Emulator playground

This is CraftOS from CC: Tweaked, running in a sandbox in your browser. Edit startup.lua, pick a monitor and press Run.

startup.lua

-- Welcome to the ccbin emulator playground!
-- This is real CraftOS (CC: Tweaked) running in your browser.
-- Edit this program, pick a monitor size and press Run.

term.setTextColour(colours.yellow)
print("Hello from ccbin.dev!")
term.setTextColour(colours.white)
print(os.version() .. " on " .. _HOST)

local monitor = peripheral.find("monitor")
if monitor then
  monitor.setTextScale(0.5)
  monitor.setBackgroundColour(colours.blue)
  monitor.clear()
  local w, h = monitor.getSize()
  local text = "ccbin.dev"
  monitor.setCursorPos(math.floor((w - #text) / 2) + 1, math.floor(h / 2))
  monitor.setTextColour(colours.yellow)
  monitor.write(text)
  print(("Monitor attached: %dx%d characters"):format(w, h))
end

-- Networking is sandboxed: unless you turn on live network, nothing
-- leaves your browser. Mocks, ccbin's code-host resolver (Pastebin, GitHub,
-- ccbin) and placeholders answer instead. See the Network panel.
print("Trying http.get(\"https://example.com/hello.txt\") ...")
local response, err = http.get("https://example.com/hello.txt")
if response then
  term.setTextColour(colours.lime)
  print("Sandbox answered: " .. response.readAll())
  term.setTextColour(colours.white)
  response.close()
else
  term.setTextColour(colours.red)
  print(err)
  term.setTextColour(colours.white)
end

Requests nothing else answers Placeholder Fail

Advanced computer & monitor Speaker

Press Run to boot a computer.

Network

Every request the program makes, and how the sandbox answered it. The program's own mocks answer first. Pastebin, GitHub and ccbin downloads go through ccbin. Anything else gets a placeholder, or an error if the scene says so. Nothing else leaves your browser unless you turn on live network.