Walkbot v1.6

local walkbot = {LEFT = -1, RIGHT = 1}

walkbot.WalkKey = KEY_B
walkbot.MinWallDistance = 200
walkbot.DefaultStepMult = walkbot.LEFT
walkbot.StepDegrees = 15
walkbot.ThreeWallMult = 15 --180 / walkbot.StepDegrees
walkbot.Debug = false

walkbot.lp = LocalPlayer()
walkbot.walking = false
walkbot.ct = {mask = MASK_PLAYERSOLID}
walkbot.tr = nil
walkbot.td = nil

walkbot.DrawLine = function(tr)
    if (tr.Hit) then surface.SetDrawColor(0,255,0,255)
    else surface.SetDrawColor(255,0,0,255) end
    local start2d = tr.StartPos:ToScreen()
    local hit2d = tr.HitPos:ToScreen()
    surface.DrawLine(start2d.x, start2d.y, hit2d.x, hit2d.y)
end

walkbot.GetTurnDir = function()
    local leftt = {mask = MASK_PLAYERSOLID}
    leftt.start = walkbot.lp:GetPos()
    local leftv = Angle(0,walkbot.lp:EyeAngles().y + 90,0):Forward()
    leftt.endpos = leftt.start + (leftv * walkbot.MinWallDistance)
    leftt.filter = walkbot.lp
    local lefttr = util.TraceLine(leftt)
    if (walkbot.Debug) then walkbot.DrawLine(lefttr) end

    local rightt = {mask = MASK_PLAYERSOLID}
    rightt.start = walkbot.lp:GetPos()
    local rightv = Angle(0,walkbot.lp:EyeAngles().y - 90,0):Forward()
    rightt.endpos = rightt.start + (rightv * walkbot.MinWallDistance)
    rightt.filter = walkbot.lp
    local righttr = util.TraceLine(rightt)
    if (walkbot.Debug) then walkbot.DrawLine(righttr) end

    if (lefttr.Hit and righttr.Hit) then
        return walkbot.ThreeWallMult
    elseif (lefttr.Hit) then
        RunConsoleCommand("+moveright")
        timer.Simple(walkbot.MinWallDistance/1000,
            RunConsoleCommand, "-moveright")
        return walkbot.RIGHT
    elseif (righttr.Hit) then
        RunConsoleCommand("+moveleft")
        timer.Simple(walkbot.MinWallDistance/1000,
            RunConsoleCommand, "-moveleft")
        return walkbot.LEFT
    end

    return walkbot.DefaultStepMult
end

walkbot.main = function()
    if (input.IsKeyDown(walkbot.WalkKey)) then
        walkbot.GetTurnDir() //FIX WALL DISTANCE
        walkbot.ct.start = walkbot.lp:EyePos()
        walkbot.ct.endpos = walkbot.ct.start + (walkbot.lp:EyeAngles():Forward() * 16384)
        walkbot.ct.filter = walkbot.lp
        walkbot.tr = util.TraceLine(walkbot.ct)
        if (walkbot.Debug) then walkbot.DrawLine(walkbot.tr) end
        if (walkbot.tr.Hit) then
            walkbot.td = walkbot.tr.StartPos:Distance(walkbot.tr.HitPos)
            if (walkbot.td <= walkbot.MinWallDistance) then
                if (walkbot.walking) then RunConsoleCommand("-forward") end
                walkbot.lp:SetEyeAngles(walkbot.lp:EyeAngles() -
                    Angle(0,walkbot.StepDegrees*walkbot.GetTurnDir(),0))
            else
                RunConsoleCommand("+forward")
                walkbot.walking = true
            end
        end
        if (input.IsKeyDown(KEY_DELETE)) then
            hook.Remove("HUDPaint", "walkbot.main")
            RunConsoleCommand("-forward")
            walkbot = nil
        end
    elseif (walkbot.walking) then
        RunConsoleCommand("-forward")
        walkbot.walking = false
    end
end
hook.Add("HUDPaint", "walkbot.main", walkbot.main)

print([[    __  ____                _    ___   ______________
   /  |/  (_)______________| |  / / | / / ____/_  __/
  / /|_/ / // ___/ ___/ __ \ | / /  |/ / __/   / /
 / /  / / // /__/ /  / /_/ / |/ / /|  / /___  / /
/_/  /_/_/ \___/_/   \____/|___/_/ |_/_____/ /_/     ]])
print("====================WalkBot v1.6=====================")