A better Key Bum v 1.3

local Mod = RegisterMod("betterkeybum", 1)
local game = Game()

-- BumsKeys = 0 -- gobal variable which keeps track on how many keys Key Bum picked up
local DadsKey = nil
local BumsKeys = 0

local KBumExtra = 0

function Mod:onInit(player)
	if game:GetFrameCount() == 1 then
		-- spawn in if you want to
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, TrinketType.TRINKET_PAPER_CLIP, Vector(150, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, TrinketType.TRINKET_STORE_KEY, Vector(250, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_SKELETON_KEY, Vector(350, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_LATCH_KEY, Vector400, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_MOMS_KEY, Vector(350, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_DADS_KEY, Vector(300, 250), Vector(0,0), player)
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_KEY_BUM, Vector(300, 200), Vector(0,0), player)
		-- check for Dads Key
		DadsKey = false
	end
end
Mod:AddCallback(ModCallbacks.MC_POST_PEFFECT_UPDATE, Mod.onInit)


local function SkeletonKey(KBum, keyone)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local SkeItemPool = {175,199,343}	-- 175 = Dads Key, 199 = Moms Key, 343 = Latch Key
	local BackItemPool = {175,199,343}
	-- Trinket tables
	local SkeTrinketPool = {19,83}		-- 19 = Paper Clip, 83 = Store Key
	local BackTrinketPool = {19,83}
	if player:HasCollectible(17) then	-- 17 = Skeleton Key
		if keyone < 50 then
			-- check if the player has an item and remove it from the table. It is removed from the "pool"
			if player:HasCollectible(343) then
				table.remove(SkeItemPool, 3)
			end
			if player:HasCollectible(199) then
				table.remove(SkeItemPool, 2)
			end
			if DadsKey == true then
				table.remove(SkeItemPool, 1)
			end
			-- make sure the table is not empty
			if SkeItemPool[1] ~= 175
			and SkeItemPool[1] ~= 199
			and SkeItemPool[1] ~= 343 then
				-- Breakfasting, if the table is empty
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#SkeItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, SkeItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				if SkeItemPool[pickitem] == 175 then
					DadsKey = true
				end
				-- after spawning the Item you have to reset the table
				SkeItemPool = BackItemPool
			end
		else
			-- check if the player has a trinket and remove it from the table. It is removed from the "pool"
			if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
			or player:GetTrinket(1) == TrinketType.TRINKET_STORE_KEY then
				table.remove(SkeTrinketPool, 2)
			end
			if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
			or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP then
				table.remove(SkeTrinketPool, 1)
			end
			-- make sure the table is not empty
			if SkeTrinketPool[1] ~= 19
			and SkeTrinketPool[1] ~= 83 then
				-- if the table is empty, then Key Bum will spawn an item
				if player:HasCollectible(343) then
					table.remove(SkeItemPool, 3)
				end
				if player:HasCollectible(199) then
					table.remove(SkeItemPool, 2)
				end
				if player:HasCollectible(175) then
					table.remove(SkeItemPool, 1)
				end
				if SkeItemPool[1] ~= 175
				and SkeItemPool[1] ~= 199
				and SkeItemPool[1] ~= 343 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#SkeItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, SkeItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					if SkeItemPool[pickitem] == 175 then
						DadsKey = true
					end
					SkeItemPool = BackItemPool
				end
			else
				local picktrinket = math.random(#SkeTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, SkeTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				-- reset the Trinket "pool"
				SkeTrinketPool = BackTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_SKELETON_KEY, KBum.Position, Vector(0,0), KBum)
	end
end

