Added more comments to some functions

features/eid_api.lua

@@ -173,6 +173,7 @@ end
 ---@param appendText? string | string[] @Text to be appended onto the description. Can be one string, or a table of two strings; one for doubling and one for tripling
 ---@param numbersToMultiply? number | number[] @The number inside the text that should be multiplied. can be one number, or a table of numbers
 ---@param maxMultiplier? number @Is what tripling (Golden+Mom's Box) should multiply the numbers by, normally 3. If it's less than 2, it also applies to doubling
+---@param language? EID_LanguageCode @Default: "en"
 -- Example: My modded trinket gives +0.5 range and when tripled, adds homing instead of tripling the range boost:
 --- ```lua
 --- EID:addGoldenTrinketMetadata(Isaac.GetTrinketIdByName("Cool Trinket"), {"", "Homing tears"}, 0.5, 2)
@@ -194,14 +195,15 @@ function EID:addGoldenTrinketMetadata(id, appendText, numbersToMultiply, maxMult
 	end
 end
 ---Adds information about appending text and adding to numbers in a modded trinket's Golden/Mom's Box description. All three variables are optional, set to ""/0 or nil to not include them
+---@param id TrinketType
 ---@param appendText? string | string[] @Text to be appended onto the description. Can be one string, or a table of two strings; one for doubling and one for tripling
 ---@param numbersToChange? number | number[] @The number inside the text that gets added towards. can be one number, or a table of numbers
 ---@param additiveValues? number @Table of values that should be added to the number, if its doubled, tripled, or quadrupled
+---@param language? EID_LanguageCode @Default: "en"
 -- Example: My modded trinket gives +5 range and when tripled, adds homing instead of tripling the range boost:
 --- ```lua
 --- EID:addGoldenTrinketMetadataAdditive(Isaac.GetTrinketIdByName("Cool Trinket"), {"", "Homing tears"}, 5, {1,2,3})
 --- ```
-
 function EID:addGoldenTrinketMetadataAdditive(id, appendText, numbersToChange, additiveValues, language)
 	language = language or "en"
 
@@ -223,7 +225,6 @@ end
 ---Add a fully custom data table to the table of Golden Trinket effects.
 ---Check GoldenTrinketCallback in [eid_modifiers.lua](eid_modifiers.lua) to see the specifics of how it works.
 ---You may also want to add text entries into `EID.descriptions[languageCode].goldenTrinketEffects`
----<br><hr><br>
 ---@param id TrinketType
 ---@param dataTable EID_GoldenTrinketData
 function EID:addGoldenTrinketTable(id, dataTable)
@@ -247,6 +248,8 @@ function EID:addCard(id, description, itemName, language)
 end
 
 -- DEPRECATED! Does nothing! Don't use!
+---@deprecated
+---@diagnostic disable-next-line: unused-local
 function EID:addCardMetadata(id, mimicCharge, isRune)
 end
 
@@ -292,6 +295,7 @@ end
 ---@param id PillEffect
 ---@param mimicCharge integer @DEPRECATED, does nothing
 ---@param class? EID_PillClass @Default: "0". With False PHD, "3-" gives +0.6 Damage, "2-" and "1-" spawn a Black Heart
+---@diagnostic disable-next-line: unused-local
 function EID:addPillMetadata(id, mimicCharge, class)
 	EID.pillMetadata[id] = {
 		class = class or "0",
@@ -1005,8 +1009,9 @@ function EID:getXMLDescription(Type, Variant, SubType)
 end
 
 ---Check if an entity is part of the describable entities
----@param entity Entity
+---@param entity Entity | GridEntity
 ---@return boolean
+---@diagnostic disable: param-type-mismatch
 ---@diagnostic disable-next-line: duplicate-set-field
 function EID:hasDescription(entity)
 	if not EID:EntitySanityCheck(entity) then return false end
@@ -1681,7 +1686,7 @@ end
 
