sin(totalElapsed / animationSpeed + particle.phase); let opacity = particle.baseOpacity + wave * glowIntensity + glowIntensity; let size = particleSize; let blur = particleSize * 3; let glowAlpha = glowIntensity; const autoHoverX = autoHoverPosRef.current.x * canvas.width; const autoHoverY = autoHoverPosRef.current.y * canvas.height; const autoDx = px - autoHoverX; const autoDy = py - autoHoverY; const autoDistance = Math.sqrt(autoDx * autoDx + autoDy * autoDy); const autoNormalizedDistance = autoDistance / ((canvas.width * hoverRadius) / 100); if (autoNormalizedDistance < 1) { const factor = 1 - autoNormalizedDistance; opacity = Math.min(1, opacity + factor * 0.6); size *= 1 + factor * 0.5; blur = size * 5; glowAlpha = Math.min(1, glowAlpha + factor * hoverGlowIntensity); } if (interactive) { const dx = px - mouseRef.current.x; const dy = py - mouseRef.current.y; const distance = Math.sqrt(dx * dx + dy * dy); const normalizedDistance = distance / ((canvas.width * hoverRadius) / 100); if (normalizedDistance < 1) { const factor = 1 - normalizedDistance; opacity = Math.min(1, opacity + factor * 0.5); size *= 1 + factor * 0.4; blur = size * 5; glowAlpha = hoverGlowIntensity; } } ctx.save(); ctx.shadowBlur = blur; ctx.shadowColor = `rgba(${r}, ${g}, ${b}, ${glowAlpha})`; ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${Math.min( 1, Math.max(0, opacity), )})`; ctx.beginPath(); ctx.arc(px, py, size / 2, 0, Math.PI * 2); ctx.fill(); ctx.restore(); }); } animationRef.current = requestAnimationFrame(animate); }; animate(); return () => { window.removeEventListener('resize', resizeCanvas); observer.disconnect(); if (animationRef.current) { cancelAnimationFrame(animationRef.current); } }; }, [ clusters, particleColor, particleSize, glowIntensity, hoverGlowIntensity, animationSpeed, hoverRadius, interactive, ]); const handleMouseMove = (e: React.MouseEvent) => { if (!interactive || !containerRef.current) return; const rect = containerRef.current.getBoundingClientRect(); mouseRef.current = { x: e.clientX - rect.left, y: e.clientY - rect.top, }; }; const handleMouseLeave = () => { mouseRef.current = { x: -1000, y: -1000 }; }; return (

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Aurora Dots

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