local function MomKey(KBum, keytwo)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local MomItemPool = {17,175,343}	-- 17 = Skeleton Key, 175 = Dads Key, 343 = Latch Key
	local BackMomItemPool = {17,175,343}
	-- Trinket tables
	local MomTrinketPool = {19,83}		-- 19 = Paper Clip, 83 = Store Key
	local BackMomTrinketPool = {19,83}
	if player:HasCollectible(199) then	-- 199 = Moms Key
		if keytwo < 50 then
			if player:HasCollectible(343) then
				table.remove(MomItemPool, 3)
			end
			if DadsKey == true then
				table.remove(MomItemPool, 2)
			end
			if player:HasCollectible(17) then
				table.remove(MomItemPool, 1)
			end
			if MomItemPool[1] ~= 17
			and MomItemPool[1] ~= 175
			and MomItemPool[1] ~= 343 then
				-- Breakfasting
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#MomItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, MomItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				if MomItemPool[pickitem] == 175 then
					DadsKey = true
				end
				MomItemPool = BackMomItemPool
			end
		else
			if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
			or player:GetTrinket(1) == TrinketType.TRINKET_STORE_KEY then
				table.remove(MomTrinketPool, 2)
			end
			if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
			or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP then
				table.remove(MomTrinketPool, 1)
			end
			if MomTrinketPool[1] ~= 19
			and MomTrinketPool[1] ~= 83 then
				if player:HasCollectible(343) then
					table.remove(MomItemPool, 3)
				end
				if DadsKey == true then
					table.remove(MomItemPool, 2)
				end
				if player:HasCollectible(17) then
					table.remove(MomItemPool, 1)
				end
				if MomItemPool[1] ~= 17
				and MomItemPool[1] ~= 175
				and MomItemPool[1] ~= 343 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#MomItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, MomItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					if MomItemPool[pickitem] == 175 then
						DadsKey = true
					end
					MomItemPool = BackMomItemPool
				end
			else
				local picktrinket = math.random(#MomTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, MomTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				MomTrinketPool = BackMomTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_MOMS_KEY, KBum.Position, Vector(0,0), KBum)
	end
end


local function DadKey(KBum, keythree)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local DadItemPool = {17,199,343}	-- 17 = Skeleton Key, 199 = Moms Key, 343 = Latch Key
	local BackDadItemPool = {17,199,343}
	-- Trinket tables
	local DadTrinketPool = {19,83}		-- 19 = Paper Clip, 83 = Store Key
	local BackDadTrinketPool = {19,83}
	if DadsKey == true then
		if keythree < 50 then
			if player:HasCollectible(343) then
				table.remove(DadItemPool, 3)
			end
			if player:HasCollectible(199) then
				table.remove(DadItemPool, 2)
			end
			if player:HasCollectible(17) then
				table.remove(DadItemPool, 1)
			end
			if DadItemPool[1] ~= 17
			and DadItemPool[1] ~= 199
			and DadItemPool[1] ~= 343 then
				-- Breakfasting
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#DadItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, DadItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				DadItemPool = BackDadItemPool
			end
		else
			if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
			or player:GetTrinket(1) == TrinketType.TRINKET_STORE_KEY then
				table.remove(DadTrinketPool, 2)
			end
			if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
			or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP then
				table.remove(DadTrinketPool, 1)
			end
			if DadTrinketPool[1] ~= 19
			and DadTrinketPool[1] ~= 83 then
				if player:HasCollectible(343) then
					table.remove(DadItemPool, 3)
				end
				if DadsKey == true then
					table.remove(DadItemPool, 2)
				end
				if player:HasCollectible(17) then
					table.remove(DadItemPool, 1)
				end
				if DadItemPool[1] ~= 17
				and DadItemPool[1] ~= 199
				and DadItemPool[1] ~= 343 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#DadItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, DadItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					DadItemPool = BackDadItemPool
				end
			else
				local picktrinket = math.random(#DadTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET,DadTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				DadTrinketPool = BackDadTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_DADS_KEY, KBum.Position, Vector(0,0), KBum)
		DadsKey = true
	end
end

