calcDamage / calcBuff explorer

function CommonFun.calcBuff_100120(srcUser, targetUser, a, b, c, d, lv)
  if srcUser == nil or targetUser == nil then
    return 0
  end
  local m = 0
  if targetUser:GetNpcID() ~= 0 and srcUser:HasBuffID(1004041) then
    m = 1
  end
  local skill_lv1 = srcUser:GetLernedSkillLevel(5401)
  local A = skill_lv1 * m * 20
  return A
end