Question Calculating saving throw in a DG script

set actor %self.fighting% if (%already_fighting%) wait 6 secs unset already_fighting else switch %random.3% case 1 if (%actor.affect(CHARM)% || %actor.is_pc%) if (%actor.str% <= 14) %send% %actor% You resist the undead tree's attempt to draw the strength from your body. %echoaround% %actor% %actor.name% resists the undead tree's attempt to draw the strength from %actor.hisher% body. elseif (%actor.str% > 14) eval ss %actor.saving_spell% if (%ss% < 15) %send% %actor% %self.name% attempts to draw the strength from your body, but fails because you are already in a weakened state. %echoaround% %actor% %self.name% attempts to draw the strength from %actor.hisher% body, but %actor.heshe% is too frail to be weakened any further right now. elseif (%ss% >= 15) eval roll %random.100% if (%roll% >= 50) %send% %actor% You feel the undead tree draw the strength out of your body. %echoaround% %actor% %self.name% draws strength from %actor.name%'s body. dg_affect %actor% STR -1 5 elseif (%roll% < 50) %send% %actor% You resist the undead tree's attempt to draw the strength from your body. %echoaround% %actor% %actor.name% resists the undead tree's attempt to draw the strength from %actor.hisher% body. else %send% %actor% You resist the undead tree's attempt to draw the strength from your body. %echoaround% %actor% %actor.name% resists the undead tree's attempt to draw the strength from %actor.hisher% body. end end end end break default break done set already_fighting 1 global already_fighting end