box.lua

function draw_box(ent, color)
   if not ent or not ent:IsPlayer() then return end

   -- Try head hitbox; fallback to eye position approximation if needed
   local head
   do
       local okh, vhead = pcall(function() return ent:GetHitboxPosition(0) end)
       if okh and vhead then
           head = vhead
       else
           local okeye, veye = pcall(function()
               return (ent.GetPropVector and ent:GetPropVector("m_vecOrigin")) or (ent.GetOrigin and ent:GetOrigin())
           end)
           if okeye and veye then
               head = { x = veye.x, y = veye.y, z = veye.z + 72 }
           else
               return
           end
       end
   end

   local feet
   do
       local okf, vfeet = pcall(function() return ent:GetAbsOrigin() end)
       if okf and vfeet then
           feet = vfeet
       else
           return
       end
   end

   local hx, hy = w2s(head)
   local fx, fy = w2s(feet)
   if not (hx and hy and fx and fy) then return end

   local height = math.abs(fy - hy)
   local width = height * 0.45
   local left = (fx - width * 0.5)
   local top = math.min(hy, fy)
   local right = left + width
   local bottom = math.max(hy, fy)

   local r = color.r or 255
   local g = color.g or 0
   local b = color.b or 0
   local a = color.a or 255

   draw.Color(r, g, b, a)
   draw.OutlinedRect(left, top, right, bottom)
   -- simple second outline for thickness/contrast
   draw.Color(0, 0, 0, a)
   draw.OutlinedRect(left - 1, top - 1, right + 1, bottom + 1)
end