tszz-server/meta/userapi/lua/common/game/gamemap.lua

gamemap = {}

function gamemap.getMapKey(mapCfgId, mapLine)
    local v = tonumber(mapCfgId) << 11 | tonumber(mapLine)
    return v
end

function gamemap.parseMapKey(mapKey)
    mapKey = tonumber(mapKey)
    local mapCfgId = mapKey >> 11
    local mapLine = mapKey & 1023
    return mapCfgId, mapLine
end


--[[
function gamemap.getMapKey(mapCfgId, mapLine)
    local v = lshift(mapCfgId,11)
    v = bitwiseor(v,mapLine)
    return v
end

function gamemap.parseMapKey(mapKey)
    local mapCfgId = rshift(mapKey,11)
    local mapLine = bitwiseand(mapKey,1023)
    return mapCfgId, mapLine
end]]