Syplheed-Reborn/docs/re/flight-controls-runtime.md

In-flight control mapping — measured, not assumed

Status: ✅ for the weapon bindings (ammo counters move), 🟡 for the rest (HUD observation only). Probes: tools/re-capture/fire_probe.sh (hold each input, photograph the ammo counters) and lock_probe.sh (tap each, watch the reticle). Stage 02, in flight. Evidence: captures/fire-probe-ammo-counters.png.

input	effect	confidence
RB	Nose gun. NOSE BM 06000 → 05956 in a 4 s hold ≈ 11 rounds/s; HEAT bar rises	✅
Y	Main mount (missiles). MAIN MPM 00300 → 00299 per tap	✅
RT / LT	Throttle up / brake, a persistent setting (488 → 1510 → 174 u/s)	✅ (earlier session)
d-pad	Tactical map overlay (grid with contact blips) — not target cycling	🟡
LB, X, B, A, LS, RS	No change to either ammo counter	✅ (as "not a weapon")

Targeting appears to be automatic — WRONG, corrected below

Superseded. This section concluded targeting was automatic because no input cycled a target. It is wrong: the HUD tutorial states target select is Ⓐ pressed twice, and every sweep here tapped once. Kept because the reasoning is a useful warning — a probe that never performs the action will "prove" the action does not exist. The rest of the section's measurements stand.

No single press cycled a target. The green TARGET marker is already present in idle frames with nothing pressed, which I read as the game selecting for us.

That fits the measurements end to end:

• the guns fire fine (11 rounds/s) but the kill counters read 0000 after five gun-only runs → we shoot and miss;
• guided missiles (Missile_P, Power 200, GuidanceType 5) got the first kills, WARPLANES 0002, but only 2 per 98 launches;
• the pilot's own log shows aim error wandering between ~10° and ~40° for most of a pass.

At the time I concluded the bottleneck was aim dwell. Partly right — target commitment did take kills 2 → 9 — but the larger cause was simply that no target was ever selected, so the guided missiles had nothing to guide to.

The game's own action list (from the OPTIONS key-config screen)

Decoded from dat/GP_OPTIONS.pak (po_keys_btn* sprites) — this is the authoritative set of bindable in-flight actions, straight off the disc, no probing required:

#	Action	Our mapping
1	Aircraft Control	LX/LY ✅
2	View Point Control	RX/RY (unused by the pilot)
3 / 4	Left / Right Yaw Control	— (separate from pitch/roll!)
5 / 6	Accelerate / Decelerate	RT / LT ✅
7	Use Main Weapon	Y ✅
8	Use Nose Weapon	RB ✅
9	Special Move	❔
10	Maneuver	❔
11	Resupply	❔
12	Change Target	❔ — this is the target-select the loop needs
13	Change Main Weapon	❔ (would reach ASMissile, Power 5000)
14	Padlock Mode Toggle	❔ — the aim-dwell mechanism
15	Radar Map Toggle	d-pad 🟡 (matches the observed map overlay)

Two entries change the plan outright:

• Change Target exists, so target selection is an input after all. The earlier probe swept LB/X/B/A/LS/RS and found no ammo change — consistent with those being exactly these non-weapon actions. The probe simply watched the wrong indicator.
• Padlock Mode Toggle is a view/aim lock onto the selected target. That is the aim-dwell problem solved by a game mechanic rather than by tuning a PD controller — and it is why a human player can hold a contact long enough to lock a missile.

Also note CONTROL SETTINGS carries a Control Type preset plus Yaw / Pitch / Roll Sensitivity and a separate Throttle option: the mapping is not fixed, and the craft's response to a given stick deflection is configurable. Any calibration done against one profile (e.g. the ctrl_probe.py throttle numbers) is only valid for the save's current settings.

What the tutorials state outright

tutorial_capture.sh <index> <secs> <tag> plays one lesson and photographs it. Captions use a typewriter effect, so crop 900x125+160+40 from many frames to read a full sentence. Lessons that require the player to do something stall (BASIC CONTROLS sits on "Go to the box on your screen" forever with nobody flying); the expository ones run on their own.

• HEADS-UP DISPLAY (index 1): "Enemies are displayed with red markers and allies with blue markers." · "Targeting an enemy displays an Armor Gauge…" · "Press Ⓐ twice to target the enemy closest to the center of the screen."
• ADVANCED CONTROLS (index 5): B+LS = Side Roll / 180 Degree Turn / Level Off · B+A together = face the target · LT+RT together = "sets your fighter's speed to that of the target… works well when you are trying to get behind an enemy. Once behind an enemy, this also helps you attack them."

Change Target is Ⓐ pressed TWICE — a double tap. That is why every button sweep in this document found nothing and why I wrongly concluded targeting was automatic: each sweep tapped once. It also explains the missiles — GuidanceType 5 needs the game's selection, and the loop had never made one, so 98 launches guided to nothing.

Notes for the reimplementation

• Two independent weapons with separate ammo pools and separate HUD counters: NOSE BM (gun, 6000) and MAIN MPM (missiles, 300).
• The gun has a HEAT bar that fills while firing — a sustained-fire limit the reimplementation needs; its cap and cool-down rate are not measured yet.
• The tactical map is a full-screen overlay bound to the d-pad and does not pause flight (the craft kept taking fire with it open).