 ---Checks if the given player has the given item ID (or is the given player ID)
 ---@param player EntityPlayer
----@param Type EntityType
+---@param Type EntityType | string
 ---@param Var integer?
 ---@param Sub integer?
 ---@return boolean

features/eid_holdmapdesc.lua

@@ -506,7 +506,8 @@ function EID:ItemReminderAddSpecialDescriptions(player)
 	end
 end
 
--- Information about the player character's traits
+-- Item Reminder function: Information about the player character's traits
+---@param player EntityPlayer
 function EID:ItemReminderHandleCharacterInfo(player)
 	local playerType = player:GetPlayerType()
 	local playerDesc = EID:getDescriptionEntry("CharacterInfo")[playerType]
@@ -515,7 +516,8 @@ function EID:ItemReminderHandleCharacterInfo(player)
 	end
 end
 
--- Passive Item Descriptions
+-- Item Reminder function: Passive Item Descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandleSelectedPassiveItem(player)
 	local playerNum = EID:getPlayerID(player, true)
 	if EID.RecentlyTouchedItems[playerNum] and #EID.RecentlyTouchedItems[playerNum] > 0 then
@@ -523,7 +525,8 @@ function EID:ItemReminderHandleSelectedPassiveItem(player)
 	end
 end
 
--- Active Item Descriptions
+-- Item Reminder function: Active Item Descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandleActiveItems(player)
 	-- limit number of active item descriptions to 2, since Slot 3 and 4 are handled seperately
 	for i = 0, 1 do
@@ -536,7 +539,8 @@ function EID:ItemReminderHandleActiveItems(player)
 	end
 end
 
--- pocket active
+-- Item Reminder function: pocket actives
+---@param player EntityPlayer
 function EID:ItemReminderHandlePocketActive(player)
 	if not EID.isRepentance or not EID:ItemReminderCanAddMoreToView() then return end
 	local pocketActive = player:GetActiveItem(2) or 0
@@ -545,7 +549,8 @@ function EID:ItemReminderHandlePocketActive(player)
 	end
 end
 
--- dice bag
+-- Item Reminder function: dice bag
+---@param player EntityPlayer
 function EID:ItemReminderHandleDiceBag(player)
 	if not EID.isRepentance or not EID:ItemReminderCanAddMoreToView()  then return end
 
@@ -555,7 +560,8 @@ function EID:ItemReminderHandleDiceBag(player)
 	end
 end
 
--- Pocket Item Descriptions
+-- Item Reminder function: Pocket Item Descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandlePocketItems(player)
 	for i = 0, 2 do
 		if not EID:ItemReminderCanAddMoreToView() then return end
@@ -576,7 +582,9 @@ function EID:ItemReminderHandlePocketItems(player)
 	end
 end
 
--- Held trinkets are added at the end of the table; use this table in descending order
+-- Item Reminder function: Held trinkets are added at the end of the table; use this table in descending order
+---@param player EntityPlayer
+---@diagnostic disable-next-line: duplicate-set-field
 function EID:ItemReminderHeldPlusGulped(player)
 	local playerNum = EID:getPlayerID(player, true)
 	local newTable = {}
@@ -587,12 +595,14 @@ function EID:ItemReminderHeldPlusGulped(player)
 	end
 	return newTable
 end
--- Trinket Descriptions
+-- Item Reminder function: Trinket Descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandleTrinkets(player)
 	EID:ItemReminderHandleItemPrinting(player, EID:ItemReminderHeldPlusGulped(player), 350, true)
 end
 
--- Tainted ??? Poop Descriptions
+-- Item Reminder function: Tainted ??? Poop Descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandlePoopSpells(player)
 	if EID.isRepentance and player:GetPlayerType() == 25 and EID:ItemReminderCanAddMoreToView() then
 		local poopInfo = EID:getDescriptionEntry("poopSpells")
@@ -646,13 +656,14 @@ function EID:ItemReminderHandlePoopSpells(player)
 	end
 end
 
--- Lemegeton wisp descriptions
+-- Item Reminder function: Lemegeton wisp descriptions
+---@param player EntityPlayer
 function EID:ItemReminderHandleLemegetonWisps(player)
 	local playerNum = EID:getPlayerID(player, true)
 	EID:ItemReminderHandleItemPrinting(player, EID.WispsPerPlayer[playerNum], 100, false)
 end
 
