CommonFun.CalcCritRate

function CommonFun.CalcCritRate(srcUser, targetUser, skillParams)
  local Cri = srcUser:GetProperty("Cri")
  local CriRes2 = targetUser:GetProperty("CriRes")
  local Hp = targetUser:GetProperty("Hp")
  local MaxHp = targetUser:GetProperty("MaxHp")
  local targetRace = targetUser.race
  if srcUser:HasBuffID(49320) and srcUser:HasBuffID(49325) then
  elseif srcUser:HasBuffID(49320) then
    targetRace = 2
  end
  local DefAttr2 = targetUser:GetProperty("DefAttr")
  local AttrEffect = srcUser:GetProperty("AttrEffect2")
  local bits = CommonFun.getBits(AttrEffect)
  local skillLevel = srcUser:GetLernedSkillLevel(250)
  local rate = Cri - CriRes2
  local Card1 = srcUser:GetEquipCardNum(7, 20097)
  local Card2 = srcUser:GetEquipCardNum(7, 20030)
  local Card3 = srcUser:GetEquipCardNum(7, 20031)
  local Card4 = srcUser:GetEquipCardNum(7, 24016)
  local Card5 = srcUser:GetEquipCardNum(7, 20114)
  local Card6 = srcUser:GetEquipCardNum(3, 20160)
  local Card7 = srcUser:GetEquipCardNum(3, 20173)
  local Card8 = srcUser:GetEquipCardNum(7, 20187)
  local Card9 = srcUser:GetEquipCardNum(7, 20197)
  local Card10 = srcUser:GetEquipCardNum(7, 20200)
  local a = 0
  local b = 0
  local c = 0
  local d = 0
  local e = 0
  local f = 0
  local g = 0
  local h = 0
  local i = 0
  if targetRace == 4 then
    a = Card1 * 20
  end
  if targetRace == 5 then
    b = Card2 * 20
  end
  if targetRace == 6 then
    c = Card3 * 20
  end
  if bits[CommonFun.AttrEffect2.MushiCrit] == 1 and (targetRace == 3 or DefAttr2 == 9) then
    d = Card4 * 9
  end
  if targetRace == 1 then
    e = Card5 * 10
  end
  if targetRace == 7 then
    f = Card6 * 20 + Card8 * 20
  end
  if targetRace == 1 or targetRace == 4 then
    g = Card7 * 15
  end
  if targetRace == 10 then
    h = Card9 * 20
  end
  if targetRace == 2 then
    i = Card10 * 20
  end
  local mapid, maptype = srcUser:GetMapInfo()
  local CriDef = 0
  if (maptype == 2 or maptype == 4) and targetUser:GetNpcID() ~= 40022 then
    CriDef = math.floor((Cri - CriRes2) / 3)
    CriDef = math.max(CriDef, 0)
  end
  local Hp_rate = 0.3
  if 5 < skillLevel then
    Hp_rate = Hp_rate + (skillLevel - 5) * 0.04
  end
  if Hp <= MaxHp * Hp_rate then
    rate = Cri - CriRes2 + math.min(skillLevel * 6, 30) + a + b + c + d + e + f + g + h - CriDef
  else
    rate = Cri - CriRes2 + a + b + c + d + e + f + g + h + i - CriDef
  end
  if (targetUser:GetNpcID() ~= 0 or targetUser.boss or targetUser.mini) and srcUser:HasBuffID(64710) then
    rate = 100
  end
  if srcUser:HasBuffID(115090) or srcUser:HasBuffID(115091) then
    local Hp = srcUser:GetProperty("Hp")
    local MaxHp = srcUser:GetProperty("MaxHp")
    if Hp > MaxHp * 0.09 then
      rate = 0
    end
  end
  if targetUser:HasBuffID(159610) then
    rate = rate * 0.75
  end
  local Profession = srcUser:GetProfressionID()
  if Profession == 625 then
    rate = 0
  end
  if targetUser:GetNpcID() == 30043 then
    rate = 0
  end
  if targetUser:GetNpcID() == 56008 or targetUser:GetNpcID() == 56009 or targetUser:GetNpcID() == 56010 or targetUser:GetNpcID() == 56011 or targetUser:GetNpcID() == 56012 or targetUser:GetNpcID() == 56013 then
    rate = 0
  end
  if targetUser:HasBuffID(20310140) and (targetUser:HasBuffID(116070) or targetUser:HasBuffID(116072)) then
    rate = 0
  end
  if targetUser:HasBuffID(151028) then
    rate = 0
  end
  local skillID = skillParams.id
  if math.floor(skillID / 1000) == 5400 or math.floor(skillID / 1000) == 5404 then
    rate = 0
  end
  if srcUser:GetNpcID() == 580101 or srcUser:GetNpcID() == 580102 or srcUser:GetNpcID() == 580103 or srcUser:GetNpcID() == 580104 or srcUser:GetNpcID() == 580105 then
    rate = 0
  end
  rate = CommonFun.Clamp(rate, 0, 100)
  return rate
end