tiennm99 6099f1135a refactor(api): typed draw errors, honest statuses, and a slimmer guess envelope
A dry pool and an upstream failure were told apart by matching error
message prefixes in eight places; they are now DryPoolError and
UpstreamError, and /api/new-game answers 404 with the coverage message
for the first and 502 for the second instead of 200 for both. The draw
stops retrying after eight seconds and the client gives up at fifteen.

/api/guess returns gameResult alone: the whole leaderboard and distance
objects, four legacy rank fields and a message duplicated it and had no
reader. The leaderboard module drops its pre-tree aliases and the
submitScore primitive with no production caller; tests award points
through submitRoundScore, the path production runs. /api/leaderboard
returns the rows alone. The unused debug POST on new-game, zScore,
isDay and indexedProvinces go with them.

Fixes two live bugs: GameClient dropped the partial flag, so a
half-credited round showed the success message; and the map centre was
state seeded to Ho Chi Minh, painting one frame there on every region.
The e2e stubs carry every key the routes emit and a test now asserts it.
2026-09-21 16:21:14 +07:00
2026-09-03 15:17:42 +07:00
2025-08-07 13:08:06 +07:00
2025-08-07 12:27:13 +07:00
2025-08-04 23:11:11 +07:00
2025-08-07 12:27:13 +07:00

VNGeoGuessr

A GeoGuessr clone focused on Vietnamese locations with accurate boundary detection and anti-cheat security. Play geolocation guessing games across a region tree covering the whole country using real street-level imagery.

🎮 Features

  • Region Tree: Whole country, 9 provinces, 75 districts — including Da Lat (Lam Dong) and Duc Hoa (Long An)
  • 360° Street View: Mapillary panoramic images with PhotoSphere viewer
  • Anti-Cheat Security: Server-side session management prevents cheating
  • Distance-Based Scoring: 0-5 point system based on accuracy
  • Persistent Leaderboards: Redis-powered top 200 player rankings
  • Accurate Boundaries: Nominatim API + Turf.js for precise city detection

📚 Documentation

For detailed information about this project, see the documentation in /docs/:

🚀 Getting Started

Prerequisites

  • Node.js 24+
  • npm 11+
  • Redis server (sessions and leaderboards)
  • Postgres database (panorama index; Neon in production)

Development

# Install dependencies
npm install

# Start development server
npm run dev

# Build for production
npm run build

# Start production server
npm start

# Run linting
npm run lint

Open http://localhost:3000 to play the game.

🏗️ Built With

  • Frontend: Next.js 16 + React 19 + Tailwind CSS 4
  • Street View: Mapillary API + PhotoSphere Viewer
  • Maps: Leaflet + OpenStreetMap
  • Geographic Data: Nominatim API + Turf.js
  • Storage: Neon Postgres (panorama index) + Upstash Redis (leaderboards and game sessions)
  • UI Components: shadcn/ui

🎯 How to Play

  1. Enter your username
  2. Pick a region from the country/province/district tree
  3. View the 360° street panorama
  4. Place your guess on the map
  5. Earn points based on accuracy (closer = more points)
  6. Compete for the top 200 leaderboard spots!

📋 Development Notes

  • JavaScript Only: No TypeScript files
  • Individual Parameters: Functions use separate parameters, not object destructuring
  • Server-Side Security: Game coordinates never sent to client
  • Session Management: Automatic cleanup after 30 minutes

🤝 Contributing

This project follows specific development guidelines. Please read the Development Guidelines before contributing.

S
Description
GeoGuessr clone for Vietnamese locations — Mapillary panoramas, Turf.js boundaries, Upstash REST leaderboards
Readme Apache-2.0
14 MiB
0 Stars 1 Watchers 0 Forks
Languages
JavaScript 98.2%
CSS 1.8%