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fix(port): held_direction() polls the stick instead of reconstructing it
Reported by a human on a real controller: hold the left stick down, the
cursor moves one item and stops. The repeat never runs.

`held_direction()`'s own comment says "Polled at the DEVICE, never through
Input.is_action_pressed". It was not. The d-pad and keyboard branches polled;
the STICK branch read `_latched`, which is a reconstruction of the stick's
position from the event history.

That reconstruction is only as good as the last event seen. A stick held
still sends nothing, and one event reading below RELEASE -- a spring
settling, a deadzone-shaped value, a driver emitting a zero on focus change
-- clears it with no event afterwards to set it back. The port then believes
the stick is centred while the player is holding it, which is precisely the
symptom reported.

Now polls `Input.get_joy_axis()` against the game's own 0.61, which is what
the comment always meant. The latch stays as a fallback for INJECTED events,
so the script harness and verify-input keep testing something.

🔴 Every instrument here missed this because every instrument SUPPLIES the
input it measures: verify-input ticks repeat_due() directly, --script sends
InputEventAction which bypasses the input map, and the new --script=hold:
injects its own axis event. All three agreed with each other and none read a
device. Same shape as the 2026-09-01 report that opened gamepad.gd, one
level deeper, with the lesson already written at the top of that file.

So this adds the two things that would have caught it:

  --script=hold:down:2.0   hold one real axis deflection and log every move
  --input-probe            print what the devices report, on change

⚠️ The fix itself is NOT verified. It matches the symptom exactly and was
found by reading, but only a human holding a stick can confirm it, and the
probe exists so the answer is measured either way.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-13 14:27:09 +02:00
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