Counter Attack Halo

1function CommonFun.calcBuff_6220(srcUser, targetUser, a, b, c, d, lv)
2  if srcUser == nil or targetUser == nil then
3    return 0
4  end
5  local Hp = srcUser:GetProperty("Hp")
6  if srcUser:HasBuffID(20720160_COUNTER_ATTACK_HALO_USES_MAX_HP_:MAX_STACK_0) then
7    Hp = srcUser:GetProperty("MaxHp")
8  end
9  local mapid, maptype = srcUser:GetMapInfo()
10  if maptype == PVP_MAPS then
11    Hp = Hp * 0.25
12  end
13  local DefReduc = CommonFun.CalcDef(srcUser, targetUser)
14  local DamReduc2 = CommonFun.calcDamReDuc(srcUser, targetUser)
15  local RefineDamReduc = CommonFun.calcRefineDamReduc(srcUser, targetUser)
16  local DamIncrease = srcUser:GetProperty("DamIncrease")
17  local skilllv = srcUser:GetLernedSkillLevel(3807_ROYAL_GUARD:COUNTER_ATTACK_HALO)
18  local GemValue = srcUser:GetGemValue(72142_COUNTER_ATTACK_HALO_DMG_PERCENTAGE)
19  local A = -(Hp * (skilllv * 0.1 + 0.1)) * DefReduc * (1 - DamReduc2) * (1 - RefineDamReduc) * (1 + DamIncrease) * (1 + GemValue / 100000)
20  local AttrFunction = srcUser:GetProperty("AttrFunction")
21  local bitfunc = CommonFun.getBits(AttrFunction)
22  if (targetUser.boss or targetUser.mini or targetUser.changelinepunish) and (targetUser.zoneType == 1 or targetUser.zoneType == 22) and targetUser.noPunishBoss == false and bitfunc[CommonFun.AttrFunction.JustInViceZone] == 1 and targetUser.isBossFromBranch == false then
23    A = 0
24  end
25  if CommonFun.checkAttrFunctionMiss(targetUser, srcUser) then
26    A = 0
27  end
28  if targetUser.boss and targetUser.zoneType == 22 and CommonFun.CheckStormBossMiss(targetUser, srcUser) then
29    A = 0
30  end
31  if targetUser:GetNpcID() == 30043_YEAR or targetUser:GetNpcID() == 280303_WILDNESS_SPIRIT_BEAST or targetUser:GetNpcID() == 56008_GOMORA or targetUser:GetNpcID() == 56009_BALTAN or targetUser:GetNpcID() == 56010_GOLZA or targetUser:GetNpcID() == 56011_BEMSTAR or targetUser:GetNpcID() == 56012_ELEKING or targetUser:GetNpcID() == 56013_KING_JOE then
32    A = -1
33  end
34  if targetUser:DamageAlways1() then
35    A = -1
36  end
37  return A
38end