subgame

A terminal-first realtime Type VII u-boat simulation prototype.

Current Prototype

This first pass provides:

• Realtime navigation and movement model
• Diesel/electric propulsion with fuel and battery simulation
• Ballast + dive planes depth model with hull stress at unsafe depth
• Hydrophone contact generation and tracking
• Contact kinematics (course/speed world movement) and visual confirmation checks
• Crew-driven TDC solution that improves over time on selected targets
• Tube management and torpedo firing workflow
• Intercept course plotting for selected target
• Event log for watchstanding feedback
• Bubble Tea TUI command console layout

Run

go run .

Controls

• Left / Right: Rudder
• C: Center rudder
• Up / Down: Throttle
• W / S: Dive planes
• B / N: Ballast flood / blow
• O: Order periscope depth (auto depth control to 13m)
• K: Toggle hold current depth (submerged)
• [ / ] or Tab: Cycle selected target
• T: Select nearest target
• I: Plot and engage intercept course to selected target
• Z: Select next tube
• F: Flood/vent selected tube
• R: Reload selected tube
• Space: Fire selected tube
• H: Hydrophone on/off
• P: Periscope raise/lower
• E: Toggle diesel/electric (surface only)
• 1 / 2 / 4: Time scale
• PgUp / PgDn: Scroll event log 1 line
• Shift+PgUp / Shift+PgDn: Scroll event log half page
• X: Crash dive
• Q: Quit