"use client"; import { useId, useMemo } from "react"; import { motion } from "framer-motion"; import { cn } from "@/lib/utils"; /* -------------------------------------------------------------------------- */ /* Geometry, equirectangular projection over an 800 x 400 canvas */ /* -------------------------------------------------------------------------- */ const MAP_W = 800; const MAP_H = 400; const projX = (lon: number): number => ((lon + 180) / 360) * MAP_W; const projY = (lat: number): number => ((90 - lat) / 180) * MAP_H; const round = (n: number): number => Math.round(n * 100) / 100; /** * Hand-traced, generalised continent outlines in [lon, lat]. Point-in-polygon * against these masks a uniform pixel grid down to a dotted world silhouette, * no bitmap, no external data, fully deterministic. */ const CONTINENTS: number[][][] = [ // North America [ [-165, 62], [-156, 71], [-140, 70], [-125, 70], [-108, 68], [-95, 69], [-82, 73], [-70, 66], [-60, 58], [-56, 51], [-64, 48], [-70, 42], [-75, 37], [-80, 31], [-80, 25], [-90, 29], [-97, 26], [-98, 20], [-95, 16], [-105, 20], [-112, 24], [-117, 32], [-124, 42], [-128, 52], [-140, 59], ], // South America [ [-77, 8], [-72, 11], [-62, 10], [-52, 5], [-50, 0], [-44, -2], [-35, -6], [-39, -13], [-40, -20], [-48, -25], [-55, -34], [-62, -40], [-66, -45], [-69, -52], [-74, -50], [-73, -43], [-71, -33], [-70, -23], [-71, -18], [-77, -12], [-81, -5], [-80, -2], [-78, 3], ], // Africa [ [-6, 35], [2, 37], [10, 34], [20, 32], [28, 31], [32, 31], [34, 29], [37, 20], [43, 11], [51, 11], [48, 4], [42, -2], [40, -10], [40, -16], [36, -20], [33, -26], [28, -33], [20, -35], [15, -28], [12, -20], [11, -15], [9, -5], [9, 3], [3, 5], [-4, 5], [-8, 4], [-13, 8], [-16, 13], [-17, 19], [-16, 24], [-13, 28], [-10, 31], ], // Eurasia (Europe + Asia are one landmass) [ [-9, 43], [-9, 37], [-6, 36], [-2, 36], [3, 42], [6, 43], [9, 44], [13, 45], [16, 43], [19, 42], [23, 40], [27, 40], [30, 37], [36, 36], [35, 33], [34, 30], [40, 17], [43, 13], [52, 15], [57, 22], [56, 26], [61, 25], [66, 25], [68, 23], [72, 20], [74, 15], [77, 8], [80, 13], [83, 17], [87, 21], [91, 22], [95, 17], [98, 12], [102, 6], [104, 1], [106, 10], [109, 13], [108, 18], [110, 21], [113, 22], [117, 23], [121, 29], [121, 37], [122, 40], [126, 40], [129, 35], [130, 42], [135, 44], [140, 46], [142, 53], [150, 59], [156, 61], [162, 60], [170, 61], [178, 65], [180, 66], [180, 71], [160, 72], [140, 73], [120, 74], [100, 76], [80, 74], [68, 73], [60, 71], [55, 69], [48, 68], [42, 67], [38, 66], [33, 69], [28, 71], [22, 70], [16, 68], [12, 65], [10, 63], [7, 63], [5, 61], [6, 58], [8, 57], [10, 54], [6, 53], [3, 51], [1, 50], [-2, 48], [-2, 44], ], // Australia [ [114, -22], [114, -30], [118, -34], [125, -33], [132, -32], [138, -35], [144, -38], [147, -38], [150, -37], [153, -28], [146, -19], [142, -11], [136, -12], [130, -12], [128, -15], [122, -18], ], // Greenland [ [-45, 60], [-52, 64], [-50, 70], [-40, 76], [-25, 78], [-18, 73], [-22, 68], [-30, 64], [-42, 60], ], // Japan [ [131, 31], [134, 34], [137, 35], [140, 36], [141, 39], [142, 42], [141, 45], [144, 44], [141, 38], [137, 34], [134, 33], ], // Great Britain [[-5, 50], [-3, 