zues lines

local function distance3d(x1, y1, z1, x2, y2, z2)
    return math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1))
end





local function lerp_pos(x1, y1, z1, x2, y2, z2, percentage)
    local x = (x2 - x1) * percentage + x1
    local y = (y2 - y1) * percentage + y1
    local z = (z2 - z1) * percentage + z1
    return x, y, z
end

local function trace_line_skip_teammates( x1, y1, z1, x2, y2, z2, max_traces)
    local max_traces = max_traces or 10
    local fraction, entindex_hit = 0, -1
    local x_hit, y_hit, z_hit = x1, y1, z1

    local i=1
    while (entindex_hit == -1 ) and 1 > fraction and max_traces >= i do
    fraction, entindex_hit = engine.TraceLine( x_hit, y_hit, z_hit, x2, y2, z2,3)

        x_hit, y_hit, z_hit = lerp_pos(x_hit, y_hit, z_hit, x2, y2, z2, 1)

        i = i + 1
    end

    local traveled_total = distance3d(x1, y1, z1, x_hit, y_hit, z_hit)
    local total_distance = distance3d(x1, y1, z1, x2, y2, z2)

    return traveled_total/total_distance, entindex_hit
end

local function hsv_to_rgb(h, s, v, a)
  local r, g, b

  local i = math.floor(h * 6);
  local f = h * 6 - i;
  local p = v * (1 - s);
  local q = v * (1 - f * s);
  local t = v * (1 - (1 - f) * s);

  i = i % 6

  if i == 0 then r, g, b = v, t, p
  elseif i == 1 then r, g, b = q, v, p
  elseif i == 2 then r, g, b = p, v, t
  elseif i == 3 then r, g, b = p, q, v
  elseif i == 4 then r, g, b = t, p, v
  elseif i == 5 then r, g, b = v, p, q
  end

  return r * 255, g * 255, b * 255, a * 255
end




local weapon_name_prev = nil
local last_switch = 0
local accuracy = 2.5

local is_taser;
local is_knife;
local function on_item_equip(Event)

    if (Event:GetName() ~= 'item_equip') then
        return;
    end

    local local_player, userid, item, weptype = client.GetLocalPlayerIndex(), Event:GetInt('userid'), Event:GetString('item'), Event:GetInt('weptype');


    if (local_player == client.GetPlayerIndexByUserID(userid)) then
        if (item == "taser" ) then
           is_taser=true;
           is_knife=false;
        elseif (item=="knife")then
        is_knife=true;
         is_taser=false;
        else
        is_knife=false;
            is_taser=false;
        end
    end
end


client.AllowListener('item_equip');
callbacks.Register("FireGameEvent", "on_item_equip", on_item_equip);


local function on_paint()


    local local_player = entities.GetLocalPlayer();
    local curtime = globals.CurTime()



    local ranges
    local ranges_opacities
    if  is_taser then
        ranges = {183-16}
        ranges_opacities = {1}
elseif is_knife then
        ranges = {32, 48}
        ranges_opacities = {1, 0.2}
    end

    if ranges == nil then
        return
    end
     local Entity = entities.GetLocalPlayer();
      local Alive = Entity:IsAlive();
      if (Alive ~=true) then
      return

      end
    local local_x, local_y, local_z = Entity:GetAbsOrigin()
    local vo_z = Entity:GetProp("localdata", "m_vecViewOffset[2]")-4

fade_multiplier = 1
    for i=1, #ranges do
        local range = ranges[i]
        local opacity_multiplier = ranges_opacities[i] * fade_multiplier

        local previous_world_x, previous_world_y

        for rot=0, 360, accuracy do
            local rot_temp = math.rad(rot)
            local temp_x, temp_y, temp_z = local_x + range * math.cos(rot_temp), local_y + range * math.sin(rot_temp), local_z

            local fraction, entindex_hit = trace_line_skip_teammates( local_x, local_y, local_z, temp_x, temp_y, temp_z)

            --local fraction_x, fraction_y = local_x+(temp_x-local_x)*fraction, local_y+(temp_y-local_y)*fraction
            local fraction_x, fraction_y = lerp_pos(local_x, local_y, local_z, temp_x, temp_y, temp_z, fraction)
            local world_x, world_y = client.WorldToScreen( fraction_x, fraction_y, temp_z+vo_z)

            local hue_extra = globals.RealTime() % 8 / 8
            local r, g, b = hsv_to_rgb(rot/360+hue_extra, 1, 1, 255)

            local fraction_multiplier = 1
            if fraction > 0.9 then
                fraction_multiplier = 0.6
            end

            if world_x ~= nil and previous_world_x ~= nil then
            draw.Color( r, g, b, 255*opacity_multiplier*fraction_multiplier)
                draw.Line( world_x, world_y, previous_world_x, previous_world_y )
            end
            previous_world_x, previous_world_y = world_x, world_y
        end
    end

end




callbacks.Register( "Draw", "on_paint", on_paint);