New promo images & save fix

main.lua

@@ -3,7 +3,9 @@ local mod = RegisterMod(modname, 1)
 local math = require("math")
 mod.print = Isaac.ConsoleOutput
 mod.game = Game()
-local save = include("save"):new()
+local savegen = include("save")
+local save = savegen:new()
+local json = include("json")
 local DEBUG = false
 
 mod.font = Font()
@@ -16,19 +18,34 @@ end
 function mod.isIdNotTakenAlready(id)
 	if id>=1 and id<=save.settings.maxid then
 		return not save.seen[id]
-	else
-		return false
 	end
+	if id>save.settings.maxid and save.settings.showonmodded then
+		local itemconfig = Isaac.GetItemConfig():GetCollectible(id)
+		if itemconfig then
+			local name = itemconfig.Name
+			return not save.seenmodded[name]
+		end
+	end
+
+	return false
 end
 
 function mod.registerTouched(id)
 	if id>=1 and id<=save.settings.maxid then
-		save.seen[id] = true
+		save:touchid(id)
+	end
+	if id >=save.settings.maxid then
+		-- Modded item, save them by name
+		-- (as IDs are choosen manually by the game, and may vary when changing mods)
+		local itemconfig = Isaac.GetItemConfig():GetCollectible(id)
+		if itemconfig then
+			local name = itemconfig.Name
+			save:touchname(name)
+		end
 	end
 
 	-- Save
-	mod:RemoveData()
-	mod:SaveData(save:dump())
+	mod:save()
 end
 
 -- Used to check if EID's description should be modified
@@ -46,7 +63,11 @@ end
 -- Used to modify EID's description
 function mod.modifierCallback(descObj)
 	if save.settings.eid then
-		descObj.Description = "#{{Trophy}} Not picked up yet!#"..descObj.Description
+		local str = "#{{Collectible}} Not picked up yet!#"
+		if descObj.ObjSubType>save.settings.maxid then
+			str = "#{{Trinket}} Not picked up yet!#"
+		end
+		descObj.Description = str..descObj.Description
 	end
 	return descObj
 end
@@ -82,7 +103,12 @@ function mod:PickupDrawCallback(pickupEntity, _)
 		if pickupEntity.Variant==PickupVariant.PICKUP_COLLECTIBLE then
 			if mod.isIdNotTakenAlready(pickupEntity.SubType) then
 				local v = Isaac.WorldToScreen(pickupEntity.Position + pickupEntity.SpriteOffset)
-				mod.font:DrawString("!", v.X-1, v.Y-52+math.sin(mod.game:GetFrameCount()/10)*2, KColor(0.98,0.93,0.55,1), 2, true)
+				local color = KColor(0.98,0.93,0.55,1)
+				if pickupEntity.SubType > save.settings.maxid then
+					-- Modded item
+					color = KColor(0.68,0.88,1,1)
+				end
+				mod.font:DrawString("!", v.X-1, v.Y-52+math.sin(mod.game:GetFrameCount()/10)*2, color , 2, true)
 			end
 		end
 	end
@@ -94,20 +120,31 @@ function mod:newrun()
 		if DEBUG then
 			mod.print(data.."\n")
 		end
-		save:load(data)
+		save = savegen:new()
+		save:load(json, data)
 		local c = 0
 		for _,v in ipairs(save.seen) do
 			if v then c = c+1 end
 		end
-		mod.print(modname.." Loaded, "..c.." items seen\n")
+		mod.print(modname.." loaded, "..c.." vanilla items seen")
+		if save.settings.showonmodded then
+			local c = 0
+			for _,v in pairs(save.seenmodded) do
+				if v then
+					c = c + 1
+				end
+			end
+			mod.print(", "..tostring(c).." modded")
+		end
+		mod.print(".\n")
 	end
 end
 
-function mod:preGameExit()
-	mod:SaveData(save:dump())
+function mod:save()
+	mod:SaveData(save:dump(json))
 end
 
-mod:AddCallback(ModCallbacks.MC_POST_GAME_END, mod.preGameExit)
+mod:AddCallback(ModCallbacks.MC_POST_GAME_END, mod.save)
 mod:AddCallback(ModCallbacks.MC_POST_GAME_STARTED, mod.newrun)
 
