I want to add a cooldown to this script

[Rentier]

So im currently working on a script and i want to add a 30s cooldown to the items ability. I use a netherite sword and if you right click it, it deals 5 hearts of damage to the targeted entity. Heres the code:

on rightclick:
if player is holding a netherite sword:
damage the targeted entity by 5 hearts
loop 40 times:
set {_location} to location of the targeted entity
add random number between -2 and 2 to x-coord of {_location}
add random number between -2 and 2 to y-coord of {_location}
add random number between -2 and 2 to z-coord of {_location}

play red colored dust at {_location} to the player
play redstone block breaking at {_location} to the player

 

[Gryphon2029]

havent tested

on rightclick:
    player is holding a netherite sword
    if difference between now and metadata tag "COOLDOWN" of player is less than 30 seconds:
        message "&fWait %round(difference between now and metadata tag "COOLDOWN" of player)% seconds before use again!" to player
    else:
        damage the targeted entity by 5 hearts
        loop 40 times:
            set {_location} to location of the targeted entity
            set {_location} to {_location} ~ vector(random number between 2 and -2, random number between 2 and -2, random number between 2 and -2)
            play red colored dust at {_location} to the player
        play redstone block breaking at targeted entity's location to the player
        set metadata tag "COOLDOWN" of player to now

 

[Rentier]

havent tested

on rightclick:
    player is holding a netherite sword
    if difference between now and metadata tag "COOLDOWN" of player is less than 30 seconds:
        message "&fWait %round(difference between now and metadata tag "COOLDOWN" of player)% seconds before use again!" to player
    else:
        damage the targeted entity by 5 hearts
        loop 40 times:
            set {_location} to location of the targeted entity
            set {_location} to {_location} ~ vector(random number between 2 and -2, random number between 2 and -2, random number between 2 and -2)
            play red colored dust at {_location} to the player
        play redstone block breaking at targeted entity's location to the player
        set metadata tag "COOLDOWN" of player to now

doesnt work, but i dont get an error is just doesnt do anything when i rightclick

 

[Rentier]

so neither your script (or my script) work now, i cant figure out what changed didnt change anything in the server or changed any plugins