--- Handle scroll inputs
+-- Item Reminder function: Handle scroll inputs
 function EID:ItemReminderHandleInputs()
 	if EID.Config["ItemReminderEnabled"] and EID.Config["ItemReminderDisplayMode"] ~= "Classic" and EID.holdTabCounter >= 30 and EID.TabDescThisFrame == false and EID.holdTabPlayer ~= nil then
 		if EID.Config["ItemReminderDisableInputs"] then EID.holdTabPlayer.ControlsCooldown = 2 end
@@ -695,10 +706,10 @@ function EID:ItemReminderHandleInputs()
 	end
 end
 
--- special list of all players, ignoring tainted forgotten ghost and coop babies
+-- Item Reminder function: special list of all players, ignoring tainted forgotten ghost and coop babies
 function EID:ItemReminderGetAllPlayers()
 	local filteredPlayerList = {}
-	for i, player in ipairs(EID.coopAllPlayers) do
+	for _, player in ipairs(EID.coopAllPlayers) do
 		if not (EID.isRepentance and player:GetPlayerType() == PlayerType.PLAYER_THESOUL_B) and player:GetBabySkin() == -1 then
 			table.insert(filteredPlayerList, player)		
 		end
@@ -706,14 +717,20 @@ function EID:ItemReminderGetAllPlayers()
 	return filteredPlayerList
 end
 
+-- Item Reminder function: check if the currently selected category is scrollable
+---@return boolean
 function EID:IsScrollableCategorySelected()
 	return EID.ItemReminderCategories[EID.ItemReminderSelectedCategory + 1].isScrollable
 end
 
+-- Item Reminder function: check if the given category is currently selected
+---@param categoryID integer
+---@return boolean
 function EID:IsCategorySelected(categoryID)
 	return EID.ItemReminderCategories[EID.ItemReminderSelectedCategory + 1].id == categoryID
 end
 
+-- Item Reminder function: Resets data when initializing holding TAB
 function EID:ItemReminderHandleInitHoldTab()
 	local oldDisplayPlayer = EID.ItemReminderSelectedPlayer
 
@@ -734,6 +751,8 @@ function EID:ItemReminderHandleInitHoldTab()
 	end
 end
 
+--- Returns the title of the currently selected Item Reminder category.
+---@return string
 function EID:ItemReminderGetTitle()
 	local category = EID.ItemReminderCategories[EID.ItemReminderSelectedCategory + 1]
 
@@ -836,19 +855,21 @@ function EID:ItemReminderHandleItemPrinting(player, entryTable, itemVariant, des
 	
 	if descending then
 		local startIndex = (#entryTable - EID.ItemReminderSelectedItems[EID.ItemReminderSelectedCategory] - 1) % #entryTable
-		for i = 1, descsToDisplay do
+		for _ = 1, descsToDisplay do
 			EID:ItemReminderAddDescription(player, 5, itemVariant, entryTable[startIndex+1] % GLITCH_ITEM_FLAG)
 			startIndex = (startIndex - 1) % #entryTable
 		end
 	else
 		local startIndex = EID.ItemReminderSelectedItems[EID.ItemReminderSelectedCategory] % #entryTable
-		for i = 1, descsToDisplay do
+		for _ = 1, descsToDisplay do
 			EID:ItemReminderAddDescription(player, 5, itemVariant, entryTable[startIndex+1] % GLITCH_ITEM_FLAG)
 			startIndex = (startIndex + 1) % #entryTable
 		end
 	end
 end
 
