Showing information when hovering over a player?

[jackwilsdon]

I am looking for a way to show text on the player when somebody looks at them (Like TTT does when it says their karma). Is there a hook for when a player looks at another player, or is it a property I can set?

[Fortune_.]

I remember seeing this somewhere. You could try having a client side tracer and when it hits someone it draws their name on the screen. I will try and find it, hang on.

--Edit

Found it, this might not be quite what you are looking for but I am sure you can change it to your liking.

function SPM.HUDPaint()
	local tr = utilx.GetPlayerTrace(LocalPlayer(), LocalPlayer():GetCursorAimVector())
	local trace = util.TraceLine(tr)
	if(!trace.Hit) then return end
	if(!trace.HitNonWorld) then return end
	local Entity = trace.Entity
	if(Entity:IsValid() and Entity:IsNPC() and Entity:GetNetworkedBool("IsPet") == true) then
		local Name = Entity:GetNetworkedString("Name")
		local Owner = Entity:GetNetworkedEntity("Player")
		local Age = Entity:GetNetworkedString("Age")
		local Gender = Entity:GetNetworkedString("Gender")
		
		local Pos = Entity:GetPos() - LocalPlayer():GetPos()
		local Length = Pos:Length()
		if(Length < 128) then
			Length = 128
		end
		local Alpha  = math.max(math.min(255 - ((255 / 1024) * Length), 255), 0)
		
		surface.SetFont("TargetID")
		local x, y = gui.MousePos()
		if(x == 0 and y == 0) then
			x = ScrW() / 2
			y = ScrH() / 2
		end
		
		draw.SimpleText("Name: "..Name, "ChatFont", x, y + 32, Color(255, 255, 255, Alpha), 1, 1)
		draw.SimpleText("Owner: "..Owner:Nick(), "ChatFont", x, y + 48, Color(255, 255, 255, Alpha), 1, 1)
		draw.SimpleText("Age: "..Age, "ChatFont", x, y + 64, Color(255, 255, 255, Alpha), 1, 1)
		draw.SimpleText("Gender: "..Gender, "ChatFont", x, y + 80, Color(255, 255, 255, Alpha), 1, 1)
	end
end
hook.Add("HUDPaint", "SPM.HUDPaint", SPM.HUDPaint)

[jackwilsdon]

I looked through the base Garry's Mod Lua code (which can be found [URL="https://github.com/garrynewman/garrysmod/"]here[/URL]), and found this to show a person's name when they are looked at.

--[[---------------------------------------------------------
   Name: gamemode:HUDDrawTargetID( )
   Desc: Draw the target id (the name of the player you're currently looking at)
-----------------------------------------------------------]]
function GM:HUDDrawTargetID()

	local tr = util.GetPlayerTrace( LocalPlayer() )
	local trace = util.TraceLine( tr )
	if (!trace.Hit) then return end
	if (!trace.HitNonWorld) then return end
	
	local text = "ERROR"
	local font = "TargetID"
	
	if (trace.Entity:IsPlayer()) then
		text = trace.Entity:Nick()
	else
		return
		--text = trace.Entity:GetClass()
	end
	
	surface.SetFont( font )
	local w, h = surface.GetTextSize( text )
	
	local MouseX, MouseY = gui.MousePos()
	
	if ( MouseX == 0 && MouseY == 0 ) then
	
		MouseX = ScrW() / 2
		MouseY = ScrH() / 2
	
	end
	
	local x = MouseX
	local y = MouseY
	
	x = x - w / 2
	y = y + 30
	
	-- The fonts internal drop shadow looks lousy with AA on
	draw.SimpleText( text, font, x+1, y+1, Color(0,0,0,120) )
	draw.SimpleText( text, font, x+2, y+2, Color(0,0,0,50) )
	draw.SimpleText( text, font, x, y, self:GetTeamColor( trace.Entity ) )
	
	y = y + h + 5
	
	local text = trace.Entity:Health() .. "%"
	local font = "TargetIDSmall"
	
	surface.SetFont( font )
	local w, h = surface.GetTextSize( text )
	local x =  MouseX  - w / 2
	
	draw.SimpleText( text, font, x+1, y+1, Color(0,0,0,120) )
	draw.SimpleText( text, font, x+2, y+2, Color(0,0,0,50) )
	draw.SimpleText( text, font, x, y, self:GetTeamColor( trace.Entity ) )

end

I assume you could just modify how it works (change the draw.SimpleText lines), and then add this hook to make it how you want :)

hook.add("HUDPaint", "NameOfCustomDrawTargetID", NameOfCustomDrawTargetID)

I also found the actual [URL="https://github.com/garrynewman/garrysmod/blob/master/garrysmod/gamemodes/terrortown/gamemode/cl_targetid.lua"]TTT DrawTargetID[/URL] too, but there's so much code it's not worth pasting here.