Screen API

--# Demo for object oriented version of HPWebcamable's Screen API

os.loadAPI("screen") --# Load screen API as 'screen'

local main = screen.new(colors.white) --# Ask the api for a new screen, store it in 'main'

main.addObject({ --# Add an object
  name = "obj1",
  text = "Safety",
  minX=2, minY=2,
  maxX=9, maxY=4,
  clickable = true,
  action = function() --# When clicked, this button will...
	main.toggleObjectState("obj1") --# Toggle it's own state
	main.getObject("obj2").state = "off" --# Set the other object's state to "off"
	main.toggleObjectVisible("obj2") --# Toggle the other object's visibility
	main.toggleObjectClickable("obj2") --# Toggle the other object's clickablity
	main.draw() --# Draw the screen so that the buttons are updated
  end
})

main.addObject({ --# Add another object
  name = "obj2",
  text = "Fire!",
  minX=11, minY=2,
  maxX=17, maxY=4,
  visible = false,
  action = function() --# When clicked...
	main.toggleObjectState("obj2") --# Toggles itself
	main.draw() --# Updates the screen
  end
})

main.draw() --# Draw the screen for the first time

while true do --# Infinte loop
  local event = {main.handleEvents(true)} --# Ask the screen to check each event to see if it was a button being clicked
  if event[1] == "terminate" then --# The 'true' above is to use os.pullEventRaw, so we'll get terminate events
	term.setTextColor(colors.white) term.setBackgroundColor(colors.black) term.clear() term.setCursorPos(1,1) --# Clear the screen if the program is terminated
	return --# Stop the program when terminated
  end
end