Scrupp 0.4 contains version 2.0.2 of the Lua network library LuaSocket written by Diego Nehab.
The website of LuaSocket contains an introduction and a reference.
The doc directory of the Scrupp distribution contains a local snapshot of the LuaSocket documentation.
Everything described in this documentation works exactly the same way in Scrupp.
Example
-- size of the window
local width, height = 600, 400
scrupp.init("LuaSocket Test", width, height, 32, false)
-- loads the HTTP module and any libraries it requires
local http = require("socket.http")
-- download a screenshot from the scrupp website
local img = http.request("http://scrupp.sourceforge.net/screenshots/linux_default_thumb.png")
-- convert the string to a scrupp image
img = scrupp.addImageFromString(img)
-- get the size of the image
local w, h = img:getSize()
-- calculate the coordinates of the image (for center position)
local x, y = (width-w)/2, (height-h)/2
main = {
render = function(dt)
-- render the screenshot at the center of the window
img:render(x,y)
end,
keypressed = function(key)
if key == "ESCAPE" then
scrupp.exit()
end
end
}