+--- Generates the description for the Item Reminder, based on the currently selected category and player.
+---@return string
 function EID:ItemReminderGetDescription()
 	EID.InsideItemReminder = true
 	EID.ItemReminderTempDescriptions = {}

features/eid_modifiers.lua

@@ -8,8 +8,15 @@ EID.TabDescThisFrame = false
 -- Some modifiers (e.g. Glitched Crown) want to know if Tab was pressed/released, rather than held
 EID.TabHeldThisFrame = false
 EID.TabHeldLastFrame = false
-function EID:TabPressed() return EID.TabHeldThisFrame and not EID.TabHeldLastFrame end
-function EID:TabReleased() return EID.TabHeldLastFrame and not EID.TabHeldThisFrame end
+
+-- Returns true if Tab was pressed this frame, false otherwise
+function EID:TabPressed()
+	return EID.TabHeldThisFrame and not EID.TabHeldLastFrame
+end
+-- Returns true if Tab was released this frame, false otherwise
+function EID:TabReleased()
+	return EID.TabHeldLastFrame and not EID.TabHeldThisFrame
+end
 
 -- List of collectible IDs for us to check if a player owns them; feel free to add to this in mods that add description modifiers!
 EID.collectiblesToCheck[CollectibleType.COLLECTIBLE_VOID] = true
@@ -32,6 +39,7 @@ EID.collectiblesOwned = {}
 EID.collectiblesAbsorbed = {}
 
 EID.LastCollectibleCheck = 0
+-- Check if any players own a collectible, returns true if at least one player has it
 function EID:CheckPlayersCollectibles()
 	-- recheck the players' owned collectibles periodically, not every frame
 	-- (has to be checked regularly due to mechanics like D4 / Tainted Eden)

main.lua

@@ -86,6 +86,12 @@ local hudBBSprite = Sprite()
 hudBBSprite:Load("gfx/eid_transform_icons.anm2", true)
 hudBBSprite:Play("boundingBox")
 
+local questionMarkSprite = Sprite()
+questionMarkSprite:Load("gfx/005.100_collectible.anm2",true)
+questionMarkSprite:ReplaceSpritesheet(1,"gfx/items/collectibles/questionmark.png")
+questionMarkSprite:LoadGraphics()
+
+
 
 EID.ModIndicator = { }
 -- Overwriting "RegisterMod" to track which mods are loading
@@ -133,6 +139,8 @@ local nullVector = Vector(0,0)
 ------------------------------- Load Font ---------------------------------
 local modfolder ='external item descriptions_836319872' --release mod folder name
 
+--- Function to get the current mod path
+--- @return string The absolute path to the current mod
 function EID:GetCurrentModPath()
 	if debug then
 		return string.sub(debug.getinfo(EID.GetCurrentModPath).source,2) .. "/../"
@@ -173,8 +181,7 @@ if not success then
 	end
 end
 
----------------------------------------------------------------------------
--------------Handle Resetting Floor Trackers--------------
+--- Function to reset all floor trackers when a new floor is entered
 function EID:onNewFloor()
 	pathsChecked = {}
 	if EID.isRepentance then
@@ -187,14 +194,7 @@ function EID:onNewFloor()
 end
 EID:AddCallback(ModCallbacks.MC_POST_NEW_LEVEL, EID.onNewFloor)
 
----------------------------------------------------------------------------
-------------------------Handle ALT FLOOR CHOICE----------------------------
-
-local questionMarkSprite = Sprite()
-questionMarkSprite:Load("gfx/005.100_collectible.anm2",true)
-questionMarkSprite:ReplaceSpritesheet(1,"gfx/items/collectibles/questionmark.png")
-questionMarkSprite:LoadGraphics()
-
+--- Function to check if a collectible pedestal is an alt path choice
 function EID:IsAltChoice(pickup)
 	-- do not run this while Curse of the Blind is active, since this function is really just a "is collectible pedestal a red question mark" check
 	if not EID.isRepentance or EID:hasCurseBlind() then
@@ -250,6 +250,9 @@ if EID.isRepentance then
 	local lastGetItemResult = {nil, nil, nil, nil} -- itemID, Frame, gridIndex, InitSeed
 	local lastFrameGridChecked = 0
 
+	--- Handle Flip Item positions and Crane Game item positions. Repentance Only function!
+	---@param selectedCollectible number
+	---@param itemPoolType number
 	function EID:postGetCollectible(selectedCollectible, itemPoolType)
 		-- Handle Crane Game
 		if itemPoolType == ItemPoolType.POOL_CRANE_GAME then
@@ -284,7 +287,11 @@ if EID.isRepentance then
 	end
 	EID:AddCallback(ModCallbacks.MC_POST_GET_COLLECTIBLE, EID.postGetCollectible)
 