 mod:AddCallback(ModCallbacks.MC_POST_UPDATE, mod.update)
@@ -135,7 +172,7 @@ if ModConfigMenu then
 			end,
 			OnChange = function(b)
 				save.settings.eid = b
-				mod:SaveData(save:dump())
+				mod:save()
 			end,
 		}
 	)
@@ -152,7 +189,29 @@ if ModConfigMenu then
 			end,
 			OnChange = function(b)
 				save.settings.visual = b
-				mod:SaveData(save:dump())
+				mod:save()
+			end,
+		}
+	)
+
+	ModConfigMenu.AddSetting(
+		modname, -- This should be unique for your mod
+		nil,
+		{
+			Type = ModConfigMenu.OptionType.BOOLEAN,
+			CurrentSetting = function()
+				return save.settings.showonmodded
+			end,
+			Display = function()
+				return "Also track modded items: " .. (save.settings.showonmodded and "on" or "off")
+			end,
+			OnChange = function(b)
+				save.settings.showonmodded = b
+				if b==false then
+					-- Reset modded items
+					save.seenmodded = {}
+				end
+				mod:save()
 			end,
 		}
 	)
@@ -170,7 +229,7 @@ if ModConfigMenu then
 			end,
 			OnChange = function(b)
 				save.settings.showonblind = b
-				mod:SaveData(save:dump())
+				mod:save()
 			end,
 		}
 	)

metadata.xml

@@ -12,12 +12,15 @@ I made it mainly for myself, because it was annoying to go back to the menu ever
 There's an integration with External Item Description.
 It is also compatible with Mod Config Menu, if you want to toggle things (such as displaying info when on Curse Of The Blind)
 
-There's however a limitation: since (to my knowledge) there's no way to get information about seen items from the savefile, this mod takes it upon itself to track which item you picked up. (This means that when you install the mod for the first time, every item will be tagged as unseen)
+[strike]There's however a limitation: since (to my knowledge) there's no way to get information about seen items from the savefile, this mod takes it upon itself to track which item you picked up. (This means that when you install the mod for the first time, every item will be tagged as unseen)[/strike]
+
+EDIT: Turns out EID already has a support for this, using a save extractor, if you want to go down that route, here's the link to the extractor : https://github.com/wofsauge/External-Item-Descriptions/tree/master/scripts
+This mod is still somewhat relevant if you do not want to use external tools ^^
 
 Anyway, I hope that this mod will be useful to someone :)
 
 (Source code is available at https://forge.chapril.org/ayte/DeadGodHelper)</description>
-    <version>1.7</version>
+    <version>1.9</version>
     <visibility>Public</visibility>
     <tag id="Items"/>
     <tag id="Graphics"/>

save.lua

@@ -7,6 +7,7 @@ function savegen:new()
 	save.settings = {}
 	save.settings.eid = true
 	save.settings.visual = true
+	save.settings.showonmodded = true
 	save.settings.showonblind = false
 	save.settings.maxid = 732
 
@@ -15,22 +16,82 @@ function savegen:new()
 		save.seen[i] = false
 	end
 
-	function save:touch(id)
+	save.seenmodded = {}
+
+	function save:touchid(id)
+		-- Non-modded
 		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
+	function save:touchname(name)
+		-- Modded, save by name
+		self.seenmodded[name] = true
 	end
 
-	function save:load(text)
+	function save:dump(json)
+		local data = {}
+		if self.settings then
+			data.settings = {}
+			data.settings.eid = self.settings.eid
+			data.settings.visual = self.settings.visual
+			data.settings.showonblind = self.settings.showonblind
+			data.settings.showonmodded = self.settings.showonmodded
+		end
+		if self.seen then
+			data.seen = {}
+			for i=1, #save.seen do
+				data.seen[i] = self.seen[i]
+			end
+		end
+		if self.seenmodded then
+			data.seenmodded = {}
+			for i,v in pairs(self.seenmodded) do
+				data.seenmodded[i] = v
+			end
+		end
+
+		return json.encode(data)
+	end
+
+	function save:load(json, text)
+		if save:islegacysave(text) then
+			save:legacyload(text)
+			return save
+		else
+			local data = json.decode(text)
+			if data.settings then
+				save.settings.eid = data.settings.eid
+				save.settings.visual = data.settings.visual
+				save.settings.showonblind = data.settings.showonblind
+				save.settings.showonmodded = data.settings.showonmodded
+			end
+			if data.seen then
+				for i=1, #data.seen do
+					save.seen[i] = data.seen[i]
+				end
+			end
+			if data.seenmodded then
+				for i,v in pairs(data.seenmodded) do
+					save.seenmodded[i] = v
+				end
+			end
+		end
+	end
+
+	function save:islegacysave(text)
+		-- Check if legacy (before modded items support) save
+		for i=1, math.min(#text,self.settings.maxid+3) do
+			local digit = string.sub(text,i,i)
+			if digit~="0" and digit~="1" then
+				-- Not a legacy save
+				return false
+			end
+		end
+		return true
+	end
+
+	function save:legacyload(text)
+		-- Pre modded items support
 		-- Change attributes based on the text
 		-- Symbol to bool
 		local f = function(x, i)