Building a multiplayer game with Flutter and Serverpod
summary
Builds a multiplayer Agar-like game called Bacterial Boom using Flutter for the client and Serverpod for the server, with full source on GitHub and a playable build at bacterialboom.com (tested with up to five simultaneous players). Uses Serverpod streaming with session-bound endpoints and message channels, YAML serialization and Postgres ORM, a game loop ticking at 10Hz, NPCs, and a quad-tree for collision checks (quad tree collision) to avoid O(n^2) checks. Bandwidth drops from ~100KB/s to ~20KB/s by sending diffs, and visuals use noise-based blob edges.
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chapters (9)
- 0:00Introduction and overview
- 2:49Serverpod basics
- 8:03Real-time communication
- 11:59Game data structures
- 15:32Collision detection
- 20:10Game loop and state updates
- 25:06Flutter client implementation
- 28:21Noise functions for drawing
- 31:30Next steps and resources
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