on join:
	set the player's tablist name to "&d%player% &c%{level::%player%}%"

every seconds:
	loop all players:
		if {level::%loop-player%} is not set:
			set {level::%loop-player%} to 1
		if {exp::%loop-player%} is not set:
			set {exp::%loop-player%} to 0
		if {needexp::%loop-player%} is not set:
			set {needexp::%loop-player%} to 30

every tick:
	loop all players:
		if loop-player has 1 nether star:
			remove 1 nether star from loop-player
			add 1 to {exp::%loop-player%}
			play entity_experience_orb_pickup at loop-player with volume 1 and pitch 1

every 1 seconds:
	loop all players:
		set action bar of loop-player to "&d%loop-player% &cLv.%{level::%loop-player%}% &8[&a%{exp::%loop-player%}%&9/&b%{needexp::%loop-player%}%&8]"

every tick:
	loop all players:
		if {exp::%loop-player%} >= {needexp::%loop-player%}:
			set {exp::%loop-player%} to 0
			add 1 to {level::%loop-player%}
			set {needexp::%loop-player%} to round(({level::%loop-player%} + 1) * 1.5 + ({needexp::%loop-player%}) * 1.05)
			message "&e=========================" to loop-player
			message "&a&lLevel Up!!" to loop-player
			message "&a現在の&eレベル&8: &c&l%{level::%loop-player%}%" to loop-player
			message "&e=========================" to loop-player
			play entity_firework_blast at loop-player with volume 1 and pitch 1
			play entity_firework_twinkle at loop-player with volume 1 and pitch 1

every seconds:
	loop all players:
		set the loop-player's tablist name to "&d%loop-player% &c%{level::%loop-player%}%"