somewhat kinda got things working again

code/chunk.lua

@@ -1,7 +1,51 @@
 -- pieces of levels
 
-Chunk = {}
+Chunk = {all = {}}
 Chunk.__index = Chunk
 
-function Chunk:new(file, rect)
+-- CLASS METHODS
+
+-- box == nil for global chunks
+function Chunk:new(filename, box)
+	local o = { filename = filename, box = box }
+	setmetatable(o, self)
+	self.all[o] = true
 end
+
+function Chunk:getExportList()
+	local r = {}
+	for chunk in pairs(self.all) do
+		table.insert(r, chunk)
+	end
+	return r
+end
+
+-- INSTANCE METHODS
+
+function Chunk:containsPoint(pt)
+	return self.box == nil or self.box:containsPoint(pt)
+end
+
+function Chunk:load()
+	if self.loaded then
+		return
+	end
+	logPrint("loading chunk "..self.filename)
+	self.data = dofile(level_current.."/chunks/"..self.filename)
+	self.loaded = { rooms = {}, collisions = {} }
+	LevelTiles = self.data.tiles
+	indexLevelTiles()
+	optimizeTileObjects(self.loaded.collisions)
+
+	for _, v in ipairs(self.data.rooms or {}) do
+		local room = Collision:new(v[1],v[2],v[3],v[4])
+		table.insert(self.data.rooms, room)
+		table.insert(LoadedObjects.Rooms, room)
+	end
+	logPrint("loaded chunk with "..#self.loaded.collisions.." collisions")
+end
+
+function Chunk:save(chunkdir)
+	love.filesystem.write(chunkdir.."/chunks/"..self.filename, "return "..serialize_lua_data(self.data))
+end
+

code/in_out.lua

@@ -17,22 +17,30 @@ function exportLevel(levelname, dirname)
 	exportTable.name = levelname
 	exportTable.tileset = "library"
 	exportTable.properties = LevelData.properties
-	exportTable.tiles = LevelTiles
-	logPrint("- objects")
-	exportTable.objects = { spawns = {}, rooms = {} }
-	logPrint(" - spawns")
-	for i, v in ipairs(LoadedObjects.Spawns) do
+	--exportTable.tiles = LevelTiles
+	--logPrint("- objects")
+	--exportTable.objects = { spawns = {}, rooms = {} }
+	--logPrint(" - spawns")
+	--for i, v in ipairs(LoadedObjects.Spawns) do
 		--exportTable.objects.spawns = {v.archetype.name,{},v.args}
-	end
+	--end
 	
-	logPrint(" - rooms")
+	--logPrint(" - rooms")
 		
-	for i, room in ipairs(LoadedObjects.Rooms) do
-		table.insert(exportTable.objects.rooms,{room:asRect():getCoords()})
-	end
+	--for i, room in ipairs(LoadedObjects.Rooms) do
+	---	table.insert(exportTable.objects.rooms,{room:asRect():getCoords()})
+	--end
+	exportTable.chunks = Chunk:getExportList()
 	logPrint("Writing to file...")
 	local ok, err = love.filesystem.write(dirname.."/level.lua", "return "..serialize_lua_value(exportTable))
+	
 	if ok then
+		logPrint("Saving chunks...")
+		local chunkdir = dirname.."/chunks"
+		love.filesystem.createDirectory(chunkdir)
+		for chunk in Chunk.all do
+			chunk:save(chunkdir)
+		end
 		logPrint("Exporting complete.")
 	else
 		logPrint("Exporting failed: "..err)

code/level.lua

@@ -1,12 +1,25 @@
 function loadLevelTiles()
 	math.randomseed(3)
-	LevelData = dofile( love.filesystem.getSaveDirectory().."/export/unnamed_level/level.lua")
+	level_current = love.filesystem.getSaveDirectory().."/export/test1"
+	LevelData = dofile(level_current.."/level.lua")
+	LoadedObjects.Collisions = {}
+	LoadedObjects.Platforms = {}
+	LoadedObjects.Ladders = {}
+	LoadedObjects.Hazards = {}
 	if type(LevelData.tileset) == "string" then
 		LevelData.tileset_name = LevelData.tileset
 	end
 	LevelData.tileset = tileset[LevelData.tileset_name]
-		--dofile("data/levels/"..level_current)
 
+	getLevelTileData()
+	
+	for _, v in ipairs(LevelData.chunks) do
+		Chunk:new(v[1], v[2])
+	end
+	local global_chunk = next(Chunk.all)
+	global_chunk:load()
+	LoadedObjects.Collisions = global_chunk.loaded.collisions
+	
 	--[[
 		on level format:
 