local function LatchKey(KBum, keyfour)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local LatchItemPool = {17,175,199}	-- 17 = Skeleton Key, 175 = Dads Key, 199 = Moms Key
	local BackLatchItemPool = {17,175,199}
	-- Trinket tables
	local LatchTrinketPool = {19,83}		-- 19 = Paper Clip, 83 = Store Key
	local BackLatchTrinketPool = {19,83}
	if player:HasCollectible(343) then	-- 343 = Latch Key
		if keyfour < 50 then
			if player:HasCollectible(199) then
				table.remove(LatchItemPool, 3)
			end
			if DadsKey == true then
				table.remove(LatchItemPool, 2)
			end
			if player:HasCollectible(17) then
				table.remove(LatchItemPool, 1)
			end
			if LatchItemPool[1] ~= 17
			and LatchItemPool[1] ~= 175
			and LatchItemPool[1] ~= 199 then
				-- Breakfasting
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#LatchItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, LatchItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				if LatchItemPool[pickitem] == 175 then
					DadsKey = true
				end
				LatchItemPool = BackLatchItemPool
			end
		else
			if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
			or player:GetTrinket(1) == TrinketType.TRINKET_STORE_KEY then
				table.remove(LatchTrinketPool, 2)
			end
			if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
			or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP then
				table.remove(LatchTrinketPool, 1)
			end
			if LatchTrinketPool[1] ~= 19
			and LatchTrinketPool[1] ~= 83 then
				if player:HasCollectible(199) then
					table.remove(LatchItemPool, 3)
				end
				if DadsKey == true then
					table.remove(LatchItemPool, 2)
				end
				if player:HasCollectible(17) then
					table.remove(LatchItemPool, 1)
				end
				if LatchItemPool[1] ~= 17
				and LatchItemPool[1] ~= 175
				and LatchItemPool[1] ~= 199 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#LatchItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, LatchItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					if LatchItemPool[pickitem] == 175 then
						DadsKey = true
					end
					LatchItemPool = BackLatchItemPool
				end
			else
				local picktrinket = math.random(#LatchTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, LatchTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				LatchTrinketPool = BackLatchTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_LATCH_KEY, KBum.Position, Vector(0,0), KBum)
	end
end

local function PaperKey(KBum, keyfive)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local PaperItemPool = {17,175,199,343}	-- 17 = Skeleton Key, 175 = Dads Key, 199 = Moms Key, 343 = Latch Key
	local BackPaperItemPool = {17,175,199,343}
	-- Trinket tables
	local PaperTrinketPool = {83}		-- 83 = Store Key
	local BackPaperTrinketPool = {83}
	if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
	or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP then	-- 19 = Paper Clip
		if keyfive < 50 then
			if player:HasCollectible(343) then
				table.remove(PaperItemPool, 4)
			end
			if player:HasCollectible(199) then
				table.remove(PaperItemPool, 3)
			end
			if DadsKey == true then
				table.remove(PaperItemPool, 2)
			end
			if player:HasCollectible(17) then
				table.remove(PaperItemPool, 1)
			end
			if PaperItemPool[1] ~= 17
			and PaperItemPool[1] ~= 175
			and PaperItemPool[1] ~= 199
			and PaperItemPool[1] ~= 343 then
				-- Breakfasting
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#PaperItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, PaperItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				if PaperItemPool[pickitem] == 175 then
					DadsKey = true
				end
				PaperItemPool = BackPaperItemPool
			end
		else
			if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
			or player:GetTrinket(1) == TrinketType.TRINKET_STORE_KEY then
				table.remove(PaperTrinketPool, 1)
			end
			if PaperTrinketPool[1] ~= 83 then
				if player:HasCollectible(343) then
					table.remove(PaperItemPool, 4)
				end
				if player:HasCollectible(199) then
					table.remove(PaperItemPool, 3)
				end
				if DadsKey == true then
					table.remove(PaperItemPool, 2)
				end
				if player:HasCollectible(17) then
					table.remove(PaperItemPool, 1)
				end
				if PaperItemPool[1] ~= 17
				and PaperItemPool[1] ~= 175
				and PaperItemPool[1] ~= 199
				and PaperItemPool[1] ~= 343 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#PaperItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, PaperItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					if PaperItemPool[pickitem] == 175 then
						DadsKey = true
					end
					PaperItemPool = BackPaperItemPool
				end
			else
				local picktrinket = math.random(#PaperTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, PaperTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				PaperTrinketPool = BackPaperTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, TrinketType.TRINKET_PAPER_CLIP, KBum.Position, Vector(0,0), KBum)
	end
end

