Check if a list contains a player

[AQika]

I am making this lava rising minigame, and im trying to make it so that a player does not get the kit again if he reconnects to the server

I am having issues at checking if the player is not contained in the list {hasbeenhere::*}

on join:
    set join message to "&7[&a+&7] %player%"
    wait 5 ticks
    if {started} is true:
        if {isLavaRising} is true:
            wait 1 tick
            make console execute command "/mvtp %player% lava"
            wait 2 tick
            set gamemode of player to spectator
            clear player's inventory
            wait 2 tick
            send "&eYou joined late."
            send "&aBut dont worry, more events are starting."
        else if {isLavaRising} is false:
            wait 1 tick
            make console execute command "/mvtp %player% lava"
            set gamemode of player to survival
            loop {hasbeenhere::*}:
                broadcast "%loop-value%"
                if loop-value != player:
                    clear player's inventory
                    kit(player)
                    send "&eYou joined late but you can still play!"
                    add player to {hasbeenhere::*}
            add player to {alive::*}
    else if {started} is false:
        make console execute command "/mvtp %player% world"
        clear player's inventory

 

[i_Lectus]

To check if a list contains a player you can simply use;

if {hasbeenhere::*} contains player:

 

[AQika]

To check if a list contains a player you can simply use;

if {hasbeenhere::*} contains player:

It did not fix it since contain is broken, but i used a function someone made that replicates contain! Ty for the idea