player detector but environnement

local envd = peripheral.find("environmentDetector")
list_ = fs.open("allow_list.txt","r")
list = textutils.unserialize(list_.readAll())
list_.close()
function has(table,compare)
    for _,b in pairs(table) do
        if b == compare then
            return true
        end
    end
    return false
end
open = false
while true do
    open = false
    entities = envd.scanEntities(2) or {}
    for _,tab in pairs(entities) do
        for type,data in pairs(tab) do
            if type == "name" then
                if has(list,data) then
                    print(data)
                    rs.setOutput("bottom",true)
                    open = true
                    sleep(2 )
                end
            end
        end
    end
    if not open then
        rs.setOutput("bottom",false)
    end
    sleep()
end