[renatorgr]

Requested by Renato · project thread

Stacked on #228: merge #228 first. This branch has #228's commit under its own, so until #228 is merged the diff shows both.

What changed

Since official AgOpenGPS-Official#816 the U-turn reads the turn line (the fence moved in by the U-turn distance), and so does the snake's landing check (IsPathLandable: 20 m of the next pass inside the area at this end). With the operator's headland on and the sections off in it, a pass lying in the headland band has that room on the turn line and nothing to work: unpainted, it is still to do, so the snake turned onto it.

On a tester's field (simulator, beta 2be8132, 14 Nov 10:12) the snake drove 13L, with 12 m of crop at its far end, and 15L, with none, in a corner of the headland, and only then went back to 12L.

Now a pass the snake turns onto (the order's next pass, or a nearest open one from TurnOntoNearestOpenPass) must also have the landing room inside the headland line when the headland is on and Tool.IsHeadlandSectionControl is set (SnakeLandable). Without a headland, or with the sections on in it, nothing changes: the turn line alone decides, as before.

Tests (SnakeOpenPassTests):

• new: with the headland on, the order's next pass lying in the headland band is passed over and the next one in the crop is turned onto;
• new: without the headland, or with the sections on in it, the same pass in the band is turned onto.

CLAUDE.md's snake bullet says so. Fork only.

Related issue

Follows #228 (nearest open pass before a far order pass), from the same day's simulator reports.

Pre-submit checklist

• dotnet build succeeds with no errors
• dotnet test passes: the U-turn, snake and headland tests (1758 passed); the full suite runs in CI
• Tested on: Linux (cloud), plus a replay of the tester's field

Screenshots

Not a UI change.

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