on click:
    if player is holding grey dye:
        remove grey dye from player
        command "scoreboard teams leave %player% join"
        send "&cゲームから抜けました"
        wait 5 ticks
        give lime dye named "&eクリックで参加する" to player

on click:
    if player is holding lime dye:
        remove lime dye from player
        command "scoreboard teams join %player% join"
        send "&eゲームに参加しました"
        wait 5 ticks
        give grey dye named "&cクリックで抜ける" to player