@@ -17,11 +30,11 @@ function loadLevelTiles()
 		overlay_depth = foreground/background overlay depth
 		type = collision type
 	]]
-	getLevelTileData()
+	
 	LevelTiles = LevelData.tiles
 	updateLevelDimensions()
-	indexLevelTiles()
-	createTileObjects()
+	--
+	--createTileObjects()
 	createRoomObjects()
 	getSpawns()
 end
@@ -263,7 +276,7 @@ function drawGridDisplay()
 	end
 end
 
-function optimizeTileObjects()
+function optimizeTileObjects(dest)
 	logPrint("Optimizing Objects...")
 	local unoptimized = 0
 	local isTileOptimized = {}
@@ -343,22 +356,20 @@ function optimizeTileObjects()
 						base_x + tile_properties.width * tile_properties.scale * n,
 						base_y + tile_properties.height * tile_properties.scale * m
 					)
-					table.insert(LoadedObjects.Collisions,col)
+					table.insert(dest,col)
 				end
 			end
 		end
 	end
 
-	logPrint("collisions optimized from " .. unoptimized .. " to " .. #LoadedObjects.Collisions)
+	--logPrint("collisions optimized from " .. unoptimized .. " to " .. #LoadedObjects.Collisions)
 end
 
-function createTileObjects()
-	LoadedObjects.Collisions = {}
-	LoadedObjects.Platforms = {}
-	LoadedObjects.Ladders = {}
-	LoadedObjects.Hazards = {}
+-- currently broken
+function createTileObjects(dest)
 
-	optimizeTileObjects()
+
+	optimizeTileObjects(dest.collisions)
 
 	for i = 1, #LevelTiles do
 		for j = 1, #LevelTiles[i] do
@@ -378,6 +389,9 @@ function createTileObjects()
 					)
 				end
 
+				local col
+				local list = dest.collisions
+
 				-- wholes are handled in optimization now
 				--[[if type == "whole" then
 					local col = Collision:new(
@@ -389,33 +403,33 @@ function createTileObjects()
 					table.insert(LoadedObjects.Collisions,col)
 				else]]if type == "half_bottom" then
 
-					local col = Collision:new(
+					col = Collision:new(
 						base_x,
 						base_y + tile_properties.height/2 * tile_properties.scale,
 						base_x + tile_properties.width * tile_properties.scale,
 						base_y + tile_properties.height * tile_properties.scale
 					)
-					table.insert(LoadedObjects.Collisions,col)
+					
 
 				elseif type == "half_top" then
 
-					local col = Collision:new(
+					col = Collision:new(
 						base_x,
 						base_y ,
 						base_x + tile_properties.width * tile_properties.scale,
 						base_y + tile_properties.height/2 * tile_properties.scale
 					)
-					table.insert(LoadedObjects.Collisions,col)
+					
 
 				elseif type == "half_right" then
 
-					local col = Collision:new(
+					col = Collision:new(
 						base_x + tile_properties.height/2 * tile_properties.scale,
 						base_y,
 						base_x + tile_properties.width * tile_properties.scale,
 						base_y + tile_properties.height * tile_properties.scale
 					)
-					table.insert(LoadedObjects.Collisions,col)
+					
 
 				elseif type == "half_left" then
 
@@ -586,7 +600,8 @@ function createTileObjects()
 
 					end
 
-				elseif type == "ladder_right" then
+					-- TODO: fix ladders
+				--[[elseif type == "ladder_right" then
 
 					local ladder = Collision:new(
 						base_x + (tile_properties.width-4)* tile_properties.scale,
@@ -644,7 +659,7 @@ function createTileObjects()
 					)
 					table.insert(LoadedObjects.Platforms,plat)
 
-				elseif type == "bottom_hazard" then
+				]]elseif type == "bottom_hazard" then
 
 
 					local hazard = Collision:new(
@@ -653,9 +668,10 @@ function createTileObjects()
 						base_x + tile_properties.width * tile_properties.scale,
 						base_y + tile_properties.height * tile_properties.scale
 					)
-					table.insert(LoadedObjects.Hazards,hazard)
+					list = dest.hazards
 
 				end
+				table.insert(list, col)
 			end
 		end
 	end

code/require.lua

@@ -16,6 +16,7 @@ require "code/in_out"
 -- classes
 require "code/point"
 require "code/rect"
+require "code/chunk"
 require "code/objects"
 require "code/level"
 require "code/camera"