P2 stone: stonecutter, cut stone, stone floors/walls/pillars/stairs/windows/doorway, hearth; wooden stairs, windows, posts, palisade and gate; stone support rules

scripts/player/survival.gd

@@ -73,6 +73,9 @@ func balanced_diet() -> bool:
 			return false
 	return true
 
+var stone_room := false      ## sheltered by mostly stone walls (P2): a little warmer
+const STONE_ROOM_WARMTH := 6.0
+
 var player: Node3D            ## the local player, or a server_player.gd on a server
 var world: Node3D
 var _stamina_wait := 0.0
@@ -92,6 +95,7 @@ func step(dt: float) -> void:
 		_shelter_left = 0.25
 		roofed = world.build.roofed_at(p)
 		sheltered = roofed and world.build.enclosure_at(p) >= 0.74
+		stone_room = sheltered and world.build.stone_walls_at(p) >= 0.5
 	# Rain soaks you unless there's a roof over your head.
 	if not roofed and world.weather.rain_at(p) > 0.25:
 		wet = WET_SECONDS
@@ -105,6 +109,8 @@ func step(dt: float) -> void:
 	rested = maxf(rested - dt, 0.0)
 	var wear: Dictionary = ItemDB.get_item(player.worn).get("wear", {}) if not player.worn.is_empty() else {}
 	var target: float = world.air_warmth(p, sheltered) + heat * 70.0 + float(wear.get("warmth", 0.0))
+	if stone_room:
+		target += STONE_ROOM_WARMTH
 	if wet > 0.0:
 		target -= 22.0 * float(wear.get("wet_chill", 1.0))
 		wet = maxf(wet - dt * (3.0 if heat > 0.3 else 1.0), 0.0)   # fires dry you off