53], [-5, 55], [-3, 58], [-1, 57], [0, 53], [1, 51], [-2, 50]], // Ireland [[-10, 52], [-10, 55], [-6, 55], [-6, 52]], // Iceland [[-24, 64], [-22, 66], [-18, 66], [-14, 65], [-18, 64], [-22, 63]], // Madagascar [[43, -16], [46, -13], [50, -15], [50, -20], [47, -25], [45, -22], [43, -19]], // New Zealand [ [166, -46], [168, -46], [171, -43], [174, -41], [178, -38], [177, -40], [173, -42], [169, -44], ], // New Guinea [[131, -1], [138, -2], [144, -4], [147, -8], [142, -10], [136, -9], [132, -6]], // Sumatra [[95, 5], [99, 3], [104, -2], [106, -6], [102, -4], [97, 1]], // Borneo [[109, 2], [114, 4], [118, 2], [117, -3], [111, -3], [109, -1]], // Java [[105, -6], [112, -8], [114, -8], [110, -7], [106, -6]], // Sulawesi [[119, 1], [121, -1], [123, -3], [125, -5], [122, -2], [120, 1]], // Philippines [[121, 6], [125, 8], [126, 13], [123, 16], [120, 13], [120, 8]], // Sri Lanka [[80, 6], [82, 7], [82, 9], [80, 9]], // Cuba / Greater Antilles [[-84, 22], [-80, 23], [-74, 20], [-78, 20], [-83, 21]], // Tasmania [[145, -41], [148, -41], [148, -43], [145, -43]], ]; const PROJECTED: number[][][] = CONTINENTS.map((poly) => poly.map(([lon, lat]) => [projX(lon), projY(lat)]) ); function pointInPolygon(x: number, y: number, poly: number[][]): boolean { let inside = false; for (let i = 0, j = poly.length - 1; i < poly.length; j = i++) { const xi = poly[i][0]; const yi = poly[i][1]; const xj = poly[j][0]; const yj = poly[j][1]; const intersects = yi > y !== yj > y && x < ((xj - xi) * (y - yi)) / (yj - yi) + xi; if (intersects) inside = !inside; } return inside; } interface Dot { x: number; y: number; r: number; o: number; } /** Uniform pixel grid, masked to land, computed once at module load. */ const LAND_DOTS: Dot[] = (() => { const dots: Dot[] = []; const step = 10; for (let x = step; x < MAP_W; x += step) { for (let y = 22; y < 336; y += step) { let land = false; for (let p = 0; p < PROJECTED.length; p++) { if (pointInPolygon(x, y, PROJECTED[p])) { land = true; break; } } if (!land) continue; const seed = Math.abs(Math.sin(x * 12.9898 + y * 78.233)); dots.push({ x, y, r: round(0.85 + seed * 0.7), o: Math.round((0.16 + seed * 0.46) * 1000) / 1000, }); } } return dots; })(); /* -------------------------------------------------------------------------- */ /* Cities & connections */ /* -------------------------------------------------------------------------- */ export interface City { lon: number; lat: number; label: string; } export interface Connection { from: City; to: City; /** Stagger in seconds so the network pulses in sequence rather than in sync. */ delay?: number; } const CITY = { sf: { lon: -122, lat: 37, label: "San Francisco" }, ny: { lon: -74, lat: 40, label: "New York" }, london: { lon: -0.1, lat: 51, label: "London" }, saoPaulo: { lon: -46, lat: -23, label: "São Paulo" }, lagos: { lon: 3, lat: 6, label: "Lagos" }, dubai: { lon: 55, lat: 25, label: "Dubai" }, singapore: { lon: 103, lat: 1.3, label: "Singapore" }, tokyo: { lon: 139, lat: 35, label: "Tokyo" }, sydney: { lon: 151, lat: -33, label: "Sydney" }, } satisfies Record; const DEFAULT_CONNECTIONS: Connection[] = [ { from: CITY.sf, to: CITY.ny, delay: 0 }, { from: CITY.ny, to: