Add world-level movement and seam rendering

main.lua

@@ -35,6 +35,9 @@ function love.load()
 	_initAccessibility()
 	gameWorld = World:new()
 	_initLevelEditor()
+	-- getAllAssets runs in _initLevelEditor; deserialize the world only after
+	-- its asset metadata exists, otherwise every non-player object is skipped.
+	gameWorld:loadLevels()
 
 	_initCanvases()
 
@@ -43,10 +46,14 @@ function love.load()
 	-- Resume the game: prefer the runtime autosave so the last saved position is
 	-- restored, falling back to the authored source level. Editor room-opens go
 	-- through their own (source-only) load path, so this only affects resume.
-	currentRoom = Room:new{
-		name = gameWorld.lastRoom or "start",
-		runtime = true
-	}
+	local initialRoom = gameWorld.lastRoom or "start"
+	-- Preserve the old resume behavior for the active room while the rest of the
+	-- world comes from the authored level files.
+	currentRoom = Room:new{name = initialRoom, runtime = true}
+	if gameWorld.levels[initialRoom] then
+		gameWorld.levels[initialRoom] = currentRoom
+		gameWorld:rebuildCollision()
+	end
 	gameWorld:setLastRoom(currentRoom.name)
 	setEditorRoomName(currentRoom.name)
 
@@ -69,7 +76,7 @@ function love.update(dt)
 		Input:stopMoveRepeat()
 	else
 		local repeatedMove = Input:handler(dt)
-		if repeatedMove and not Dialogue.isOpen() then currentRoom:movePlayer(repeatedMove) end
+		if repeatedMove and not Dialogue.isOpen() then gameWorld:movePlayer(currentRoom, repeatedMove) end
 	end
 	currentRoom:update(dt)
 
@@ -164,10 +171,10 @@ function love.keypressed(key)
 
 	if editorView ~= "world" and Input.isPlayerMove(key) then
 		Input:beginMove(key)
-		currentRoom:movePlayer(key)
+		gameWorld:movePlayer(currentRoom, key)
 	elseif editorView ~= "world" and Input.isPlayerSwitch(key) then
 		local c = Input.playerColor(key)
-		currentRoom:switchPlayerColor(c)
+		gameWorld:switchPlayerColor(currentRoom, c)
 	end
 
 	-- if key == "w" then