command /duelaccept [<offline player>]:
    trigger:
        if arg 1 is set:
            if {duelrequest.%arg 1%} is true:
                if {gamestart} is false:
                    send "&7&oYou have just accepted %arg 1%'s duel!"
                    send "&7&oYou have just been accepted to %player%'s duel!" to arg 1
                    teleport player to {spawn1}
                    teleport arg 1 to {spawn2}
                    clear player's inventory
                    clear arg 1's inventory
                    set player's gamemode to survival
                    set arg 1's gamemode to survival
                    give player 1 iron sword named "&b&lPRACTICE"
                    give player 1 fishing rod named "&b&lPRACTICE"
                    give player 1 bow named "&b&lPRACTICE"
                    give player 1 flint and steel named "&b&lPRACTICE"
                    give player 64 steak named "&b&lPRACTICE"
                    give player 64 arrows named "&b&lPRACTICE"
                    equip player with all iron armour
                    give arg-1  iron sword named "&b&lPRACTICE"
                    give arg-1 fishing rod named "&b&lPRACTICE"
                    give arg-1 bow named "&b&lPRACTICE"
                    give arg-1 flint and steel named "&b&lPRACTICE"
                    give arg-1 64 steak named "&b&lPRACTICE"
                    give arg-1 64 arrows named "&b&lPRACTICE"
                    equip arg 1 with all iron armour
                    set {gamestart} to true
                if {gamestart} is true:
                    send "&c&oThere is &c&n&oalready &7&oa game started!"