local function StoreKey(KBum, keysix)
	local player = Isaac.GetPlayer(0)
	-- tables which contain the items Key Bum can pull from
	-- Item tables
	local StoreItemPool = {17,175,199,343}	-- 17 = Skeleton Key, 175 = Dads Key, 199 = Moms Key, 343 = Latch Key
	local BackStoreItemPool = {17,175,199,343}
	-- Trinket tables
	local StoreTrinketPool = {19}		-- 19 = Paper Clip
	local BackStoreTrinketPool = {19}
	if player:GetTrinket(0) == TrinketType.TRINKET_STORE_KEY
	or player:GetTrinket(1) == TrinketType.TRINKET_STORE_kEY then
		if keysix < 50 then
			if player:HasCollectible(343) then
				table.remove(StoreItemPool, 4)
			end
			if player:HasCollectible(199) then
				table.remove(StoreItemPool, 3)
			end
			if DadsKey == true then
				table.remove(StoreItemPool, 2)
			end
			if player:HasCollectible(17) then
				table.remove(StoreItemPool, 1)
			end
			if StoreItemPool[1] ~= 17
			and StoreItemPool[1] ~= 175
			and StoreItemPool[1] ~= 199
			and StoreItemPool[1] ~= 343 then
				-- Breakfasting
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
			else
				local pickitem = math.random(#StoreItemPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, StoreItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
				if StoreItemPool[pickitem] == 175 then
					DadsKey = true
				end
				StoreItemPool = BackStoreItemPool
			end
		else
			if player:GetTrinket(0) == TrinketType.TRINKET_PAPER_CLIP
			or player:GetTrinket(1) == TrinketType.TRINKET_PAPER_CLIP	 then
				table.remove(StoreTrinketPool, 1)
			end
			if StoreTrinketPool[1] ~= 83 then
				if player:HasCollectible(343) then
					table.remove(StoreItemPool, 4)
				end
				if player:HasCollectible(199) then
					table.remove(StoreItemPool, 3)
				end
				if DadsKey == true then
					table.remove(StoreItemPool, 2)
				end
				if player:HasCollectible(17) then
					table.remove(StoreItemPool, 1)
				end
				if StoreItemPool[1] ~= 17
				and StoreItemPool[1] ~= 175
				and StoreItemPool[1] ~= 199
				and StoreItemPool[1] ~= 343 then
					-- Breakfasting
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_CHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
				else
					local pickitem = math.random(#StoreItemPool)
					Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, StoreItemPool[pickitem], KBum.Position, Vector(0,0), KBum)
					if StoreItemPool[pickitem] == 175 then
						DadsKey = true
					end
					StoreItemPool = BackStoreItemPool
				end
			else
				local picktrinket = math.random(#StoreTrinketPool)
				Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, StoreTrinketPool[picktrinket], KBum.Position, Vector(0,0), KBum)
				StoreTrinketPool = BackStoreTrinketPool

			end
		end
	else
		Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, TrinketType.TRINKET_STORE_KEY, KBum.Position, Vector(0,0), KBum)
	end
end






function Mod:onPickup(KBum)
	local player = Isaac.GetPlayer(0)
	local entities = Isaac.GetRoomEntities()

    	if player:HasCollectible(CollectibleType.COLLECTIBLE_KEY_BUM) then

		local rng = player:GetCollectibleRNG(CollectibleType.COLLECTIBLE_KEY_BUM)
    		local roll = rng:RandomInt(100)
		-- RNG of the synergie items
		local rngone = player:GetCollectibleRNG(CollectibleType.COLLECTIBLE_SKELETON_KEY)
    		local keyone = rngone:RandomInt(100)
		local rngtwo = player:GetCollectibleRNG(CollectibleType.COLLECTIBLE_MOMS_KEY)
    		local keytwo = rngtwo:RandomInt(100)
		local rngthree = player:GetCollectibleRNG(CollectibleType.COLLECTIBLE_DADS_KEY)
    		local keythree = rngthree:RandomInt(100)
		local rngfour = player:GetCollectibleRNG(CollectibleType.COLLECTIBLE_LATCH_KEY)
    		local keyfour = rngfour:RandomInt(100)
		local rngfive = player:GetCollectibleRNG(TrinketType.TRINKET_PAPER_CLIP)
    		local keyfive = rngfive:RandomInt(100)
		local rngsix = player:GetCollectibleRNG(TrinketType.TRINKET_STORE_KEY)
    		local keysix = rngsix:RandomInt(100)


