{ "$schema": "https://ui.shadcn.com/schema/registry-item.json", "name": "tilted-card", "title": "Tilted Card", "author": "AlgorizeTech", "description": "A card that tilts in 3D toward the pointer with a moving glare highlight. Use it to make a single feature or product card feel tactile.", "dependencies": [], "registryDependencies": [ "utils" ], "files": [ { "path": "src/components/custom/blocks/TiltedCardBlock.tsx", "content": "\"use client\";\n\nimport { cn } from \"@/lib/utils\";\nimport React, { useEffect, useRef } from \"react\";\nimport { createSpringFollower, type SpringFollower } from \"./motion-curves\";\n\nexport interface TiltedCardProps extends React.HTMLAttributes {\n children: React.ReactNode;\n tiltIntensity?: number; // Maximum rotation in degrees (e.g., 15)\n glareOpacity?: number; // Maximum opacity of the glare effect (0 to 1)\n scaleOnHover?: number; // Scale factor when hovered (e.g., 1.05)\n initialScale?: number; // Starting scale factor (e.g., 1 or 1.05 for featured cards)\n innerClassName?: string;\n glareClassName?: string;\n showShadow?: boolean;\n}\n\n// Pointer tilt: every frame the tilt chases the pointer through this spring,\n// keeping its velocity when the pointer moves on — no animation library, just\n// the spring's equation of motion stepped on requestAnimationFrame.\nconst TILT_SPRING = { damping: 25, stiffness: 300, mass: 0.5, restDelta: 0.001, restSpeed: 0.01 };\n// Hover scale, same approach, so leaving mid-grow springs back from where it is.\nconst HOVER_SPRING = { stiffness: 300, damping: 20, mass: 1, restDelta: 0.005, restSpeed: 0.01 };\n\n/** Maps -1..1 onto `from..to`, clamped at both ends. */\nconst mapRange = (v: number, from: number, to: number) => {\n const p = Math.min(Math.max((v + 1) / 2, 0), 1);\n return from + (to - from) * p;\n};\n\nconst glareBackground = (x: number, y: number) =>\n `radial-gradient(circle at ${x}% ${y}%, var(--theme-color,var(--pricing-accent,var(--primary))), transparent 65%)`;\n\nexport const TiltedCard = React.forwardRef(\n (\n {\n children,\n className,\n tiltIntensity = 15,\n glareOpacity = 0.2,\n scaleOnHover = 1.02,\n initialScale = 1,\n innerClassName,\n glareClassName,\n showShadow = true,\n ...props\n },\n ref,\n ) => {\n const cardRef = useRef(null);\n const glareRef = useRef(null);\n\n React.useImperativeHandle(ref, () => cardRef.current as HTMLDivElement);\n\n // Read at paint time, so a changed prop applies from the next frame.\n const latest = useRef({ tiltIntensity, scaleOnHover, initialScale });\n latest.current = { tiltIntensity, scaleOnHover, initialScale };\n\n const springs = useRef<{\n x: SpringFollower;\n y: SpringFollower;\n scale: SpringFollower;\n } | null>(null);\n\n useEffect(() => {\n // Writes the card transform and the glare straight to the DOM, the way\n // motion values do — no React render per frame.\n const paint = () => {\n const s = springs.current;\n const card = cardRef.current;\n if (!s || !card) return;\n const tilt = latest.current.tiltIntensity;\n const x = s.x.get();\n const y = s.y.get();\n const scale = s.scale.get();\n const rotateX = mapRange(y, tilt, -tilt);\n const rotateY = mapRange(x, -tilt, tilt);\n const parts: string[] = [];\n if (scale !== 1) parts.push(`scale(${scale})`);\n if (rotateX !== 0) parts.push(`rotateX(${rotateX}deg)`);\n if (rotateY !