One check per rule Cut 1 lands, each with a stated mutation that would
defeat it: mount direction follows the item's authored rotation and not
the hull's facing (ArcFollowsMountRotation), FiringArc is a full width so
the boundary sits at half of it (ArcBoundaryIsHalfWidth), the arc test is
planar per R7 (ArcIsPlanar), and a per-hardpoint override wins over the
default while an authored 0 still means "use the default" rather than a
zero-width arc (HardpointOverrideBeatsDefault).
CombatStateStepsHeadless is the cut's real deliverable: a Minion with a
target in range steps through two Zone.Update ticks without Combat.cs
throwing (the KeyNotFoundException this cut exists to unbreak), and the
fight actually decides to fire, not just avoids a crash.
Builds its own hull/catalog rather than reusing IffAndCombatTests'
private BuildWorld/NewShip (fixed to one hardpoint) -- and along the way,
surfaces three catalog-authoring gotchas any headless-combat fixture
needs: Mass defaults to 0 (NaNs UpdateTemperature via ThermalMass),
default temperature bounds [0,100] don't cover wherever the heat model
settles, and Entity._orderedEquipment is only ever populated by TryEquip
so an entity that never equips anything throws on its first Update.
docs/fire-control-cut.md, Cut 1.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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