local function SquaredDistance(a,b)
    return (a -b):LengthSqr()
end

local function FindClosest(ent,tEnts)
    local pos = ent:GetPos()
    local dClosest = math.huge
    local entClosest
    for _,entTgt in ipairs(tEnts) do
        local posTgt = entTgt:GetPos()
        local dSqr = SquaredDistance(pos,posTgt)
        if(dSqr < dClosest) then
            dClosest = dSqr
            entClosest = entTgt
        end
    end
    local dist = math.sqrt(dClosest) // ACTUAL DISTANCE
    return entClosest,dist
end
local entClosest = FindClosest(player.GetAll()[1],ents.GetAll())