on rightclick on ender chest:
    if player's tool is tripwire hook named "&d&lKlucz Ruletki":
        remove 1 tripwire hook named "&d&lKlucz Ruletki" from player
        send "&6Losowanie"
        wait 3 second
        send "&c3"
        wait 2 second
        send "&c2"
        wait 1 second
        send "&c1"  
        chance of 1%:
                give 1 Red Stained Glass Pane named "&4Czerwony" to player
        chance of 5%:
                give 1 Green Stained Glass Pane named "&aZielony" to player
        chance of 10%:
                give 1 Blue Stained Glass Pane named "&1Niebieski" to player
        chance of 15%:
                give 1 Yellow Stained Glass Pane named "&6Zolty" to player
        chance of 20%:
                give 1 Black Stained Glass Pane named "&0Czarny" to player