Lighter save system

main.lua

@@ -1,12 +1,16 @@
 local modname = "DeadGod Helper"
 local mod = RegisterMod(modname, 1)
-local json = require("json")
 local math = require("math")
 mod.print = Isaac.ConsoleOutput
 mod.game = Game()
 local save = include("save"):new()
 if mod:HasData() then
-	save = json.decode(mod:LoadData())
+	save:load(mod:LoadData())
+	local c = 0
+	for i,v in ipairs(save.seen) do
+		if v then c = c+1 end
+	end
+	mod.print(modname.." Loaded, "..c.." items seen\n")
 end
 
 mod.font = Font()
@@ -30,7 +34,8 @@ function mod.registerTouched(id)
 	end
 
 	-- Save
-	mod:SaveData(json.encode(save))
+	mod:RemoveData()
+	mod:SaveData(save:dump())
 end
 
 -- Used to check if EID's description should be modified
@@ -64,10 +69,10 @@ function mod:update()
 				if player:GetCollectibleNum(data._deadgodlastid)>data._deadgodlastcount then -- Have it on me
 					-- Then I just picked it up, yay
 					mod.registerTouched(data._deadgodlastid)
+					mod.print("> "..tostring(data._deadgodlastid).."\n")
 					data._deadgodlastid = 0
 					data._deadgodlastcount = 0
-				end
-			end
+				end end
 		end
 		if item and item:IsCollectible() then
 			data._deadgodlastid = item.ID
@@ -88,6 +93,13 @@ function mod:PickupDrawCallback(pickupEntity, _)
 	end
 end
 
+function mod:preGameExit()
+	mod:RemoveData()
+	mod:SaveData(save:dump())
+end
+
+mod:AddCallback(ModCallbacks.MC_PRE_GAME_EXIT, mod.preGameExit)
+
 mod:AddCallback(ModCallbacks.MC_POST_UPDATE, mod.update)
 mod:AddCallback(ModCallbacks.MC_POST_PICKUP_RENDER, mod.PickupDrawCallback)
 

metadata.xml

@@ -4,7 +4,7 @@
     <directory>deadgod helper</directory>
     <id>2985754961</id>
     <description></description>
-    <version>1.1</version>
+    <version>1.3</version>
     <visibility>Private</visibility>
     <tag id="Items"/>
     <tag id="Graphics"/>

save.lua

@@ -19,6 +19,35 @@ function savegen:new()
 		self.seen[id] = true
 	end
 
+	function save:dump()
+		-- Returns a string representation of the save
+		-- Bool to symbol
+		local f = function(x) return (x and "1") or "0" end
+		local result = f(self.settings.eid)..f(self.settings.visual)..f(self.settings.showonblind)
+		for i=1, save.settings.maxid do
+			result = result..f(save.seen[i])
+		end
+		return result
+	end
+
+	function save:load(text)
+		-- Change attributes based on the text
+		-- Symbol to bool
+		local f = function(x, i)
+			return x:sub(i,i)=="1"
+		end
+		if (#text>=3) then
+			-- First 3 are the settings
+			self.settings.eid = f(text,1)
+			self.settings.visual = f(text,2)
+			self.settings.showonblind = f(text,3)
+		end
+		local offset = 3
+		for id=1, self.settings.maxid do
+			self.seen[id] = f(text,offset+id)
+		end
+	end
+
 	return save
 end