python mudlib using telnetlib3
Jared Miller
a5053e10f2
Implement full save functionality for V3 z-machine: - Fixed QuetzalWriter._generate_anno_chunk() to return bytes - Added QuetzalWriter.generate_save_data() to produce IFF container - Updated QuetzalWriter.write() to use new method and binary mode - Added zmachine reference to ZCpu for QuetzalWriter access - Added _program_counter property to ZCpu for Quetzal access - Implemented op_save to call QuetzalWriter and filesystem - Updated tests for op_save (success, failure, IFF validation) - Added filesystem mock to MockUI for testing - Added _call_stack to MockStackManager for QuetzalWriter All tests pass. Save now generates valid IFF/FORM/IFZS data with IFhd, CMem, Stks, and ANNO chunks. |
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|---|---|---|
| .claude | ||
| content | ||
| docs | ||
| scripts | ||
| src/mudlib | ||
| tests | ||
| worlds/earth | ||
| .dockerignore | ||
| .gitignore | ||
| compose.yml | ||
| demo_terrain.py | ||
| Dockerfile | ||
| DREAMBOOK.md | ||
| justfile | ||
| mud.tin | ||
| pyproject.toml | ||
| README.md | ||
| uv.lock | ||
mudlib
A telnet MUD engine. No client needed — just telnet and you're in.
Built on telnetlib3, Python 3.12+, managed with uv.
Quickstart
uv sync
just run
Then connect: telnet localhost 6789
Commands
just check # lint + typecheck + test
just run # start the server
just debug # start with debug logging
just render # generate world map HTML
What's in here
src/mudlib/— the engine (commands, world, combat, rendering, storage)tests/— pytest testsworlds/— world definitions (yaml/toml)docs/— internal knowledge baseDREAMBOOK.md— vision and wild ideas
How it works
The world is a toroidal 2D grid of terrain tiles, not discrete rooms. Players see a viewport centered on their position. Terrain types have mechanics — shallow water slows you, mountains block you, forests hide you.
Combat is timing-based with telegraphed moves and cooldown management, not turn-based.
The server runs a tick-based async game loop alongside the telnet server. SQLite handles persistence. Session mode stacks filter what reaches the player depending on context (exploring, fighting, composing, solving puzzles).