Problem z damage

on right click with golden hoe:
    if name of player's tool is "&6&lPISTOLET":
        if {pistolet.use::%player%} is true:
            shoot snowball from player with speed 2
            set {pistolet.use::%player%} to false
            wait 1 seconds
            set {pistolet.use::%player%} to true
            set {type.snowball.%uuid of shot projectile%} to "Pistol"
        if {pistolet.use::%player%} is false:
            send player title "&6Przeladowuje!" with subtitle "&eZaczekaj!" for 1 seconds


on damage:
    damage is caused by projectile
    {type.snowball.%uuid of projectile%} is "Pistol":
        damage victim by 3
        send "&6Trafiles &c%victim%" to attacker

Gdy klikam prawy przycisk to wystrzeliwuje sniezke ale damage juz nie zadaje.