Formula
CommonFun.calcBuff_6873
function CommonFun.calcBuff_6873(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local A = a * lv + b
local mapid, maptype = srcUser:GetMapInfo()
if maptype == 3 then
A = 0
end
return A
end