DynLoad Updated for Gmod 13

_R={}
function ValidEntity(e)
    return (e and IsValid(e))
end
local mt={__index=debug.getregistry}
setmetatable(_R, mt)
AddCSLuaFile("autorun/dynload.lua")
function file.FindDir(...)
    local files, dirs=file.Find(...)
    return dirs
end
dynLoad={}
if SERVER then
    dynLoad.UpdatedFiles={}
    function dynLoad.SendCodeToClient(v, ply)
        local code=v
        if !IsValid(ply) then
            ply=RecipientFilter():AddAllPlayers()
        end
        if code then
            for i=1, string.len(code)/200+1 do
                local ncode=string.sub(code, (i-1)*200, (i-1)*200+99)
                --Msg(ncode)
                --MsgN(string.len(ncode))
                umsg.Start("plugin_addcode", ply)
                    umsg.String("runCode")
                    umsg.String(ncode)
                umsg.End()
            end
            umsg.Start("plugin_runcode", ply)
                umsg.String("runCode")
            umsg.End()
        else
            error("Error!  Code not sent!", 2)
        end
    end

    function _R.Player:SendLua(str)
        dynLoad.SendCodeToClient(str, self)
    end

    function dynLoad.SendLuaToClient(v, ply)
        local code=file.Read("lua/"..v, "GAME")
        if !code then
            local hasFound=false
            for ind, addon in pairs(file.FindDir("addons/*", "GAME")) do
                if file.Read("addons/"..addon.."/lua/"..v, "GAME") and !hasFound then
                    code=file.Read("addons/"..addon.."/lua/"..v, "GAME")
                    hasFound=true
                end
            end
            if file.Read("gamemodes/"..v, "GAME") and !hasFound then
                code=file.Read("gamemodes/"..v, "GAME")
                hasFound=true
            end
        end
        if !IsValid(ply) then
            ply=RecipientFilter():AddAllPlayers()
        end
        if code then
            for i=1, string.len(code)/100+1 do
                local ncode=string.sub(code, (i-1)*100, (i-1)*100+99)
                --Msg(ncode)
                --MsgN(string.len(ncode))
                umsg.Start("plugin_addcode", ply)
                    umsg.String(v)
                    umsg.String(ncode)
                umsg.End()
            end
            umsg.Start("plugin_runcode", ply)
                umsg.String(v)
            umsg.End()
            if !table.HasValue(dynLoad.UpdatedFiles, v) then
                dynLoad.UpdatedFiles[#dynLoad.UpdatedFiles+1]=v
            end
        else
            ErrorNoHalt("File "..v.." not found (anywhere)!\n")
        end
    end

    concommand.Add("lua_sendfiletoclient", function(ply, cmd, args)
        if !ply:IsPlayer() then
            dynLoad.SendLuaToClient(string.Implode(" ", args))
        end
    end)

    concommand.Add("lua_openscript_cl", function(ply, cmd, args)
        if !ply:IsPlayer() then
            dynLoad.SendLuaToClient(string.Implode(" ", args))
        end
    end)

    concommand.Add("lua_openscript_dl", function(ply, cmd, args)
        if !ply:IsPlayer() then
            dynLoad.SendLuaToClient(string.Implode(" ", args))
            include(string.Implode(" ", args))
        end
    end)

    concommand.Add("lua_openscript_sh", function(ply, cmd, args)
        if !ply:IsPlayer() then
            dynLoad.SendLuaToClient(string.Implode(" ", args))
            include(string.Implode(" ", args))
        end
    end)

    hook.Add("PlayerInitialSpawn", "sendUpdatedFiles", function(ply)
        for f, v in pairs(dynLoad.UpdatedFiles) do
            dynLoad.SendLuaToClient(v, ply)
        end
    end)
end

if CLIENT then
    dynLoad.PluginCode={}

    usermessage.Hook("plugin_addcode", function(data)
        local fname=data:ReadString()
        local code=data:ReadString()
        if dynLoad.PluginCode[fname] then
            dynLoad.PluginCode[fname]=dynLoad.PluginCode[fname]..code
        else
            dynLoad.PluginCode[fname]=code
        end
    end)

    usermessage.Hook("plugin_runcode", function(data)
        local fname=data:ReadString()
        if !(fname=="runCode") then
            MsgN(fname.." loaded from server.")
        end
        RunString(dynLoad.PluginCode[fname])
        dynLoad.PluginCode[fname]=nil
    end)
end