on skript load:
	set {_player} to "MHF_BackPack" parsed as offline player
	set {BackPack::Item} to skull of {_player}
	register new shaped recipe for {BackPack::Item} named "&6Backpack" using leather, leather, leather, lead, chest, lead, leather, leather, leather

on right click with mob head item:
	name of tool is "&6BackPack"
	cancel event
	set {_itemstack} to "%tool of player%"
	set {_split::*} to {_itemstack} split at " "
	set {_number} to {_split::1} parsed as number
	if parse error is set:
		set {_number} to 1
	if {_number} > 1:
		message "&cError: You are not allowed to stack BackPacks"
		stop
	set {_lore} to lore of tool
	if {_lore} is "":
		add 1 to {BackPack::ID}
		set lore of tool to "&7ID:&8 %{BackPack::ID}%"
	set {_lore} to lore of tool
	set {_splitlore::*} to {_lore} split at " "
	open chest with 1 row named "&8BackPack &7ID: %{_splitlore::2}%" to player
	set {BackPack::Open::%player%} to {_splitlore::2}
	wait 2 ticks
	if {BackPack::Open::%player%} is set:
		loop {BackPack::Inventory::%{_splitlore::2}%::*}:
			set {_n} to loop-index parsed as an integer
			set slot {_n} of the player's current inventory to loop-value
	while {BackPack::Open::%player%} is set:
		wait 1 tick
		loop 9 times:
			set {_item} to slot "%loop-number - 1%" parsed as an integer of current inventory of player
			set {BackPack::Inventory::%{BackPack::Open::%player%}%::%loop-number - 1%} to {_item}

on inventory click:
	if {BackPack::Open::%player%} is set:
		if name of clicked item is "&6BackPack":
			cancel event

on inventory close:
	if {BackPack::Open::%player%} is set:
		clear {BackPack::Open::%player%}