HUD System

Build the in-game HUD layer of an action game — the engineering, the design craft, the accessibility, and the world-space elements. References: Genshin Impact / Granblue Fantasy: Relink (party action-RPG HUDs), God of War 2018 / Horizon (dynamic minimalist HUDs), Dead Space / Metroid Prime (diegetic HUD), TLOU2 (accessibility). Excluded (separate skills): minimap/world map (minimap-worldmap), full-screen menus (menu-ui-manager).

The architecture rule

The HUD is a read-only, event-driven consumer. Gameplay never knows the HUD exists; the HUD never polls per frame and never writes gameplay state.

gameplay state → events → view-model layer → widgets
                (push)     (formats data)     (pure presentation)