"use client"; import { useRef, useEffect, useCallback, RefObject } from 'react'; interface VariableProximityTextProps { label: string; fromFontVariationSettings?: string; toFontVariationSettings?: string; containerRef: RefObject; radius?: number; falloff?: 'linear' | 'exponential' | 'gaussian'; className?: string; style?: React.CSSProperties; } function VariableProximityText({ label, fromFontVariationSettings = "'wght' 400, 'opsz' 9", toFontVariationSettings = "'wght' 900, 'opsz' 40", containerRef, radius = 100, falloff = 'linear', className = '', style, }: VariableProximityTextProps) { const spanRef = useRef(null); const letterRefs = useRef<(HTMLSpanElement | null)[]>([]); const mousePos = useRef({ x: -1000, y: -1000 }); const rafId = useRef(0); // Parse font variation settings const parseSettings = useCallback((settingsStr: string) => { const map = new Map(); settingsStr.split(',').forEach((s) => { const trimmed = s.trim(); const match = trimmed.match(/['"]?(\w+)['"]?\s+([\d.]+)/); if (match) { map.set(match[1], parseFloat(match[2])); } }); return map; }, []); const fromSettings = parseSettings(fromFontVariationSettings); const toSettings = parseSettings(toFontVariationSettings); const calculateFalloff = useCallback( (distance: number) => { const norm = Math.min(Math.max(1 - distance / radius, 0), 1); switch (falloff) { case 'exponential': return norm ** 2; case 'gaussian': return Math.exp(-((distance / (radius / 2)) ** 2) / 2); case 'linear': default: return norm; } }, [radius, falloff], ); const updateLetters = useCallback(() => { if (!containerRef.current) return; const containerRect = containerRef.current.getBoundingClientRect(); letterRefs.current.forEach((letterEl) => { if (!letterEl) return; const rect = letterEl.getBoundingClientRect(); const letterCenterX = rect.left + rect.width / 2 - containerRect.left; const letterCenterY = rect.top + rect.height / 2 - containerRect.top; const dx = mousePos.current.x - letterCenterX; const dy = mousePos.current.y - letterCenterY; const distance = Math.sqrt(dx * dx + dy * dy); if (distance >= radius) { letterEl.style.fontVariationSettings = fromFontVariationSettings; } else { const falloffValue = calculateFalloff(distance); const newSettings: string[] = []; fromSettings.forEach((fromValue, axis) => { const toValue = toSettings.get(axis) ?? fromValue; const interpolated = fromValue + (toValue - fromValue) * falloffValue; newSettings.push(`'${axis}' ${interpolated}`); }); letterEl.style.fontVariationSettings = newSettings.join(', '); } }); rafId.current = requestAnimationFrame(updateLetters); }, [ containerRef, radius, fromFontVariationSettings, fromSettings, toSettings, calculateFalloff, ]); useEffect(() => { const handleMouseMove = (e: MouseEvent) => { if (!containerRef.current) return; const rect = containerRef.current.getBoundingClientRect(); mousePos.current = { x: e.clientX - rect.left, y: e.clientY - rect.top, }; }; const handleTouchMove = (e: TouchEvent) => { if (!containerRef.current) return; const rect = containerRef.current.getBoundingClientRect(); const touch = e.touches[0]; mousePos.current = { x: touch.clientX - rect.left, y: touch.clientY - rect.top, }; }; const handleMouseLeave = () => { mousePos.current = { x: -1000, y: -1000 }; }; window.addEventListener('mousemove', handleMouseMove); window.addEventListener('touchmove', handleTouchMove); containerRef.current?.addEventListener('mouseleave', handleMouseLeave); // Start animation loop rafId.current = requestAnimationFrame(updateLetters); return () => { window.removeEventListener('mousemove', handleMouseMove); window.removeEventListener('touchmove', handleTouchMove); containerRef.current?.removeEventListener('mouseleave', handleMouseLeave); cancelAnimationFrame(rafId.current); }; }, [containerRef, updateLetters]); // Split into words and letters const words = label.split(' '); let globalIndex = 0; return ( {words.map((word, wordIdx) => ( {word.split('').map((letter) => { const idx = globalIndex++; return ( { letterRefs.current[idx] = el; }} style={{ display: 'inline-block', fontVariationSettings: fromFontVariationSettings, }} > {letter} ); })} {wordIdx < words.length - 1 && ( )} ))} ); } const __inlined_default_0 = VariableProximityText; import { useRef } from 'react'; export default function VariableProximityExponential() { const containerRef = useRef(null); return ( <>

); }