== 0) parts.push(`rotateY(${rotateY}deg)`);\n card.style.transform = parts.length ? parts.join(\" \") : \"none\";\n if (glareRef.current) {\n glareRef.current.style.background = glareBackground(\n mapRange(x, 0, 100),\n mapRange(y, 0, 100),\n );\n }\n };\n\n springs.current = {\n x: createSpringFollower(0, paint, TILT_SPRING),\n y: createSpringFollower(0, paint, TILT_SPRING),\n scale: createSpringFollower(initialScale, paint, HOVER_SPRING),\n };\n\n paint();\n\n return () => {\n springs.current?.x.destroy();\n springs.current?.y.destroy();\n springs.current?.scale.destroy();\n springs.current = null;\n };\n }, [initialScale]);\n\n const handleMouseMove = (e: React.MouseEvent) => {\n if (!cardRef.current) return;\n const rect = cardRef.current.getBoundingClientRect();\n const x = (e.clientX - rect.left) / rect.width - 0.5;\n const y = (e.clientY - rect.top) / rect.height - 0.5;\n springs.current?.x.set(x * 2);\n springs.current?.y.set(y * 2);\n };\n\n const handleMouseLeave = () => {\n springs.current?.x.set(0);\n springs.current?.y.set(0);\n };\n\n // Hover scale follows a mouse or pen; a touch never counts as hovering.\n const handlePointerEnter = (e: React.PointerEvent) => {\n if (e.pointerType === \"touch\") return;\n springs.current?.scale.set(latest.current.scaleOnHover);\n };\n\n const handlePointerLeave = (e: React.PointerEvent) => {\n if (e.pointerType === \"touch\") return;\n springs.current?.scale.set(latest.current.initialScale);\n };\n\n return (\n \n \n \n {children}\n\n {/* Dynamic Theme Color Glare Overlay */}\n \n \n \n \n );\n },\n);\nTiltedCard.displayName = \"TiltedCard\";\n", "type": "registry:component", "target": "components/custom/blocks/TiltedCardBlock.tsx" }, { "path": "src/components/custom/blocks/motion-curves.ts", "content": "/**\n * Motion curves with no animation library behind them.\n *\n * The components here ship as CSS, GSAP or Motion builds that must move\n * identically, so the curves are computed once, from the same numbers, and\n * handed to whichever engine runs them:\n *\n * - `cubicBezier(x1, y1, x2, y2)` → an easing function (GSAP accepts any\n * `(progress) => value` as `ease`), exact for Motion's `ease: [..]` arrays\n * and for CSS `cubic-bezier()`.\n * - `spring({ stiffness, damping, mass })` → the analytic solution Motion\n * Motion uses, as an easing function plus the time it takes to settle, or\n * as a CSS `linear()` string for a fixed start and end.\n * - `createSpringFollower` → a value that chases a moving target through the\n * same spring every frame, like Motion's `useSpring`, for pointer-driven\n * motion that no fixed curve can describe.\n */\n\n// ---------------------------------------------------------------------------\n// Cubic bezier\n// ---------------------------------------------------------------------------\n\n/**\n * The CSS / Motion cubic-bezier as a function of progress. Newton-Raphson\n * with a bisection fallback, the same solver browsers use.\n */\nexport function cubicBezier(x1: number, y1: number, x2: number, y2: number) {\n if (x1 === y1 && x2 === y2) return (t: number) => t;\n\n const a = (p1: number, p2: number) => 1 - 3 * p2 + 3 * p1;\n const b = (p1: number, p2: number) => 3 * p2 - 6 * p1;\n const c = (p1: number) => 3 * p1;\n const at = (t: number, p1: number, p2: number) =>\n ((a(p1, p2) * t + b(p1, p2)) * t + c(p1)) * t;\n const slope = (t: number, p1: number, p2: number) =>\n 3 * a(p1, p2) * t * t + 2 * b(p1, p2) * t + c(p1);\n\n const solveX = (x: number) => {\n let t = x;\n for (let i = 0; i < 8; i++) {\n const s = slope(t, x1, x2);\n if (Math.abs(s) < 1e-6) break;\n const err = at(t, x1, x2) - x;\n if (Math.abs(err) < 1e-7) return t;\n t -= err / s;\n }\n let lo = 0;\n let hi = 1;\n t = x;\n for (let i = 0; i < 30 && hi - lo > 1e-7; i++) {\n const value = at(t, x1, x2);\n if (value < x) lo = t;\n else hi = t;\n t = (lo + hi) / 2;\n }\n return t;\n };\n\n return (x: number) => (x <= 0 ? 0 : x >= 1 ? 