        	-- we check all entities in the room
        	for j = 1, #entities do
            	-- collision detection
            		if entities[j].Type == EntityType.ENTITY_PICKUP
            		and KBum.Position:Distance(entities[j].Position) <= 150
            		then
                		if entities[j]:GetSprite():IsPlaying("Collect")
                		and entities[j]:GetData().Picked == nil then
                    			entities[j]:GetData().Picked = true
                   	 		-- pickup specific action
                    			if entities[j].Variant == PickupVariant.PICKUP_KEY then
                        			if entities[j].SubType == KeySubType.KEY_NORMAL
						or entities[j].SubType == KeySubType.KEY_CHARGED then
							-- key counter
							BumsKeys = BumsKeys + 1
							-- if BumsKeys == 1 then
								-- Isaac.DebugString("BumsKeys + 1")
							-- depending on how high the key counter Key Bum can spawn different things
							if BumsKeys == 7 then
								if player:HasCollectible(CollectibleType.COLLECTIBLE_SKELETON_KEY)
								and player:HasCollectible(CollectibleType.COLLECTIBLE_MOMS_KEY)
								and player:HasCollectible(CollectibleType.COLLECTIBLE_LATCH_KEY)
								and DadsKey == true then
									if roll < 98 then
										Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_KEY, KeySubType.KEY_GOLDEN, entities[j].Position, Vector(0,0), KBum)
										BumsKeys = 0	-- reset the counter to 0
										Mod:SaveData(BumsKeys)
									else
										Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_LOCKEDCHEST, ChestSubType.CHEST_CLOSED, KBum.Position, Vector(0,0), KBum)
										BumsKeys = 0	-- reset the counter to 0
										Mod:SaveData(BumsKeys)
									end
								else
									if roll < 50 then
										Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_KEY, KeySubType.KEY_GOLDEN, entities[j].Position, Vector(0,0), KBum)
										BumsKeys = 0	-- reset the counter to 0
										Mod:SaveData(BumsKeys)
									end
								end
							elseif BumsKeys >= 12 then
								-- the chance to drop something increases with every key picked up
								if BumsKeys == 12 then
									KBumExtra = 0
									Mod:SaveData(KBumExtra)
								elseif BumsKeys == 13 then
									KBumExtra = KBumExtra + 10
									Mod:SaveData(KBumExtra)
								elseif BumsKeys == 14 then
									KBumExtra = KBumExtra + 10
									Mod:SaveData(KBumExtra)
								elseif BumsKeys == 15 then
									KBumExtra = KBumExtra + 15
									Mod:SaveData(KBumExtra)
								elseif BumsKeys == 16 then
									KBumExtra = KBumExtra + 15
									Mod:SaveData(KBumExtra)
								elseif BumsKeys == 17 then
									KBumExtra = KBumExtra + 15
									Mod:SaveData(KBumExtra)
								end
								if roll < (35 + KBumExtra) then
									local rolltwo = rng:RandomInt(120)
									if rolltwo < 10 then
										SkeletonKey(KBum, keyone)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
									elseif rolltwo < 30 then
										MomKey(KBum, keytwo)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
									elseif rolltwo < 50 then
										DadKey(KBum, keythree)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
										DadsKey = true
									elseif rolltwo < 70 then
										LatchKey(KBum, keyfour)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
									elseif rolltwo < 95 then
										PaperKey(KBum, keyfive)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
									else
										StoreKey(KBum, keysix)
										BumsKeys = 0
										Mod:SaveData(BumsKeys)
									end
								end
							end
						end
					end
				end
			end
		end
	end
end
Mod:AddCallback(ModCallbacks.MC_FAMILIAR_UPDATE, Mod.onPickup, FamiliarVariant.KEY_BUM)