Stock and distribute animations

AnimationManager.js

class AnimationManager {
  constructor () {
    this.animMap = new Map()

    // To manage the status of the menu during the transition
    // and lock clicks.
    this.menuInTransition = false
  }

  save (animName, tweenAnim) {
    this.animMap.set(animName, tweenAnim)
  }

  delete (animName) {
    this.animMap.delete(animName)
  }

  get (animName, callback) {
    const anim = this.animMap.get(animName)
    if (typeof (anim) !== 'function') {
      console.log(`ERROR.getAnimation(): ${animName} doesn't exist`)
      return undefined
    }

    const tween = anim(callback)
    return tween
  }
}

const am = new AnimationManager()
export default am