on right click on entity:
    entity's display name is "biolog"
    if {misjaBiologNumer::%player%} is set:
        if {misjaBiologNumer::%player%} is 1:
            if player's tool is 5 spider eye named "Oko Rycerza":
                set player's tool to (item amount of player's tool - 5) of player's tool
                send "&aWykonałeś zadanie nr 1!" and "&aNagroda: &b1 diament" to player
                give player 1 diamond
                set {misjaBiologNumer::%player%} to 2 
                send "&aPrzynieś mi 5 oczy rycerza!" to player
                stop
            send "&cMusisz przynieść mi 5 oczy rycerza! Musisz trzymać je w ręce!" to player
            stop
        else if {misjaBiologNumer::%player%} is 2:
            if player's tool is 10 spider eye named "Oko Wojownika":
                set player's tool to (item amount of player's tool - 5) of player's tool
                send "&aWykonałeś zadanie nr 2!" and "&aNagroda: &b1 diament" to player
                give player 1 diamond
                set {misjaBiologNumer::%player%} to 3
                send "&aPrzynieś mi 5 oczy wojownika!" to player
                stop
            send "&cMusisz przynieść mi 5 oczy wojownika! Musisz trzymać je w ręce!" to player
            stop
        else if {misjaBiologNumer::%player%} is 3:
            if player's tool is 5 white tulip named "Kwiatek Zombie":
                set player's tool to (item amount of player's tool - 5) of player's tool
                send "&aWykonałeś zadanie nr 2!" and "&aNagroda: &b1 diament" to player
                give player 1 diamond
                set {misjaBiologNumer::%player%} to 3
                send "&aPrzynieś mi 5 kwiatków zombie!" to player
                stop
    send "&aPrzynieś mi 5 kwiatków zombie!" to player
    set {misjaBiologNumer::%player%} to 1
    
on death:
    if attacker is a player:
        if victim's name is "&7Rycerz &3( lvl 1-10 )":
            chance of 100%:
                give spider eye named "Oko Rycerza" to the attacker
                
on death:
    if attacker is a player:
        if victim's name is "&7Wojownik &3( lvl 10-20 )":
            if {misjaBiologNumer::%player%} is 2:
                chance of 100%:
                    give spider eye named "Oko Wojownika" to the attacker