Split pit layout logic into separate file

The plan is to extend this further to incorporate walls and stuff.
This can later be used for the shop layout.

data/layoutparser.lua

@@ -0,0 +1,98 @@
+local random = map_random
+local pits = {}
+
+local function readLayoutFile(file)
+	local layoutfile = read_file(file)
+
+	local cleanData = ""
+	for i=1, #layoutfile do
+		local c = layoutfile:sub(i+1, i+1)
+		if c == "#" or c == "-" then
+			cleanData = cleanData .. c
+		end
+	end
+
+	local matrix = {}
+	for i=0, #cleanData-1 do
+		local c = cleanData:sub(i, i)
+		local col = i % 16
+		local row = (i - col)/16
+		local layout = 1 + (row - (row % 12))/12
+		local row = row % 12
+		if not matrix[layout] then matrix[layout] = {} end
+		if not matrix[layout][col] then matrix[layout][col] = {} end
+		if c == "#" then
+			matrix[layout][col][row] = true
+		else
+			matrix[layout][col][row] = false
+		end
+	end
+
+	return matrix;
+end
+
+local module = {}
+function module.load_textures(map)
+	local t_pit0 = add_texture(map, "Objects/Pit0.png")
+	local t_pit1 = add_texture(map, "Objects/Pit1.png")
+	local pit_yo = (random(5) + random(3)) * (16 * 2)
+
+	pits = {
+		center			= { t_pit0, t_pit1, 16, pit_yo + 16, false, false, false, true },
+		top				= { t_pit0, t_pit1, 16, pit_yo, false, false, false, true },
+		left			= { t_pit0, t_pit1, 0, pit_yo + 16, false, false, false, true },
+		right			= { t_pit0, t_pit1, 32, pit_yo + 16, false, false, false, true },
+		topleft			= { t_pit0, t_pit1, 0, pit_yo, false, false, false, true },
+		topright		= { t_pit0, t_pit1, 32, pit_yo, false, false, false, true },
+		innerleft		= { t_pit0, t_pit1, 80, pit_yo, false, false, false, true },
+		innermid		= { t_pit0, t_pit1, 96, pit_yo, false, false, false, true },
+		innerright		= { t_pit0, t_pit1, 112, pit_yo, false, false, false, true },
+		topcrevice		= { t_pit0, t_pit1, 64, pit_yo, false, false, false, true },
+		bottomcrevice	= { t_pit0, t_pit1, 64, pit_yo + 16, false, false, false, true },
+	}
+end
+
+function module.add_pits_to_room(room)
+	if CURRENT_LEVEL < 2 or random(5) ~= 1 then
+		return false
+	end
+
+	local matrix = readLayoutFile("pitlayouts.dat")
+
+	-- Chose a random layout
+	matrix = matrix[random(#matrix)]
+	for i=2,13 do
+		for j=2,10 do
+			if matrix[i][j] then
+				room.decor[i][j] = nil
+				if not matrix[i-1][j-1] and not matrix[i+1][j-1] and matrix[i-1][j] and matrix[i+1][j] and matrix[i][j-1] then
+					room.tiles[i][j] = pits.innermid
+				elseif not matrix[i-1][j-1] and matrix[i-1][j] and matrix[i][j-1] then
+					room.tiles[i][j] = pits.innerleft
+				elseif not matrix[i+1][j-1] and matrix[i+1][j] and matrix[i][j-1] then
+					room.tiles[i][j] = pits.innerright
+				elseif not matrix[i-1][j] and not matrix[i][j-1] and not matrix[i+1][j] then
+					room.tiles[i][j] = pits.topcrevice
+				elseif not matrix[i-1][j] and not matrix[i+1][j] then
+					room.tiles[i][j] = pits.bottomcrevice
+				elseif not matrix[i-1][j] and not matrix[i][j-1] then
+					room.tiles[i][j] = pits.topleft
+				elseif not matrix[i+1][j] and not matrix[i][j-1] then
+					room.tiles[i][j] = pits.topright
+				elseif not matrix[i-1][j] then
+					room.tiles[i][j] = pits.left
+				elseif not matrix[i+1][j] then
+					room.tiles[i][j] = pits.right
+				elseif not matrix[i][j-1] then
+					room.tiles[i][j] = pits.top
+				else
+					room.tiles[i][j] = pits.center
+				end
+			end
+		end
+	end
+
+	return true
+end
+
+return module

data/maproombuilder.lua

@@ -1,5 +1,6 @@
 -- FUNCTIONS
 local random = map_random
+local layoutparser = require "layoutparser" 
 
 -- CONSTANTS
 local UP	= 1
@@ -28,15 +29,6 @@ local wall = {
 	horizontal = nil
 }
 
-local pits = {
-	center = nil,
-	top = nil,
-	left = nil,
-	right = nil,
-	topleft = nil,
-	topright = nil,
-}
-
 local special = { level_exit = nil }
 
 local floorDecor = { }
@@ -154,74 +146,6 @@ local function add_random_decor_to_room(room)
 	end
 end
 
