Cutting SP Use Pending on HP Percentage

[rexkim]

Is there a script to cut the use of SP in skills and the like pending on the actor's current hp?

Like...

If HP is 100%, SP use is 100%.
If HP is 10%, SP use is 50%.

Something like that.

Or even better, have a state that cuts the cost of SP usage. Thanks.

 

[poccil]

The following helping function determines the SP cost of a skill using state number 10.  It should
be placed in a new script section.

class Game_Battler
 def sp_cost(skill)
  cost=skill.sp_cost
  if self.state?(10) # assuming state 10
   cost-=Integer(cost*0.4*self.hp/self.maxhp)
  end
  return cost
 end
end

The scripts can then be modified thus:

Lines 15-17 of script section Game_Battler 3:

    if self.sp_cost($data_skills[skill_id]) > self.sp
      return false
    end

Lines 340-341 of script section Scene_Battle 4:

    # Use up SP
    @active_battler.sp -= @active_battler.sp_cost(@skill)

Line 75 of script section Window_Skill:

    self.contents.draw_text(x + 232, y, 4, 32, @actor.sp_cost(skill).to_s, 2)

 

[rexkim]

Hmm thanks. It works but it doesn't work well for me. =/

Instead of dropping, it seems to drop, pop back up again, etc.

For example, my health was continuously dropping. Base SP cost was 10. After losing a bit of health, the cost dropped to 9. Then 8. All of a sudden, it went back to 10 the next turn when I had half or so health. =/