http.Fetch PNG convert to .TXT

[LOT]

I found this the other day on this thread

The op last posted it as working but I have literally no idea how to implement it and it's not really
working for me.. Just Purple & Black BitMap errors..

Can anyone please explain my stupidity??

file.CreateDir( "cache_img" )

httpImg = httpImg or {}
httpImg.data = httpImg.data or {}

function httpImg:define( name, url )
if ( self.data[ name ] ) then return end

local exist = file.Exists( "cache_img/"..name..".txt", "DATA" )

if ( exist ) then
local da_mat = Material( "../data/cache_img/"..name..".txt\n.png" )
self.data[ name ] = da_mat
return
end

http.Fetch( url, function(data)
file.Write("cache_img/"..name..".txt", data)

local da_mat = Material( "../data/cache_img/"..name..".txt\n.png" )
self.data[ name ] = da_mat
end )
end

local DEFAULT_ERROR = Material( "error" )

function httpImg:get( name )
return self.data[ name ] or DEFAULT_ERROR
end

httpImg:define( "weapon", "http://www.springfield-armory.com/wp-content/uploads/2014/03/XD9649HCSP06_1200x782.png" )

hook.Add("HUDPaint", "shit", function()
surface.SetDrawColor(255, 255, 255)
surface.SetMaterial( httpImg:get( "weapon" ) )
surface.DrawTexturedRect(0, 0, 300, 120)
end)

[AwfulRanger]

file.Write can write image files now (.png, .jpg and .vtf), so you can replace the ".txt" and ".txt\n.png" bits with just ".png" and it should work.

[LOT]

Got an error :/ halp
[ERROR] addons/testhud/lua/autorun/test.lua:35: bad argument #1 to 'SetMaterial' (IMaterial expected, got nil)

  1. SetMaterial - [C]:-1

   2. fn - addons/test/lua/autorun/test.lua:35

    3. unknown - addons/ulib/lua/ulib/shared/hook.lua:110

[AwfulRanger]

Post your new code.

[LOT]

file.CreateDir( "cache_img" )

httpImg = httpImg or {}
httpImg.data = httpImg.data or {}

function httpImg:define( name, url )
if ( self.data[ name ] ) then return end

local exist = file.Exists( "cache_img/"..name..".png", "DATA" )

if ( exist ) then
local da_mat = Material( "../data/cache_img/"..name..".png" )
self.data[ name ] = da_mat
return
end

http.Fetch( url, function(data)
file.Write("cache_img/"..name..".png", data)

local da_mat = Material( "../data/cache_img/"..name..".png" )
self.data[ name ] = da_mat
end )
end

local DEFAULT_ERROR = Material( "error" )

function httpImg:get( name )
return self.data[ name ] or DEFAULT_ERROR
end

httpImg:define( "weapon", "http://www.springfield-armory.com/wp-content/uploads/2014/03/XD9649HCSP06_1200x782.png" )

hook.Add("HUDPaint", "shit", function()
    surface.SetDrawColor(255, 255, 255)
    surface.SetMaterial( weapon )
    surface.DrawTexturedRect(0, 0, 300, 120)
end)

[MPan1 banned]

It might be worth posting how you did it, so other people can learn as well.

[LOT]

file.CreateDir( "cache_img" )

httpImg = httpImg or {}
httpImg.data = httpImg.data or {}

function httpImg:define( name, url )
if ( self.data[ name ] ) then return end

local exist = file.Exists( "cache_img/"..name..".png", "DATA" )

if ( exist ) then
local da_mat = Material( "../data/cache_img/"..name..".png" )
self.data[ name ] = da_mat
return
end

http.Fetch( url, function(data)
file.Write("cache_img/"..name..".png", data)

local da_mat = Material( "../data/cache_img/"..name..".png" )
self.data[ name ] = da_mat
end )
end

local DEFAULT_ERROR = Material( "error" )

function httpImg:get( name )
return self.data[ name ] or DEFAULT_ERROR
end

httpImg:define( "face_punch", "https://upload.wikimedia.org/wikipedia/commons/d/d5/Facepunchtransparent.png" )

local function Icons()
if table.HasValue({"ceo", "superadmin", "head_admin", "admin"}, ply:GetNWString("usergroup")) then
surface.SetMaterial(Material("data/cache_img/face_punch.png"))
surface.SetDrawColor(255,255,255,255)
surface.DrawTexturedRect(W - 10.5 * 101, H - 135, 22,21.9) 

end

local function DrawHUD()
if not IsValid( ply ) then 
if IsValid( LocalPlayer() ) then
ply = LocalPlayer()
end
return
end

if ply:Alive() then

Icons()

end
end
hook.Add("HUDPaint","DrawHUD",DrawHUD)