-local function add_pits_to_room(room)
-
-	if CURRENT_LEVEL < 2 or random(5) ~= 1 then
-		return false
-	end
-
-	local pitdata = read_file("pitlayouts.dat")
-
-	local cleanData = ""
-	for i=1, #pitdata do
-		local c = pitdata:sub(i+1, i+1)
-		if c == "#" or c == "-" then
-			cleanData = cleanData .. c
-		end
-	end
-
-	local matrix = {}
-	for i=0, #cleanData-1 do
-		local c = cleanData:sub(i, i)
-		local col = i % 16
-		local row = (i - col)/16
-		local layout = 1 + (row - (row % 12))/12
-		local row = row % 12
-		if not matrix[layout] then matrix[layout] = {} end
-		if not matrix[layout][col] then matrix[layout][col] = {} end
-		if c == "#" then
-			matrix[layout][col][row] = true
-		else
-			matrix[layout][col][row] = false
-		end
-	end
-	
-	-- Chose a random layout
-	matrix = matrix[random(#matrix)]
-	for i=2,13 do
-		for j=2,10 do
-			if matrix[i][j] then
-				room.decor[i][j] = nil
-				if not matrix[i-1][j-1] and not matrix[i+1][j-1] and matrix[i-1][j] and matrix[i+1][j] and matrix[i][j-1] then
-					room.tiles[i][j] = pits.innermid
-				elseif not matrix[i-1][j-1] and matrix[i-1][j] and matrix[i][j-1] then
-					room.tiles[i][j] = pits.innerleft
-				elseif not matrix[i+1][j-1] and matrix[i+1][j] and matrix[i][j-1] then
-					room.tiles[i][j] = pits.innerright
-				elseif not matrix[i-1][j] and not matrix[i][j-1] and not matrix[i+1][j] then
-					room.tiles[i][j] = pits.topcrevice
-				elseif not matrix[i-1][j] and not matrix[i+1][j] then
-					room.tiles[i][j] = pits.bottomcrevice
-				elseif not matrix[i-1][j] and not matrix[i][j-1] then
-					room.tiles[i][j] = pits.topleft
-				elseif not matrix[i+1][j] and not matrix[i][j-1] then
-					room.tiles[i][j] = pits.topright
-				elseif not matrix[i-1][j] then
-					room.tiles[i][j] = pits.left
-				elseif not matrix[i+1][j] then
-					room.tiles[i][j] = pits.right
-				elseif not matrix[i][j-1] then
-					room.tiles[i][j] = pits.top
-				else
-					room.tiles[i][j] = pits.center
-				end
-			end
-		end
-	end
-
-	return true
-end
-
 local function add_tiles_to_room (room, singletile)
 	for i=0,15 do
 		for j=0,11 do
@@ -428,7 +352,7 @@ local function build_normal_room(room)
 	add_random_decor_to_room(room)
 	add_walls_to_room(room)
 	add_exits_to_room(room)
-	local pitsAdded = crumbling or add_pits_to_room(room)
+	local pitsAdded = crumbling or layoutparser.add_pits_to_room(room)
 
 	if room.goal then
 		add_level_exit(room)
@@ -531,8 +455,7 @@ end
 function module.load_textures(map)
 	t_floor = add_texture(map, "Objects/Floor.png")
 	t_wall = add_texture(map, "Objects/Wall.png")
-	t_pit0 = add_texture(map, "Objects/Pit0.png")
+	layoutparser.load_textures(map)
-	t_pit1 = add_texture(map, "Objects/Pit1.png")
 
 	local seed = get_random_seed(CURRENT_LEVEL);
 	info("Map room random seed: " .. seed)
@@ -555,19 +478,6 @@ function module.load_textures(map)
 	floor.singleright	= { t_floor, -1, xo + 96, yo + 16, false }
 	floor.single		= { t_floor, -1, xo + 80, yo +  0, false }
 
-	local pit_yo = (random(5) + random(3)) * (16 * 2)
-	pits.topleft		= { t_pit0, t_pit1, 0, pit_yo, false, false, false, true }
-	pits.top			= { t_pit0, t_pit1, 16, pit_yo, false, false, false, true }
-	pits.topright		= { t_pit0, t_pit1, 32, pit_yo, false, false, false, true }
-	pits.left	   		= { t_pit0, t_pit1, 0, pit_yo + 16, false, false, false, true }
-	pits.center			= { t_pit0, t_pit1, 16, pit_yo + 16, false, false, false, true }
-	pits.right			= { t_pit0, t_pit1, 32, pit_yo + 16, false, false, false, true }
-	pits.innerleft		= { t_pit0, t_pit1, 80, pit_yo, false, false, false, true }
-	pits.innermid		= { t_pit0, t_pit1, 96, pit_yo, false, false, false, true }
-	pits.innerright		= { t_pit0, t_pit1, 112, pit_yo, false, false, false, true }
-	pits.topcrevice		= { t_pit0, t_pit1, 64, pit_yo, false, false, false, true }
-	pits.bottomcrevice	= { t_pit0, t_pit1, 64, pit_yo + 16, false, false, false, true }
-
 	wall.topleft		= { t_wall, -1, xo +  0, yo +  0, true }
 	wall.topright		= { t_wall, -1, xo + 32, yo +  0, true }
 	wall.bottomleft		= { t_wall, -1, xo +  0, yo + 32, true }