CITY.london, delay: 0.5 }, { from: CITY.london, to: CITY.dubai, delay: 1 }, { from: CITY.dubai, to: CITY.singapore, delay: 1.5 }, { from: CITY.singapore, to: CITY.tokyo, delay: 2 }, { from: CITY.tokyo, to: CITY.sf, delay: 2.5 }, { from: CITY.singapore, to: CITY.sydney, delay: 1.2 }, { from: CITY.saoPaulo, to: CITY.lagos, delay: 0.8 }, ]; interface Pt { x: number; y: number; } function quadLength(a: Pt, cp: Pt, b: Pt): number { let len = 0; let px = a.x; let py = a.y; const segs = 26; for (let i = 1; i <= segs; i++) { const t = i / segs; const mt = 1 - t; const x = mt * mt * a.x + 2 * mt * t * cp.x + t * t * b.x; const y = mt * mt * a.y + 2 * mt * t * cp.y + t * t * b.y; len += Math.hypot(x - px, y - py); px = x; py = y; } return len; } interface Arc { d: string; dash: number; gap: number; len: number; delay: number; } function buildArc(from: City, to: City, delay: number): Arc { const a: Pt = { x: projX(from.lon), y: projY(from.lat) }; const b: Pt = { x: projX(to.lon), y: projY(to.lat) }; const mx = (a.x + b.x) / 2; const my = (a.y + b.y) / 2; const dx = b.x - a.x; const dy = b.y - a.y; const dist = Math.hypot(dx, dy) || 1; // Bow every arc toward the pole (upward) for a great-circle feel. let nx = -dy / dist; let ny = dx / dist; if (ny > 0) { nx = -nx; ny = -ny; } const curve = dist * 0.22; const cp: Pt = { x: mx + nx * curve, y: my + ny * curve }; const len = quadLength(a, cp, b); return { d: `M ${round(a.x)} ${round(a.y)} Q ${round(cp.x)} ${round(cp.y)} ${round( b.x )} ${round(b.y)}`, dash: Math.round(len * 0.15), gap: Math.round(len * 1.4), len: Math.round(len), delay, }; } /* -------------------------------------------------------------------------- */ /* Component */ /* -------------------------------------------------------------------------- */ export interface WorldMapProps { className?: string; connections?: Connection[]; showLabels?: boolean; } export function WorldMap({ className, connections = DEFAULT_CONNECTIONS, showLabels = false, }: WorldMapProps) { const uid = useId().replace(/[:]/g, ""); const blurId = `wm-blur-${uid}`; const arcs = useMemo( () => connections.map((c, i) => buildArc(c.from, c.to, c.delay ?? i * 0.4) ), [connections] ); const cities = useMemo(() => { const map = new Map(); for (const c of connections) { map.set(`${c.from.lon},${c.from.lat}`, c.from); map.set(`${c.to.lon},${c.to.lat}`, c.to); } return [...map.values()].map((c, i) => ({ city: c, x: round(projX(c.lon)), y: round(projY(c.lat)), delay: i * 0.28, })); }, [connections]); return (

); } /* -------------------------------------------------------------------------- */ /* Demo */ /* -------------------------------------------------------------------------- */ export default function Demo() { return (

{/* Ambient brand glows */}

{/* Legibility scrim on the left */}

{/* Heading */}

Live network

Traffic routed in real time

Anycast edge across nine regions, every request lands on the closest node, then fans out worldwide.

{/* Stats */}

{[ { value: "42ms", label: "median" }, { value: "9", label: "regions" }, { value: "1.2M", label: "req / s" }, ].map((s) => (

{s.value}

{s.label}

))}

); }

World Map

Traffic routed in real time