-	-- Handle Flip Item spawn
+	--- Pre Room Entity Spawn callback to handle Flip item and pedestal spawning. Repentance Only function!
+	---@param entityType any
+	---@param variant any
+	---@param subtype any
+	---@param gridIndex any
 	function EID:preRoomEntitySpawn(entityType, variant, subtype, gridIndex)
 		flipItemNext = false
 		if entityType == 6 and variant == 14 then
@@ -299,6 +306,8 @@ if EID.isRepentance then
 	end
 	EID:AddCallback(ModCallbacks.MC_PRE_ROOM_ENTITY_SPAWN, EID.preRoomEntitySpawn)
 
+	--- Post Pickup Init callback to handle Flip item initialization. Repentance Only function!
+	---@param entity any
 	function EID:postPickupInitFlip(entity)
 		initialItemNext = false
 		flipItemNext = true
@@ -327,6 +336,8 @@ if EID.isRepentance then
 	end
 	EID:AddCallback(ModCallbacks.MC_POST_PICKUP_INIT, EID.postPickupInitFlip, PickupVariant.PICKUP_COLLECTIBLE)
 
+	--- Check if a pedestal's index is valid for Flip items. Repentance Only function!
+	---@param entity any
 	function EID:CheckPedestalIndex(entity)
 		-- Only pedestals with indexes that were present at room load can be flip pedestals
 		-- Fixes shop restock machines and Diplopia... mostly. At least while you're in the room.
@@ -342,6 +353,7 @@ if EID.isRepentance then
 	EID:AddCallback(ModCallbacks.MC_POST_PICKUP_UPDATE, EID.CheckPedestalIndex, PickupVariant.PICKUP_COLLECTIBLE)
 
 	-- Before using Flip, swap all flippable pedestal's current item with the flip one (also, fix grid index if needed)
+	-- Repentance only function!
 	function EID:CheckFlipGridIndexes(collectibleType)
 		-- also, reload our descriptions due to transformation progress changing upon Flip
 		EID.ForceRefreshCache = true
@@ -366,7 +378,7 @@ if EID.isRepentance then
 	EID:AddCallback(ModCallbacks.MC_PRE_USE_ITEM, EID.CheckFlipGridIndexes, CollectibleType.COLLECTIBLE_FLIP)
 end
 
--- Watch for a Void absorbing active items
+-- MC_PRE_USE_ITEM callback to watch for Void absorbing active items
 function EID:CheckVoidAbsorbs(_, _, player)
 	player = player or EID.player
 	local playerID = EID:getPlayerID(player, true)
@@ -453,6 +465,7 @@ EID.CachedRenderPoses = {}
 EID.descriptionsToPrint = {}
 EID.entitiesToPrint = {}
 
+--- Reset the description cache, used when options change or when printing descriptions
 function EID:ResetDescCache()
 	EID.CachedIcons = {}
 	EID.CachedStrings = {}
@@ -461,7 +474,9 @@ function EID:ResetDescCache()
 	EID.previousDescs = {}
 end
 
-
+--- Add a description to the print queue
+---@param desc EID_DescObj | table -- The description object to add
+---@param insertLoc integer | nil
 function EID:addDescriptionToPrint(desc, insertLoc)
 	if desc.Entity and EID.entitiesToPrint[GetPtrHash(desc.Entity)] then return end
 	if #EID.descriptionsToPrint == EID.Config["MaxDescriptionsToDisplay"] and not insertLoc then return end
@@ -472,12 +487,17 @@ function EID:addDescriptionToPrint(desc, insertLoc)
 	if desc.Entity then EID.entitiesToPrint[GetPtrHash(desc.Entity)] = true end
 end
 
