Room1 = {}
Room1.ObjectA = { Name = "Object A", Active = false, }
Room1.ObjectB = { Name = "Object B", }

Room2 = {}
Room2.ObjectA = { Name = "Another Object A", }
Room2.DummyObject = { Name = "Object", timesClicked = 0 }

Room3 = {}
Room3.OneObject = { Name = "Only one object here.", }

Room1 = {}
Room1.ObjectA = { Name = "Object A", Active = false, }
Room1.ObjectB = { Name = "Object B", }

Room2 = {}
Room2.ObjectA = { Name = "Another Object A", }
Room2.DummyObject = { Name = "Object", timesClicked = 0 }

Room3 = {}
Room3.OneObject = { Name = "Only one object here.", }

function Room1:OnEnter()
  -- Do stuff when you enter this room
  ...
end

function Room2:OnEnter()
  -- Do stuff when you enter this second room
  ...
end

function Room3:OnEnter()
  -- Do stuff when you enter this third room
  ...
end

function Room1.ObjectA:OnClick()
  ...
  -- loads of code to execute when you click on this object...
  ...
end
function Room1.ObjectB:OnClick()
  ...
  -- loads of code to execute when you click on this object...
  ...
end

function Room2.ObjectA:OnClick()
  ...
  -- loads of code to execute when you click on this object...
  ...
end

function Room2.DummyObject:OnClick()
  ...
  -- loads of code to execute when you click on this object...
  ...
end

function Room3.OneObject:OnClick()
  ...
  -- loads of code to execute when you click on this object...
  ...
end

---- this file is Room1.lua--local room = {  ObjectA = {    Name = "Object A", Active = false  },  ObjectB = {    Name = "Object B"  }}return room

---------------------------------------------------------------------------------- Room.lua--------------------------------------------------------------------------------lightclass 'Room'function Room:draw(camRect)	for i,layer in ipairs(self.map) do		local pCamRect = ZRect(camRect:x() * layer.p,camRect:y() * layer.p,camRect:width(),camRect:height())				gl.PushMatrix()		gl.Translate(-pCamRect:x(),-pCamRect:y(),0)			RoomDrawTileLayer(layer.data, self.map.width, pCamRect, self.tileset.tileVector)		gl.PopMatrix()	end	endfunction Room:setTile( l, x, y, t )		self.map[l].data:set(y * self.map.width + x, t)endfunction Room:getTile( l, x, y )	return self.map[l].data:get(y * self.map.width + x)endfunction Room:__init()	print "Room constructor!"end

---------------------------------------------------------------------------------- lightclass.lua--------------------------------------------------------------------------------function lightclass(name)	_G[name] = _G[name] or {}		_G[name].new = 			function(self,o)								o = o or {}										setmetatable(o, self)			self.__index = self			self.__lightclass = name			if self.__init then o:__init() end			return o		end						setmetatable(_G[name],{__call = _G[name].new})	end

local room = Room()room["map"] = {}room["map"][1] = {}room["map"][1]["p"] = 0.7room["map"][1]["data"] = IntVector{10,10,10, -- ...goes on for each tile in the layerroom["map"][2] = {}room["map"][2]["p"] = 1room["map"][2]["data"] = IntVector{1,1,1, --... goes onroom["map"]["height"] = 40room["map"]["width"] = 40room["name"] = "mountainpath"room["tileset"] = Tileset{filename='mountain.bmp'}return room

---------------------------------------------------------------------------------- Serialization.lua---------------------------------------------------------------------------------- Allows for serialization of tables WITH cycles. This quite clever code was -- stolen (with a few modifications) from Programming in Lua, the programming -- guide book for the Lua language. You can find it online at -- http://www.lua.org/pil/---------------------------------------------------------------------------------- note on lightclass functionality:-- the rule is, if the object has a tostring method defined then the save-- method will not delve any deeper into its table; it is assumed that all of-- the object's state is contained in the result of the tostring. if there is no-- tostring then the name of the class is pulled form the __lightclass element,-- an "empty" constructor is written, and the table is recursively saved.-- the examples are: Room is depth-written, and Tileset is surface-level-written-- the reasoning behind this is that some data, like Tilesets, cannot be written-- to text, because they have image data. instead the image data filename is-- written with a conststructor and serialization transparency is maintained.--local basicSerialize = function(o)	if type(o) == "number" then		return tostring(o)	elseif type(o) == "string" then		return string.format("%q", o)	elseif type(o) == "boolean" then		if o == true then return "true" else return "false" end	elseif type(o) == "userdata" then		if not getmetatable(o).__tostring then return 'nil -- error: no __tostring method defined for this userdata! KTW' end		return tostring(o)	end		endfunction save (name, value, saved, chunkReturn)	saved = saved or {}       -- initial value		local cReturnText = ""	if chunkReturn then cReturnText = "local " end			io.write(cReturnText, name, " = ")		if type(value) == "number" or 	   type(value) == "string" or 	   type(value) == "userdata" or 	   type(value) == "boolean" then		io.write(basicSerialize(value), "\n")	elseif type(value) == "table" then		if saved[value] then    -- value already saved?			io.write(saved[value], "\n")  -- use its previous name		else			saved[value] = name   -- save name for next time			local endHere = false			if value.__lightclass then 				if ( value.__tostring ) then					io.write( tostring(value) .. '\n' )						endHere = true				else					io.write( value.__lightclass .. "()\n" )				end							else				io.write("{}\n")     -- create a new table			end			if not endHere then				for k,v in pairs(value) do      -- save its fields					local fieldname = string.format("%s[%s]", name,													basicSerialize(k))					save(fieldname, v, saved)				end			end		end	else		io.write("nil -- cannot save a " .. type(value),"\n")	end	if chunkReturn then io.write("\nreturn ",name) endend -- function save