Formula

CommonFun.calcBuff_6620

function CommonFun.calcBuff_6620(srcUser, targetUser, a, b, c, d, lv)
  if srcUser == nil or targetUser == nil then
    return 0
  end
  local A = 0
  if a <= lv then
    A = b * (lv - a) + c
  end
  return A
end