Generated by XState Viz: https://xstate.js.org/viz

machine.js

const isWinner = ({ score, totalScore }) => score >= totalScore;

const playMachine = Machine({
  id: "play",
  initial: "playing",
  context: {
    score: 0,
    totalScore: 10
  },
  states: {
    playing: {
      entry: ["onRestart", assign({ score: 0 })],
      on: {
        UPDATE_SCORE: {
          actions: assign({
            score: (_, payload) => {
              const { score } = payload;
              return score;
            }
          })
        },
        "": {
          target: "win",
          cond: isWinner
        }
      }
    },
    win: {
      on: { RESTART: "playing" }
    }
  }
});