include('shared.lua')

local matScreen 	= Material( "models/scroller/screen" )

// GetRenderTarget returns the texture if it exists, or creates it if it doesn't
local RTTexture 	= GetRenderTarget( "scrollx", 1024, 1024 )

surface.CreateFont( "coolvetica", 128, 500, false, false, "scrollt" )

local function DrawScrollingText( text, y, texwide )
	surface.SetDrawColor( 0, 0, 0, 255 )
	surface.DrawRect( 0, 0, 1024, 1024)
	w,h=surface.GetTextSize(text)
		h = h + 1024
		local x = math.fmod( CurTime()*150, w ) * -1;
		while ( x < texwide ) do
			surface.SetTextColor( 255, 255, 255, 255 )
			surface.SetTextPos( x, y )
			surface.DrawText( text )
			x = x + w
		end
end

function ENT:Draw()
	local NewRT = RTTexture
	self.Entity:DrawModel()	
	matScreen:SetMaterialTexture( "$basetexture", NewRT )
	local OldRT = render.GetRenderTarget();
	cam.Start2D()
	render.SetRenderTarget( NewRT )
		surface.SetFont( "scrollt" )
		DrawScrollingText( self.Entity:GetNetworkedString("text"), 256, 1024 )
	cam.End2D()
	render.SetRenderTarget( OldRT )
end