CommonFun.CalcDef

function CommonFun.CalcDef(srcUser, targetUser, params)
  local Buff = srcUser:HasBuffID(24700)
  local targetRace = targetUser.race
  if srcUser:HasBuffID(49320) and srcUser:HasBuffID(49325) then
  elseif srcUser:HasBuffID(49320) then
    targetRace = 2
  end
  local Def2 = targetUser:GetProperty("Def")
  local Vit2 = targetUser:GetProperty("Vit")
  local VitPer2 = targetUser:GetProperty("VitPer")
  local DefPer2 = targetUser:GetProperty("DefPer")
  local RealDef = Def2 - Vit2
  if Def2 <= 0 then
    Def2 = 0
  end
  if Buff == true and targetRace == 1 then
    RealDef = 0
  end
  if RealDef <= 0 then
    RealDef = 0
  end
  local IgnoreDef = 0
  local IgnoreDef1 = srcUser:GetProperty("IgnoreDef")
  local IgnoreDef2 = srcUser:GetProperty("IgnoreEquipDef")
  if targetUser.boss or targetUser.mini then
    IgnoreDef = IgnoreDef1
  else
    IgnoreDef = IgnoreDef1 + IgnoreDef2
  end
  if params ~= nil then
    local SkillID, SkillLevel = CommonFun.UnmergeSkillID(params.skillIDAndLevel)
    local BuffIDs, IgnoreDefAdd = CommonFun.EquipBuffAndIgnoreDef(SkillID)
    local TempAdd = true
    for i = 1, #BuffIDs do
      if BuffIDs[i] ~= 0 and srcUser:HasBuffID(BuffIDs[i]) == false then
        TempAdd = false
        break
      end
    end
    if TempAdd then
      IgnoreDef = IgnoreDef + IgnoreDefAdd
    end
  end
  local Card1 = srcUser:GetEquipCardNum(7, 24667)
  if (targetUser.boss or targetUser.mini) and 0 < Card1 and srcUser:HasBuffID(81002110) then
    IgnoreDef = IgnoreDef + Card1 * 0.25 + 0.05
  elseif (targetUser.boss or targetUser.mini) and 0 < Card1 then
    IgnoreDef = IgnoreDef + Card1 * 0.25
  end
  if (targetUser.boss or targetUser.mini) and srcUser:HasBuffID(57710) then
    local RefineLv2 = srcUser:GetEquipedRefineLv(2)
    IgnoreDef = IgnoreDef + RefineLv2 * 0.01
  end
  local Card2 = srcUser:GetEquipCardNum(7, 23238)
  if (targetUser.boss or targetUser.mini or targetUser:GetNpcID() ~= 0) and 0 < Card2 then
    local RefineLv = srcUser:GetEquipedRefineLv(7)
    IgnoreDef = IgnoreDef + Card2 * (0.2 + RefineLv * 0.02)
  end
  if nil ~= CommonFun.Shape and CommonFun.Shape.L == targetUser.shape and srcUser:HasBuffID(90004494) then
    IgnoreDef = IgnoreDef + 0.2
  end
  if nil ~= CommonFun.Shape and CommonFun.Shape.L == targetUser.shape and srcUser:HasBuffID(90004384) then
    IgnoreDef = IgnoreDef + 0.3
  end
  if targetUser:GetBuffActive(137321) then
    IgnoreDef = 0
  end
  local pvpReduce = 0
  local mapid, maptype = srcUser:GetMapInfo()
  if (maptype == 2 or maptype == 4) and targetUser:GetNpcID() ~= 40022 then
    DefPer2 = DefPer2 < -1 and -1 or 1 < DefPer2 and 1 or DefPer2
    DefPer2 = math.floor(DefPer2 * 1000) / 1000
    DefPer2 = DefPer2 + 0.5 * (1 - math.sin(DefPer2 * 3.14 / 2))
    local Master = targetUser:GetMasterUser()
    if targetUser:GetNpcID() == 0 or Master ~= nil then
      pvpReduce = 0.2
    end
  end
  local DefFinal = RealDef * (1 + DefPer2 - IgnoreDef + pvpReduce) + Vit2 * (1 + VitPer2 + pvpReduce * 5)
  if DefFinal < 0 then
    DefFinal = 0
  end
  local div = 4000 + DefFinal * 10
  div = div ~= 0 and div or 1
  local DefReduc1 = (4000 + DefFinal) / div
  local Atk = srcUser:GetProperty("Atk")
  local AtkPer = srcUser:GetProperty("AtkPer")
  local AtkFinal = Atk * (1 + AtkPer)
  local DefReduc2 = 1 / (1 + 6 * DefFinal / AtkFinal)
  local DefReduc = math.max(DefReduc1, DefReduc2)
  return DefReduc
end