terminal-joystick

:video_game: A joystick for your terminal.

:warning: Highly experimental

Install

npm i -S terminal-joystick

Usage

const { TerminalJoystick, ON_DRAG } = require('terminal-joystick');

const joystick = new TerminalJoystick({
  title : 'Joystick - Example',
});

joystick.on(ON_DRAG, ({ angle, intensity }) => {
  // Do stuff...
});

joystick.on(ON_DRAG_END, ({ angle, intensity }) => {
  // Do stuff...
});

Using with blessed

To add terminal-joystick to an existing blessed application, you just need to provide a reference to the blessed.screen object and a parent container :

const { TerminalJoystick, ON_DRAG } = require('terminal-joystick');

const screen = blessed.screen();
const container = new blessed.Box({
  left : 'center',
  top  : 'center',
  width : '100%',
  height : '100%',
});

const joystick = new TerminalJoystick({
  parent : container,
  title : 'Joystick - Example',
  screen,
});

joystick.on(ON_DRAG, ({ angle, intensity }) => {
  // Do stuff...
});

API

• new TerminalJoystick(opts)
  • screen : reference to an existing blessed screen (optional)
  • container :
    • size : pad's size (default : 100)
    • All blessed.Element properties
  • joystick :
    • size : joystick's size (default : 15)
    • All blessed.Element properties
  • title : terminal tab title (optional) / Only used if screen is not provided
  • noReturnToOrigin : A flag to disable the joystick return to its initial position when mouse click is released.
• on(event, handler) : TerminalJoystick extends EventEmitter.
  • ON_DRAG : emitted when the joystick is dragged.
    • angle : angle in degress (0-360) between the joystick and the x-axis.
    • intensity : distance from the center (0-1)
    • x : coordinate along the x-axis between -1 and 1
    • y : coordinate along the y-axis between -1 and 1
  • ON_DRAG_END : emitted when the mouse click is released.