How to make a player take less damage?

[Vini]

So, I've been trying to make a skript where a player takes less damage depending on how much their
{presistance::%attacker's uuid%} is (1 is the least and 20 is the most)
Now I've tried many different codes but the best I've came up with is this:

on damage:
    if victim is a player:
        if {presistance::%attacker's uuid%} is {presistance::%attacker's uuid%}:
            decrease damage by {presistance::%attacker's uuid%}*0.15

This code is bad, because it doesn't actually work, even thought I tested it with players, mobs, void etc.
I would be very grateful if someone helped me fix this issue.
Thank you!

 

[Neelix_bear]

this should work!

on damage of a player:
    if attacker is a player:
        if {presistance::%attacker's uuid%} is set:
            set damage to damage - {presistance::%attacker's uuid%}*0.15

also i think you meant "persistance" not "presistance"

 

[Jake]

Fixed your typo.
Use by player
Changed attacker to victim since that's what you meant.
Idk what you wanted to do with *0.15, so I made a formula that makes it so if the victim's persistance is 20 they'll take no damage and if it's 1 they'll take the full damage.

on damage of player by player:
  {persistance::%victim's uuid%}
  reduce damage by floor(((21-{presistance::%victim's uuid%})*5)% of damage)

 

[Vini]

Fixed your typo.
Use by player
Changed attacker to victim since that's what you meant.
Idk what you wanted to do with *0.15, so I made a formula that makes it so if the victim's persistance is 20 they'll take no damage and if it's 1 they'll take the full damage.

on damage of player by player:
  {persistance::%victim's uuid%}
  reduce damage by floor(((21-{presistance::%victim's uuid%})*5)% of damage)

Tank you, but does they take no damage mean they don't take damage even with a sharp 255 sword?

 

[Jake]

Tank you, but does they take no damage mean they don't take damage even with a sharp 255 sword?

pretty much, if you want SOME damage to be done even if it's maxed then just change the 21 to a 20, basically makes it so the max damage nullification is 95%