Port upstream tracker overhaul into the modular tracker module. Adds
Npcs, Players, DungeonEntrances, Stairs, QuestLocations, and Portals
categories with collector functions, navigation, and auto-walk support.
Replaces CycleTrackerTargetKeyPressed with TrackerPageUp/PageDown/Home
key handlers that support Ctrl for category cycling and Shift for
auto-walk. Includes review fixes: nullopt guard in auto-walk, removal
of default switch clauses in favor of app_fatal, internal linkage for
non-public functions, multi-tile object approach, and distance-sorted
town dungeon entrances.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The variable is only used within tracker.cpp, so remove the unnecessary
extern declaration from the header and place it in the anonymous
namespace alongside the other file-local tracker state.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Move ~4,100 lines of accessibility code from diablo.cpp into 6 new
modules, reducing diablo.cpp from ~7,700 to ~3,660 lines.
New modules:
- controls/accessibility_keys: UI key handlers and guard functions
(IsPlayerDead, IsGameRunning, CanPlayerTakeAction, etc.)
- utils/walk_path_speech: BFS pathfinding, PosOk variants, walk
direction helpers, and path-to-speech formatting
- utils/accessibility_announcements: periodic announcements for low
HP warning sound, durability, boss health, monsters, doors
- controls/town_npc_nav: town NPC selection cycling and auto-walk
- utils/navigation_speech: exit/stairs/portal/unexplored speech and
keyboard walk key handlers
- controls/tracker: target category cycling, candidate finding,
pathfinding navigation, and auto-walk tracker
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hidwood