v1.0.0 "Sextant" — autonomous T2A client + observation frontend

First public release of uo-client — a from-scratch Ultima Online T2A
(protocol 2.0.7) client built as an automation/bot engine with a graphical
frontend that recreates the look of the original client. It targets the
reverse-engineered UO Demo server.

What works now

Protocol & networking

• Full 2.0.7 login → in-world handshake (nocrypt), Huffman-decompressed game
  stream, length-table framing
• Mobiles, items, stats/skills, speech & journal, light levels, war mode and
  death — handled and cached
• JSONL + console packet logging; --headless mode for a pure console client

Navigation bot

• A* pathfinding over real MUL data, run on a background thread (goto, follow)
• Predict-and-reconcile movement, door opening, and live avoidance of mobiles,
  dynamic items and dead-ends; stamina/fatigue handling
• Path lookahead with cheap local rerouting around newly-appeared obstacles

Renderer (the observation frontend)

• Software isometric view recreating the 2.0.7 client: land, statics and dynamic
  items in painter's-order
• Animated mobiles with equipment, hues, mounts and chair-seating, plus
  combat/death animation states
• Procedural night lighting with per-light coronas, a radar minimap, and a HUD
  (status bars, system log/journal, overhead text, chat, UO walk cursor)

Supervision controls

• Right-click to walk, arrow-key manual steps, war/peace toggle, minimap toggle,
  open-door, and in-window chat

Known limitations

• Combat reactions are a hook only (engage / flee / recall are TODO)
• Single backend — the UO Demo server (other shards are out of scope)
• Map 0 (Britannia) only

Requires

• Windows + MSVC (32-bit), built via scripts\build.bat
• Your own UO T2A *.mul data files (none are distributed)

Built entirely through LLM-driven development and reverse engineering
(Codex 5.5 + Claude Opus 4.7), continuously verified against the decompiled
client_2.0.7.exe.