play-state-machine.js

const PlayStateMachine = Machine(
  {
    id: 'game',
    initial: 'idle',
    states: {
      idle: {
        on: {
          INIT: 'waiting',
        },
      },
      waiting: {
        exit: ['stopWaiting'],
        on: {
          QUORUM: 'quorum',
        },
      },
      quorum: {
        on: {
          QUORUM_FAIL: 'waiting',
          START_GAME: 'newRound',
        },
      },
      newRound: {
        entry: ['beginRound'],
        on: {
          ROUND_READY: 'roundIntro',
          QUORUM_FAIL: 'waiting',
          NO_ARTISTS: 'quorum',
        },
      },
      roundIntro: {
        entry: ['beginRoundIntro'],
        exit: ['stopTimer'],
        on: {
          TIMER: 'playing',
          ARTIST_READY: 'playing',
          ARTIST_SKIP: 'skipped',
          ARTIST_LEAVE: 'newRound',
          QUORUM_FAIL: 'waiting',
        },
      },
      playing: {
        entry: ['beginPlaying'],
        exit: ['stopPlaying'],
        on: {
          TIMER: 'reveal',
          ALL_ANSWERS: 'reveal',
          ARTIST_LEAVE: 'newRound',
          ARTIST_DERP: 'skipped',
          QUORUM_FAIL: 'waiting',
        },
      },
      skipped: {
        entry: ['beginSkipped'],
        exit: ['stopTimer'],
        on: {
          TIMER: 'newRound',
          QUORUM_FAIL: 'waiting',
        },
      },
      reveal: {
        entry: ['beginReveal'],
        exit: ['stopTimer'],
        on: {
          TIMER: 'newRound',
          QUORUM_FAIL: 'waiting',
        },
      },
    },
  },
);