Component: Screen

This component is provided by screen blocks (either when placed in the world or when installed in a robot).

Component name: screen.
Callbacks:

• isOn():boolean
  Returns whether the screen is currently on.
• turnOn():boolean
  Turns the screen on. Returns true if it was off.
• turnOff():boolean
  Turns off the screen. Returns true if it was on.
• getAspectRatio():number, number
  The aspect ratio of the screen. For multi-block screens this is the number of blocks, horizontal and vertical.
• getKeyboards():table
  The list of keyboards attached to the screen.