How to make a move with a chance to 1 hit KO?

[parkerw1997]

What would the effect for a move with a chance to 1 hit ko be?
For example, a Ghost type move with 50 power and a 10 percent chance to 1 Hit KO.

 

[James Davy]

Would that OHKO probability be altered by abilities/effects such as Serene Grace, Sheer Force, Shield Dust and the Water/Fire Pledge combo?

Also as a side note, the OHKO effect would be blocked by a target with the Sturdy ability.

 

[parkerw1997]

Yeah, that's what I'd like it to do as well.

 

[James Davy]

class PokeBattle_Move_nnn < PokeBattle_Move [COLOR="Green"]# change to a new function code[/COLOR]
  def pbAdditionalEffect(attacker,opponent)
    return if opponent.damagestate.substitute
    return if opponent.level>attacker.level
    if !attacker.hasMoldBreaker && opponent.hasWorkingAbility(:STURDY)
      @battle.pbDisplay(_INTL("{1} was protected by {2}!",opponent.pbThis,PBAbilities.getName(opponent.ability)))  
      return
    end
    if !opponent.fainted?
      opponent.pbReduceHP(opponent.hp)
      opponent.pbFaint if opponent.fainted?
      @battle.pbDisplay(_INTL("It's a one-hit KO!"))
    end
  end
end

The effect will not trigger if the opponent is of a higher level as is the case for OHKO moves. The rest of the data can be defined in the PBS file.