Actions

As we mentioned before, only three Redux actions will be available:

• tick(): To calculate the next position of the sprites on the screen
• bounce(): To make the parrot fly up
• start(): To initialize the game variables

This means our src/actions/index.js file should be very simple:

/*** src/actions/index.js ***/

export function start() {
  return { type: "START" };
}

export function tick(elapsedTime) {
  return { type: "TICK", elapsedTime };
}

export function bounce() {
  return { type: "BOUNCE" };
}

Only the tick() action needs to pass a payload: the time it passed since the last frame.