vaalentin/game-loop

Game loop

Simple game loop.

Installation

$ npm install --save @vaalentin/game-loop

Usage

import GameLoop from '@vaalentin/game-loop';

const loop = new GameLoop(30);

loop.on('init', () => {
  // called once
});

loop.on('update', dt => {
  // called 30 times per second
});

loop.on('render', dt => {
  // called as fast as possible, usually 60 times a sec
});

API

GameLoop inherits from EventDispatcher.

loop = new GameLoop(fps, speed)

Where fps is a number that dictates how many times per second the update will be called. This is used to get a constant timestep (default is 60). speed is a number from (usually from 0 to 2), to increase/reduce the timestep (default is 1).

loop.start()

Start loop.

loop.stop()

Stop loop.

loop.dispose()

Delete instance. Calls loop.stop().

Events

• init Called once, when the loop starts for the first time.
• start Called every time the loop starts.
• stop Called every time the loop stops.
• update Called at a constant interval, given by the fps parameter.
• render Called as fast as requestAnimationFrame can go.

License

MIT, see LICENSE.md for more details.