Text Above Head Problems

[EFEX03]

Hey guys so I am making my own schema for nutscript. I am currently working on the text above the head and have it all done. Except there are a few issues! I don't know how to make it so the text won't appear until you're 'barely looking at the player' and also I am not sure how to make the text not appear if you are behind a prop or obstacle. I have tried mimicking the way DarkRP does it, but I have had no luck. Below is this code if you are able to help me:

CreateClientConVar("namesonhead_textsize", 50, true, false)
CreateClientConVar("namesonhead_flagsize", 3, true, false)
CreateClientConVar("namesonhead_mode", 0, true, false)
local fontSize = GetConVarNumber("namesonhead_textsize") or 50



--local me = LocalPlayer()

local function initializeNamesOnHead()
   -- me = LocalPlayer()
    fontSize = GetConVarNumber("namesonhead_textsize") or 50
end

hook.Add("InitPostEntity", "NamesOnHead", initializeNamesOnHead)
local function paintNamesOnHeadHud()

    if (not me or not IsValid(me)) then
        me = LocalPlayer()

        return
    end


    for k, v in pairs(player.GetAll()) do
		if v:Alive() then
       if (v == me) then continue end
        local pos = (v:GetPos() + Vector(0, 0, 80)):ToScreen()
        local material
        local textWidth = surface.GetTextSize(v:Name())
        local alpha = 255 - math.Clamp(v:GetPos():Distance(me:GetPos()) * 0.65, 0, 255)
        local Page = Material("icon16/star.png")
        --local glow = math.abs(math.sin(CurTime() * 2) * 255); -- Math stuff for flashing.
        --local flashingRed = Color(glow, 0, 0); -- This flashes red.
        --local flashingGreen = Color(0, glow, 0); -- This flashes green.
        --local flashingBlue = Color(0, 0, glow); -- This flashes blue.
        local colorText = team.GetColor(v:Team())
        colorText.a = alpha
        
		if not v:getChar():getData("guild") then
		draw.SimpleTextOutlined(v:Name(), "ChatFont", pos.x, pos.y - 45, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("Class: ", "ChatFont", pos.x - 19, pos.y - 30, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined(team.GetName(v:Team()), "ChatFont", pos.x + 26, pos.y - 30, colorText, TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("HP: ", "ChatFont", pos.x - 37, pos.y - 15, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined(v:Health() .. " / " .. v:GetMaxHealth(), "ChatFont", pos.x + 10, pos.y - 15, Color(150, 50, 50, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("Level: " .. v:GetNWInt("level"), "ChatFont", pos.x, pos.y, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		
		
		if v:IsUserGroup("vip") then
            draw.SimpleTextOutlined("VIP", "ChatFont", pos.x + 10, pos.y + 18, Color(255, 191, 0, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
            surface.SetMaterial(Page)
            surface.SetDrawColor(255, 255, 255, alpha)
            surface.DrawTexturedRect(pos.x - 20, pos.y + 12, 15, 15)
        end
		
		end
		
		-- IF THERE IS A GUILD
		
		if v:getChar():getData("guild") then
		if (v == me) then continue end
		local rank = string.Right(v:getChar():getData("guild"),1)
		draw.SimpleTextOutlined(v:Name(), "ChatFont", pos.x, pos.y - 45, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("Guild: ", "ChatFont", pos.x - 80, pos.y - 30, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		if(tonumber(rank) == 2) then
		draw.SimpleTextOutlined(guildShorten(v:getChar():getData("guild")) .. " (Founder)", "ChatFont", pos.x + 28, pos.y - 30, Color(127, 95, 0, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		end
		if(tonumber(rank) == 1) then
		draw.SimpleTextOutlined(guildShorten(v:getChar():getData("guild")) .. " (Captain)", "ChatFont", pos.x + 28, pos.y - 30, Color(127, 95, 0, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		end		
		if(tonumber(rank) == 1) then
		draw.SimpleTextOutlined(guildShorten(v:getChar():getData("guild")) .. " (Member)", "ChatFont", pos.x + 28, pos.y - 30, Color(127, 95, 0, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		end			
		
		draw.SimpleTextOutlined("Class: ", "ChatFont", pos.x - 19, pos.y - 15, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined(team.GetName(v:Team()), "ChatFont", pos.x + 26, pos.y - 15, colorText, TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("HP: ", "ChatFont", pos.x - 37, pos.y, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined(v:Health() .. " / " .. v:GetMaxHealth(), "ChatFont", pos.x + 10, pos.y, Color(150, 50, 50, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
        draw.SimpleTextOutlined("Level: " .. v:GetNWInt("level"), "ChatFont", pos.x, pos.y + 15, Color(255, 255, 255, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
		
		 if v:IsUserGroup("vip") then
            draw.SimpleTextOutlined("VIP", "ChatFont", pos.x + 10, pos.y + 33, Color(255, 191, 0, alpha), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER, 2, Color(0, 0, 0, alpha))
            surface.SetMaterial(Page)
            surface.SetDrawColor(255, 255, 255, alpha)
            surface.DrawTexturedRect(pos.x - 20, pos.y + 25, 15, 15)
        end
		
		
		
		
end

		
		
		
		
		
    end
end
end
local lastMode = nil

hook.Add("Think", "NamesOnHead", function()
    local curFontSize = GetConVarNumber("namesonhead_textsize") or 50

    if (curFontSize ~= fontSize) then
        loadFont(curFontSize)
    end

    local curMode = GetConVarNumber("namesonhead_mode") or 0

    if (lastMode ~= curMode) then
        if (curMode == 1) then
            hook.Add("PostDrawTranslucentRenderables", "NamesOnHead", paintNamesOnHead3D)
            hook.Remove("HUDPaint", "NamesOnHead")
        else
            hook.Add("HUDPaint", "NamesOnHead", paintNamesOnHeadHud)
            hook.Remove("PostDrawTranslucentRenderables", "NamesOnHead")
        end

        lastMode = curMode
    end
end)