1 : at(solveX(x), y1, y2));\n}\n\n/** Motion's named eases, as the cubic-beziers they are. */\nexport const MOTION_EASE = {\n linear: [0, 0, 1, 1],\n easeIn: [0.42, 0, 1, 1],\n easeOut: [0, 0, 0.58, 1],\n easeInOut: [0.42, 0, 0.58, 1],\n circIn: [0.55, 0, 1, 0.45],\n circOut: [0.55, 0, 0.45, 1],\n circInOut: [0.85, 0, 0.15, 1],\n backIn: [0.31, 0.01, 0.66, -0.59],\n backOut: [0.33, 1.53, 0.69, 0.99],\n anticipate: [0.66, -0.56, 0.34, 1.35],\n} as const;\n\n/**\n * Motion's default layout transition (`layout` / `layoutId`):\n * `{ duration: 0.45, ease: [0.4, 0, 0.1, 1] }`.\n */\nexport const LAYOUT_TRANSITION = { duration: 0.45, ease: [0.4, 0, 0.1, 1] as const };\n\n// ---------------------------------------------------------------------------\n// Spring\n// ---------------------------------------------------------------------------\n\nexport interface SpringOptions {\n /** Motion default 100. */\n stiffness?: number;\n /** Motion default 10. */\n damping?: number;\n /** Motion default 1. */\n mass?: number;\n /** Starting velocity, in units of the whole distance per second. */\n velocity?: number;\n /** How close to the end counts as settled, as a fraction of the distance. */\n restDelta?: number;\n}\n\n/**\n * Normalised position (0 → 1) of a spring released from 0 towards 1, at time\n * `t` seconds. The closed-form solution Motion's `spring()` generator\n * uses for the under-, critically and over-damped cases.\n */\nexport function springAt(options: SpringOptions = {}) {\n const { stiffness = 100, damping = 10, mass = 1, velocity = 0 } = options;\n const zeta = damping / (2 * Math.sqrt(stiffness * mass));\n const omega0 = Math.sqrt(stiffness / mass);\n // Motion's convention: distance still to cover, velocity toward it negated.\n const delta = 1;\n const v0 = -velocity;\n\n if (zeta < 1) {\n const omegaD = omega0 * Math.sqrt(1 - zeta * zeta);\n return (t: number) => {\n const envelope = Math.exp(-zeta * omega0 * t);\n return (\n 1 -\n envelope *\n (((v0 + zeta * omega0 * delta) / omegaD) * Math.sin(omegaD * t) +\n delta * Math.cos(omegaD * t))\n );\n };\n }\n if (zeta === 1) {\n return (t: number) => 1 - Math.exp(-omega0 * t) * (delta + (v0 + omega0 * delta) * t);\n }\n const omegaD = omega0 * Math.sqrt(zeta * zeta - 1);\n return (t: number) => {\n const envelope = Math.exp(-zeta * omega0 * t);\n const freq = Math.min(omegaD * t, 300);\n return (\n 1 -\n (envelope *\n ((v0 + zeta * omega0 * delta) * Math.sinh(freq) + omegaD * delta * Math.cosh(freq))) /\n omegaD\n );\n };\n}\n\n/** Seconds until the spring stays within `restDelta` of its end. */\nexport function springDuration(options: SpringOptions = {}) {\n const at = springAt(options);\n const restDelta = options.restDelta ?? 0.001;\n const step = 1 / 240;\n let lastOutside = 0;\n for (let t = 0; t <= 10; t += step) {\n if (Math.abs(1 - at(t)) > restDelta) lastOutside = t;\n else if (t - lastOutside > 0.1) break;\n }\n return Math.max(lastOutside + step, step);\n}\n\n/**\n * A spring as a duration and an easing function over it — what GSAP takes:\n *\n * const { duration, ease } = springEase({ stiffness: 300, damping: 20 });\n * gsap.to(el, { y: 0, duration, ease });\n *\n * Exact for a fixed start and end; a spring that has to react mid-flight to a\n * new target needs `createSpringFollower` instead.\n */\nexport function springEase(options: SpringOptions = {}) {\n const duration = springDuration(options);\n const at = springAt(options);\n return {\n duration,\n ease: (progress: number) => (progress >= 1 ? 1 : at(progress * duration)),\n };\n}\n\n/**\n * A spring as a CSS `linear()` easing and its duration in ms, for\n * `transition` / `animation` with a fixed start and end.