import { forwardRef , useEffect , useRef } from 'react' ; import { addEffect } from '@react-three/fiber' ; import type { SVGProps } from 'react' ; import { useStore , mutation } from '../../store' ; type BackgroundProps = Pick < SVGProps < SVGStopElement > , 'offset' > ; const Background = forwardRef < SVGStopElement , BackgroundProps > ( ( { offset } , ref ) : JSX . Element => ( < svg className = "speed-background" width = { 289 } height = { 55 } viewBox = "0 0 289 55" fill = "none" xmlns = "http://www.w3.org/2000/svg" > < defs > < linearGradient id = "progress" x1 = "1" y1 = "0" x2 = "0" y2 = "0" > < stop id = "stop1" offset = { offset } ref = { ref } stopColor = "#1B3049" / > < stop id = "stop2" stopColor = "#3EB4C8" / > < /linearGradient> < /defs> < path fillRule = "evenodd" clipRule = "evenodd" d = "M0 40c175.256-2.308 227.867-13.823 289-40v55H0V40z" fill = "url(#progress)" / > < /svg>)); const Foreground = ( ) : JSX . Element => ( < svg className = "speed-foreground" width = { 289 } height = { 55 } viewBox = "0 0 289 55" fill = "none" xmlns = "http://www.w3.org/2000/svg" > < path fillRule = "evenodd" clipRule = "evenodd" d = "M0 40c175.256-2.308 227.867-13.823 289-40v55H0V40zm7.5 9.5v-5h9v5h-9zm24 0h-8v-5h8v5zm7-5v5h9v-5h-9zm16 0v5h9v-5h-9zm16-1v6h8v-6h-8zm16 0v6h8v-6h-8zm24 6h-9v-7h9v7zm15 0h-8v-8h8v8zm16 0h-9v-10h9v10zm16 0h-9v-11h9v11zm15 0h-9v-13l9-.5v13.5zm16 0h-9v-15l9-1v16zm15 0h-9v-17l9-1v18zm16 0h-10v-19l10-1v20zm16 0h-10v-21l10-2v23zm15.5 0h-9.5v-25L251 22v27.5zm16 0h-10v-29l10-3.5v32.5zm16 0h-10V15l10-4v38.5z" fill = "#132237" / > < /svg>); const getOffsetFactory = ( maxSpeed ) => ( ) => `${ Math . max ( 1 - mutation . speed / maxSpeed , 0 ) . toFixed ( 2 ) }` ; export const Gauge = ( ) => { const ref = useRef < SVGStopElement > ( null ) ; const maxSpeed = useStore ( ( state ) => state . vehicleConfig . maxSpeed ) ; const getOffset = getOffsetFactory ( maxSpeed ) ; let offset = getOffset ( ) ; useEffect ( ( ) => addEffect ( ( ) => { if ( ! ref . current ) return ; offset = getOffset ( ) ; if ( ref . current . getAttribute ( 'offset' ) !== offset ) { ref . current . setAttribute ( 'offset' , offset ) ; } } ) ) ; return ( < div className = "speed-gauge" > < Background offset = { offset } ref = { ref } / > < Foreground /> < /div>); } ;