Changelog

1.1.0

• Smelters, kilns and blast furnaces place on floors. Same three placement flags as the fire pieces, on a different set of prefabs; the Smelter component is the selector. Freeing the flags alone was not enough - WearNTear.UpdateWear deals damage = 100f when m_noSupportWear is set and support is short, which is a full health bar in one tick, and a stone piece needs 100 support where wood tops out at 100 and loses a share per link. m_noSupportWear is cleared on those prefabs too, so the game stops demolishing a smelter the moment it stands on a plank. New SmeltersOnFloors setting.
• Floors take no rain damage. A deck, a jetty or a bridge has nothing overhead, fails the roof check forever and rots forever. The rain branch of WearNTear.UpdateWear only bites when sixty seconds have passed on m_rainTimer, so that timer is held at now for floor pieces and the branch never reaches its damage line. Clearing the prefab's m_noRoofWear would have been simpler and wrong: the same flag drives the wet sheen, and a floor that cannot rot should still darken when it rains. Support collapse, snow, ash and fire wetness all behave as before. New FloorsDontDecay setting, and this one is read live - no restart.

1.0.1

• Hearths and braziers now place on floors. 1.0.0 picked fire pieces by the Fireplace component and cleared notOnWood and groundOnly; those two carry groundPiece instead, which fails the same heightmap test and returns before the other checks are even reached. All three flags are cleared now, and a piece counts as a fire if it has a Fireplace or its comfort group is Fire.
• iron_grate was listed as sheltering the room below. It never did — grates do not carry the game's Floor usage flag, so the mod does not touch them. Documentation fix only, no behaviour change.

1.0.0

First release.

Floor pieces no longer count as leaky, so a floor overhead shelters the room below — rain damage, fire wetness and the shelter status all follow. Fireplace pieces have notOnWood and groundOnly cleared, so fires place on floor tiles instead of only bare terrain. Each feature has its own config switch.