Vampirism code

#==================================================
# Add an OnDealingHit handler to apply the healing
Battle::AbilityEffects::OnDealingHit.add(:VAMPIRISM,
  proc { |ability, user, targets, move, battle|
    # Apply healing to the user
    next if !move.bitingMove?
    next if !user.canHeal?
    heal = (targets.damageState.hpLost / 2)
    next if heal <= 0
    battle.pbShowAbilitySplash(user)
    user.pbRecoverHP(heal)
    if Battle::Scene::USE_ABILITY_SPLASH
        battle.pbDisplay(_INTL("{1}'s stole some health!", user.pbThis))
      else
        battle.pbDisplay(_INTL("{1}'s {2} recovers it a bit!", user.pbThis,
          user.abilityName))
    end
    battle.pbHideAbilitySplash(user)
  }
)