DarkBum

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

function Mod:onInit(player)
	local player = Isaac.GetPlayer(0)
	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(200, 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, Vector(400, 250), Vector(0,0), player)
		-- Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_COLLECTIBLE, CollectibleType.COLLECTIBLE_MOMS_KEY, Vector(250, 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_DARK_BUM, Vector(275, 175), Vector(0,0), player)
		-- if Game():GetPlayer == Isaac
			-- Isaac.Spawn(EntityType.ENTITY_PICKUP, PickupVariant.PICKUP_TRINKET, TrinketType.TRINKET_PAPER_CLIP, Vector(150, 250), Vector(0,0), player)
		-- end
	end
end
Mod:AddCallback(ModCallbacks.MC_POST_PEFFECT_UPDATE, Mod.onInit)


function Mod:onPickup(DaBum)
	local player = Isaac.GetPlayer(0)	-- get the player
	local entities = Isaac.GetRoomEntities()	-- all entities in the room
    	if player:HasCollectible(CollectibleType.COLLECTIBLE_DARK_BUM) then
		for _, entity in pairs(entities) do
			if entity.Type == EntityType.ENTITY_FAMILIAR
			and entity.Variant == FamiliarVariant.DARK_BUM then
				if entity:GetSprite():IsPlaying("Spawn") then
					if entity:GetSprite():GetFrame() == 1 then
						for j = 1, #entities do
							local entitis = entities[j]
							if entitis.Type == EntityType.ENTITY_PICKUP
							and entitis.Variant == PickupVariant.PICKUP_HEART
							and entitis.SubType == HeartSubType.HEART_SOUL then
								-- if entitis:GetFrame() == 1
								if entitis.SpawnerType == EntityType.ENTITY_FAMILIAR
								and entitis.SpawnerVariant == FamiliarVariant.DARK_BUM then
									entitis:ToFamiliar():Morph(EntityType.ENTITY_FAMILIAR, FamiliarVariant.BLUE_SPIDER, 0, true)
								end
							end
						end
					end
				end
			end
		end
	end
end
Mod:AddCallback(ModCallbacks.MC_FAMILIAR_UPDATE, Mod.onPickup, FamiliarVariant.DARK_BUM)