+--- Add a question mark description to the print queue
+---@param entity Entity
+---@param description string | nil
 function EID:addQuestionMarkDescription(entity, description)
 	EID:addDescriptionToPrint({ Icon = EID.InlineIcons["QuestionMark"], Description = description or "", Entity = entity})
 end
 
 local prevPrintFrame = 0
 
+--- Print all descriptions that are currently in the description table
+--- @param useCached boolean | nil - If true, will use the cached descriptions instead of printing new ones
 function EID:printDescriptions(useCached)
 	prevPrintFrame = EID.GameRenderCount
 
@@ -513,6 +533,7 @@ function EID:printDescriptions(useCached)
 	end
 end
 
+--- Print all descriptions that are currently in the description table
 function EID:printNewDescriptions()
 	EID.CachingDescription = true
 	EID:ResetDescCache()
@@ -533,11 +554,14 @@ function EID:printNewDescriptions()
 	end
 end
 
+--- Prints a description to the screen
+---@param desc EID_DescObj
+---@param cachedID integer | nil -- If this is a cached description, pass the index of the cached description
 function EID:printDescription(desc, cachedID)
 	EID:PositionLocalMode(desc.Entity)
 	-- Do not print this description if it has to be drawn in the top-left and we've already drawn a top-left desc this frame
 	if EID.CurrentScaleType == "Size" then
-		if alwaysUseLocalMode then return false
+		if alwaysUseLocalMode then return
 		else alwaysUseLocalMode = true end
 	end
 	EID.isDisplaying = true
@@ -716,6 +740,10 @@ function EID:printDescription(desc, cachedID)
 	end
 end
 
+--- Prints bullet points from a description string
+---@param description string - The description string to print
+---@param renderPos Vector - The position to render the bullet points at
+---@param ignoreBPConfig boolean - If true, will ignore the bullet point icon configuration
 function EID:printBulletPoints(description, renderPos, ignoreBPConfig)
 	local textboxWidth = tonumber(EID.Config["TextboxWidth"])
 	local textScale = Vector(EID.Scale, EID.Scale)
@@ -752,6 +780,7 @@ end
 EID.isMirrorRoom = false
 EID.isDeathCertRoom = false
 if EID.isRepentance then
+	--- Handle Flip Item in New Room. Repentance only function!
 	function EID:AssignFlipItems()
 		EID.flipMaxIndex = -1
 		local curRoomIndex = game:GetLevel():GetCurrentRoomIndex()
@@ -766,6 +795,7 @@ if EID.isRepentance then
 			end
 		end
 	end
+	--- Handle MC_POST_NEW_ROOM for Repentance features
 	function EID:onNewRoomRep()
 		local level = game:GetLevel()
 		EID.isMirrorRoom = level:GetCurrentRoom():IsMirrorWorld()
@@ -779,7 +809,7 @@ if EID.isRepentance then
 	end
 	EID:AddCallback(ModCallbacks.MC_POST_NEW_ROOM, EID.onNewRoomRep)
 end
-
+--- MC_POST_NEW_ROOM callback to handle new rooms, mostly Glowing Hour Glass rewinding and Grid Entities
 function EID:onNewRoom()
 	EID:CheckCurrentRoomGridEntities()
 	-- Store values here to be rewound after using Glowing Hour Glass
@@ -797,11 +827,15 @@ end
 EID:AddCallback(ModCallbacks.MC_POST_NEW_ROOM, EID.onNewRoom)
 ---------------------------------------------------------------------------
 ---------------------------Handle Rendering--------------------------------
+-- RGB colors for each player's highlights (Red, Blue, Yellow, Green)
+local playerRGB = { {1,0.6,0.6}, {0.5,0.75,1}, {0.9, 0.9, 0.5}, {0.5,1,0.75} }
 
+--- Render an unidentified pill description
+---@param entity Entity
 function EID:renderUnidentifiedPill(entity)
 	EID:PositionLocalMode(entity)
 	if EID.CurrentScaleType == "Size" then
-		if alwaysUseLocalMode then return false
+		if alwaysUseLocalMode then return
 		else alwaysUseLocalMode = true end
 	end
 	EID.isDisplaying = true
@@ -841,10 +875,9 @@ function EID:renderUnidentifiedPill(entity)
 	end
 end
 
