idk even anymore

room.lua

@@ -423,6 +423,10 @@ function Room:tick()
 	for _, door in pairs(self.doors) do
 		door:setColors(setDoorColors)
 	end
+	-- Door:setColors can change collision from unmoveable to none. Rebuild once
+	-- more after that state change so an open-looking door is passable on the
+	-- very next input, rather than leaving the previous tick's solid cell here.
+	self:createCollideablesMatrix()
 	self:nextRoomCheck()
 end
 
@@ -653,7 +657,10 @@ function Room:attemptPlace(name, props, mouseX, mouseY, color)
 end
 
 function Room:load(name)
-	local room = readFromSource("rooms/" .. name .. ".sav")
+	-- Runtime rooms are game state: let LÖVE resolve them from its save
+	-- directory, where Room:save writes autosaves.  Source files remain the
+	-- shipped/editor versions until the editor explicitly saves one.
+	local room = love.filesystem.read("rooms/" .. name .. ".sav")
 	if not room then
 		-- no save yet: start with a blank room to build in the editor
 		print("no save for '" .. name .. "', starting blank")
@@ -672,10 +679,19 @@ function Room:save()
 	local name = self.name or "test"
 	local room = TSerial.pack(self:serialize(), nil, true)
 
-	local success = writeToSource("rooms/" .. name .. ".sav", room)
+	local success = love.filesystem.write("rooms/" .. name .. ".sav", room)
 	if not success then error "great job u fool" end
 end
 
+-- This is intentionally separate from Room:save.  It is the editor's explicit
+-- "write this level into the project" action; gameplay autosaves must never
+-- call it.
+function Room:saveToSource(name)
+	name = name or self.name or "test"
+	local room = TSerial.pack(self:serialize(), nil, true)
+	return writeToSource("rooms/" .. name .. ".sav", room)
+end
+
 function Room:serialize()
 	local objects = {}
 
@@ -734,14 +750,18 @@ function nextRoom(pos)
 		newPos.y = gridHeight
 	end
 
+	local currentName = currentRoom.name
+	local nextName = gameWorld and currentName and gameWorld:getNeighbor(currentName, exit)
 	currentRoom:save()
 
-	currentRoom = Room:new{ 
-		-- name = "test",
+	-- Missing map neighbours intentionally wrap back into the room just exited.
+	-- A placed neighbour gets the same carried player state at its opposite edge.
+	currentRoom = Room:new{
+		name = nextName or currentName,
 		player = {
 			x = newPos.x, y = newPos.y, activeColors = currentRoom:getActiveColors()
 		}
 	}
+	if currentRoom.name then setEditorRoomName(currentRoom.name) end
 
 end
-