Ten queries that read nothing but FactoryState become free functions in
FactoryQueries.h; the BuildingSystem methods stay as one-line forwards, so no
existing caller moves yet.
That lets the AI path drop its dependency on the system entirely. AiSystem,
SalvagerSystem, DeliverScrapEvaluator and DeliverScrapExecutor took a
BuildingSystem& purely to call findBuilding, findNearestBuilding and
deliverScrapToSalvageBay — all three are state-pure — so they now take
FactoryState& and say what they actually read. Four forward declarations of
BuildingSystem go with them.
No facade: the queries are plain free functions over the data. A facade was
considered to spare the ~180 UI call sites, but the AI needed only the data and
would have been given GameConfig it has no use for.
isProductionBuildingType moves to BuildingType.h beside isAutoRecipeBuildingType
and isBeltSubsystemType rather than being copied into the new file.
Verified with a golden-checksum capture before and after — all four sample ticks
identical.
Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YHcUerKAZKWNvSKJxYKbnG
Four of the five file-local helpers in BuildingSystem.cpp had duplicates
elsewhere: isAutoRecipeBuildingType and isBeltSubsystemType were re-spelled as
isAutoRecipeBuilding and isBeltLike in SelectedBuildingPanel.cpp, and
outputBodyTile was copied verbatim as portBodyTile in GameWorldView.cpp. Same
predicates, different names, so a change to one would silently not reach the
others.
The two BuildingType predicates move to BuildingType.h, which already hosts the
free functions over that enum and is already included by both lib and ui. The
port geometry moves to a new PortGeometry.h; inputBodyTile has no duplicate but
is outputBodyTile's counterpart and belongs beside it — the sim moves items
across the port edge and the renderer draws the virtual belt there, so the two
must agree on which tile a port owns.
inputLaneEntryFree stays file-local: single use, and tied to BeltItemSlot rather
than to building types or port geometry.
Verified the six moved bodies are character-identical to their originals.
Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YHcUerKAZKWNvSKJxYKbnG