--- RGB colors for each player's highlights (Red, Blue, Yellow, Green)
-local playerRGB = { {1,0.6,0.6}, {0.5,0.75,1}, {0.9, 0.9, 0.5}, {0.5,1,0.75} }
-
+--- Render an indicator for an entity, such as a highlight or arrow
 ---@param entity Entity
+---@param playerNum integer - The player number to render the indicator for. Controls the arrow color
 function EID:renderIndicator(entity, playerNum)
 	if EID.Config["Indicator"] == "none" then
 		return
@@ -912,6 +945,7 @@ function EID:renderIndicator(entity, playerNum)
 	end
 end
 
+--- Position the description box in Local Mode, next to the item or entity
 ---@param entity Entity
 ---@diagnostic disable-next-line: duplicate-set-field
 function EID:PositionLocalMode(entity)
@@ -944,6 +978,7 @@ function EID:PositionLocalMode(entity)
 	end
 end
 
+--- Render HUD location indicators for debugging purposes
 function EID:renderHUDLocationIndicators()
 	local mousePos = Isaac.WorldToRenderPosition(Input.GetMousePosition(true)) * 2
 	Isaac.RenderScaledText("Mouse pos   X:"..mousePos.X.." Y:"..mousePos.Y, 100, 10, 0.5, 0.5, 1 ,1 ,1 ,1 )
@@ -960,6 +995,8 @@ end
 local lastMousePos = Vector(0,0)
 local lastMouseMove = 0
 
+--- Handle the HUD hover functionality, checking if the mouse is over any HUD elements
+--- @return EID_DescObj | nil - Returns the description object if the mouse is over a HUD element, otherwise nil
 function EID:handleHoverHUD()
 	local mousePos = Isaac.WorldToScreen(Input.GetMousePosition(true)) * 2
 	if mousePos:Distance(lastMousePos) > 2 then
@@ -982,6 +1019,7 @@ function EID:handleHoverHUD()
 	return nil
 end
 
+--- Set the player and coop player data for EID
 function EID:setPlayer()
 	local numPlayers = game:GetNumPlayers()
 	-- Old simple setPlayer, to reduce runtime in single player
@@ -1034,12 +1072,13 @@ end
 
 ---------------------------------------------------------------------------
 ---------------------------On Update Function------------------------------
--- Runs 30 times a second; doesn't update while paused
 
 local collSpawned = false
 EID.RecheckVoid = false
 EID.ShouldCheckWisp = false
 
+--- MC_POST_UPDATE callback that runs 30 times a second; doesn't update while paused
+--- Handles updating the game state and checking for new items
 function EID:onGameUpdate()
 	EID.GameUpdateCount = EID.GameUpdateCount + 1
 	EID:checkPlayersForMissingItems()
@@ -1128,6 +1167,7 @@ local function attemptPathfind(entity)
 end
 
 local hasShownStartWarning = false
+--- Check for start of run warnings, such as old game version or modded items
 function EID:CheckStartOfRunWarnings()
 	if EID.isRepentance and not EID.Config["DisableStartOfRunWarnings"] and game:GetFrameCount() < 10*30 then
 		-- Old Repentance version check; update this to check for the existence of the newest mod API function EID uses
@@ -1228,6 +1268,7 @@ EID.lastDist = 0
 EID.OptionChanged = false
 EID.bagPlayer = nil
 
+--- Render function that runs every frame and handles the main EID rendering logic.
 function EID:OnRender()
 	-- Increases by 60 per second, ignores pauses
 	EID.GameRenderCount = EID.GameRenderCount + 1
@@ -1614,6 +1655,9 @@ end
 
 EID:AddCallback(ModCallbacks.MC_POST_RENDER, EID.OnRender)
 
+--- Add active item progress to the player's transformation progress.
+---@param player EntityPlayer
+---@param isD4 boolean
 local function AddActiveItemProgress(player, isD4)
 	EID.ForceRefreshCache = true
 	local playerID = EID:getPlayerID(player, true)
@@ -1635,10 +1679,12 @@ end
 -- Check the active items of every player for transformation progress (used at game start and after Genesis)
 local function CheckAllActiveItemProgress()
 	for i = 0, game:GetNumPlayers() - 1 do
-		AddActiveItemProgress(Isaac.GetPlayer(i))
+		AddActiveItemProgress(Isaac.GetPlayer(i), false)
 	end
 end
 
