Help with adding a new in-battle weather and its effect

[Boeing747]

I can't seem to get this weather to do what I want it to do.

when PBWeather::TORNADO
        @weatherduration=@weatherduration-1 if @weatherduration>0
        if @weatherduration==0
          pbDisplay(_INTL("The winds died down."))
          @weather=0
        else
          pbCommonAnimation("Tornado",nil,nil)
          pbDisplay(_INTL("The winds are howling!"));
          if pbWeather==PBWeather::TORNADO
            for i in priority
              next if i.hp<=0
              if !i.pbHasType?(:DARK) && !i.pbHasType?(:WATER) &&
                !isConst?(i.ability,PBAbilities,TORNADOWATCH) &&
                !isConst?(i.ability,PBAbilities,:OVERCOAT) &&
                 ![0xCA,0xCB].include?(PBMoveData.new(i.effects[PBEffects::TwoTurnAttack]).function)  &&
                 !isConst?(i.item,PBItems,:SAFETYGOGGLES)
                pbDisplay(_INTL("{1} was struck by debris!",i.pbThis))
                @scene.pbDamageAnimation(i,0)
                i.pbReduceHP((i.totalhp/8).floor)
                if i.hp<=0
                  return if !i.pbFaint
                end
              end
            end
          end
        end

I want this weather to strike only Pokemon without the DARK or WATER types, Pokemon without the Tornado Watch and Overcoat Abilities, Pokemon that aren't digging or diving, or Pokemon without Safety Goggles. The script does squat in the game. Are there any suggestions to go about fixing it?

 

[mej71]

1 thing,

!isConst?(i.ability,PBAbilities,TORNADOWATCH)

is missing a colon.

Also, you say it does squat, describe that more please. Does the tornado weather start, and just doesn't have the end round effects. Does it not start at all?