\n *\n * const { easing, duration } = springLinear({ stiffness: 400, damping: 30 });\n * el.style.transition = `transform ${duration}ms ${easing}`;\n */\nexport function springLinear(options: SpringOptions = {}, pointsPerSecond = 60) {\n const duration = springDuration(options);\n const at = springAt(options);\n const count = Math.max(Math.ceil(duration * pointsPerSecond), 8);\n const points: string[] = [];\n for (let i = 0; i <= count; i++) {\n const t = (i / count) * duration;\n points.push(String(Math.round((i === count ? 1 : at(t)) * 10000) / 10000));\n }\n return { easing: `linear(${points.join(\", \")})`, duration: Math.round(duration * 1000) };\n}\n\n// ---------------------------------------------------------------------------\n// Spring follower (useSpring equivalent)\n// ---------------------------------------------------------------------------\n\n/** Something that calls back once per frame with the time since the last, in ms. */\nexport interface FrameTicker {\n add: (callback: (deltaMs: number) => void) => () => void;\n}\n\n/** requestAnimationFrame as a ticker — the library-free default. */\nexport const rafTicker: FrameTicker = {\n add(callback) {\n let last = performance.now();\n let frame = requestAnimationFrame(function tick(now) {\n callback(now - last);\n last = now;\n frame = requestAnimationFrame(tick);\n });\n return () => cancelAnimationFrame(frame);\n },\n};\n\nexport interface SpringFollower {\n /** Chase a new target from wherever the value is now, keeping its velocity. */\n set: (target: number) => void;\n /** Move to a value instantly, with no motion. */\n jump: (value: number) => void;\n get: () => number;\n destroy: () => void;\n}\n\n/**\n * A value that follows its target through a spring, integrating the same\n * equation of motion Motion's `useSpring` solves — so a pointer-driven spring\n * reads the same in every build. Runs only while moving; `onUpdate` receives\n * each new value.\n */\nexport function createSpringFollower(\n initial: number,\n onUpdate: (value: number) => void,\n options: SpringOptions & { restSpeed?: number; ticker?: FrameTicker } = {},\n): SpringFollower {\n const { stiffness = 100, damping = 10, mass = 1, ticker = rafTicker } = options;\n const restDelta = options.restDelta ?? 0.01;\n const restSpeed = options.restSpeed ?? 0.01;\n let value = initial;\n let target = initial;\n let velocity = 0;\n let stop: (() => void) | null = null;\n\n const step = (deltaMs: number) => {\n // Fixed 1ms sub-steps keep the integration stable for stiff springs and\n // independent of the frame rate.\n const steps = Math.min(Math.max(Math.round(deltaMs), 1), 250);\n for (let i = 0; i < steps; i++) {\n const force = -stiffness * (value - target) - damping * velocity;\n velocity += (force / mass) * 0.001;\n value += velocity * 0.001;\n }\n if (Math.abs(target - value) < restDelta && Math.abs(velocity) < restSpeed) {\n value = target;\n velocity = 0;\n stop?.();\n stop = null;\n }\n onUpdate(value);\n };\n\n return {\n set(next) {\n target = next;\n if (!stop && value !== target) stop = ticker.add(step);\n },\n jump(next) {\n stop?.();\n stop = null;\n value = target = next;\n velocity = 0;\n onUpdate(value);\n },\n get: () => value,\n destroy() {\n stop?.();\n stop = null;\n },\n };\n}\n", "type": "registry:component", "target": "components/custom/blocks/motion-curves.ts" } ], "docs": "Named export: TiltedCard. Wraps arbitrary children; tune `tiltIntensity`, `glareOpacity` and `scaleOnHover`. Pointer-driven, so it is inert on touch — keep the content readable without the effect.", "categories": [ "media", "marketing" ], "type": "registry:component" }