+--- OnGameStartGeneral is called when the game starts, either from a save or a new run.
+--- It initializes various EID tables and resets item interactions.
 local function OnGameStartGeneral(_,isSave)
 	EID:GetAllPassiveItems()
 	EID:GetTransformationsOfModdedItems()
@@ -1671,7 +1717,7 @@ local function OnUseD4(_, _, _, player)
 end
 EID:AddCallback(ModCallbacks.MC_USE_ITEM, OnUseD4, CollectibleType.COLLECTIBLE_D4)
 
--- Watch for smelting trinkets; includes Gulp and Marbles
+-- MC_PRE_USE_ITEM callback to watch for smelting trinkets; includes Gulp and Marbles
 function EID:OnUseSmelter(_, _, _, player)
 	player = player or EID.player
 	local playerNum = EID:getPlayerID(player, true)
@@ -1684,7 +1730,7 @@ function EID:OnUseSmelter(_, _, _, player)
 end
 EID:AddCallback(ModCallbacks.MC_PRE_USE_ITEM, EID.OnUseSmelter, CollectibleType.COLLECTIBLE_SMELTER)
 
--- Watch for Glowing Hourglass to revert certain variables
+-- MC_PRE_USE_ITEM callback to watch for Glowing Hourglass to revert certain variables
 local function OnUseGlowingHourglass(_, _, _, _)
 	EID.absorbedItems = EID:CopyTable(preHourglassStatus.absorbedItems)
 	EID.PlayerItemInteractions = EID:CopyTable(preHourglassStatus.PlayerItemInteractions)
@@ -1721,6 +1767,10 @@ if EID.isRepentance then
 	EID:AddCallback(ModCallbacks.MC_PRE_USE_ITEM, OnUseGeneral)
 end
 
+--- OnUsePill is called when a pill is used, and handles pill history tracking and Wild Card effects.
+---@param pillEffectID number The ID of the pill effect being used.
+---@param player EntityPlayer The player using the pill.
+---@param useFlags number Flags indicating how the pill was used (e.g., whether it was used with no animation).
 function EID:OnUsePill(pillEffectID, player, useFlags)
 	player = player or EID.player --AB+ doesn't receive player in callback arguments!
 	-- get the pill color by checking the player's pocket
@@ -1743,6 +1793,10 @@ function EID:OnUsePill(pillEffectID, player, useFlags)
 end
 EID:AddCallback(ModCallbacks.MC_USE_PILL, EID.OnUsePill)
 
+--- OnUseCard is called when a card is used, and handles card history tracking and Wild Card effects.
+---@param cardID number The ID of the card being used.
+---@param player EntityPlayer The player using the card.
+---@param useFlags number Flags indicating how the card was used (e.g., whether it was used with no animation).
 function EID:OnUseCard(cardID, player, useFlags)
 	player = player or EID.player --AB+ doesn't receive player in callback arguments!
 	EID:AddPickupToHistory("card", cardID, player, useFlags)
@@ -1771,6 +1825,11 @@ local configIgnoreList = {
 --------------------------------
 --------Handle Savedata---------
 --------------------------------
+
+
+--- OnGameStart is called when the game starts, either from a save or a new run.
+--- It initializes the config data if available.
+---@param isSave boolean Indicates whether the game is starting from a save or a new run.
 function EID:OnGameStart(isSave)
 	--Loading Moddata--
 	if EID:HasData() then
@@ -1881,7 +1940,7 @@ function EID:OnGameStart(isSave)
 end
 EID:AddCallback(ModCallbacks.MC_POST_GAME_STARTED, EID.OnGameStart)
 
---Saving Moddata--
+--- OnGameExit saves the current EID configuration.
 function EID:OnGameExit()
 	if EID.isRepentance then
 		EID.Config["BagContent"] = EID.BoC.BagItems or {}