lq64 412ed986a9
Build & Test (NowChessSystems) TeamCity build finished
feat: NCS-11 50-move rule (#9)
Summary

  - Implements the FIDE 50-move draw rule: a player may claim a draw if no pawn move or capture has occurred in the last
   50 full moves (100 half-moves)
  - Draw is not automatic — the eligible player must claim it via a TUI menu shown at the start of their turn
  - halfMoveClock: Int is threaded through processMove and gameLoop; resets on pawn move, capture, or en passant;
  increments on all other moves

  Changes

  - GameController.scala: extended MoveResult.Moved and MoveResult.MovedInCheck with newHalfMoveClock: Int; added
  MoveResult.DrawClaimed; added halfMoveClock parameter to processMove and gameLoop; TUI menu shown when clock ≥ 100
  - Main.scala: initial gameLoop call passes halfMoveClock = 0
  - GameControllerTest.scala: updated all existing pattern matches; added 10 new tests covering clock reset, clock
  increment, draw claim, and TUI menu behaviour

  Test plan

  - processMove: 'draw' with halfMoveClock = 100 → DrawClaimed
  - processMove: 'draw' with halfMoveClock = 99 → InvalidFormat
  - Pawn move / capture / en passant → clock resets to 0
  - Quiet piece move → clock increments by 1
  - MovedInCheck carries updated clock
  - TUI menu appears when clock ≥ 100; option 1 claims draw, option 2 continues
  - No TUI menu when clock < 100
  - All 197 tests passing

Co-authored-by: LQ63 <lkhermann@web.de>
Reviewed-on: #9
Co-authored-by: Leon Hermann <lq@blackhole.local>
Co-committed-by: Leon Hermann <lq@blackhole.local>
2026-04-01 10:36:24 +02:00
2026-04-01 10:36:24 +02:00
2026-03-21 14:40:00 +01:00
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